发明名称 |
METHOD FOR THE PRODUCTION OF LIQUEFIED NATURAL GAS AND NITROGEN |
摘要 |
A method for the production of liquefied natural gas (“LNG”) and nitrogen is provided. The method may include the steps of: a) providing a nitrogen production facility, wherein nitrogen production facility comprises: a main heat exchanger, an air separation unit, a nitrogen recycle compressor, a first nitrogen refrigeration supply configured to provide refrigeration to the main heat exchanger for cooling a main air feed, b) providing a secondary refrigeration supply; c) liquefying a natural gas stream using refrigeration from the secondary refrigeration supply to form an LNG product stream; wherein the secondary refrigeration supply is configured to compress and expand a refrigerant to produce refrigeration, wherein the refrigerant of the secondary refrigeration supply is shared with refrigerant of the first nitrogen refrigeration supply |
申请公布号 |
US2017038137(A1) |
申请公布日期 |
2017.02.09 |
申请号 |
US201615230049 |
申请日期 |
2016.08.05 |
申请人 |
L'Air Liquide, Societe Anonyme pour l'Etude et I'Exploitation des Procedes Georges Claude |
发明人 |
TURNEY Michael A. |
分类号 |
F25J1/02;F25J3/02;F25J3/04;F25J1/00 |
主分类号 |
F25J1/02 |
代理机构 |
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代理人 |
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主权项 |
1. A method for the production of liquefied natural gas (“LNG”) and nitrogen, the method comprising the steps of:
a) providing a nitrogen production facility, wherein nitrogen production facility comprises: a main heat exchanger, an air separation unit, a nitrogen recycle compressor, a first nitrogen refrigeration supply configured to provide refrigeration to the main heat exchanger for cooling a main air feed; b) providing a secondary refrigeration supply; c) liquefying a natural gas stream using refrigeration from the secondary refrigeration supply to form an LNG product stream; wherein the secondary refrigeration supply is configured to compress and expand a refrigerant to produce refrigeration, wherein the refrigerant of the secondary refrigeration supply is shared with refrigerant of the first nitrogen refrigeration supply. |
地址 |
Paris FR |