IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0562789
(2000-05-02)
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발명자
/ 주소 |
- Chintawar, Prashant S.
- Thompson, Craig
- Hagan, Mark R.
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대리인 / 주소 |
Wallenstein and Wagner, Ltd.
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인용정보 |
피인용 횟수 :
35 인용 특허 :
24 |
초록
▼
A process for converting carbon monoxide and water in a reformate stream into carbon dioxide and hydrogen comprising: generating a reformate by reacting a hydrocarbon via partial oxidation, steam reforming, or both, including autothermal reforming; and promoting a water gas shift in the reformate in
A process for converting carbon monoxide and water in a reformate stream into carbon dioxide and hydrogen comprising: generating a reformate by reacting a hydrocarbon via partial oxidation, steam reforming, or both, including autothermal reforming; and promoting a water gas shift in the reformate in the presence of a platinum group metal selected from the group consisting of platinum, palladium, iridium, osmium, rhodium and mixtures thereof, supported on zirconium oxide. The platinum group metal advantageously may be supported directly on a monolithic substrate composed of zirconium oxide.
대표청구항
▼
A process for converting carbon monoxide and water in a reformate stream into carbon dioxide and hydrogen comprising: generating a reformate by reacting a hydrocarbon via partial oxidation, steam reforming, or both, including autothermal reforming; and promoting a water gas shift in the reformate in
A process for converting carbon monoxide and water in a reformate stream into carbon dioxide and hydrogen comprising: generating a reformate by reacting a hydrocarbon via partial oxidation, steam reforming, or both, including autothermal reforming; and promoting a water gas shift in the reformate in the presence of a platinum group metal selected from the group consisting of platinum, palladium, iridium, osmium, rhodium and mixtures thereof, supported on zirconium oxide. The platinum group metal advantageously may be supported directly on a monolithic substrate composed of zirconium oxide. anism comprises an adhesive part that adheres to first lid and the first and is melted as soon as the temperature reaches above a predetermined level; wherein the first lid detachment mechanism comprises: a heating element installed at least partially at the first lid in contact with the adhesive part; a flammable gas sensor installed outside of the first case that sends a current in response to an increase in the concentration in the flammable gas; and an electroconductive substance for connecting the heated element and the flammable gas sensor. 6. The apparatus for removing the flammable gas of claim 1, wherein the first lid attachment mechanism comprises a lid support means installed in connection with the first lid and supports the first lid from the inside of the first case; and wherein the first lid detachment mechanism comprises: a flammable gas sensor installed outside of the first case that sends a current in response to an increase in the concentration of the flammable gas; a vessel for housing a substance for generating a noncondensable gas in response to an increase in temperature, which is installed inside the first case; a heating element installed in contact with the vessel for housing the substance for generating the noncondensable gas; an electroconductive substance for connecting the heating element and the flammable gas sensor; and a pressure driving means for driving the first lid support means in response to an increase in the internal pressure of the vessel for housing the substance for generating the noncondensable gas, wherein the pressure drive means is driven by the generation of the noncondensable gas so that the first lid attachment mechanism is operated, thereby opening the first lid. 7. The apparatus for removing the flammable gas of claim 1, wherein the first lid attachment mechanism comprises a wire whose one end is connected to a side surface of the fist case and the other end is connected to the first lid, and which closes the first lid by a tension level sufficient to maintain the first lid in the closed state; and wherein the first lid detachment mechanism comprises a wire cutter installed halfway at the wire that cuts the wire in response to an increase in the concentration of the flammable gas. 8. The apparatus for removing the flammable gas of claim 1, wherein the first lid attachment mechanism comprises a wire whose one end is connected to the side surface of the first case and the other end is connected to the first lid, and which closes the first lid by a tension level sufficient to maintain the first lid in the closed state; and wherein the first lid detachment mechanism comprises: a wire cutter installed halfway at the wire that cuts the wire in response to an increase in the concentration of the flammable gas; an auxiliary wire installed in a branched state of the wire cutter; and a dashpot for supporting one end of the auxiliary wire. 9. The apparatus for removing the flammable gas of claim 1, wherein the first lid attachment mechanism comprises a wire whose one end is connected to a side surface of the first case and the other end is connected to the first lid, and which closes the first lid by a tension level under the first conditions; and wherein the first lid detachment mechanism comprises: a wire cutting means installed halfway at the wire that cuts the wire in response to an increase in the concentration of the flammable gas; and further wherein the wire cutting means comprises: a heating element which is installed at an expected cut part of the wire and is melted as soon as the temperature reaches reaches above a predetermined level; and a heater for increasing the temperature of the heating element in response to the increase in the concentration of the flammable gas. 10. The apparatus for removing the flammable gas of claim 1, wherein the first lid attachment mechanism comprises a wire installed on a side surface of the first case, whose on e end is connected to the side surface of the first case and the other end is connected to the first lid, and which closes the first lid by a tension level sufficient to maintain the first lid being closed under the first condition; and wherein the first lid detachment mechanism comprises: a wire cutting means installed halfway at the wire that cuts the wire in response to an increase in the concentration of the flammable gas; and wherein the wire cutting means comprises: a heating element which is installed at an expected cut part of the wire and is melted as soon as the temperature reaches above a predetermined level; and a heating means for increasing the temperature of the heating element in response to an increase in the concentration of the flammable gas, which comprises: a power source; an electroconductive circuit composed of an electroconductive substance for connecting the power source and the heating element; and a circuit switch, installed in the middle of the electroconductive circuit, is equipped with a vessel for housing a hydrogen occlusion alloy, and arranged to set to an ON state as a volume of the hydrogen occlusion alloy increases in response to an increase in the concentration of the hydrogen gas. 11. The apparatus for removing the flammable gas of claim 1, further comprising a second case that houses the catalyst with at least one opening, said second case is set outside of and contiguous to the first case and an atmosphere in said second case is set away from the atmosphere in the first case; and wherein the first lid detachment mechanism is arranged to set the first lid to an open state by operating the first lid attachment mechanism in response to an increase in the concentration of the flammable gas in an atmosphere in the second case. 12. The apparatus for removing the flammable gas of claim 1, further comprising: a second case that houses the catalyst with at least one opening and is contiguous to the first case; a shape-memory alloy being carried into the second case; and a connection means for connecting the first lid attachment mechanism and the first lid detachment mechanism; and wherein the first lid detachment mechanism is arranged to set to the first lid to an open state by operating the first lid attachment mechanism in response to an increase in the concentration of the atmosphere in the second case; and the connection means is operated by changing the shape of the shape-memory alloy in response to the temperature in the second case so that the first lid attachment mechanism is operated to set the first lid to be opened. 13. The apparatus for removing the flammable gas of claim 1, further comprising: a second case that houses the catalyst with at least one opening and is contiguous to the first case; a third case that houses the catalyst with at least one opening; at least one second lid mounted to the third case to cover the opening in the first condition and to uncover the opening in the second condition; wherein each second lid having a second lid attachment mechanism and a second lid detachment mechanism; a shape-memory alloy being carried into the first and second cases; a first connection means for connecting the first lid attachment mechanism and the first lid detachment mechanism; a second connection means for connecting the second lid attachment mechanism and the second lid detachment mechanism; and wherein the first lid detachment mechanism is arranged to set the first lid to an open state by operating the first lid attachment mechanism in response to an increase in the concentration of the atmosphere in the second case; and wherein the second lid detachment mechanism is arranged to set the second lid to an open state by operating the second lid attachment mechanism in response to an increase in the concentration of the atmosphere in the first case; and wherein the first and second connection means are operated first by changing the shape o f the shape-memory alloy in the second case in response to the temperature in the second case so that the first lid attachment mechanism is operated to set the first lid to be opened, and is operated second by changing the shape of the shape-memory alloy in the first case in response to the temperature in the first case so that the second lid attachment mechanism is operated to set the second lid to be opened. 14. The apparatus for removing the flammable gas of claim 1, further comprising: a second case that houses the catalyst with at least one opening and is contiguous to the first case; and wherein the first lid detachment mechanism is arranged to set the first lid to an open state by operating the first lid attachment mechanism in response to an increase in the concentration of the atmosphere in the second case, and further comprising; a vessel for housing a substance for generating a noncondensable gas in response to an increase in the temperature which is installed in the second case; and a pressure driving means which opens the first lid of the first case by operating the first lid attachment mechanism in response to an increase in the internal pressure of the vessel for housing the substance for generating the noncondensable gas. 15. The apparatus for removing the flammable gas of claim 1, further comprising: a second case that houses the catalyst with at least one opening and is contiguous to the first case; and wherein the first lid attachment mechanism comprises an adhesive part that adheres the first lid and the first case and is melted as soon as the temperature reaches a predetermined level; and wherein the lid detachment mechanism comprises: a heating element installed at least partially at the first lid in contact with the adhesive part; a flammable gas sensor installed in the second case and sends a current in response to an increase in the concentration of the flammable gas; and an electroconductive substance for connecting the heating element and the flammable gas sensor. 16. The apparatus for removing the flammable gas of claim 1, wherein the first lid attachment mechanism comprises an adhensive part that adheres the first lid and the first case and is melted as soon as the temperature reaches above a predetermined level; and wherein the first lid detachment mechanism comprises: a heating element installed at least partially at the first lid in contact with the adhesive part; a flammable gas sensor installed outside of the first case that sends a current in response to an increase in the concentration in the flammable gas; an electroconductive substance for connecting the heating element and the flammable gas sensor; a gas sensor housing vessel for housing the flammable gas sensor; and a vessel operation means for operating the gas sensor housing vessel to be moved in response to an increase in the concentration of the flammable gas surrounding the gas sensor housing vessel. 17. The apparatus for removing the flammable gas of claim 1, further comprising a heating element selected from the group consisting calcium oxide, sodium oxide, potassium oxide, magnesium oxide, rubidium oxide, strontium oxide, and hydrogen occlusion alloy, which is arranged in contact with the catalyst. 18. The apparatus for removing the flammable gas of claim 1, wherein the catalyst comprises: at least one substance selected from the group consisting of platinum, ruthenium, and palladium; and at least one substance selected from the group consisting of silver, cobalt, manganese, copper and their oxides. 19. The apparatus for removing the flammable gas of claim 1, wherein the lid detachment mechanism comprises a vessel for housing a substance for generating a noncondensable gas installed in the vicinity of an inner wall surface of the first case, with the substance for generating the noncondensable gas comprising at least one substance selected from the group consisting of calcium-containing hydroc
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