Method of and apparatus for producing methanol
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B01J-008/00
C07C-027/14
F28D-021/00
출원번호
US-0319093
(2005-12-27)
등록번호
US-8202916
(2012-06-19)
발명자
/ 주소
Pawlak, Nathan A.
Vedeneev, Vladimir I.
Tots, Alexander L.
출원인 / 주소
Gas Technologies LLC
대리인 / 주소
Brooks Kushman P.C.
인용정보
피인용 횟수 :
7인용 특허 :
99
초록▼
An apparatus and method of producing methanol includes reacting a heated hydrocarbon-containing gas and an oxygen-containing gas in a reactor; and adding a relatively cold hydrocarbon-containing gas, to be mixed directly with a mixture of the heated hydrocarbon-containing gas and the oxygen-containi
An apparatus and method of producing methanol includes reacting a heated hydrocarbon-containing gas and an oxygen-containing gas in a reactor; and adding a relatively cold hydrocarbon-containing gas, to be mixed directly with a mixture of the heated hydrocarbon-containing gas and the oxygen-containing gas, after formaldehyde is formed to inhibit decomposition of formaldehyde in the reactor, to provide a product stream comprising methanol and formaldehyde; and transferring heat from the product stream to the hydrocarbon-containing gas to heat the hydrocarbon containing gas.
대표청구항▼
1. A method comprising: heating a hydrocarbon-containing gas to a first temperature to form a heated hydrocarbon-containing as and supplying the heated hydrocarbon-containing gas into a reactor;supplying into the reactor at a first point an oxygen-containing gas to oxidize the heated hydrocarbon-con
1. A method comprising: heating a hydrocarbon-containing gas to a first temperature to form a heated hydrocarbon-containing as and supplying the heated hydrocarbon-containing gas into a reactor;supplying into the reactor at a first point an oxygen-containing gas to oxidize the heated hydrocarbon-containing gas to produce a reaction mixture comprising methanol and formaldehyde;thereafter inhibiting the decomposition of formaldehyde by supplying a hydrocarbon-containing gas at a second temperature into the reactor at a second point downstream of the first point to be mixed directly with the reaction mixture, the second temperature being less than the first temperature wherein formation of methanol and formaldehyde is substantially completed at the second point; andtransferring heat from a resulting product stream compromising methanol and formaldehyde to the hydrocarbon-containing gas to heat the hydrocarbon-containing gas. 2. A method as defined in claim 1, wherein the oxidation is partial oxidation without a catalyst, and wherein the mixture is substantially homogeneous. 3. A method as defined in claim 1, wherein the transfer of heat from the product stream to the hydrocarbon-containing gas at least partially heats the hydrocarbon-containing gas which is thereafter further heated to provide the heated hydrocarbon-containing gas. 4. A method as defined in claim 1, wherein heat is transferred from the product stream to the hydrocarbon-containing gas in a heat exchange portion of the reactor comprises a downstream portion of the reactor. 5. A method as in claim 4, wherein the heat exchange portion of the reactor comprises a downstream portion of the reactor. 6. A method as in claim 4, wherein the heat exchange portion of the reactor comprises a heat exchanger encompassing at least a portion of the reactor. 7. A method as defined in claim 1, wherein said supplying of the cold hydrocarbon containing gas includes adjusting the quantity of the cold hydrocarbon-containing gas so to regulate the extent of the decomposition of formaldehyde in the reactor. 8. A method as defined in claim 1, wherein the product stream comprises a relatively high volatility component and a relatively low volatility component and wherein the high and low volatility components are separated from one another. 9. A method as in claim 8, wherein the relatively high volatility component comprises at least a portion of the formaldehyde of the product stream. 10. A method as in claim 9, wherein the high volatility component comprises substantially all of the formaldehyde and the low volatility component comprises methanol, ethanol, and water and subsequent processing provides a relatively purified methanol stream. 11. A method as in claim 8, wherein the relatively low volatility component comprises at least a portion of the formaldehyde of the product stream. 12. A method as in claim 11, wherein the low volatility component comprises substantially all of the formaldehyde and subsequent processing separates formaldehyde from less volatile components and provides relatively purified formaldehyde; and optionally, subsequent processing provides relatively purified methanol. 13. A method as in claim 1, wherein the relatively cold hydrocarbon containing gas is colder than the heated hydrocarbon containing gas. 14. A method as defined in claim 1, wherein the temperature of the reaction mixture is reduced by at least 30° C. 15. A method as defined in claim 1, wherein the temperature of the reaction mixture is reduced by 70° C. to 90° C. 16. An apparatus comprising: a reactor;a first hydrocarbon-containing gas supply means for supplying into the reactor a hydrocarbon containing gas at a first point;means for supplying into the reactor an oxygen containing gas at a second point, so that in said reactor a heated hydrocarbon containing gas is oxidized to produce a reaction mixture comprising methanol and formaldehyde;a second hydrocarbon-containing gas supply means, at a third point downstream of the first point and the second point, wherein at the third point the formation of methanol and formaldehyde is substantially completed, for supplying into the reactor a relatively cold hydrocarbon containing gas to the directly mixed with the reaction mixture to inhibit the decomposition of formaldehyde and to produce a product stream comprising formaldehyde and methanol; andheat exchange means for transferring heat from the product stream to the hydrocarbon-containing gas supplied by the first supply means at the first point. 17. An apparatus as defined in claim 16 and further comprising a heater disposed between the heat exchange means and the reactor for further preheating the hydrocarbon containing gas prior to its supplying into the reactor. 18. An apparatus as defined in claim 16, wherein said heat exchange means comprises a heat exchange portion of the reactor, an external heat exchanger or both. 19. The apparatus of claim 18, wherein the heat exchange means comprises an external heat exchanger downstream of the reactor. 20. The apparatus of claim 18, wherein the heat exchange portion of the reactor comprises a downstream portion of the reactor. 21. The apparatus of claim 18, wherein the heat exchange portion of the reactor comprises a heat exchanger encompassing at least a portion of the reactor. 22. An apparatus as in claim 16, wherein control means adjusts the second supply means based on one or more operating parameters. 23. An apparatus as in claim 22, wherein the one or more parameters comprises temperature. 24. An apparatus as in claim 16 further comprising a condenser that condenses a relatively low volatility component of the product stream for separation from a relatively high volatility component of the product stream. 25. An apparatus as in claim 24 further comprising a formaldehyde rectifier downstream of the condenser. 26. An apparatus as in claim 24 further compromising a methanol rectifier downstream of the condenser. 27. A method comprising: heating a hydrocarbon-containing gas;injecting the heated hydrocarbon-containing gas and an oxygen-containing gas into a reaction zone of a reactor, wherein the reaction zone is upstream of a regulation zone of the reactor, to produce a reaction mixture comprising methanol and formaldehyde;injecting a relatively cold hydrocarbon-containing gas into the regulation zone to directly mix with the reaction mixture and inhibit the decomposition of formaldehyde by reducing the reaction temperature, and to produce a product stream comprising methanol and formaldehyde; andtransferring heat from the product stream to the hydrocarbon-containing gas. 28. A method as defined in claim 27, wherein the temperature of the reaction mixture is reduced by at least 30° C. 29. A method as defined in claim 27, wherein the temperature of the reaction mixture is reduced by 70° C. to 90° C.
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