METHOD OF COMPLEX PREPARATION OF HYDROCARBON GAS Russian patent published in 2014 - IPC B01D53/18 B01D53/48 C01B17/04 

FIELD: process engineering.

SUBSTANCE: invention relates to processing of hydrocarbon gas. Proposed method comprises removal of heavy hydrocarbons, mercaptans, hydrogen sulphide, drying for production of cleaned gas and regeneration gases, and recovery of acid gas of regeneration to obtain sulfur and off gas. Note here that hydrocarbon gas is premixed with the mix of regeneration gases and off gas and subjected to absorption cleaning by chemisorbent to obtain organic phase, water and pre-cleaned gas to be directed for further cleaning. Said chemisorbent represents a hydrocarbon solution of sulfur, organic di- and polysulphides, as well as catalytic amount of organic compound containing tertiary nitrogen atom. The latter is produced by mixing organic phase with sulfur in amount that ensures a complete oxidative conversion of mercaptans.

EFFECT: higher yield, simplified process.

1 dwg