Refrigeration – Cryogenic treatment of gas or gas mixture – Liquefaction
Patent
1998-01-06
1999-11-09
Capossela, Ronald
Refrigeration
Cryogenic treatment of gas or gas mixture
Liquefaction
62619, 62935, F25J 100
Patent
active
059791772
ABSTRACT:
A refrigeration system for an ethylene plant uses a low pressure demethanizer and a binary refrigerant comprising a mixture of methane and ethylene or methane and ethane. The refrigeration composition may be constant throughout the system or separators may be used to divide the refrigerant into a methane-rich binary refrigerant and an ethylene- or ethane-rich binary refrigerant.
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Crawford John J.
McNab Richard John
Stanley Stephen J.
Sumner Charles
Wei Vitus Tuan
ABB Lummus Global Inc.
Capossela Ronald
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