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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | UP-0217311 (2008-07-02) |
등록번호 | US-7847139 (2011-01-31) |
발명자 / 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 | 피인용 횟수 : 0 인용 특허 : 435 |
A method of synthesizing hydrocarbons from smaller hydrocarbons includes the steps of hydrocarbon halogenation, simultaneous oligomerization and hydrogen halide neutralization, and product recovery, with a metal-oxygen cataloreactant used to facilitate carbon-carbon coupling. Treatment with air or o
A method of synthesizing hydrocarbons from smaller hydrocarbons includes the steps of hydrocarbon halogenation, simultaneous oligomerization and hydrogen halide neutralization, and product recovery, with a metal-oxygen cataloreactant used to facilitate carbon-carbon coupling. Treatment with air or oxygen liberates halogen and regenerates the cataloreactant.
What is claimed is: 1. A method of making a hydrocarbon having a carbon number Cn, where n≧2, comprising: forming a halogenated hydrocarbon by allowing a reactant hydrocarbon having a carbon number Cm, where m<n, to react with a halogenating agent; forming a hydrogen halide and a produc
What is claimed is: 1. A method of making a hydrocarbon having a carbon number Cn, where n≧2, comprising: forming a halogenated hydrocarbon by allowing a reactant hydrocarbon having a carbon number Cm, where m<n, to react with a halogenating agent; forming a hydrogen halide and a product hydrocarbon having a carbon number Cn, where n≧2, by allowing the halogenated hydrocarbon to contact a metal-oxygen cataloreactant; trapping halogen from the hydrogen halide with the metal-oxygen cataloreactant; recovering the product hydrocarbon; and regenerating the metal-oxygen cataloreactant to recover the halogen. 2. A method as recited in claim 1, wherein the reactant hydrocarbon comprises methane. 3. A method as recited in claim 1, wherein the metal-oxygen cataloreactant is selected from the group consisting of zeolites, doped zeolites, metal oxides, mixed metal oxides, metal oxide-impregnated zeolites, and mixtures thereof. 4. A method as recited in claim 1, wherein the metal-oxygen cataloreactant is regenerated with air or oxygen. 5. A method as recited in claim 1, wherein formation of the product hydrocarbon is carried out in a zone reactor. 6. A method as recited in claim 1, wherein the halogenating agent comprises molecular halogen. 7. A method as recited in claim 1, wherein the halogenating agent comprises bromine. 8. A method as recited in claim 1, wherein the halogenating agent comprises an alkyl halide. 9. A method as recited in claim 1, wherein the halogenating agent comprises a solid halide. 10. A method as recited in claim 1, wherein the halogenating agent comprises a hydrogen halide. 11. A method of making a hydrocarbon having a carbon number Cn, where n≧2, comprising: forming hydrogen bromide and a brominated hydrocarbon by allowing a reactant hydrocarbon having a carbon number Cm, where m<n, to react with a brominating agent; forming a product hydrocarbon having a carbon number Cn, where n≧2, by allowing the brominated hydrocarbon to contact a metal-oxygen cataloreactant; trapping bromine from the hydrogen bromide with the metal-oxygen cataloreactant; recovering the product hydrocarbon; and regenerating the metal-oxygen cataloreactant to recover the bromine. 12. A method as recited in claim 11, wherein the reactant hydrocarbon comprises methane. 13. A method as recited in claim 11, wherein the metal-oxygen cataloreactant is selected from the group consisting of zeolites, doped zeolites, metal oxides, mixed metal oxides, metal oxide-impregnated zeolites, and mixtures thereof. 14. A method as recited in claim 11, wherein the metal-oxygen cataloreactant is regenerated with air or oxygen. 15. A method as recited in claim 11, wherein formation of the product hydrocarbon is carried out in a zone reactor. 16. A method as recited in claim 11, wherein the brominating agent is selected from the group consisting of bromine, alkyl bromides, solid bromides, and hydrogen bromide. 17. A method of making a hydrocarbon having a carbon number Cn, where n≧2, comprising: (i) forming a hydrogen halide and an alkyl halide by allowing a reactant alkane having a carbon number Cm, where m<n, to react with molecular halogen; (ii) forming a product hydrocarbon having a carbon number Cn, where n≧2, by allowing the alkyl halide to contact a metal-oxygen cataloreactant; (iii) trapping halogen from the hydrogen halide with the metal-oxygen cataloreactant; (iv) recovering the product hydrocarbon; and (v) regenerating the metal-oxygen cataloreactant with air or oxygen to recover the halogen. 18. A method as recited in claim 17, wherein the reactant alkane comprises methane. 19. A method as recited in claim 17, wherein the molecular halogen comprises bromine. 20. A method as recited in claim 17, wherein step (i) occurs at an alkane-to-halogen ratio of from 1:10 to 100:1 by volume. 21. A method as recited in claim 19, wherein step (i) occurs at a temperature of from 20 to 900° C. and a pressure of from 0.1 to 200 atm. 22. A method as recited in claim 17, wherein the metal-oxygen cataloreactant is selected from the group consisting of zeolites, doped zeolites, metal oxides, mixed metal oxides, metal oxide-impregnated zeolites, and mixtures thereof. 23. A method as recited in claim 17, wherein steps (i)-(v) take place in a zone reactor. 24. A method of making a hydrocarbon having a carbon number Cn, where n≧2, comprising: (i) forming hydrogen bromide and an alkyl bromide by allowing methane to react with molecular bromine, at a temperature of from 20 to 900° C., a pressure of from 0.1 to 200 atm, and a methane-to-bromine ratio of from 1:10 to 100:1 by volume; (ii) forming a product hydrocarbon having a carbon number Cn, where n≧2, by allowing the alkyl bromide to contact a doped zeolite; (iii) trapping bromine from the hydrogen bromide with the doped zeolite; (iv) recovering the product hydrocarbon; and (v) regenerating the doped zeolite with air or oxygen to recover the bromine; wherein steps (i)-(v) occur in a zone reactor. 25. A method of making a product hydrocarbon comprising: reacting a halogenating agent with a reactant hydrocarbon having a carbon number Cm, where m<n, to form a halogenated hydrocarbon; contacting the halogenated hydrocarbon with a metal-oxygen cataloreactant to catalyze formation of a product hydrocarbon having a carbon number Cn, where n≧2, while halogenating the cataloreactant to form a halogenated cataloreactant; recovering the product hydrocarbon; reacting the halogenated cataloreactant with oxygen or air to regenerate the cataloreactant and form a molecular halogen; and recycling the molecular halogen as the halogenating agent to react with the reactant hydrocarbon.
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