Composition and process for the removal of sulfur from middle distillate fuels
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C10G-029/06
C10G-029/10
C10G-029/16
출원번호
US-0906712
(2010-10-18)
등록번호
US-8323480
(2012-12-04)
발명자
/ 주소
Choi, Ki-Hyouk
출원인 / 주소
Saudi Arabian Oil Company
대리인 / 주소
Bracewell & Giuliani LLP
인용정보
피인용 횟수 :
6인용 특허 :
78
초록▼
A composition and process for removing sulfur from middle distillate petroleum hydrocarbon fuels. The composition includes an alumina component and a carbon component. The composition is present in an amount effective to adsorb sulfur compounds from the fuel. The alumina component and the carbon com
A composition and process for removing sulfur from middle distillate petroleum hydrocarbon fuels. The composition includes an alumina component and a carbon component. The composition is present in an amount effective to adsorb sulfur compounds from the fuel. The alumina component and the carbon component preferably collectively comprise a composite material. The composition can further include a sulfur component, preferably a metal sulfide or sulfur oxide. The composition can also further include at least one compound having a Group VI or Group VIII metal from the periodic table.
대표청구항▼
1. A process for the removal of sulfur from a hydrocarbon fuel, the process comprising the steps of: supplying the hydrocarbon fuel to a hydrotreating unit, the hydrotreating unit comprising a catalyst bed and a hydrogen gas source, said catalyst bed comprising a desulfurization catalyst, wherein co
1. A process for the removal of sulfur from a hydrocarbon fuel, the process comprising the steps of: supplying the hydrocarbon fuel to a hydrotreating unit, the hydrotreating unit comprising a catalyst bed and a hydrogen gas source, said catalyst bed comprising a desulfurization catalyst, wherein contacting the hydrocarbon fuel with the desulfurization catalyst produces a partially desulfurized hydrocarbon fuel stream;removing gaseous products from the partially desulfurized hydrocarbon fuel stream to produce a gas-free partially desulfurized hydrocarbon fuel stream;then supplying the gas-free partially desulfurized hydrocarbon fuel stream after removing the gaseous products to an adsorption unit, said adsorption unit comprising an adsorbent composition for the removal of sulfur, the adsorbent composition comprising a composite alumina material comprising between about 5 and 50% by weight of carbon and sulfur, wherein the composite alumina material is prepared by heating the composite material to a temperature of between about 200° C. to 800° C. in an oxygen containing atmosphere, wherein the composite alumina material is partially calcined such that a portion of the carbon component is not burned out; andcontacting the adsorbent composition and the gas-free partially desulfurized hydrocarbon fuel stream to substantially remove sulfur therefrom to produce a desulfurized hydrocarbon fuel stream. 2. The process of claim 1, wherein the composite alumina material further comprises at least one Group VI or Group VIII metal. 3. The process of claim 1, wherein the composite alumina material has a composition of about 10% by weight carbon, about 5% by weight sulfur, and about 14% by weight molybdenum. 4. The process of claim 1, wherein the adsorption unit is operated at a temperature of between about 10° C. and 40° C. and a pressure of between about 10 and 50 bar. 5. The process of claim 1, wherein the adsorbent has a surface area of between about 100-250 m2/g. 6. The process of claim 1, further comprising the steps of supplying the desulfurized hydrocarbon fuel stream to a second hydrotreating unit, said second hydrotreating unit comprising a catalyst bed and a hydrogen gas source, said catalyst bed comprising a desulfurization catalyst, wherein contacting the hydrocarbon fuel with the desulfurization catalyst to remove at least a portion of any sulfur remaining in the desulfurized hydrocarbon fuel stream; andrecovering a purified desulfurized hydrocarbon fuel stream from the second hydrotreating unit. 7. The process of claim 1, wherein the composite material is operable to substantially reduce sulfur compounds present in the petroleum hydrocarbon and produce a petroleum hydrocarbon stream having a boiling point in the range from 50° C. to 650° C. 8. The process of claim 1, wherein the composite material is operable to substantially reduce sulfur compounds present in the petroleum hydrocarbon to produce a petroleum hydrocarbon stream having a boiling point in the range from 200° C. to 400° C. 9. The process of claim 1, wherein the surface area of the composite material is between about 100-250 m2/g measured by N2 adsorption. 10. A process for the removal of sulfur from a hydrocarbon fuel, the process comprising the steps of: supplying the hydrocarbon fuel to a hydrotreating unit, the hydrotreating unit comprising a catalyst bed and a hydrogen gas source, said catalyst bed comprising a desulfurization catalyst, wherein contacting the hydrocarbon fuel with the desulfurization catalyst produces a partially desulfurized hydrocarbon fuel stream;removing gaseous products from the partially desulfurized hydrocarbon fuel stream to produce a gas-free partially desulfurized hydrocarbon fuel stream;then supplying the gas-free partially desulfurized hydrocarbon fuel stream after removing the gaseous products to an adsorption unit, said adsorption unit comprising an adsorbent composition for the removal of sulfur, the adsorbent composition comprising a composite alumina material comprising between about 5 and 50% by weight of carbon and sulfur, wherein the composite alumina material is prepared by heating the composite material to a temperature of between about 200° C. to 800° C. in an oxygen containing atmosphere, wherein the composite alumina material has a composition of about 10% by weight carbon, about 5% by weight sulfur, and about 14% by weight molybdenum; andcontacting the adsorbent composition and the gas-free partially desulfurized hydrocarbon fuel stream to substantially remove sulfur therefrom to produce a desulfurized hydrocarbon fuel stream. 11. The process of claim 10, wherein the composite alumina material further comprises at least one Group VI or Group VIII metal. 12. The process of claim 10, wherein the adsorption unit is operated at a temperature of between about 10° C. and 40° C. and a pressure of between about 10 and 50 bar. 13. The process of claim 10, wherein the adsorbent has a surface area of between about 100-250 m2/g. 14. The process of claim 10, further comprising the steps of supplying the desulfurized hydrocarbon fuel stream to a second hydrotreating unit, said second hydrotreating unit comprising a catalyst bed and a hydrogen gas source, said catalyst bed comprising a desulfurization catalyst, wherein contacting the hydrocarbon fuel with the desulfurization catalyst to remove at least a portion of any sulfur remaining in the desulfurized hydrocarbon fuel stream; andrecovering a purified desulfurized hydrocarbon fuel stream from the second hydrotreating unit. 15. The process of claim 10, wherein the composite material is operable to substantially reduce sulfur compounds present in the petroleum hydrocarbon and produce a petroleum hydrocarbon stream having a boiling point in the range from 50° C. to 650° C. 16. The process of claim 10, wherein the composite material is operable to substantially reduce sulfur compounds present in the petroleum hydrocarbon to produce a petroleum hydrocarbon stream having a boiling point in the range from 200° C. to 400° C. 17. The process of claim 10, wherein the surface area of the composite material is between about 100-250 m2/g measured by N2 adsorption.
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