Refining assemblies and refining methods for rich natural gas
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C10L-003/08
B01J-008/02
C01B-003/38
C10L-003/10
출원번호
US-0820256
(2015-08-06)
등록번호
US-9828561
(2017-11-28)
발명자
/ 주소
Edlund, David J
출원인 / 주소
Element 1 Corp.
대리인 / 주소
Kolisch Hartwell, P.C.
인용정보
피인용 횟수 :
0인용 특허 :
92
초록▼
Refining assemblies and methods for refining rich natural gas containing a first methane gas and other hydrocarbons that are heavier than methane gas are disclosed. In some embodiments, the assemblies may include a methane-producing assembly configured to receive at least one liquid-containing feed
Refining assemblies and methods for refining rich natural gas containing a first methane gas and other hydrocarbons that are heavier than methane gas are disclosed. In some embodiments, the assemblies may include a methane-producing assembly configured to receive at least one liquid-containing feed stream that includes water and rich natural gas and to produce an output stream therefrom by (a) converting at least a substantial portion of the other hydrocarbons of the rich natural gas with the water to a second methane gas, a lesser portion of the water, and other gases, and (b) allowing at least a substantial portion of the first methane gas from the rich natural gas to pass through the methane-producing assembly unconverted. The assemblies may additionally include a purification assembly configured to receive the output stream and to produce a methane-rich stream therefrom having a greater methane concentration than the output stream.
대표청구항▼
1. A refining assembly for rich natural gas containing a first methane gas and other hydrocarbons that are heavier than methane gas, comprising: a methane-producing assembly configured to receive at least one liquid-containing feed stream that includes water and rich natural gas and to produce an ou
1. A refining assembly for rich natural gas containing a first methane gas and other hydrocarbons that are heavier than methane gas, comprising: a methane-producing assembly configured to receive at least one liquid-containing feed stream that includes water and rich natural gas and to produce an output stream therefrom by (a) converting at least a substantial portion of the other hydrocarbons of the rich natural gas with the water to a second methane gas, a lesser portion of the water, and other gases, and (b) allowing at least a substantial portion of the first methane gas from the rich natural gas to pass through the methane-producing assembly unconverted, wherein the output stream includes water vapor and the other gases includes carbon oxide gas and hydrogen gas;at least one gas dryer configured to remove at least a substantial portion of the water vapor from the output stream to produce an at least substantially dried stream; andat least one synthetic natural gas (SNG) reactor containing a catalyst and configured to convert at least a portion of the carbon oxide gas and at least a portion of the hydrogen gas in the at least substantially dried stream to methane gas to produce a methane-rich stream therefrom having a greater methane concentration than the output stream. 2. The refining assembly of claim 1, wherein the methane-producing assembly includes: a vaporizer configured to receive and vaporize at least a portion of the at least one liquid-containing feedstream that includes water and rich natural gas to form an at least substantially vaporized stream;a methane-producing reactor containing a catalyst and configured to receive the at least substantially vaporized stream and to produce the output stream by (a) converting at least a substantial portion of the other hydrocarbons with the water to the second methane gas, a lesser portion of the water, and the other gases and (b) allowing at least a substantial portion of the first methane gas from the rich natural gas to pass through the methane-producing reactor unconverted; anda heating assembly configured to produce a heated exhaust stream for heating at least one of the vaporizer to at least a minimum vaporization temperature or the methane-producing reactor to at least a minimum methane-producing temperature. 3. The refining assembly of claim 2, wherein the heating assembly includes: a frame; andfirst and second opposed planar plates attached to the frame and defining an interior therebetween, wherein the frame includes one or more inlets that are fluidly connected to the interior and that are for receiving at least one fuel stream, and one or both of the first and second plates include openings distributed along at least a substantial portion of a length and/or a width of one or both of the first and second plates, the openings define a plurality of outlets for the at least one fuel stream. 4. The refining assembly of claim 1, where the output stream further includes liquid water, further comprising at least one water knockout device configured to remove at least a substantial portion of the liquid water from the output stream. 5. The refining assembly of claim 2, wherein the heating assembly includes at least one burner. 6. A refining assembly for rich natural gas containing a first methane gas and other hydrocarbons that are heavier than methane gas, comprising: a vaporizer configured to receive and vaporize at least a portion of at least one liquid-containing feedstream that includes water and rich natural gas to form an at least substantially vaporized stream;a methane-producing reactor containing a catalyst and configured to receive the at least substantially vaporized feed stream and to produce an output stream by (a) converting at least a substantial portion of the other hydrocarbons with the water to a second methane gas, a lesser portion of the water, hydrogen gas, and carbon oxide gas, and (b) allowing at least a substantial portion of the first methane gas from the rich natural gas stream to pass through the methane-producing reactor unconverted;a first heating assembly configured to receive at least one fuel stream and at least one air stream and to produce a heated exhaust stream for heating the vaporizer to at least a minimum vaporization temperature and the methane-producing reactor to at least a minimum methane-producing temperature; anda purification assembly configured to receive the output stream and to produce a methane-rich stream therefrom having a greater methane concentration than the output stream. 7. The refining assembly of claim 6, wherein the purification assembly includes: at least one of a gas dryer or a water knockout device configured to remove at least a substantial portion of water from the output stream to produce an at least substantially dried stream; andat least one synthetic natural gas (SNG) reactor containing a catalyst and configured to convert at least a portion of the carbon oxide gas and at least a portion of the hydrogen gas in the at least substantially dried stream to methane gas and to produce a methane-rich stream therefrom having a greater methane concentration than the output stream. 8. The refining assembly of claim 7, further comprising a second heating assembly configured to produce a heated exhaust stream for heating the at least one SNG reactor to a minimum conversion temperature. 9. The refining assembly of claim 8, wherein at least one of the first and second heating assemblies include: a frame; andfirst and second opposed planar plates attached to the frame and defining an interior therebetween, wherein the frame includes one or more inlets that are fluidly connected to the interior and that are for receiving at least one fuel stream, and one or both of the first and second plates include openings distributed along at least a substantial portion of a length and/or a width of one or both of the first and second plates, the openings define a plurality of outlets for the at least one fuel stream. 10. The refining assembly of claim 8 , wherein at least one of the first and second heating assemblies include at least one burner. 11. The refining assembly of claim 6, wherein the purification assembly further includes at least one water knockout device configured to remove at least a substantial portion of liquid water from the output stream. 12. A refining assembly for rich natural gas containing a first methane gas and other hydrocarbons that are heavier than methane gas, comprising: a vaporizer configured to receive and vaporize at least a portion of a liquid-containing feed stream to form an at least substantially vaporized stream;a feedstock delivery system configured to deliver the liquid-containing feed stream to the vaporizer, wherein the liquid-containing feed stream includes water from a water source and rich natural gas from a rich natural gas source;a methane-producing reactor containing a catalyst and configured to receive the at least substantially vaporized stream and to produce the output stream by (a) converting at least a substantial portion of the other hydrocarbons with the water to the second methane gas, a lesser portion of the water, and the other gases and (b) allowing at least a substantial portion of the first methane gas from the rich natural gas to pass through the methane-producing reactor unconverted;a heating assembly configured to heat at least one of the vaporizer to at least a minimum vaporization temperature or the methane-producing reactor to at least a minimum methane-producing temperature; anda purification assembly configured to receive the output stream and to produce a methane-rich stream therefrom having a greater methane concentration than the output stream. 13. The refining assembly of claim 12, wherein the feedstock delivery system is further configured to deliver at least one fuel stream from a fuel source to the heating assembly. 14. The refining assembly of claim 12, wherein the heating assembly includes: a frame; andfirst and second opposed planar plates attached to the frame and defining an interior therebetween, wherein the frame includes one or more inlets that are fluidly connected to the interior and that are for receiving at least one fuel stream, and one or both of the first and second plates include openings distributed along at least a substantial portion of a length and/or a width of one or both of the first and second plates, the openings define a plurality of outlets for the at least one fuel stream. 15. The refining assembly of claim 12, wherein the heating assembly includes at least one burner. 16. The refining assembly of claim 12, wherein the purification assembly includes: at least one of a gas dryer or a water knockout device configured to remove at least a substantial portion of water from the output stream to produce an at least substantially dried stream; andat least one synthetic natural gas (SNG) reactor containing a catalyst and configured to convert at least a portion of the carbon oxide gas and at least a portion of the hydrogen gas in the at least substantially dried stream to methane gas and to produce a methane-rich stream therefrom having a greater methane concentration than the output stream. 17. The refining assembly of claim 16, wherein the purification assembly further includes at least one water knockout device configured to remove at least a substantial portion of liquid water from the output stream.
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