C 4 olefin desulfurization absorbent and production method and use thereof

Abstract

The invention relates to an adsorbent for deep desulfurization of materials containing C4 olefin, a preparation method and application thereof. The adsorbent for desulfuriztion consists of reduced VIII transition metal, reduced IB transition metal and IIB transition metal oxide which activate sulfur-containing molecules, and adhesive taking alumina as a main component. The adsorbent can adsorb nearly all sulfur compounds in the materials containing C4 olefin to get the materials containing C4 olefin with sulfur content lower than 5ng / mu l.

Description

A kind of carbon tetraolefin desulfurization adsorbent and its preparation method and application technical field The invention relates to a carbon tetraolefin ultra-deep desulfurization adsorbent. The present invention also relates to a preparation method of the above-mentioned desulfurization adsorbent. The present invention also relates to the application of the above-mentioned desulfurization adsorbent. Background technique As a product of petroleum cracking and refinery gas fractionation, C4 olefins will introduce trace (10-200ppm level) sulfur-containing impurities during the production process, usually hydrogen sulfide, carbonyl sulfide, mercaptan, sulfide, disulfide and thiophene, etc. . These sulfur-containing impurities will lead to catalyst poisoning in the further reaction of C4 olefins (such as polymerization, hydration reaction, etc.). Therefore, before the further reaction of C4 olefins, the removal of sulfur-containing impurities in olefins has attract...