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Midwest Energy Emissions Corp. – ‘10-Q’ for 9/30/22 – ‘EX-101.SCH’

On:  Monday, 11/14/22, at 1:55pm ET   ·   For:  9/30/22   ·   Accession #:  1477932-22-8466   ·   File #:  0-33067

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  As Of               Filer                 Filing    For·On·As Docs:Size             Issuer                      Filing Agent

11/14/22  Midwest Energy Emissions Corp.    10-Q        9/30/22   70:5.1M                                   Discount Edgar/FA

Quarterly Report   —   Form 10-Q

Filing Table of Contents

Document/Exhibit                   Description                      Pages   Size 

 1: 10-Q        Quarterly Report                                    HTML    989K 
 2: EX-31.1     Certification -- §302 - SOA'02                      HTML     23K 
 3: EX-31.2     Certification -- §302 - SOA'02                      HTML     23K 
 4: EX-32.1     Certification -- §906 - SOA'02                      HTML     19K 
 5: EX-32.2     Certification -- §906 - SOA'02                      HTML     19K 
11: R1          Cover                                               HTML     66K 
12: R2          Condensed Consolidated Balance Sheets               HTML    120K 
13: R3          Condensed Consolidated Balance Sheets               HTML     37K 
                (Parenthetical)                                                  
14: R4          Condensed Consolidated Statements of Operations     HTML     77K 
                (Unaudited)                                                      
15: R5          Condensed Consolidated Statements of Stockholders   HTML     93K 
                Deficit (Unaudited)                                              
16: R6          Condensed Consolidated Statements of Cash Flows     HTML    117K 
                (Unaudited)                                                      
17: R7          Organization                                        HTML     23K 
18: R8          Summary of Significant Accounting Policies          HTML    104K 
19: R9          Liquidity and Financial Condition                   HTML     24K 
20: R10         Inventory                                           HTML     26K 
21: R11         Property and Equipment, Net                         HTML     33K 
22: R12         Intellectual Property                               HTML     29K 
23: R13         Notes Payable                                       HTML     22K 
24: R14         Convertible Notes Payable                           HTML     29K 
25: R15         Related Party                                       HTML     57K 
26: R16         Operating Leases                                    HTML     32K 
27: R17         Commitments and Contingencies                       HTML     27K 
28: R18         Stock Based Compensation                            HTML     52K 
29: R19         Warrants                                            HTML     51K 
30: R20         Subsequent Events                                   HTML     24K 
31: R21         Summary Of Significant Accounting Policies          HTML    129K 
                (Policies)                                                       
32: R22         Summary of Significant Accounting Policies          HTML     84K 
                (Tables)                                                         
33: R23         Inventory (Tables)                                  HTML     27K 
34: R24         Property And Equipment Net (Tables)                 HTML     31K 
35: R25         Intellectual Property (Tables)                      HTML     25K 
36: R26         Related Party (Tables)                              HTML     41K 
37: R27         Operating Leases (Tables)                           HTML     31K 
38: R28         Stock Based Compensation (Tables)                   HTML     41K 
39: R29         Warrants (Tables)                                   HTML     49K 
40: R30         Summary of Significant Accounting Policies          HTML     34K 
                (Details)                                                        
41: R31         Summary of Significant Accounting Policies          HTML     35K 
                (Details 1)                                                      
42: R32         Summary of Significant Accounting Policies          HTML     25K 
                (Details 2)                                                      
43: R33         Summary of Significant Accounting Policies          HTML     24K 
                (Details 3)                                                      
44: R34         Summary of Significant Accounting Policies          HTML     46K 
                (Details Narrative)                                              
45: R35         Liquidity and Financial Condition (Details          HTML     50K 
                Narrative)                                                       
46: R36         Inventory (Details)                                 HTML     27K 
47: R37         Property And Equipment Net (Details)                HTML     31K 
48: R38         Property And Equipment Net (Details Narrative)      HTML     23K 
49: R39         Intellectual Property (Details)                     HTML     25K 
50: R40         Intellectual Property (Details Narrative)           HTML     49K 
51: R41         Notes Payable (Details Narrative)                   HTML     37K 
52: R42         Convertible Notes Payable (Details Narrative)       HTML     74K 
53: R43         Related party (Details)                             HTML     30K 
54: R44         Related party (Details 1)                           HTML     26K 
55: R45         Related party (Details Narrative)                   HTML     98K 
56: R46         Operating Leases (Details)                          HTML     29K 
57: R47         Operating Leases (Details 1)                        HTML     25K 
58: R48         Operating Leases (Details Narrative)                HTML     37K 
59: R49         Commitments and Contingencies (Details Narrative)   HTML     20K 
60: R50         Stock Based Compensation (Details)                  HTML     56K 
61: R51         Stock Based Compensation (Details Narrative)        HTML     93K 
62: R52         Warrants (Details)                                  HTML     46K 
63: R53         Warrants (Details 1)                                HTML     27K 
64: R54         Warrants (Details Narrative)                        HTML     30K 
65: R55         Subsequent Events (Details Narrative)               HTML     23K 
68: XML         IDEA XML File -- Filing Summary                      XML    123K 
66: XML         XBRL Instance -- meec_10q_htm                        XML   1.23M 
67: EXCEL       IDEA Workbook of Financial Reports                  XLSX    118K 
 8: EX-101.CAL  XBRL Calculations -- meec-20220930_cal               XML    137K 
10: EX-101.DEF  XBRL Definitions -- meec-20220930_def                XML    488K 
 7: EX-101.LAB  XBRL Labels -- meec-20220930_lab                     XML    878K 
 9: EX-101.PRE  XBRL Presentations -- meec-20220930_pre              XML    723K 
 6: EX-101.SCH  XBRL Schema -- meec-20220930                         XSD    205K 
69: JSON        XBRL Instance as JSON Data -- MetaLinks              340±   457K 
70: ZIP         XBRL Zipped Folder -- 0001477932-22-008466-xbrl      Zip    198K

‘EX-101.SCH’   —   XBRL Schema — meec-20220930

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<link:usedOn> link:definitionLink </link:usedOn>
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<link:roleType roleURI="http://meec.com/role/RelatedPartyDetailsNarrative" id="RelatedPartyDetailsNarrative">
<link:definition> 000045 - Disclosure - Related party (Details Narrative) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType roleURI="http://meec.com/role/OperatingLeasesDetails" id="OperatingLeasesDetails">
<link:definition> 000046 - Disclosure - Operating Leases (Details) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType roleURI="http://meec.com/role/OperatingLeasesDetails1" id="OperatingLeasesDetails1">
<link:definition> 000047 - Disclosure - Operating Leases (Details 1) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType roleURI="http://meec.com/role/OperatingLeasesDetailsNarrative" id="OperatingLeasesDetailsNarrative">
<link:definition> 000048 - Disclosure - Operating Leases (Details Narrative) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType roleURI="http://meec.com/role/CommitmentsAndContingenciesDetailsNarrative" id="CommitmentsAndContingenciesDetailsNarrative">
<link:definition> 000049 - Disclosure - Commitments and Contingencies (Details Narrative) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType roleURI="http://meec.com/role/StockBasedCompensationDetails" id="StockBasedCompensationDetails">
<link:definition> 000050 - Disclosure - Stock Based Compensation (Details) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType roleURI="http://meec.com/role/StockBasedCompensationDetailsNarrative" id="StockBasedCompensationDetailsNarrative">
<link:definition> 000051 - Disclosure - Stock Based Compensation (Details Narrative) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType roleURI="http://meec.com/role/WarrantsDetails" id="WarrantsDetails">
<link:definition> 000052 - Disclosure - Warrants (Details) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType roleURI="http://meec.com/role/WarrantsDetails1" id="WarrantsDetails1">
<link:definition> 000053 - Disclosure - Warrants (Details 1) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType roleURI="http://meec.com/role/WarrantsDetailsNarrative" id="WarrantsDetailsNarrative">
<link:definition> 000054 - Disclosure - Warrants (Details Narrative) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType roleURI="http://meec.com/role/SubsequentEventsDetailsNarrative" id="SubsequentEventsDetailsNarrative">
<link:definition> 000055 - Disclosure - Subsequent Events (Details Narrative) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:linkbaseRef xlink:type="simple" xlink:href="meec-20220930_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase"/>
<link:linkbaseRef xlink:type="simple" xlink:href="meec-20220930_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase"/>
<link:linkbaseRef xlink:type="simple" xlink:href="meec-20220930_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase"/>
<link:linkbaseRef xlink:type="simple" xlink:href="meec-20220930_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase"/>
</appinfo>
</annotation>
<import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd"/>
<import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd"/>
<import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd"/>
<import namespace="http://xbrl.sec.gov/country/2022" schemaLocation="https://xbrl.sec.gov/country/2022/country-2022.xsd"/>
<import namespace="http://xbrl.sec.gov/currency/2022" schemaLocation="https://xbrl.sec.gov/currency/2022/currency-2022.xsd"/>
<import namespace="http://xbrl.sec.gov/dei/2022" schemaLocation="https://xbrl.sec.gov/dei/2022/dei-2022.xsd"/>
<import namespace="http://www.xbrl.org/dtr/type/non-numeric" schemaLocation="http://www.xbrl.org/dtr/type/nonNumeric-2009-12-16.xsd"/>
<import namespace="http://www.xbrl.org/dtr/type/numeric" schemaLocation="http://www.xbrl.org/dtr/type/numeric-2009-12-16.xsd"/>
<import namespace="http://xbrl.sec.gov/exch/2022" schemaLocation="https://xbrl.sec.gov/exch/2022/exch-2022.xsd"/>
<import namespace="http://www.xbrl.org/2009/arcrole/fact-explanatoryFact" schemaLocation="http://www.xbrl.org/lrr/arcrole/factExplanatory-2009-12-16.xsd"/>
<import namespace="http://www.xbrl.org/2009/role/negated" schemaLocation="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd"/>
<import namespace="http://www.xbrl.org/2009/role/net" schemaLocation="http://www.xbrl.org/lrr/role/net-2009-12-16.xsd"/>
<import namespace="http://xbrl.sec.gov/naics/2022" schemaLocation="https://xbrl.sec.gov/naics/2022/naics-2022.xsd"/>
<import namespace="http://xbrl.sec.gov/sic/2022" schemaLocation="https://xbrl.sec.gov/sic/2022/sic-2022.xsd"/>
<import namespace="http://fasb.org/srt-roles/2022" schemaLocation="https://xbrl.fasb.org/srt/2022/elts/srt-roles-2022.xsd"/>
<import namespace="http://fasb.org/srt-types/2022" schemaLocation="https://xbrl.fasb.org/srt/2022/elts/srt-types-2022.xsd"/>
<import namespace="http://www.xbrl.org/dtr/type/2020-01-21" schemaLocation="https://www.xbrl.org/dtr/type/2020-01-21/types.xsd"/>
<import namespace="http://xbrl.sec.gov/stpr/2022" schemaLocation="https://xbrl.sec.gov/stpr/2022/stpr-2022.xsd"/>
<import namespace="http://fasb.org/us-roles/2022" schemaLocation="https://xbrl.fasb.org/us-gaap/2022/elts/us-roles-2022.xsd"/>
<import namespace="http://fasb.org/us-types/2022" schemaLocation="https://xbrl.fasb.org/us-gaap/2022/elts/us-types-2022.xsd"/>
<import namespace="http://fasb.org/srt/2022" schemaLocation="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd"/>
<import namespace="http://fasb.org/us-gaap/2022" schemaLocation="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd"/>
<element id="meec_CurrentPortionOfEquipmentNotesPayable" name="CurrentPortionOfEquipmentNotesPayable" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/>
<element id="meec_CurrentPortionOfOperatingLeaseLiability" name="CurrentPortionOfOperatingLeaseLiability" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/>
<element id="meec_SecuredNotePayableRelatedParty" name="SecuredNotePayableRelatedParty" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/>
<element id="meec_UnsecuredNotePayableNetOfDiscountAndIssuanceCostsRelatedParty" name="UnsecuredNotePayableNetOfDiscountAndIssuanceCostsRelatedParty" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/>
<element id="meec_PrepaidExpensesAndOtherCurrentAssets" name="PrepaidExpensesAndOtherCurrentAssets" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/>
<element id="meec_AccountsPayableAndAccruedExpensesRelatedParty" name="AccountsPayableAndAccruedExpensesRelatedParty" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/>
<element id="meec_WeightedAverageCommonSharesOutstandingBasicAndDiluted" name="WeightedAverageCommonSharesOutstandingBasicAndDiluted" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item"/>
<element id="meec_NetIncomeLossPerCommonShareDiluted" name="NetIncomeLossPerCommonShareDiluted" nillable="true" xbrli:periodType="duration" type="num:perShareItemType" substitutionGroup="xbrli:item"/>
<element id="meec_WeightedAverageCommonSharesOutstandingDilutive" name="WeightedAverageCommonSharesOutstandingDilutive" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item"/>
<element id="meec_IssuanceOfWarrantsRecordedAsDiscountOnConvertibleNotesPayable" name="IssuanceOfWarrantsRecordedAsDiscountOnConvertibleNotesPayable" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item"/>
<element id="meec_StockIssuedForCashlessExerciseOfWarrantsShares" name="StockIssuedForCashlessExerciseOfWarrantsShares" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item"/>
<element id="meec_StockIssuedForCashlessExerciseOfWarrantsAmount" name="StockIssuedForCashlessExerciseOfWarrantsAmount" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/>
<element id="meec_StockIssuedForExerciseOfStockOptionsShares" name="StockIssuedForExerciseOfStockOptionsShares" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item"/>
<element id="meec_StockIssuedForExerciseOfStockOptionsAmount" name="StockIssuedForExerciseOfStockOptionsAmount" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/>
<element id="meec_StockIssuedForCashlessExerciseOfStockOptionsShares" name="StockIssuedForCashlessExerciseOfStockOptionsShares" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item"/>
<element id="meec_IssuanceOfStockForConversionOfConvertibleNotesShares" name="IssuanceOfStockForConversionOfConvertibleNotesShares" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item"/>
<element id="meec_IssuanceOfStockForConversionOfConvertibleNotesAmount" name="IssuanceOfStockForConversionOfConvertibleNotesAmount" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/>
<element id="meec_StockIssuedForCashlessExerciseOfOptionsShares" name="StockIssuedForCashlessExerciseOfOptionsShares" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item"/>
<element id="meec_StockIssuedForCashlessExerciseOfStockOptionsValue" name="StockIssuedForCashlessExerciseOfStockOptionsValue" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/>
<element id="meec_IssuanceOfStockForCompensationShares" name="IssuanceOfStockForCompensationShares" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item"/>
<element id="meec_IssuanceOfStockForCompensationValue" name="IssuanceOfStockForCompensationValue" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/>
<element id="meec_StockBasedCompensationAmortizationOfPrepaidServices" name="StockBasedCompensationAmortizationOfPrepaidServices" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/>
<element id="meec_AmortizationOfPatents" name="AmortizationOfPatents" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/>
<element id="meec_GainLossOnChangeInFairValueOfProfitShare" name="GainLossOnChangeInFairValueOfProfitShare" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/>
<element id="meec_IncreaseDecreaseAccruedSalaries" name="IncreaseDecreaseAccruedSalaries" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/>
<element id="meec_PaymentsOfEquipmentNotesPayable" name="PaymentsOfEquipmentNotesPayable" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/>
<element id="meec_ProceedsFromShortTermDebtRelatedParty" name="ProceedsFromShortTermDebtRelatedParty" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/>
<element id="meec_CashPaidDuringThePeriodForAbstract" name="CashPaidDuringThePeriodForAbstract" nillable="true" abstract="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item"/>
<element id="meec_StockIssuedForPrepaidServices" name="StockIssuedForPrepaidServices" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/>
<element id="meec_StockIssuedForConversionOfConvertibleNotes" name="StockIssuedForConversionOfConvertibleNotes" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/>
<element id="meec_StockIssuedForInterestPayable" name="StockIssuedForInterestPayable" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/>
<element id="meec_DisaggregationOfRevenueTextBlock" name="DisaggregationOfRevenueTextBlock" nillable="true" xbrli:periodType="duration" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item"/>
<element id="meec_CustomerAndSupplierConcentrationpolicytextblock" name="CustomerAndSupplierConcentrationpolicytextblock" nillable="true" xbrli:periodType="duration" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item"/>
<element id="meec_LicenseCostsCapitalizedTableTextBlock" name="LicenseCostsCapitalizedTableTextBlock" nillable="true" xbrli:periodType="duration" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item"/>
<element id="meec_ScheduleOfUnsecuredNotesPayable" name="ScheduleOfUnsecuredNotesPayable" nillable="true" xbrli:periodType="duration" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item"/>
<element id="meec_FutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock" name="FutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock" nillable="true" xbrli:periodType="duration" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item"/>
<element id="meec_ScheduleOfWarrantTableTextBlock" name="ScheduleOfWarrantTableTextBlock" nillable="true" xbrli:periodType="duration" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item"/>
<element id="meec_SummaryOfCommonStockWarrantsOutstanding" name="SummaryOfCommonStockWarrantsOutstanding" nillable="true" xbrli:periodType="duration" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item"/>
<element id="meec_ProfitShareLiabilityRelatedParty" name="ProfitShareLiabilityRelatedParty" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/>
<element id="meec_NewPlaceHolderElement" name="NewPlaceHolderElement" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/>
<element id="meec_LicenseRevenue" name="LicenseRevenue" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/>
<element id="meec_EquipmentRevenue" name="EquipmentRevenue" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/>
<element id="meec_WeightedAverageCommonStockOutstanding" name="WeightedAverageCommonStockOutstanding" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item"/>
<element id="meec_Dilutivestockoption" name="Dilutivestockoption" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item"/>
<element id="meec_ConcentrationRiskPercentage" name="ConcentrationRiskPercentage" nillable="true" xbrli:periodType="duration" type="num:percentItemType" substitutionGroup="xbrli:item"/>
<element id="meec_WorkingCapital" name="WorkingCapital" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/>
<element id="meec_LessAccumulatedDepreciation" name="LessAccumulatedDepreciation" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/>
<element id="meec_MethodOfDepreciationDescription" name="MethodOfDepreciationDescription" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item"/>
<element id="meec_LicensesAndPatents" name="LicensesAndPatents" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/>
<element id="meec_SharesIssuedValue" name="SharesIssuedValue" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/>
<element id="meec_NumberOfPatentApplications" name="NumberOfPatentApplications" nillable="true" xbrli:periodType="instant" type="xbrli:integerItemType" substitutionGroup="xbrli:item"/>
<element id="meec_CommonStockPriceExceed" name="CommonStockPriceExceed" nillable="true" xbrli:periodType="instant" type="num:perShareItemType" substitutionGroup="xbrli:item"/>
<element id="meec_ConvertibleNotesSold" name="ConvertibleNotesSold" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/>
<element id="meec_UnsecuredNotePayable" name="UnsecuredNotePayable" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/>
<element id="meec_FairValueAdjustmentOnExtinguishment" name="FairValueAdjustmentOnExtinguishment" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/>
<element id="meec_UnsecuredNotePayableNetOfCurrentPortion" name="UnsecuredNotePayableNetOfCurrentPortion" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/>
<element id="meec_ProfitShareBeginningBalance" name="ProfitShareBeginningBalance" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/>
<element id="meec_Addition" name="Addition" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/>
<element id="meec_ProfitShareEndingBalance" name="ProfitShareEndingBalance" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/>
<element id="meec_PurchaseOfPickUpTruckFromCfo" name="PurchaseOfPickUpTruckFromCfo" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/>
<element id="meec_InterestExpenses" name="InterestExpenses" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/>
<element id="meec_UnamortizedBalanceOfDiscount" name="UnamortizedBalanceOfDiscount" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/>
<element id="meec_ExtensionOfMaturityDate" name="ExtensionOfMaturityDate" nillable="true" xbrli:periodType="duration" type="xbrli:dateItemType" substitutionGroup="xbrli:item"/>
<element id="meec_DebtOutstandingAmount" name="DebtOutstandingAmount" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/>
<element id="meec_RelatedPartyDebtRestructuringResultingInCapitalContribution" name="RelatedPartyDebtRestructuringResultingInCapitalContribution" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/>
<element id="meec_FairValueInputDiscountForLackOfMarketability" name="FairValueInputDiscountForLackOfMarketability" nillable="true" xbrli:periodType="duration" type="num:percentItemType" substitutionGroup="xbrli:item"/>
<element id="meec_IncreaseinDebtInstrumentAnnualPrincipalPayment" name="IncreaseinDebtInstrumentAnnualPrincipalPayment" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/>
<element id="meec_FairValueOfSharingProfit" name="FairValueOfSharingProfit" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/>
<element id="meec_YearlyPaymentDescription" name="YearlyPaymentDescription" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item"/>
<element id="meec_NetLicensingRevenue" name="NetLicensingRevenue" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/>
<element id="meec_RepaymentOfDebtDescription" name="RepaymentOfDebtDescription" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item"/>
<element id="meec_PercentagesOfRemainingOutstandingPrincipalBalance" name="PercentagesOfRemainingOutstandingPrincipalBalance" nillable="true" xbrli:periodType="duration" type="num:percentItemType" substitutionGroup="xbrli:item"/>
<element id="meec_PercentagesOfAggregateOutstandingPrincipalBalance" name="PercentagesOfAggregateOutstandingPrincipalBalance" nillable="true" xbrli:periodType="duration" type="num:percentItemType" substitutionGroup="xbrli:item"/>
<element id="meec_ProfitShareValuation" name="ProfitShareValuation" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/>
<element id="meec_ProfitShareValuationAdjusted" name="ProfitShareValuationAdjusted" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/>
<element id="meec_OperatingLeaseFutureMinimumPaymentsDueCurrent" name="OperatingLeaseFutureMinimumPaymentsDueCurrent" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/>
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<element name="TwoDirectorMember" id="meec_TwoDirectorMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/>
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<element name="TwoEmployeesMember" id="meec_TwoEmployeesMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/>
<element name="JanuaryTwoFourTwoThousandTwentyTwoMember" id="meec_JanuaryTwoFourTwoThousandTwentyTwoMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/>
<element name="IntrinsicValueMember" id="meec_IntrinsicValueMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/>
<element name="WarrantOneMember" id="meec_WarrantOneMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/>
</schema>

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