Process for recovering ethylene from an olefin stream produced b

Details Process for recovering ethylene from an olefin stream produced b Process for recovering ethylene from an olefin stream produced b

1996-08-09

1998-09-22

Griffin, Walter D.

Chemistry of hydrocarbon compounds

Unsaturated compound synthesis

From nonhydrocarbon feed

585314, 585323, 585324, 585809, 585638, 208347, 208351, 203 73, 203 74, C07C 120, C07C 704, C10G 702, B01D 314

Patent

active

058116214

ABSTRACT:
A polymerizable grade of ethylene is recovered from an olefin-containing composition, prepared by the conversion of a methoxy compound to olefins, by a process which significantly reduces the requirements of the demethanizer distillation column through which hydrogen and methane are eliminated as impurities from the ethylene product without suffering economically unacceptable losses of ethylene to the hydrogen-methane fraction that is separated. The invention also provides for a C-2 splitter column of simplified requirements.

REFERENCES:
patent: 2514294 (1950-07-01), Rupp
patent: 3758603 (1973-09-01), Steigelmann et al.
patent: 4100219 (1978-07-01), Rodeward
patent: 4115086 (1978-09-01), Jordan et al.
patent: 4545895 (1985-10-01), Brand et al.
patent: 5215648 (1993-06-01), Zones et al.
patent: 5430211 (1995-07-01), Pogue et al.

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