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15 regenerationstream, suchthatthethirdheattransferiscom prisedofheatfromthe?fthheattransfer. 12. The method of claim 4 including generating a C02 13. The method ofclaim 1 Where the Zeolite sorbent isone of Zeolite 4A, Zeolite 5A, or Zeolite 13X. 16 US 8,128,735B1 depleted gas stream from the capture reactor, generating steamusinganIntegratedGasi?cationCombined CyclepoW eredbyatleastaportionoftheCOZ-depletedgasstream,and indirectly transferring heat from a portion of the generated steam to the regeneration reactor, such that the second heat transferiscomprisedofheatfromtheportionofthegenerated isheatedWithathirdheattransfer,andWheretheprocessgas steam. 14. The method of claim 1 Where the ?rst CO2 pressure exceeds70psigandthe?rsttemperatureexceeds100degrees andtransferringheatfromthefourthheattransferandthe?fth Celsius. 15.A methodofseparatingCO2 fromaprocessgasstream heat transfer to the regeneration stream, such that the third heattransferiscomprisedofheatfromthefourthheattransfer andthe?fthheattransfer. comprisedofCO2,H20 andothergaseousconstituentsinan adsorption/desorptioncycleusingaZeolitesorbent,Wherethe 18.Themethodofclaim16Wheretheprocessgasstreamis desorptioncycleisconductedunderconditionsofincreased temperatureandincreasedCO2pressuretoproducea?nal 20 CO2 streamathighpressure,comprising: a shifted syngas stream from a Water-gas-shift reactor, and an IntegratedGasi?cationCombinedCyclepoWeredbyatleast aportionoftheCOZ-depletedgasstreamproducesgenerated steam, and including indirectly transferring heat from a por tionofthegeneratedsteamtothecapturereactor,suchthatthe secondheattransferiscomprisedofheatfromtheportionof thegeneratedsteam. 19. A method of separating CO2 from a shifted syngas stream comprised of CO2, H20 and H2 in an adsorption/ desorptioncycleusingaZeolitesorbent,Wherethedesorption cycleisconductedunderconditionsofincreasedtemperature andincreasedCO2pressuretoproducea?nalCO2streamat highpressure,comprising: Generating the shifted syngas stream at a shifted syngas temperaturegreaterthan 120degreesCelsiusinaWGS reactor; Cooling the shifted syngas stream to a ?rst temperature, Wherethe?rsttemperatureislessthantheshiftedsyngas temperature and at least 120 degrees Celsius, by trans ferringheatfromtheshiftedsyngasstream,suchthatthe shiftedsyngasstreamhasa?rstCO2 pressureatthe?rst temperature; Contacting the shifted syngas stream With the Zeolite sor bentatthe?rsttemperatureandthe?rstCO2 pressurein a capture reactor, such that the Zeolite sorbent adsorbs someportionoftheCO2 andsomeportionoftheH20 from the shifted syngas stream, and transferring heat from the Zeolite sorbent With a ?rst heat transfer to maintain the Zeolite sorbent at the ?rst temperature, thereby producing a loaded Zeolite sorbent, and gener ating an H2 gas stream from the capture reactor, Where the H2 gas stream is comprised of the shifted syngas streamlessthesomeportionoftheCO2 andthesome portionoftheH20 adsorbedbytheZeolitesorbent; generating steam having a steam temperature greater than 275 degrees Celsius using an Integrated Gasi?cation CombinedCyclepoWeredbyatleastaportionoftheH2 gas stream; transferring the loaded Zeolite sorbent from the capture reactortoaregenerationreactor,Wheretheregeneration reactor contains a C02 atmosphere, Where the CO2 atmosphereiscomprisedofatleast90mol% CO2and Where the CO2 atmosphere has a second CO2 pressure greaterthanthe?rstCO2 pressure,andWherethesecond CO2 pressureisatleast225 psig; increasingandmaintainingthetemperatureoftheloaded Zeolite sorbent in the regeneration reactor at a second temperature,Wherethesecondtemperatureexceedsthe ?rsttemperatureandthesecondtemperatureisatleast generating an input gas stream comprised of the process gas stream, such that the input gas stream is comprised of CO2, H20 and other gaseous constituents, and such thattheinputgasstreamhasa?rstCO2 pressure; 25 Contacting the input gas stream With the Zeolite sorbent at a?rsttemperatureandthe?rstCO2 pressureinacapture reactor, such that the Zeolite sorbent adsorbs some por tionoftheCO2 andsomeportionoftheH20 fromthe inputgasstream,andtransferringheatfromtheZeolite30 sorbent With a ?rst heat transfer to maintain the Zeolite sorbent at the ?rst temperature, thereby producing a loaded Zeolite sorbent, and generating a COZ-depleted gas stream from the capture reactor; transferring the loaded Zeolite sorbent from the capture 35 reactortoaregenerationreactor,Wheretheregeneration reactor contains a C02 atmosphere, Where the CO2 atmosphereiscomprisedofatleast90mol% CO2and WheretheCO2 atmospherehasasecondCO2 pressure greaterthanthe?rstCO2 pressure; increasingandmaintainingthetemperatureoftheloaded Zeolite sorbent in the regeneration reactor at a second temperature by transferring heat to the loaded Zeolite sorbent With a second heat transfer, Where the second temperatureexceedsthe?rsttemperatureandthesecond 45 temperatureisatleast275degreesCelsius,therebypro ducingdesorbedCO2 andH20 fromtheloadedZeolite sorbent and producing an unloaded Zeolite sorbent; Generating an output gas stream from the regeneration reactor, Where the output gas stream is comprised of 50 someportionoftheCO2 atmosphereandsomeportion ofthedesorbedCO2 andH20, andcoolingtheoutputgas stream to a third temperature beloW the ?rst temperature andremovingsomeportionoftheH20 intheoutputgas stream; Splittingtheoutputgasstreamatthethirdtemperatureinto aregenerationgasstreamandthe?nalCO2 stream,and directingtheregenerationgasstreamtotheregeneration reactor,suchthattheCO2 atmosphereiscomprisedof CO2 fromtheregenerationstream;and 60 transferring the unloaded Zeolite sorbent from the regen eration reactor to the capture reactor and cooling the unloaded Zeolite sorbent during the transfer, such that the unloaded Zeolite sorbent serves as the Zeolite sorbent atthe?rsttemperatureandtheinitialpressure,thereby 65 separatingCO2 fromaprocessgasstreamcomprisedof CO2,H20 andothergaseousconstituentsinanadsorp tion/desorptioncycleusingaZeolitesorbent,Wherethe desorption cycle is conducted under conditions of increased temperature and increased CO2 pressure to producethe?nalCO2 streamathighpressure. 16. The method of claim 15 Where the ?rst temperature exceeds 120degreesCelsiusandthesecondtemperaturefur ther exceeds 330 degrees Celsius. 17. The method of claim 15 Where the regeneration stream streamhasatemperatureexceedingthe?rsttemperatureand includingcoolingtheprocessgasstreamtothe?rsttempera ture With a fourth heat transfer, and Where the unloaded Zeo litesorbentiscooledduringtransferWitha?fthheattransfer,PDF Image | PROCESS FOR CO2 CAPTURE USING ZEOLITES
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