Petroleum upgrading and desulfurizing process
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C10G-055/04
C10G-047/00
C10G-025/00
C10G-045/02
C10G-047/32
C10G-021/08
출원번호
US-0952042
(2013-07-26)
등록번호
US-9951283
(2018-04-24)
발명자
/ 주소
Choi, Ki-Hyouk
Aljishi, Mohammad F.
출원인 / 주소
SAUDI ARABIAN OIL COMPANY
대리인 / 주소
Bracewell LLP
인용정보
피인용 횟수 :
0인용 특허 :
83
초록▼
A petroleum feedstock upgrading method is provided. The method includes supplying a mixed stream that includes hydrocarbon feedstock and water to a hydrothermal reactor where the mixed stream is maintained at a temperature and pressure greater than the critical temperatures and pressure of water in
A petroleum feedstock upgrading method is provided. The method includes supplying a mixed stream that includes hydrocarbon feedstock and water to a hydrothermal reactor where the mixed stream is maintained at a temperature and pressure greater than the critical temperatures and pressure of water in the absence of catalyst for a residence time sufficient to convert the mixed stream into a modified stream having an increased concentration of lighter hydrocarbons and/or concentration of sulfur containing compounds. The modified stream is then supplied to an adsorptive reaction stage charged with a solid adsorbent operable to remove at least a portion of the sulfur present to produce a trimmed stream. The trimmed stream is then separated into a gas and a liquid streams, and the liquid stream is separated into a water stream and an upgraded hydrocarbon product stream.
대표청구항▼
1. A method for upgrading a petroleum feedstock without supplying an external hydrogen gas supply, the method comprising the steps of: supplying a petroleum feedstock to a mixer, where the step includes pumping the petroleum feedstock to a pressure greater than 22.06 MPa and heating the petroleum fe
1. A method for upgrading a petroleum feedstock without supplying an external hydrogen gas supply, the method comprising the steps of: supplying a petroleum feedstock to a mixer, where the step includes pumping the petroleum feedstock to a pressure greater than 22.06 MPa and heating the petroleum feedstock to a temperature of up to about 250° C. to produce a pressurized and heated petroleum feedstock,supplying a water feed to the mixer, where the step includes pumping the water feed to a pressure greater than 22.06 MPa and heating the water feed to a temperature of between about 250° C. and 650° C. to produce a pressurized and heated water feed;combining the heated and pressurized petroleum feedstock and the heated and pressurized water feed in the mixer to produce a pressurized and heated combined stream;supplying the pressurized and heated combined stream to a hydrothermal reactor, where the hydrothermal reactor is maintained at a temperature between about 350° C. and 550° C. and where the pressurized and heated combined stream is maintained in a reaction zone of the hydrothermal reactor for a hydrothermal residence time of between about 10 seconds and 20 minutes to produce a modified stream, where the modified stream comprises water, where the modified stream is a water/hydrocarbon emulsion;supplying the modified stream to an adsorptive reaction stage charged with a heterogeneous catalyst to produce a trimmed stream, where the adsorptive reaction stage is maintained at a temperature between 120° C. and 200° C., and where the heterogeneous catalyst can destabilize the water/hydrocarbon emulsion, where the heterogeneous catalyst is operable to transform at least one impurity from the modified stream, where the at least one impurity is selected from the group consisting of sulfur, nitrogen, and a metal;cooling and depressurizing the trimmed stream to produce a gas stream and a liquid stream; andseparating the liquid stream to produce a water stream and an upgraded petroleum product stream. 2. The method of claim 1 where the petroleum feedstock and the water feed are supplied to the hydrothermal reactor at a ratio of volumetric flow rates of petroleum feedstock to water in a range of from about 1:10 to about 10:1. 3. The method of claim 1 where the hydrocarbon feedstock is selected from whole range crude oil, topped crude oil, liquefied coal, a product stream from a petroleum refinery, a product stream from a steam cracker, and a liquid product recovered from oil sand, bitumen or asphaltene. 4. The method of claim 1 where the heterogeneous catalyst includes an active material having 1 to 4 elements that are selected from the group consisting of elements of Groups IVB, VB, VIIB, VIIB, VIIIB, IB, and IIB of the Periodic Table of Elements. 5. The method of claim 1 where the heterogeneous catalyst includes a promoting material having 1 to 4 elements that are selected from the group consisting of elements of Groups IA, IIA, IIIA and VA of the Periodic Table of Elements. 6. The method of claim 1 where the heterogeneous catalyst includes a modifying material having 1 to 4 elements that are selected from the group consisting of elements of Groups VIA and VIIA of the Periodic Table of Elements. 7. The method of claim 1 where the heterogeneous catalyst includes a support material having 1 to 4 compounds that are selected from the group consisting of aluminum oxide, silicon oxide, titanium oxide, magnesium oxide, yttrium oxide, lanthanum oxide, cerium oxide, zirconium oxide, and activated carbon. 8. The method of claim 1 where the heterogeneous catalyst is operable to adsorb hydrogen sulfide. 9. The method of claim 1 where the heterogeneous catalyst is operable to destabilize surface active species. 10. The method of claim 1 where the heterogeneous catalyst is a water-resistant catalyst. 11. The method of claim 10 where the water-resistant catalyst is hydrophobic. 12. The method of claim 1 where the adsorptive reaction stage is maintained adiabatically. 13. The method of claim 1 where the adsorptive reaction stage is operable to remove mercaptans, thiols, thioethers, and other organo-sulfur compounds that form in the hydrothermal reactor as a result of a combination between hydrogen sulfide and olefins or diolefins. 14. The method of claim 1 where the upgraded petroleum product stream produced has one or more properties of a higher API gravity, a higher middle distillate yield, a lower content of sulfur containing compounds, a lower content of nitrogen compounds, or a lower content of metal containing compound comparatively to the supplied petroleum feedstock.
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이 특허에 인용된 특허 (83)
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