PROCESS FOR THE PRODUCTION OF ACETYLENE AND SYNTHESIS GAS Russian patent published in 2018 - IPC C01B3/36 C07C11/24 C07C2/78 

FIELD: technological processes; gas industry.

SUBSTANCE: invention relates to a process for the production of acetylene and synthesis gas. Process is carried out by partial oxidation of hydrocarbons by oxygen, wherein the first feed stream containing one or more hydrocarbons, and the second feed stream containing oxygen are separately heated from each other, mixed in a mass flow ratio from the second feed stream and the first feed stream corresponding to an oxygen number less than or equal to 0.31, wherein the oxygen number is the ratio of the actually present amount of oxygen in the second feed stream and the stoichiometrically necessary amount of oxygen, which is required for the complete combustion of one or more hydrocarbons contained in the first feed stream, is supplied to a combustion chamber where occurs partial oxidation of these hydrocarbons to obtain the first cracked gas stream, wherein the first cracked gas stream in the prequenching as the result of injection of aqueous medium for quenching is cooled to a temperature in the range of from 100 to 1,000 °C, to obtain the second cracked gas stream, from 50 to 90 % of the solids contained therein is separated from the second cracked gas stream to obtain a stream of solids, as well as the third cracked gas stream, the third cracked gas stream during the final quenching as a result of water injection is cooled to a temperature from 80 to 90 °C to obtain the fourth cracked gas stream, as well as the first stream of process water , the fourth cracked gas stream is subjected to final separation of the solids to obtain one or more process water streams, as well as a gaseous product stream, process water streams are collected into one combined stream which is partially fed back to the final quenching process, but otherwise subjected to purification by partial evaporation,wherein the stream being evaporated in an amount from 0.01 to 10 % by weight, based on the total mass of the stream, to obtain a purified stream of process water that is partially cooled and recycled, but otherwise withdrawn and fed to the waste water need to be treated.

EFFECT: invention provides a high yield of acetylene and retention of unwanted gaseous and / or liquid by-products, and additionally enables sufficient dry removal and retention of solid unwanted by-products.

13 cl, 1 dwg, 3 tbl