Systems and processes for providing hydrogen to fuel cells
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C01B-003/26
C01B-003/00
B01J-008/04
B01J-035/02
B01J-035/00
H01M-008/10
H01M-008/04
출원번호
US-0039552
(2001-10-26)
우선권정보
CA-2324699(2000-10-27); CA-2324702(2000-10-27)
발명자
/ 주소
Keefer,Bowie G.
Sawada,James A.
Johannes,Erik P.
Roy,Surajit
Brown,Michael J.
출원인 / 주소
QuestAir Technologies Inc.
대리인 / 주소
Klarquist Sparkman, LLP
인용정보
피인용 횟수 :
57인용 특허 :
76
초록▼
A process and system for providing a hydrogen-containing gas stream to a fuel cell anode that includes providing a hydrogen-containing gas stream that includes carbon monoxide, introducing the hydrogen-containing gas stream into a pressure swing adsorption module that includes at least one carbon mo
A process and system for providing a hydrogen-containing gas stream to a fuel cell anode that includes providing a hydrogen-containing gas stream that includes carbon monoxide, introducing the hydrogen-containing gas stream into a pressure swing adsorption module that includes at least one carbon monoxide-selective adsorbent to produce a purified hydrogen-containing gas stream, and introducing the purified hydrogen-containing gas stream to the fuel cell anode. The pressure swing adsorption module can also include a second adsorbent and/or catalyst. Also disclosed is a fuel cell system coupled to an internal combustion engine and a fuel cell system that utilizes fuel cell waste heat for vaporizing a hydrocarbon/water mixture.
대표청구항▼
We claim: 1. A process for providing a hydrogen-containing gas stream to at least one fuel cell anode, comprising: introducing a hydrogen-containing feed gas stream that includes at least one contaminant into a rotary adsorption module having at least a first adsorbent and at least one second mater
We claim: 1. A process for providing a hydrogen-containing gas stream to at least one fuel cell anode, comprising: introducing a hydrogen-containing feed gas stream that includes at least one contaminant into a rotary adsorption module having at least a first adsorbent and at least one second material selected from a second adsorbent, a steam reforming catalyst, or a water gas shift reaction catalyst, wherein the first adsorbent and the second adsorbent are chemically distinct and at least one of the first adsorbent or the second adsorbent preferentially adsorbs the contaminant in the hydrogen-containing feed gas stream to produce a purified hydrogen-containing gas stream; and introducing the purified hydrogen-containing gas stream to the fuel cell anode. 2. The process according to claim 1, wherein the contaminant is carbon monoxide and at least one of the first adsorbent or second adsorbent comprises a carbon monoxide-selective adsorbent. 3. The process according to claim 2, wherein the carbon monoxide-selective adsorbent is Na-LSX, Ca-LSX, Li-LSX, Li-exchanged chabazite, Ca-exchanged chabazite, Sr-exchanged chabazite, a Cu(I)-containing material, a Ag(I)-containing material, or a mixture thereof. 4. The process according to claim 1, further comprising introducing the hydrogen-containing feed gas stream into the adsorption module at a temperature of about 80째 C. to about 200째 C. 5. The process according to claim 1, further comprising at least one additional adsorbent. 6. The process according to claim 1, wherein the adsorption module comprises a rotary pressure swing adsorption module. 7. The process according to claim 1, wherein the fuel cell comprises a polymer electrolyte membrane fuel cell. 8. The process according to claim 1, further comprising providing a reforming or partial oxidation system that produces the hydrogen-containing feed gas stream. 9. The process according to claim 2, wherein the carbon monoxide-selective adsorbent is a Cu(I)-containing material, a Ag(I)-containing material, or a mixture thereof. 10. The process according to claim 1, wherein the first adsorbent preferentially adsorbs carbon dioxide compared to water vapor. 11. The process according to claim 1, wherein the first adsorbent comprises an alkali-promoted material and at least one of the steam reforming catalyst and the water gas shift reaction catalyst is present. 12. The process according to claim 11, wherein the steam reforming catalyst is a methanol steam reforming catalyst or a methane steam reforming catalyst. 13. A process for providing a hydrogen-containing gas stream to at least one fuel cell anode, comprising: introducing a hydrogen-containing feed gas stream that includes at least a first contaminant and at least a second contaminant into a pressure swing adsorption module that includes a first separation zone and a second separation zone; preferentially separating at least a portion of the first contaminant from the hydrogen-containing feed gas stream in the first separation zone; preferentially separating at least a portion of the second contaminant from the hydrogen-containing feed gas stream in the second separation zone; and introducing the resulting purified hydrogen-containing gas stream to the fuel cell anode, wherein the first or second contaminant comprises carbon monoxide and the process further comprises reacting the carbon monoxide with water vapor in the first or second separation zones. 14. The process according to claim 13, wherein the preferential separation of the first contaminant occurs prior to the preferential separation of the second contaminant. 15. The process according to claim 13, wherein the first separation zone comprises a first adsorbent bed and the second separation zone comprises a second adsorption bed. 16. The process according to claim 13, wherein the hydrogen-containing feed gas stream is produced by a reforming or partial oxidation system. 17. The process according to claim 13, wherein the fuel cell comprises a polymer electrolyte membrane fuel cell. 18. The process according to claim 13, further comprising preferentially separating at least one additional contaminant in at least one additional separation zone. 19. A process for separating carbon monoxide from a hydrogen-containing gas stream that is provided to at least one fuel cell anode, comprising: introducing a hydrogen-containing feed gas stream that includes carbon monoxide into at least one rotary pressure swing adsorption module, wherein the rotary pressure swing adsorption module includes at least one adsorbent selected from Na-LSX, Ca-LSX, Li-LSX, Li-exchanged chabazite, Ca-exchanged chabazite, Sr-exchanged chabazite, a Cu(I)-containing material, a Ag(I)-containing material, or a mixture thereof; separating at least a portion of the carbon monoxide from the hydrogen-containing feed gas stream; and introducing the resulting purified hydrogen-containing gas stream into the fuel cell anode. 20. The process according to claim 19, wherein the adsorbent comprises a Cu(I)-containing material, a Ag(I)-containing material, or a mixture thereof. 21. A process for providing a hydrogen-containing gas stream to at least one fuel cell anode, comprising: introducing a hydrogen-containing gas stream that includes carbon monoxide into a rotary pressure swing adsorption module that includes at least one carbon monoxide-selective adsorbent to produce a purified hydrogen-containing gas stream; and introducing the purified hydrogen-containing gas stream to the fuel cell anode. 22. A process according to claim 21, wherein the carbon monoxide-selective adsorbent comprises a Cu(I)-containing material, a Ag(I)-containing material, or a mixture thereof. 23. An electrical current generating system comprising: a hydrogen-containing gas source; at least one rotary adsorption module that can at least partially purify the hydrogen-containing gas, wherein the adsorption module includes at least a first adsorbent and at least one second material selected from a second adsorbent, a steam reforming catalyst, or a water gas shift reaction catalyst, the first adsorbent and the second adsorbent being chemically distinct; and at least one fuel cell defining an anode inlet that can receive the purified hydrogen-containing gas stream from the adsorption module. 24. The system according to claim 23, wherein the hydrogen-containing gas source comprises a reformer or partial oxidation reactor. 25. The system according to claim 23, wherein the adsorption module comprises a rotary pressure swing adsorption module. 26. The system according to claim 23, wherein the first adsorbent is disposed in a first zone and the second material is disposed in a second zone. 27. The system according to claim 26, wherein the first zone and the second zone are disposed adjacently along a hydrogen-containing gas flow path defined in the adsorption module. 28. The system according to claim 23, further comprising an anode recirculation conduit fluidly communicating between a fuel cell anode outlet and an inlet defined in the adsorption module. 29. The system according to claim 23, wherein at least one of the first adsorbent or second adsorbent comprises a carbon monoxide-selective adsorbent. 30. The system according to claim 29, wherein the carbon monoxide-selective adsorbent is Na-LSX, Ca-LSX, Li-LSX, Li-exchanged chabazite, Ca-exchanged chabazite, Sr-exchanged chabazite, a Cu(I)-containing material, a Ag(I)-containing material, or a mixture thereof. 31. The system according to claim 23, wherein the steam reforming catalyst or the water gas shift reaction catalyst is a Cu--ZnO catalyst, a transition metal carbonyl complex catalyst, or a catalyst comprising a transition group metal inserted into a zeolite cage. 32. The system according to claim 26, further comprising at least one additional zone of at least one additional adsorbent. 33. The system according to claim 23, wherein the first adsorbent preferentially adsorbs carbon dioxide compared to water vapor and at least one of the steam reforming catalyst or the water gas shift reaction catalyst is present. 34. The system according to claim 33, wherein the first adsorbent comprises an alkali-promoted material. 35. The system according to claim 23, wherein the carbon monoxide-selective adsorbent is a Cu(I)-containing material, a Ag(I)-containing material, or a mixture thereof. 36. The system according to claim 23, wherein at least one of the first adsorbent or second adsorbent comprises a zeolite, an activated carbon, or a Cu(I)-containing material. 37. The system according to claim 24, wherein the reformer or partial oxidation reactor comprises a first burner and a second burner. 38. The system according to claim 37, wherein the first burner receives an exhaust gas from the adsorption module and the second burner receives a hydrocarbon fuel. 39. An electrical current generating system comprising: a hydrogen-containing gas source; at least one rotary pressure swing adsorption module fluidly coupled to the hydrogen-containing gas source, the rotary pressure swing adsorption module including at least one carbon monoxide-selective adsorbent; and at least one fuel cell anode fluidly coupled to the pressure swing adsorption module. 40. The system according to claim 39, wherein the carbon monoxide-selective adsorbent is a Cu(I)-containing material, a Ag(I)-containing material, or a mixture thereof. 41. A system for supplying hydrogen gas to a fuel cell anode, comprising: a hydrogen gas generating system that includes an outlet for discharging a hydrogen-containing gas that includes at least a first contaminant and a second contaminant; a rotary pressure swing adsorption module that includes a first contaminant separation zone that fluidly communicates with the outlet of the hydrogen gas generating system, and at least one second contaminant separation zone that fluidly communicates with the first contaminant separation zone and includes an outlet for discharging a purified hydrogen gas, wherein the first contaminant separation zone and the second contaminant separation zone are disposed within the rotary pressure swing adsorption module and the first contaminant separation zone comprises a first adsorbent and the second contaminant separation zone comprises a second adsorbent; and at least one fuel cell anode that fluidly communicates with the outlet for the second contaminant separation zone. 42. The system according to claim 41, wherein the hydrogen gas generating system comprises a reformer or partial oxidation reactor and at least one of the first contaminant or second contaminant comprises a carbon oxide. 43. A system for supplying hydrogen gas to a fuel cell anode, comprising: a hydrogen-containing gas source; at least one rotary pressure swing adsorption module that can at least partially purify the hydrogen-containing gas, wherein the rotary pressure swing adsorption module includes at least one adsorbent selected from Na-LSX, Ca-LSX, Li-LSX, Li-exchanged chabazite, Ca-exchanged chabazite, Sr-exchanged chabazite, a Cu(I)-containing material, a Ag(I)-containing material, or a mixture thereof; and at least one fuel cell having an anode inlet that can receive the purified hydrogen-containing gas stream from the rotary pressure swing adsorption module. 44. The system according to claim 43, wherein the adsorbent is a material that includes a Cu(I)-containing material, a Ag(I)-containing material, or a mixture thereof. 45. An electrical current generating system comprising: at least one first pressure swing adsorption module having an outlet for discharging an oxygen-enriched gas stream; an autothermal reforming or partial oxidation reactor that can combust fuel and the oxygen-enriched gas stream to produce a hydrogen-containing gas; at least one second pressure swing adsorption module that can at least partially purify the hydrogen-containing gas; and at least one fuel cell having an anode inlet that can receive the purified hydrogen-containing gas from the second pressure swing adsorption module. 46. A process for providing a hydrogen-containing gas stream and an oxygen-enriched gas stream to a fuel cell, comprising: providing at least one first pressure swing adsorption module that produces an oxygen-enriched gas stream, the first pressure swing adsorption module including at least a first compressor or first vacuum pump; providing at least one second pressure swing adsorption module that produces a purified hydrogen gas stream and a separation exhaust gas stream, the second pressure swing adsorption module including at least a second compressor or second vacuum pump; introducing the oxygen-enriched gas stream and the purified hydrogen gas stream into a fuel cell; and introducing the separation exhaust gas stream as a fuel into a combustion engine for driving at least the first compressor, first vacuum pump, second compressor, second vacuum pump, or an electric generator. 47. The process according to claim 46, further comprising mixing a portion of the purified hydrogen gas stream with the separation exhaust gas stream as a fuel for the combustion engine. 48. The process according to claim 46, wherein the fuel cell produces a cathode exhaust gas stream that includes water and the process further comprises cooling the combustion engine with the water from the cathode exhaust gas stream. 49. The process according to claim 48, further comprising vaporizing the water from the combustion engine and introducing the resulting water vapor into a reformer that produces the hydrogen-containing gas feed stream. 50. The process according to claim 46, wherein the combustion engine produces an engine exhaust gas stream and the process further comprises heating a hydrogen gas generating system with the engine exhaust gas stream. 51. The process according to claim 46, further comprising: mixing liquid water and a hydrocarbon fuel stream resulting in a coolant mixture; introducing the coolant mixture into a coolant jacket juxtaposed with the combustion engine; vaporizing the coolant mixture to form a steam/fuel vapor mixture; subjecting the steam/fuel vapor mixture to reaction conditions sufficient for generating a hydrogen-containing gas stream; and introducing the hydrogen-containing gas stream into the second pressure swing adsorption module. 52. A process for providing a hydrogen-containing gas stream to a fuel cell, comprising; mixing liquid water and a hydrocarbon fuel stream resulting in a coolant mixture; introducing a coolant mixture into a coolant passage defined in a fuel cell wherein the fuel cell also defines an anode inlet for receiving a hydrogen-containing gas stream; vaporizing the coolant mixture to form a steam/fuel vapor mixture; subjecting the steam/fuel vapor mixture to reaction conditions sufficient for generating a hydrogen-containing gas stream; purifying the hydrogen-containing gas stream via pressure swing adsorption; and then introducing the hydrogen-containing gas stream into the fuel cell anode inlet. 53. The process according to claim 52, wherein the hydrocarbon fuel stream comprises methanol, ethanol, or a mixture thereof. 54. The process according to claim 52, wherein the vaporizing of the coolant mixture comprises flash evaporating of the coolant mixture. 55. The process according to claim 52, wherein the steam/fuel vapor mixture is subjected to reforming or partial oxidation to generate the hydrogen-containing gas stream. 56. The process according to claim 52, wherein the fuel cell further defines a cathode outlet for discharging a cathode exhaust gas stream that includes cathode water vapor, the process further comprising condensing at least a portion of the cathode water vapor, separating the resulting liquid water stream from the cathode exhaust gas stream, and mixing the liquid water stream with the hydrocarbon fuel stream. 57. An electrical current generating system, comprising: at least one rotary pressure swing adsorption module that includes a first outlet for discharging a purified hydrogen gas and a second outlet for discharging a separation exhaust gas; at least one fuel cell defining an anode inlet that fluidly communicates with the first outlet of the pressure swing adsorption module; and a combustion engine defining a fuel inlet that fluidly communicates with the second outlet of the pressure swing adsorption module. 58. The system according to claim 57, further comprising at least one first pressure swing adsorption module that includes an outlet for discharging an oxygen-enriched gas stream and at least one compressor or pump, wherein a shaft coupled to the combustion engine drives at least the compressor or pump. 59. The system according to claim 57, wherein the fuel cell further defines a cathode outlet for discharging a cathode exhaust gas stream that includes water, the combustion engine further includes a cooling jacket, and the system further comprises a conduit fluidly communicating between the fuel cell cathode outlet and the combustion engine cooling jacket. 60. The system according to claim 57, further comprising a hydrogen gas generating system that fluidly communicates with the hydrogen gas separation module, wherein the hydrogen gas generating system comprises a reformer or partial oxidation reactor and the combustion engine further includes a cooling jacket that defines an outlet for a water stream that fluidly communicates with the reformer or partial oxidation reactor. 61. The system according to claim 57, wherein the fuel cell comprises a polymer electrolyte membrane fuel cell. 62. An electrical current generating system, comprising: a fuel cell defining an anode inlet for receiving a hydrogen-containing gas stream, and a coolant passage having a coolant inlet and a coolant outlet; a water source fluidly communicating with the coolant inlet; a hydrocarbon fuel source fluidly communicating with the coolant inlet; a hydrogen gas generating module that includes an outlet for discharging a hydrogen-containing gas stream and a fuel inlet that fluidly communicates with the coolant outlet; and a first conduit fluidly communicating between the hydrogen gas generating module outlet and the fuel cell anode inlet, and with a first pressure swing adsorption module for purifying the hydrogen-containing gas stream that is positioned between the hydrogen gas generating module outlet and the fuel cell anode inlet. 63. The system according to claim 62, wherein the hydrocarbon fuel comprises methanol, ethanol, or a mixture thereof. 64. The system according to claim 62, wherein the first pressure swing adsorption module comprises a rotary pressure swing adsorption module. 65. The system according to claim 62, further comprising a second pressure swing adsorption module that includes an outlet for discharging an oxygen-enriched stream, and a third conduit fluidly communicating between the second pressure swing adsorption module outlet and a fuel cell cathode inlet. 66. The system according to claim 65, wherein the second pressure swing adsorption module comprises a rotary pressure swing adsorption module. 67. The system according to claim 62, wherein the fuel cell further defines a cathode outlet for discharging a cathode exhaust gas stream, and the system further comprises a second conduit fluidly communicating between the fuel cell cathode outlet and the coolant inlet. 68. The process according to claim 2, wherein the carbon monoxide-selective adsorbent comprises carbon fiber paper or carbon cloth. 69. The process according to claim 21, wherein the carbon monoxide-selective adsorbent comprises carbon fiber paper or carbon cloth. 70. The system according to claim 29, wherein the carbon monoxide-selective adsorbent comprises carbon fiber paper or carbon cloth. 71. The system according to claim 39, wherein the carbon monoxide-selective adsorbent comprises carbon fiber paper or carbon cloth. 72. The process according to claim 1, wherein at least one of the first adsorbent or second adsorbent comprises carbon fiber paper or carbon cloth. 73. The process according to claim 72, wherein the carbon fiber paper or carbon cloth adsorbent is self-supporting. 74. The system according to claim 23, wherein at least one of the first adsorbent or second adsorbent comprises carbon fiber paper or carbon cloth. 75. The system according to claim 74, wherein the carbon fiber paper or carbon cloth adsorbent is self-supporting. 76. The system according to claim 71, wherein the carbon fiber paper or carbon cloth adsorbent is self-supporting. 77. A system for supplying hydrogen gas to a fuel cell anode, comprising: a hydrogen gas generating system that can produce a hydrogen-containing gas that includes at least a first contaminant and a second contaminant; a first contaminant separation zone configured to receive the hydrogen-containing gas and produce a partially purified hydrogen-containing gas; at least one second contaminant separation zone configured to receive the partially purified hydrogen-containing gas and produce a substantially purified hydrogen-containing gas; and at least one fuel anode configured to receive the substantially purified hydrogen-containing gas, wherein at least one of the first contaminant separation zone or the second contaminant separation zone is disposed within a rotary pressure swing adsorption module. 78. An electrical current generating system comprising: a hydrogen-containing gas source; at least one adsorption module that can at least partially purify the hydrogen-containing gas, wherein the adsorption module includes at least a first adsorbent and at least one second material selected from a second adsorbent, a steam reforming catalyst, or a water gas shift reaction catalyst, the first adsorbent and the second adsorbent being chemically distinct; and at least one fuel cell defining an anode inlet that can receive the purified hydrogen-containing gas stream from the adsorption module, wherein at least the first adsorbent or the second adsorbent is a material that includes a Cu(I)-containing material, a Ag(I)-containing material, or a mixture thereof.
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이 특허에 인용된 특허 (76)
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