Process of regenerating laden absorbents

US4318716A · kind A · utility

Assignee

• Metallgesellschaft AG · DE

Inventors

• Alexander Doerges · Frankfurt am Main, DE
• Manfred Kriebel · Frankfurt am Main, DE
• Johann Schlauer · Schmallenberg, DE

Key dates

• Filing date: Jul 21, 1980
• Grant date: Mar 9, 1982
• Expiry date: Jul 21, 2000

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10K1/08
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

An improvement in a process of regenerating a hydrocarbon laden water miscible high boiling organic solvent obtained by scrubbing a hydrocarbon-containing gas with said water miscible high boiling organic solvent at normal temperature and super atmospheric pressure, wherein the laden solvent is regenerated by flashing, heating and/or stripping, cooled and recycled to the scrubbing step, the improvement comprising: PA0 A. adding liquid hydrocarbons to at least a part of said regenerated solvent and thereafter extracting the resultant mixture in the presence of water whereby to obtain a hydrocarbon rich phase and an aqueous phase containing said solvent; PA0 B. separating said aqueous phase from said hydrocarbon rich phase and recycling said aqueous phase to the regeneration step; and PA0 C. withdrawing said hydrocarbon rich phase.