A kind of butter inhibitor and its production method

Abstract

The invention discloses a butter inhibitor and a production method thereof. The butter inhibitor is composed of the following components by weight percentage: 30-40% of diethylhydroxylamine, 3-8% of sodium lignosulfonate, dihydrogen phosphate Ammonium 4‑5%, cellulose airgel microspheres 0.1‑1%, water balance. The butter inhibitor of the present invention can not only well inhibit the production of butter, but also has a good effect of dispersing and cleaning the already produced butter, ensures the long-term operation stability of the alkali washing tower, and provides convenience for the subsequent treatment of wastewater. High application value.

Description

technical field [0001] The invention relates to the technical field of ethylene production, in particular to a butter inhibitor and a production method thereof. Background technique [0002] In the process of cracking to produce ethylene, the cracked gas contains a large amount of H 2 S and CO 2 and other acid gases. In order to prevent downstream catalyst poisoning and ethylene pollution, ethylene production units are generally equipped with amine washing and alkali washing systems. The pyrolysis gas will produce polymers during the alkali cleaning process, and it is easy to form a yellow viscous state when it contacts with air, which is usually called "butter". The production of a large amount of butter will affect the effect of alkali cleaning and increase the consumption of alkali solution. In severe cases, it will cause unqualified alkali cleaning and affect downstream production. At the same time, a large amount of butter is easy to polymerize and foul to block the...

AI Technical Summary

Problems solved by technology

However, the inhibitor cannot remove the butter that has adhered to the equipment very well, clogging still exists in long-term operation, and it cannot solve the problem of difficult subsequent processing