Removal of ethane from natural gas at high pressure
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B01D-053/04
B01D-053/047
출원번호
US-0803524
(2010-06-29)
등록번호
US-8282709
(2012-10-09)
발명자
/ 주소
Kuznicki, Steven Mitchell
Avila, Adolfo Maria
Shi, Meng
Strom, Vernon Lindsay
Herrera, Patricio S.
출원인 / 주소
The Governors of the University of Alberta
대리인 / 주소
Johnson, Kenneth H
인용정보
피인용 횟수 :
3인용 특허 :
24
초록▼
ETS-10 type materials preferentially adsorb ethane and, if present, C3+ paraffins from mixtures comprising methane, ethane and optionally C3+ paraffins at pressures above 200 psia. A process in which ETS-10 type materials are used to separate ethane and C3+ paraffins from natural gas streams at over
ETS-10 type materials preferentially adsorb ethane and, if present, C3+ paraffins from mixtures comprising methane, ethane and optionally C3+ paraffins at pressures above 200 psia. A process in which ETS-10 type materials are used to separate ethane and C3+ paraffins from natural gas streams at over 200 psia is provided.
대표청구항▼
1. A process to selectively remove ethane and, if present, C3+ paraffins from a mixture comprising methane, ethane and optionally C3+ paraffins, said process comprising contacting said mixture with an ETS-10 type material at a pressure of at least 200 psia. 2. The process of claim 1, wherein said mi
1. A process to selectively remove ethane and, if present, C3+ paraffins from a mixture comprising methane, ethane and optionally C3+ paraffins, said process comprising contacting said mixture with an ETS-10 type material at a pressure of at least 200 psia. 2. The process of claim 1, wherein said mixture comprises primarily methane and ethane. 3. The process of claim 1, wherein said mixture is a natural gas stream. 4. The process of claim 2, wherein said mixture is contacted with said ETS-10 type material at a pressure of at least 400 psia. 5. The process of claim 3, wherein said natural gas stream is contacted with said ETS-10 type material at a pressure of at least 500 psia. 6. The process of claim 1, wherein said ETS-10 type material is an as-prepared ETS-10 zeolite. 7. The process of claim 1, wherein said ETS-10 type material is a cationically modified ETS-10 zeolite. 8. The process of claim 1, wherein said ETS-10 type material is structurally modified ETS-10 zeolite. 9. A swing adsorption process for separating ethane and optionally C3+ paraffins from a mixture comprising methane, ethane and optionally C3+ paraffins, said process comprising: i) passing said mixture through an adsorbent bed comprising an ETS-10 type material at a pressure at of at least 200 psia wherein ethane and, if present, C3+ paraffins are selectively adsorbed relative to methane, to give an adsorption effluent stream;ii) recovering a desorption effluent stream from said adsorbent bed by carrying out one or more of the following: a) reducing the pressure in said adsorbent bed;b) increasing the temperature in said adsorbent bed;wherein said adsorption effluent stream is enriched in methane relative to said mixture and said desorption effluent stream is enriched in ethane and optionally C3+ paraffins relative to said mixture. 10. The process of claim 9, wherein said mixture is a natural gas stream. 11. The process of claim 9, wherein the process is a cycle swing adsorption process. 12. A process for separating ethane and optionally C3+ paraffins from a mixture comprising methane, ethane and optionally C3+ paraffins, said process comprising: i) passing said mixture through an adsorbent bed comprising an ETS-10 type material at a pressure at of at least 200 psia wherein ethane and, if present, C3+ paraffins are selectively adsorbed relative to methane, to give an adsorption effluent stream;ii) recovering a desorption effluent stream from said adsorbent bed by contacting the adsorbent bed with water;wherein said adsorption effluent stream is enriched in methane relative to said mixture and said desorption effluent stream is enriched in ethane and optionally C3+ paraffins relative to said mixture. 13. The process of claim 12, wherein said adsorbent bed is regenerated by heating the adsorbent bed, optionally at reduced pressure, to remove water. 14. A process comprising contacting a feed mixture comprising methane, ethane and at least one C3+ paraffin with an adsorption bed comprising an ETS-10 type material, at a specific temperature and pressure, for a number of bed volumes which under the chosen temperature and pressure conditions exceeds the breakthrough volume for ethane but which does not exceed the breakthrough volume for C3+ paraffins, said process giving an effluent stream which is enriched in methane and ethane relative to said feed mixture and which is essentially free of C3+ paraffins. 15. The process of claim 14, further comprising a step of contacting said effluent stream which is enriched in methane and ethane with an ETS-10 type material to selectively adsorb ethane. 16. The process of claim 14 wherein said specific pressure is at least 200 psia. 17. A process comprising passing a feed mixture comprising methane, ethane and optionally present C3+ paraffins through an adsorption bed comprising an ETS-10 type material, at a specific temperature and pressure, for a number of bed volumes which under the chosen temperature and pressure conditions does not exceed the breakthrough volume for ethane or, if present, C3+ paraffins, said process giving an effluent stream enriched in methane relative to said mixture and which is essential free of ethane and C3+ paraffins. 18. The process of claim 17 wherein said specific pressure is at least 200 psia.
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이 특허에 인용된 특허 (24)
Mezey Eugene J. (Columbus OH) Dinovo Salvatore T. (Columbus OH), Adsorbent regeneration and gas separation utilizing microwave heating.
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Kuznicki Steven M. (Easton PA) Thrush Kathleen A. (Easton PA), Large-pored molecular sieves with charged octahedral titanium and charged tetrahedral aluminum sites.
Kratz Wilbur Clymer ; Golden Timothy Christopher ; Kalbassi Mohammad Ali,GBX, Process for the removal of water, CO.sub.2, ethane and C.sub.3 + hydrocarbons from a gas stream.
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Matteucci, Scott T.; Goltz, H. Robert; Badhwar, Ajay N.; Shurgott, Nicholas J., Method for regenerating adsorbent media used for extracting natural gas liquids from natural gas.
Matteucci, Scott T.; Goltz, H. Robert; Badhwar, Ajay N.; Shurgott, Nicholas J.; Leister, Jonathan W., Sequential removal of NGLs from a natural gas stream.
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