Removing liquid hydrocarbons from polyether solvents

Details Removing liquid hydrocarbons from polyether solvents Removing liquid hydrocarbons from polyether solvents

1981-04-02

1982-06-08

Mars, Howard T.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

210634, 55 54, 585833, C07C 4138

Patent

active

043341020

ABSTRACT:
A method of removing normally liquid hydrocarbons from a polyether solvent such as dimethyl ether of polyethelene glycol by mixing the solution with an aqueous salt solution, removing at a low temperature an organic layer containing liquid hydrocarbons, heating the remaining aqueous layer to a higher temperature where it separates into a second organic layer containing polyether solvent and an aqueous salt solution. The aqueous salt solution is cooled and recycled to mix with additional polyether solvent solution at the low temperature. The process is particularly applicable to removing liquid hydrocarbons which accumulate in recirculating polyether solvents used for absorption of acid gases from feedstocks such as natural gas, synthetic natural gas, ammonia synthesis gas and refinery gas.

REFERENCES:
patent: 3225113 (1965-12-01), McNulty et al.
patent: 3737392 (1973-06-01), Ameen
patent: 3915674 (1975-10-01), Smith

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