Process for adjusting the composition of a gas su00ecntese produced in a gasifier of the black liquor to flow downward in high temp.

摘要

Process for adjusting the composition of a gas su00ecntese produced in a gasifier of the black liquor to flow downward in high temperature.A process for adjusting the composition of a synthesis gas produced in a gaseifleador of black liquor at high temperature.Comprising the steps of (a) generating a stream of effluent from the black liquor gasifier gasifier in that by means of a jet stream and, optionally, a atomizante; (b) optionally cooling abruptly the stream of effluent from the gasifier with a gas stream to form a C Orrente effluent cooled suddenly with gas; (c) cooling the effluent of the gasified suddenlyR of the step (a) or the gas flow of the effluent cooled suddenly with gas from step (b) with a current of water to form a raw synthesis gas; (d) still cool and clean and separate the synthesis gas to form a raw synthesis gas not processed purified with a relationship H ~ 2 ~ / CO appropriate; (E) partially converting the synthesis gas purified in dimethyl ether in a section of su00ednThe thesis, producing at least a stream of product of DME and a purge stream rich in hydrogen of processed.(f) divide and recycle individual or combinations of chains divided the synthesis gas processed or not processed to the step (a) and / or step (b); and recycling a stream of by-product of Co ~ 2 ~ still being generated in step (E) partially or completely to step (a) and / or step (b).