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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0477307 (2009-06-03) |
등록번호 | US-8282810 (2012-10-09) |
발명자 / 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 | 피인용 횟수 : 8 인용 특허 : 575 |
A variety of methods and systems are disclosed herein, including, in one embodiment, a method comprising: providing a stream comprising halogenated alkanes; forming synthesis products comprising hydrocarbons and hydrogen bromide from synthesis reactants comprising at least a portion of the halogenat
A variety of methods and systems are disclosed herein, including, in one embodiment, a method comprising: providing a stream comprising halogenated alkanes; forming synthesis products comprising hydrocarbons and hydrogen bromide from synthesis reactants comprising at least a portion of the halogenated alkanes; and recovering at least a portion of the bromine, the recovering comprising electrolysis.
1. A method comprising: providing a stream comprising halogenated alkanes;forming synthesis products comprising hydrocarbons and hydrogen bromide from synthesis reactants comprising at least a portion of the halogenated alkanes;separating the synthesis products into at least a liquid product stream
1. A method comprising: providing a stream comprising halogenated alkanes;forming synthesis products comprising hydrocarbons and hydrogen bromide from synthesis reactants comprising at least a portion of the halogenated alkanes;separating the synthesis products into at least a liquid product stream comprising C5+ hydrocarbons and a vapor stream comprising hydrogen bromide and methane; andrecovering bromine from the hydrogen bromide in an electrolysis unit. 2. The method of claim 1 further comprising: forming the halogenated alkanes by reacting an alkane stream and a halogen stream. 3. The method of claim 2 wherein the alkane stream may be at a pressure in the range of about 1 atm to about 100 atm. 4. The method of claim 2 wherein the alkane stream comprise at least one alkane selected from the group consisting of: methane, ethane, propane, butane, pentane, natural gas, coalbed methane, regasified liquefied natural gas, gas derived from gas hydrates, gas derived from chlathrates, gas derived from anaerobic decomposition of organic matter, gas derived from anaerobic decomposition of biomass, or synthetically produced alkanes. 5. The method of claim 2 wherein the forming of the halogenated alkanes occurs in the presence of a catalyst. 6. The method of claim 1 wherein the forming synthesis products occurs at a temperature in the range of about 150° C. to about 500° C. and at a pressure in the range of about 1 atm to 100 atm. 7. The method of claim 1 wherein the electrolysis unit comprises an electrolysis cell, wherein the electrolysis cell comprises an anode side, a cathode side, and a ion-transporting membrane, wherein the anode side and the cathode side are each disposed on opposite sides of the ion-transporting membrane. 8. The method of claim 7 wherein the ion-transporting membrane comprises a cation-transporting membrane, wherein the cation-transporting membrane comprises at least one material selected from the group consisting of: a fluoromonomer, perfluoromonomer, a copolymer of two or more fluoro or perfluoromonomers at least one of which contains pendant sulfonic acid groups, a proton-conducting ceramic, or a derivative thereof. 9. The method of claim 1 wherein hydrogen is formed in the electrolysis unit. 10. The method of claim 1 wherein the forming synthesis products occurs in the presence of a catalyst. 11. The method of claim 10 wherein the catalyst comprises a synthetic crystalline alumino-silicate catalyst. 12. A method comprising: forming synthesis products comprising hydrocarbons and hydrogen bromide from synthesis reactants comprising brominated alkanes;separating the synthesis products into at least a liquid product stream comprising C5+ hydrocarbons and a vapor stream comprising hydrogen bromide and methane; andconverting at least a portion of the hydrogen bromide to at least molecular bromine using as phase electrolysis;providing a stream comprising hydrocarbons; andforming bromination products by reacting at least a portion of the molecular bromine with at least a portion of the hydrocarbons. 13. The method of claim 12 wherein the forming of the bromination products occurs at a temperature in the range of about 250° C. to about 600° C. and at a pressure in the range of about 1 atm to about 100 atm. 14. The method of claim 12 wherein the forming of the bromination products occurs in the presence of a catalyst. 15. The method of claim 14 wherein the catalyst comprises at least one catalytic material selected from the group consisting of platinum, palladium, unsupported oxy halides of the formula FeOxBry, unsupported oxy halides of the formula FeOxCly, TaOF3, NbOF3, ZrOF2, SbOF3. 16. The method of claim 12 wherein the electrolysis occurs in an electrolysis cell operated in an air-depolarized mode. 17. The method of claim 12 wherein hydrogen is formed in the gas phase electrolysis. 18. The method of claim 12 wherein the forming synthesis products occurs in the presence of a catalyst. 19. The method of claim 18 wherein the catalyst comprises a synthetic crystalline alumino-silicate catalyst. 20. A method comprising: reacting at least a gaseous feed stream comprising lower molecular weight hydrocarbons with bromine in a bromination reactor to form at least hydrogen bromide and brominated alkanes;reacting at least a portion of the brominated alkanes in the presence of synthetic crystalline alumino-silicate catalyst in a synthesis reactor to form at least product hydrocarbons comprising hydrocarbons having three or more carbons and additional hydrogen bromide;feeding at least a portion of the product hydrocarbons and the additional hydrogen bromide from the synthesis reactor to a product recovery unit;recovering a liquid product stream from the product recovery unit, the liquid product stream comprising hydrocarbons having five or more hydrocarbons;recovering a vapor stream from the product recovery unit, the vapor stream comprising hydrogen bromide; andconverting at least a portion of the hydrogen bromide from the vapor stream to at least molecular bromine using a gas phase electrolysis unit. 21. The method of claim 20 further comprising recycling at least methane from the product recovery unit to the bromination reactor. 22. The method of claim 20 wherein the lower molecular weight alkanes comprise methane. 23. The method of claim 20 wherein the lower molecular weight alkanes comprise at least one gaseous feed selected from the group consisting of natural gas, coalbed methane, regasified liquefied natural gas, gas derived from gas hydrates, gas derived from chlathrates, gas derived from anaerobic decomposition of organic matter, gas derived from anaerobic decomposition of biomass, synthetically produced natural gas, synthetically produced alkanes, and any combinations thereof. 24. The method of claim 20 wherein the brominated alkanes comprise monobrominated alkanes. 25. The method of claim 20 wherein a mole ratio of lower molecular weight alkanes to the bromine in the gaseous feed is in excess of 2.5:1. 26. The method of claim 20 wherein the synthetic crystalline alumino-silicate comprises a ZSM-5 zeolite catalyst. 27. The method of claim 20 wherein the gas phase electrolysis unit comprises an electrolysis cell operated in an air-depolarized mode. 28. The method of claim 27 further comprising recovering water from the phase electrolysis unit. 29. The method of claim 20 further comprising recovering hydrogen from the gas phase electrolysis unit. 30. The method of claim 20 wherein the liquid product stream comprises C5+ gasoline-range hydrocarbons.
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