Regeneration method after deactivation of carbon disulfide hydrolysis catalyst

Abstract

The invention discloses a regeneration method after the deactivation of a carbon disulfide hydrolysis catalyst, i.e. a regeneration method after the deactivation of the carbon disulfide hydrolysis catalyst through taking activated carbon as a carrier. The regeneration method comprises the following steps of: washing the deactivated catalyst for 3-4 times with distilled water, drying for 3-4h at a temperature of 100-120 DEG C, then placing into an impregnant for ultrasonic impregnation for 30-60 minutes and finally drying for 3-4h at a temperature of 100-120 DEG C to obtain a regenerated catalyst. The regeneration method has the beneficial effects that the operation is simple, and the impregnation process is easy for operation; moreover, the impregnant is cheap, is easily obtained and easily realizes the industrialization; and the regenerated catalyst is high and is superior to a fresh catalyst in activity and can be widely applied to the removal of carbon disulfide in various gas sources.

Description

technical field

[0001] The invention relates to a regeneration method of a deactivated carbon disulfide hydrolysis catalyst, that is, a regeneration method of a deactivated hydrolysis catalyst after a hydrolysis catalyst with an activated carbon base as a carrier catalyzes the hydrolysis of carbon disulfide under low temperature conditions, and belongs to the field of catalyst regeneration. Background technique

[0002] In the gas produced from natural gas, coal, petroleum, etc., there will be carbon disulfide (CS 2 ), carbonyl sulfide (COS) and other organic sulfur and hydrogen sulfide (H 2 S) and other inorganic sulfur coexist. with H 2 S compared to CS 2 Its chemical properties are relatively stable, and it is difficult to remove it directly by conventional methods. At present, the most commonly used method is catalytic hydrolysis, which removes CS 2 The principle is that CS 2 React with water vapor in the gas on the catalyst to convert into H 2 S, then H 2 S is r...