Scrubbing CO2 from methane-containing gases using an aqueous stream
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IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C07C-027/00
E21B-043/00
B01D-047/04
출원번호
US-0951551
(2001-09-14)
발명자
/ 주소
O'Rear, Dennis J.
Munson, Curtis
출원인 / 주소
Chevron U.S.A. Inc.
대리인 / 주소
Burns, Doane, Swecker & Mathis, L.L.P.
인용정보
피인용 횟수 :
21인용 특허 :
7
초록▼
A method for removing CO2from a gas stream, including methane and CO2. The method includes contacting a gas stream with an aqueous stream, so that at least a portion of the CO2in the gas stream is dissolved into the aqueous stream, thereby creating a CO2-depleted gas stream, having an enriched metha
A method for removing CO2from a gas stream, including methane and CO2. The method includes contacting a gas stream with an aqueous stream, so that at least a portion of the CO2in the gas stream is dissolved into the aqueous stream, thereby creating a CO2-depleted gas stream, having an enriched methane concentration, and a CO2-enriched aqueous stream. The CO2-enriched aqueous stream is separated from the gas stream. Finally, the CO2-enriched aqueous stream is disposed of in at least one of a marine environment, a terrestrial formation or combination thereof.
대표청구항▼
A method for removing CO2from a gas stream, including methane and CO2. The method includes contacting a gas stream with an aqueous stream, so that at least a portion of the CO2in the gas stream is dissolved into the aqueous stream, thereby creating a CO2-depleted gas stream, having an enriched metha
A method for removing CO2from a gas stream, including methane and CO2. The method includes contacting a gas stream with an aqueous stream, so that at least a portion of the CO2in the gas stream is dissolved into the aqueous stream, thereby creating a CO2-depleted gas stream, having an enriched methane concentration, and a CO2-enriched aqueous stream. The CO2-enriched aqueous stream is separated from the gas stream. Finally, the CO2-enriched aqueous stream is disposed of in at least one of a marine environment, a terrestrial formation or combination thereof. SUB>1-4alkyl, haloC1-4alkyl, C1-4alkoxy, haloC1-4alkoxy, cyano, nitro, C2-4alkenyloxy or trifluoromethylthio; (f) R5is halo, hydroxy, amino, C1-6alkylamino, (C1-6alkyl)2amino, C1-6alkanoylamino, C1-6alkanoyl(N--C1-6alkyl)amino, C1-6alkylsulphonylamino, C1-6alkylsulphonyl(N--C1-6alkyl)amino, thiol, C1-6alkylsulphanyl, C1-6alkylsulphinyl, C1-6alkylsulphonyl, sulphamoyl, N-(C1-6alkyl)aminosulphonyl, N-(C1-66alkyl)2aminosulphonyl, carboxy, carbamoyl, N-(C1-6alkyl)carbamoyl, N-(C1-6alkyl)2carbamoyl, C1-6alkoxycarbonyl, formyl, C1-6alkanoyl, C2-6alkenyl, C2-6alkynyl, C5-6alkyl, haloC5-6alkyl, C5-6alkoxy, haloC5-6alkoxy or C5-6alkenyloxy; (g) Y--Z is --NHC(O)--, --OCH2--, --SCH2--, --NHCH2-- or trans-vinylene; (h) Y--Z is --NHC(S)--; R6is selected from C1-6alkyl (optionally substituted with one or more R8), C3-6cycloalkyl optionally substituted with one or more R8,a heterocyclic group optionally substituted on a ring carbon by one or more R8and if said heterocyclic group contains an --NH-- moiety that nitrogen may be optionally substituted by a group selected from D (wherein D is as defined hereinbelow), phenyl optionally substituted by one or more R8,naphthyl optionally substituted by one or more R8; R7is a heterocyclic group optionally substituted on a ring carbon by one or more R8and if said heterocyclic group contains an --NH-- moiety that nitrogen may be optionally substituted by a group selected from D (wherein D is as defined hereinbelow), phenyl optionally substituted by one or more R8,naphthyl optionally substituted by one or more R8; R8is trifluoromethyl, C1-6alkyl, halo, hydroxy, trifluoromethoxy, cyano, C1-6alkoxy, formyl, C1-6alkanoyl, C1-6alkanoyloxy, amino, C1-6alkylamino, (C1-6alkyl)2amino, C1-6alkanoylamino, C1-6alkanoyl(N--C1-6alkyl)amino, nitro, carboxy, carbamoyl, C1-6alkoxycarbonyl, thiol, C1-6alkylsulphanyl, C1-6alkylsulphinyl, C1-6alkylsulphonyl, sulphamoyl, N-(C1-6alkyl)aminosulphonyl, N-(C1-6alkyl)2aminosulphonyl, carbamoylC1-6alkyl, N-(C1-6alkyl)carbamoylC1-6alkyl, N-(C1-6alkyl)2carbamoyl-C1-6alkyl, hydroxyC1-6alkyl, C1-6alkoxyC 16alkyl, phenylC1-6alkyl or phenylC1-6alkoxy; P is selected from C2-6alkyl-M-- substituted with one or more R9,C2-6alkenyl-M-- optionally substituted with one or more R9,C2-6alkynyl-M-- optionally substituted with one or more R9(with the proviso that in the three previous groups R9is not a substituent on the carbon atom attached to M), R10--CH2--M--, R11--M--, thiol, C1-6alkylsulphanyl, C1-6alkylsulphinyl, C1-6alkylsulphonyl, sulphamoyl, nitro, carboxy, C1-6alkoxycarbonyl, amino, C1-6alkylamino, (C1-6alkyl)2amino, carbamoyl, N-(C1-6alkyl)carbamoyl, N-(C1-6alkyl)2carbamoyl, C1-6alkanoylamino, C1-6alkanoyl(N--C1-6alkyl)amino, trifluoromethyl, trifluoromethoxy, formyl, C1-6alkanoyl, C5-6alkyl, C2-6alkenyl, C2-6alkynyl N-(C1-6alkyl)aminosulp honyl, hydroxymethyl, hydroxyacetyl, N-(C1-6alkyl)2aminosulphonyl, C1-6alkanoylaminosulphonyl, C1-6alkanoyl(N--C1-6alkyl)aminosulphonyl, C1-6alkylsulphonylaminocarbonyl, C1-6alkylsulphonyl(N--C1-6alkyl)aminocarbonyl, C5-6alkoxy, C5-6alkenyloxy, phenyl optionally substituted by one or more R8,naphthyl optionally substituted by one or more R8and a heterocyclic group optionally substituted on a ring carbon by one or more R8and if said heterocyclic group contains an --NH-- moiety that nitrogen may be optionally substituted by a group selected from D (wherein D is as defined hereinbelow); Q is selected from any of the values defined for P, C1-4alkyl, C1-4alkoxy, C2-4alkenyloxy, hydroxy, halo and cyano; V is selected from any of the values defined for Q, phenyl optionally substituted by one or more Q, naphthyl optionally substituted by one or more Q, a heterocyclic group optionally substituted on a ring carbon by one or more Q and if said heterocyclic group contains an --NH-- moiety that nitrogen may be optionally substituted by a group selected from D (wherein D is as defined hereinbelow) and C3-6cycloalkyl optionally substituted with one or more Q; T is selected from --O--, --C(O)--, --NH--, --N(N--C1-6alkyl)--, --C(O)NH--, --NHC(O)--, --C(O)N(N--C1-6alkyl)--, --N(N--C1-6alkyl)C(O)--, --SO2--, --C(S)--, --C(S)NH--, --NHC(S)--, --C(S)N(N--C1-6alkyl)-- and --N(N--C1-6alkyl)C(S)--; M is selected from --O--, --N(R12)--, --C(O)--, --N(R12)C(O)--, --C(O)N(R12)--, --S(Q)n--, --OC(O)--, --C(O)O--, --N(R12)C(O)O--, --OC(O)N(R12)--, --C(S)N(R12)--, --N(R12)C(S)--, --SO2N(R12)--, --N(R12)SO2--, --N(R12)C(O)N(R12)--, --N(R12)C(S)N(R12)--, --SO2NHC(O)--, --SO2N(R12)C(O)--, --C(O)NHSO2-- and --C(O)N(R12)SO2--, or M is a direct bond; D is selected from C1-6alkyl, C1-6alkanoyl, C1-6alkylsulphonyl, C1-6alkoxycarbonyl, carbamoyl, N-(C1-6alkyl)carbamoyl, N,N-(C1-6alkyl)2carbamoyl, benzoyl, (heterocyclic group)carbonyl, phenylsulphonyl, (heterocyclic group)sulphonyl, phenyl and a carbon linked heterocyclic group, and wherein any C1-6alkyl group may be optionally substituted by one or more R9,and wherein any phenyl or heterocyclic group may be optionally substituted on a ring carbon by one or more groups selected from R8and if a heterocyclic group contains an --NH-- moiety that nitrogen may be optionally substituted by a group selected from E; E is selected from C1-6alkyl, C1-6alkanoyl, C1-6alkylsulphonyl, C1-6alkoxycarbonyl, carbamoyl, N-(C1-6alkyl)carbamoyl, N,N-(C1-6alkyl)2carbamoyl, C1-6alkoxyC1-6alkanoyl, phenylC1-6alkyl, benzoyl, phenylC1-6alkanoyl, phenylC1-6alkoxycarbonyl and phenylsulphonyl; R9is selected from hydroxy, amino, C1-6alkylamino, (C1-6alkyl)2amino, carboxy, C1-6alkoxy, carbamoyl, N-(C1-6alkyl)carbamoyl, N-(C1-6alkyl)2carbamoyl, formyl, sulphamoyl, N--C1-6alkylaminosulphonyl, N-(C1-6alkyl)2aminosulphonyl, C1-6alkylsulphonylamino, C1-6alkanoylamino, a heterocyclic group optionally substituted on a ring carbon by one or more R8and if said heterocyclic group contains an --NH-- moiety that nitrogen may be optionally substituted by a group selected from D
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