【AU2019200234A1】Liquefiednaturalgasproductionsyste
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(12) STANDARD PATENT APPLICATION (11) Application No. AU 2019200234 Al (19) AUSTRALIAN PATENT OFFICE
(54) Title Liquefied natural gas production system and method with greenhouse gas removal
BACKGROUND
[0004] LNG production is a rapidly growing means to supply natural gas from locations with an abundant supply of natural gas to distant locations with a strong demand of natural gas. The conventional LNG cycle includes: a) initial treatments of the natural gas resource to remove contaminants such as water, sulfur compounds and carbon dioxide; b) the separation of some heavier hydrocarbon gases, such as propane, butane, pentane, etc. by a variety of possible methods including self-refrigeration, external refrigeration, lean oil, etc.; c) refrigeration of the natural gas substantially by external refrigeration to form LNG at near atmospheric pressure and about -160 'C; d) transport of the LNG product in ships or tankers designed for this purpose to a market location; e) re-pressurization and re-gasification of the LNG to a pressurized natural gas that may distributed to natural gas consumers. Step (c) of the conventional LNG cycle usually requires the use of large refrigeration compressors often powered by large gas turbine drivers that emit substantial carbon and other emissions. Large
[0002] This application is related to the U.S. Provisional Patent Application number 62/192,657 entitled "INCREASING EFFICIENCY IN AN LNG PRODUCTION SYSTEM BY PRE-COOLING A NATURAL GAS FEED STREAM," having common inventors and assignee and filed on an even date herewith, the disclosure of which is incorporated by reference herein in its entirety.
[0001] This application claims the priority benefit of United States Patent Application number 62/192,654 filed July 15, 2015 entitled LIQUEFIED NATURAL GAS PRODUCTION SYSTEM AND METHOD WITH GREENHOUSE GAS REMOVAL, the entirety of which is incorporated by reference herein.
(43)
Publication Date:
(43)
Publication Journal Date:
(62) Divisional of: 2016294175
2019.01.31 2019.01.31
(71) Applicant(s) ExxonMobil Upstream Research Company
FIELD OF THE INVENTION
[0003] The invention relates to the liquefaction of natural gas to form liquefied natural gas (LNG), and more specifically, to the production of LNG in remote or sensitive areas where the construction and/or maintenance of capital facilities, and/or the environmental impact of a conventional LNG plant may be detrimental.
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(72) Inventor(s) Huntington, Richard A.;Gupte, Parag A.;Fritz Jr., Pierre;Denton, Robert D.
(74) Agent / Attorney Watermark Intellectual Property Pty Ltd, L 1 109 Burwood Rd, Hawthorn, VIC, 3122, AU
ABSTRACT Described herein are systems and processes to produce liquefied natural gas (LNG) using liquefied nitrogen (LIN) as the refrigerant. Greenhouse gas contaminants are removed from the LIN using a greenhouse gas removal unit.
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LIQUEFIED NATURAL GAS PRODUCTION SYSTEM AND METHOD WITH GREENHOUSE GAS REMOVAL
CROSS-REFERENCE TO RELATED APPLICATIONS
(51) International Patent Classification(s)
F25J 3/08 (2006.01)
F25J 1/02 (2006.01)
F25J 1/00 (2006.01)
F25J 3/02 (2006.01)
(21)
Application No: 2019200234
(22) Date of Filing: 2019.01.14
(54) Title Liquefied natural gas production system and method with greenhouse gas removal
BACKGROUND
[0004] LNG production is a rapidly growing means to supply natural gas from locations with an abundant supply of natural gas to distant locations with a strong demand of natural gas. The conventional LNG cycle includes: a) initial treatments of the natural gas resource to remove contaminants such as water, sulfur compounds and carbon dioxide; b) the separation of some heavier hydrocarbon gases, such as propane, butane, pentane, etc. by a variety of possible methods including self-refrigeration, external refrigeration, lean oil, etc.; c) refrigeration of the natural gas substantially by external refrigeration to form LNG at near atmospheric pressure and about -160 'C; d) transport of the LNG product in ships or tankers designed for this purpose to a market location; e) re-pressurization and re-gasification of the LNG to a pressurized natural gas that may distributed to natural gas consumers. Step (c) of the conventional LNG cycle usually requires the use of large refrigeration compressors often powered by large gas turbine drivers that emit substantial carbon and other emissions. Large
[0002] This application is related to the U.S. Provisional Patent Application number 62/192,657 entitled "INCREASING EFFICIENCY IN AN LNG PRODUCTION SYSTEM BY PRE-COOLING A NATURAL GAS FEED STREAM," having common inventors and assignee and filed on an even date herewith, the disclosure of which is incorporated by reference herein in its entirety.
[0001] This application claims the priority benefit of United States Patent Application number 62/192,654 filed July 15, 2015 entitled LIQUEFIED NATURAL GAS PRODUCTION SYSTEM AND METHOD WITH GREENHOUSE GAS REMOVAL, the entirety of which is incorporated by reference herein.
(43)
Publication Date:
(43)
Publication Journal Date:
(62) Divisional of: 2016294175
2019.01.31 2019.01.31
(71) Applicant(s) ExxonMobil Upstream Research Company
FIELD OF THE INVENTION
[0003] The invention relates to the liquefaction of natural gas to form liquefied natural gas (LNG), and more specifically, to the production of LNG in remote or sensitive areas where the construction and/or maintenance of capital facilities, and/or the environmental impact of a conventional LNG plant may be detrimental.
- 26 -
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z '00co
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7
CN
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----------------- --------------- --
LOto00Fra bibliotekmmm
m
00 C14 04
co w
0
0
LO
-11 1
co
00
CN
CcoD .....................
(72) Inventor(s) Huntington, Richard A.;Gupte, Parag A.;Fritz Jr., Pierre;Denton, Robert D.
(74) Agent / Attorney Watermark Intellectual Property Pty Ltd, L 1 109 Burwood Rd, Hawthorn, VIC, 3122, AU
ABSTRACT Described herein are systems and processes to produce liquefied natural gas (LNG) using liquefied nitrogen (LIN) as the refrigerant. Greenhouse gas contaminants are removed from the LIN using a greenhouse gas removal unit.
LO
E!2'Ca L
cLoO 0 i
cn
......t.o..............
LIQUEFIED NATURAL GAS PRODUCTION SYSTEM AND METHOD WITH GREENHOUSE GAS REMOVAL
CROSS-REFERENCE TO RELATED APPLICATIONS
(51) International Patent Classification(s)
F25J 3/08 (2006.01)
F25J 1/02 (2006.01)
F25J 1/00 (2006.01)
F25J 3/02 (2006.01)
(21)
Application No: 2019200234
(22) Date of Filing: 2019.01.14