Title:
気相冷媒を使用して炭化水素流を冷却するための改善された方法およびシステム
Document Type and Number:
Japanese Patent JP6835902
Kind Code:
B2
Abstract:
Described herein are methods and systems for the liquefaction of a natural gas stream using a refrigerant comprising methane or a mixture of methane and nitrogen. The methods and systems use a refrigeration circuit and cycle that employs one or more turbo-expanders to expand one or more streams of gaseous refrigerant to provide one or more streams of at least predominantly gaseous refrigerant that are used to provide refrigeration for liquefying and/or precooling the natural gas, and a J-T valve to expand down to a lower pressure a stream of liquid or two-phase refrigerant to provide a vaporizing stream of refrigerant that provides refrigeration for sub-cooling.
Inventors:
Gouri Krishnamurti
Mark Julian Roberts
Mark Julian Roberts
Application Number:
JP2019080684A
Publication Date:
February 24, 2021
Filing Date:
April 22, 2019
Export Citation:
Assignee:
AIR PRODUCTS AND CHEMICALS INCORPORATED
International Classes:
F25J1/00; F25B1/00; F25B1/10; F25B31/00; F25J1/02; F25J5/00
Domestic Patent References:
| JP2018013326A |
Foreign References:
| US3162519 | ||||
| CN105823304A | ||||
| US3318103 | ||||
| DE102006039889A1 | ||||
| US20160054053 |
Attorney, Agent or Firm:
Atsushi Aoki
Shinji Mitsuhashi
Kenji Kimura
Naori Kota
Shinji Mitsuhashi
Kenji Kimura
Naori Kota