发明名称 |
Hybrid cycle for production of liquefied natural gas |
摘要 |
Refrigeration process for gas liquefaction which utilizes one or more vaporizing refrigerant cycles to provide refrigeration below about -40 DEG C and a gas expander cycle to provide refrigeration below about -100 DEG C. Each of these two types of refrigerant systems is utilized in an optimum temperature range which maximizes the efficiency of the particular system. A significant fraction of the total refrigeration power required to liquefy the feed gas (typically more than 5% and often more than 10% of the total) can be consumed by the vaporizing refrigerant cycles. The invention can be implemented in the design of a new liquefaction plant or can be utilized as a retrofit or expansion of an existing plant by adding gas expander refrigeration circuit to the existing plant refrigeration system. <IMAGE> |
申请公布号 |
EP1340951(A3) |
申请公布日期 |
2003.11.26 |
申请号 |
EP20030011141 |
申请日期 |
2000.10.06 |
申请人 |
AIR PRODUCTS AND CHEMICALS, INC. |
发明人 |
ROBERTS, MARK JULIAN;AGRAWAL, RAKESH |
分类号 |
F25J1/00;F17C5/00;F25J1/02;(IPC1-7):F25J1/02 |
主分类号 |
F25J1/00 |
代理机构 |
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代理人 |
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地址 |
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