Method of removing carbon dioxide emissions from in-situ recovery of bitumen and heavy oil
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B01D-053/48
C01B-003/32
C01C-001/00
C07C-001/02
C07C-027/00
C10J-003/46
출원번호
US-0255503
(2008-10-21)
등록번호
US-8167960
(2012-05-01)
발명자
/ 주소
Gil, Henry
출원인 / 주소
Osum Oil Sands Corp.
대리인 / 주소
Sheridan Ross P.C.
인용정보
피인용 횟수 :
55인용 특허 :
143
초록▼
The present invention, in one configuration, is directed to producing a methane-containing gas from a hydrocarbon fuel energy source extracted from an in-situ recovery operation, such as a SAGD or HAGD operation, and subsequently converting at least a portion of the gas into steam, electrical power
The present invention, in one configuration, is directed to producing a methane-containing gas from a hydrocarbon fuel energy source extracted from an in-situ recovery operation, such as a SAGD or HAGD operation, and subsequently converting at least a portion of the gas into steam, electrical power and diluents for subsequent use in the aforementioned in-situ recovery operation while emitting only controlled amounts of carbon dioxide into the environment.
대표청구항▼
1. A method, comprising: (a) converting a hydrocarbon fuel into a synthesized gas comprising methane and other hydrocarbons, molecular hydrogen, sulfur compounds, and carbon oxides;(b) removing sulfur compounds from the synthesized gas to form a treated synthesized gas comprising at least most of th
1. A method, comprising: (a) converting a hydrocarbon fuel into a synthesized gas comprising methane and other hydrocarbons, molecular hydrogen, sulfur compounds, and carbon oxides;(b) removing sulfur compounds from the synthesized gas to form a treated synthesized gas comprising at least most of the hydrocarbons, molecular hydrogen, and carbon oxides in the synthesized gas and a waste gas comprising at least most of the sulfur compounds in the synthesized gas;(c) converting molecular hydrogen and carbon oxides in the treated synthesized gas into methane to form a product gas, the product gas comprising carbon oxides and methane;(d) removing at least most of the carbon oxides from the product gas to form an output gas comprising at least most of the methane in the product gas and a second waste gas comprising at least most of the carbon oxides in the product gas; and(e) combusting at least a portion of the output gas and/or a fuel derived therefrom to provide energy for in-situ recovery of a fossil fuel source from a subsurface formation. 2. The method of claim 1, wherein steps (a)-(e) are performed on a site positioned above the subsurface formation and wherein at least most of the carbon oxides are sequestered in a selected subsurface formation. 3. The method of claim 1, wherein the synthesized gas, after step (a) and before step (b), is contacted in a heat exchanger with water to reduce a temperature of the synthesized gas and convert the water into steam, at least a portion of the steam being provided to a steam turbine to provide energy for use in in-situ recovery of the fossil fuel source. 4. The method of claim 3, wherein, after being outputted by the heat exchanger, at least most of the particulates in the synthesized gas are removed to form a filtered synthesized gas. 5. The method of claim 3, wherein step (c) is performed by methanation and wherein, prior to step (c), the treated synthesized gas is contacted with a portion of the steam from the heat exchanger and wherein a portion of the steam is used in step (c) to convert molecular hydrogen and carbon oxides into methane. 6. The method of claim 1, wherein the fossil fuel source is at least one of bitumen, kerogen, and heavy crude oil and wherein the hydrocarbon fuel is at least one of coal, peat, bitumen, and petroleum coke. 7. A method, comprising: (a) converting a hydrocarbon fuel into a synthesized gas comprising methane and other hydrocarbons, molecular hydrogen, sulfur compounds, and carbon oxides;(b) removing sulfur compounds from the synthesized gas to form a treated synthesized gas comprising at least most of the hydrocarbons, molecular hydrogen, and carbon oxides in the synthesized gas and a waste gas comprising at least most of the sulfur compounds in the synthesized gas;(c) converting methane in the treated synthesized gas into molecular hydrogen and carbon oxides to form a product gas, the product gas comprising carbon oxides and molecular hydrogen;(d) removing at least most of the carbon oxides from the product gas to form an output gas comprising at least most of the molecular hydrogen in the product gas and a second waste gas comprising at least most of the carbon oxides in the product gas; and(e) combusting at least a portion of the output gas and/or a fuel derived therefrom to provide energy for in-situ recovery of a fossil fuel source from a subsurface formation. 8. The method of claim 7, wherein steps (a)-(e) are performed on a site positioned above the subsurface formation and wherein at least most of the carbon oxides are sequestered in a selected subsurface formation. 9. The method of claim 7, wherein step (c) comprises the sub-steps: (C1) converting, by a catalytic reformer unit, a first portion of the methane into molecular hydrogen and carbon oxides in an intermediate product gas; and(C2) converting, by a shift conversion unit, a second portion of the methane into molecular hydrogen and carbon oxides in the product gas. 10. The method of claim 7, wherein the hydrocarbon fossil fuel source is at least one of bitumen, kerogen, coal and heavy crude oil and wherein the hydrocarbon fuel is at least one of peat, bitumen, asphaltene and petroleum coke. 11. A method, comprising: (a) converting a hydrocarbon fuel into a synthesized gas comprising methane and other hydrocarbons, molecular hydrogen, sulfur compounds, and carbon oxides;(b) removing sulfur compounds from the synthesized gas to form a treated synthesized gas comprising at least most of the hydrocarbons, molecular hydrogen, and carbon oxides in the synthesized gas and a first waste gas comprising at least most of the sulfur compounds in the synthesized gas;(c) converting methane in the treated synthesized gas into molecular hydrogen and carbon oxides to form a product gas, the product gas comprising carbon oxides and molecular hydrogen;(d) converting a portion of the molecular hydrogen into an output gas comprising predominantly ammonia;(e) removing at least most of the carbon oxides from the product gas to form a second waste gas comprising at least most of the carbon oxides in the product gas; and(f) combusting at least a portion of the output gas and/or a fuel derived therefrom to provide energy for in-situ recovery of a fossil fuel source from a subsurface formation. 12. The method of claim 11, wherein steps (a)-(f) are performed on a site positioned above the subsurface formation and wherein at least most of the carbon oxides are sequestered in a selected subsurface formation. 13. The method of claim 11, wherein step (c) comprises the sub-steps: (C1) converting, by a catalytic reformer unit, a first portion of the methane into molecular hydrogen and carbon oxides in an intermediate product gas; and(C2) converting, by a shift conversion unit, a second portion of the methane into molecular hydrogen and carbon oxides in the product gas. 14. The method of claim 11, wherein the fossil fuel source is at least one of bitumen, kerogen, coal and heavy crude oil and wherein the hydrocarbon fuel is at least one of peat, bitumen, asphaltene and petroleum coke. 15. The method of claim 11, wherein the fossil fuel source is bitumen or heavy oil and further comprising: (g) converting at least a portion of the molecular hydrogen in the product gas into methanol; and(h) converting at least most of the methanol into olefins, wherein the olefins are used as diluents in bitumen recovery;(i) utilizing a portion of the carbon dioxide and converting at least most of the methanol into olefins, wherein the olefins and carbon dioxide are used as diluents in heavy oil recovery. 16. A method, comprising: (a) converting a hydrocarbon fuel into a synthesized gas comprising methane and other hydrocarbons, molecular hydrogen, sulfur compounds, and carbon oxides;(b) removing sulfur compounds from the synthesized gas to form a treated synthesized gas comprising at least most of the hydrocarbons, molecular hydrogen, and carbon oxides in the synthesized gas and a first waste gas comprising at least most of the sulfur compounds in the synthesized gas;(c) converting methane in the treated synthesized gas into molecular hydrogen and carbon oxides to form a product gas, the product gas comprising carbon oxides and molecular hydrogen;(d) converting at least a portion of the molecular hydrogen in the product gas into methanol; and(e) converting at least most of the methanol into olefins, wherein the olefins are used as diluents in bitumen recovery. 17. The method of claim 16, further comprising: (f) converting a portion of the molecular hydrogen into an output gas comprising predominantly ammonia;(g) removing at least most of the carbon oxides from the product gas to form a second waste gas comprising at least most of the carbon oxides in the product gas; and(h) combusting at least a portion of the output gas and/or a fuel derived therefrom to provide energy for thermally assisted recovery of a fossil fuel source from a subsurface formation. 18. The method of claim 17, wherein steps (a)-(h) are performed on a site positioned above the subsurface formation and wherein at least most of the carbon oxides are sequestered in a selected subsurface formation. 19. The method of claim 16, wherein step (c) comprises the sub-steps: (C1) converting, by a catalytic reformer unit, a first portion of the methane into molecular hydrogen and carbon oxides in an intermediate product gas; and(C2) converting, by a shift conversion unit, a second portion of the methane into molecular hydrogen and carbon oxides in the product gas. 20. The method of claim 16, wherein the fossil fuel source is at least one of bitumen, kerogen, coal and heavy crude oil and wherein the hydrocarbon fuel is at least one of peat, bitumen, asphaltene and petroleum coke. 21. A method, comprising: (a) converting bitumen or heavy oil into a synthesized gas comprising methane and other hydrocarbons, molecular hydrogen, sulfur compounds, and carbon oxides;(b) removing sulfur compounds from the synthesized gas to form a treated synthesized gas comprising at least most of the hydrocarbons, molecular hydrogen, and carbon oxides in the synthesized gas and a first waste gas comprising at least most of the sulfur compounds in the synthesized gas;(c) converting a portion of the methane in the treated synthesized gas into molecular hydrogen and carbon oxides to form product gases, the product gases comprising methane, molecular hydrogen and carbon oxides;(d) converting at least a portion of the molecular hydrogen in the product gas into methanol;(e) converting at least most of the methanol into olefins, wherein the olefins are in the form of diluents;(f) combusting a portion of at least one of methane and molecular hydrogen to generate electrical power;(g) converting carbon oxides to form a second waste gas, the second waste gas comprising carbon oxides and wherein at least most of the carbon oxides are sequestered in a selected subsurface formation; and(h) selling the electrical power, diluents and methane as products wherein most of the carbon from producing these products has been removed.
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