Process for the isothermal absorption of ethylene oxide using fi

Details Process for the isothermal absorption of ethylene oxide using fi Process for the isothermal absorption of ethylene oxide using fi

1982-02-08

1984-09-04

Lacey, David L.

Gas separation

Means within gas stream for conducting concentrate to collector

55 48, 55 51, 55 89, 55 93, 549538, B01D 4700

Patent

active

044694920

ABSTRACT:
This invention relates to a process for the isothermal absorption of the ethylene oxide contained in the gas from an ethylene oxide production plant.
This process is characterized in that the gas is firstly cooled to a temperature of between 5.degree. and 60.degree. C., and is then fed at a pressure which can vary from 1 to 30 atm. to a water-fed isothermal film absorber, from the bottom of which is obtained a high concentration ethylene oxide solution which can be fed directly to a glycol production plant after recovering the ethylene still in solution.
By using this process, the absorption plant is simplified compared with known processes, and steam, electricity and cooling water consumption are considerably reduced.

REFERENCES:
patent: 2169210 (1939-08-01), Balcar
patent: 2622088 (1952-12-01), Thomas
patent: 2756241 (1956-07-01), Courter
patent: 2771473 (1956-11-01), Courter
patent: 3165539 (1965-01-01), Lutz
patent: 3217466 (1965-11-01), Bogart
patent: 3729899 (1973-05-01), Cunningham et al.

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