Low pressure separation for light hydrocarbon recovery. [Energy conservation by partial compression, chilling to condense heavier hydrocarbons, and then compressing further in liquid states for fractionation]
Patent
·
OSTI ID:6850325
Net horsepower required for recovering high purity ethylene is reduced by process gas compression of furnace effluent to only low pressures before entering recovery facilities. The compressor discharge undergoes chilling in heat exchangers or pumparound towers designed for small pressure drops. Hydrocarbons condensed during chilling are pumped to higher pressures for fractionation.
- Assignee:
- Exxon Research and Engineering Co.
- Patent Number(s):
- US 4436540
- OSTI ID:
- 6850325
- Country of Publication:
- United States
- Language:
- English
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