Procedure for washing agent regeneration in a physical gas washing, by separating materials of first type through cold stripping in an enrichment stripping column and separating materials of second type through subsequent hot regeneration

摘要

The procedure for washing agent regeneration in a physical gas washing, comprises separating materials of the first type through cold stripping in an enrichment stripping column and separating materials of second type through subsequent hot regeneration in a hot regeneration column. The loaded washing agent is subjected in an arrangement for carrying out a warm expulsion after the cold stripping, by which the concentration of materials of the first type is reduced in the loaded washing agent. The warmed up loaded washing agent is subjected for warm expulsion of a warm stripping. The procedure for washing agent regeneration in a physical gas washing, comprises separating materials of the first type through cold stripping in an enrichment stripping column and separating materials of second type through subsequent hot regeneration in a hot regeneration column. The loaded washing agent is subjected in an arrangement for carrying out a warm expulsion after the cold stripping, by which the concentration of materials of the first type is reduced in the loaded washing agent. The warmed up loaded washing agent is subjected for warm expulsion of a warm stripping with a warm strip gas or a detente. Nitrogen is used a strip gas for cold and hot stripping. In the physical gas washing, carbon dioxide and sulfur compound containing synthesis raw gas with methanol are cleaned as washing agent. The warm strip gas produced during the warm stripping and the material existing gas stream separated from the loaded washing agent are removed by head of the warm strippers and are abundant in lower part of the enrichment column. An independent claim is included for a device for washing agent regeneration in physical gas washing.