Method for purifying organic compound of methyl-ethyl ketone apparatus exhaust gas H2

Abstract

The invention relates to a tail gas H of a methyl ethyl ketone plant 2 Purification method of organic compounds in air. Methyl ethyl ketone plant tail gas H 2 The purification method of organic compounds in the medium is to use activated carbon, especially the activated carbon of fruit shell carbon as the purification agent, at the purification temperature of 0-150 ° C, H 2 Airspeed≤500h -1 , H 2 Under the condition of pressure 0.01~20MPa for H 2 The organic compounds in the gas are purified; the activated carbon is preferably pretreated with acid, alkaline substance, salt or two or three of them. The process method for H 2 The removal activity of organic compounds in the gas is high, the removal is clean, the process is simple, the operation is convenient, and it is suitable for industrial application.

Description

technical field [0001] The present invention relates to a H 2 Purification method of organic compounds in gas, especially a kind of methyl ethyl ketone plant tail gas H 2 Purification method of organic compounds in air. Background technique [0002] Methyl ethyl ketone plant tail gas H 2 Purification requirements and H 2 It is directly related to the use of EP0490037, which describes the use of a zeolite to adsorb methyl ethyl ketone in waste gas, and WO 0025901 invented the use of MnO 2 -CuO-K 2 The O catalyst removes methyl ethyl ketone in the gas under the condition of 50-150° C., and the removal rate is 90%. In addition, the tail gas H of the methyl ethyl ketone plant 2 Generally contain organic compounds, such as methyl ethyl ketone, sec-butanol and C 4 hydrocarbons, the presence of these organic compounds strongly affects the H 2 The utilization of hydrogenation, such as for residual oil hydrogenation, affects the activity of hydrogenation catalyst due to the p...

AI Technical Summary

Problems solved by technology

In addition, the tail gas H of the methyl ethyl ketone plant 2 Generally contain organic compounds, such as methyl ethyl ketone, sec-butanol and C 4 hydrocarbons, the presence of these organic compounds strongly affects the H 2 Utilization, such as for residual oil hydrogenation, due to the presence of organic compounds, affects the activity of hydrogenation catalysts

But for methyl ethyl ketone plant tail gas H 2 There is no practical and effective method for the elimination of organic compounds in