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Inventor: Wadsworth; David M.
Address: Laconia, NH
No. of patents: 2
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 5647972 |
Low pressure chilling train for olefin plants |
July 15, 1997 |
| A method of processing a cracked gas feedstream containing hydrogen and C.sub.1 to C.sub.6 and heavier hydrocarbons is described using a relatively low pressure as compared to conventional cryogenic separation processes. At pressures below 27 bars, the feedstream is dried and cooled |
| 5502971 |
Low pressure recovery of olefins from refinery offgases |
April 2, 1996 |
| A low pressure cryogenic process is disclosed for recovering C.sub.2 and heavier hydrocarbons and particularly olefins from a refinery offgas containing hydrogen, methane, nitrogen oxide in addition to the C.sub.2 and heavier hydrocarbons. The conventional high pressures are eliminated |
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