Refrigeration – Cryogenic treatment of gas or gas mixture – Liquefaction
Reexamination Certificate
2006-08-01
2006-08-01
Jones, Melvin (Department: 3744)
Refrigeration
Cryogenic treatment of gas or gas mixture
Liquefaction
C062S620000, C062S623000
Reexamination Certificate
active
07082787
ABSTRACT:
The recovery of ethylene from light gases at low temperature by the use of a mixed refrigeration system comprising methane, ehtylene and/or ethane, and propylene and/or propane.
REFERENCES:
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patent: 5379597 (1995-01-01), Howard
patent: 5430223 (1995-07-01), Bauer
patent: 6253574 (2001-07-01), Stockmann et al.
patent: 6347531 (2002-02-01), Roberts et al.
patent: 2002/0174679 (2002-11-01), Wei
Eng Wayne W. Y.
Foral Michael J.
Lee Guang-Chung
Logsdon Jeff
Papadopoulos Christos
BP Corporation North America Inc.
Henes James R.
Jones Melvin
McCraw B. Clayton
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