Heavy oil hydrogenating treatment catalyst and preparation method thereof

Abstract

The invention discloses a hydrogen chloride oxidation catalyst which takes an ReY molecular sieve as a carrier, and copper, alkali metals and rare earth metals are loaded on the molecular sieve, wherein, the load of copper oxide on the molecular sieve is 0.1-30wt%, the load of alkali metal oxides is 0-5wt%, and the load of rare earth metal oxides is 0-10wt%. The invention further discloses a preparation method of the catalyst. The preparation method adopts a mixed rolling-extrusion molding method for preparing the catalyst. The preparation method of the catalyst is simple in operation, and the loss rate of the copper and other active components is low, therefore, the capacity of hydrogen chloride oxidation reaction on the catalyst is improved, the service life of the catalyst is prolonged, the catalyst cost is lowered, the generation of heavy metal ion waste water is avoided, and the purpose of clean production of the catalyst is achieved. The catalyst of the invention can be used for a long time, and the hydrogen chloride oxidation reaction can be carried out at lower temperature.

Description

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AI Technical Summary

Benefits of technology

This patented technology describes an improvement over existing methods that involve loading different chemicals onto specific types of zeolite crystals or pores with certain properties such as size distribution (porosity) and pore volume. These modifications improve their effectiveness when reacting with gases like HCl gas under high temperatures while reducing losses due to lost materials from these processes. Overall this innovative approach provides technical benefits including increased efficiency, extended lifetimes, decreased costs, avoidance of contamination during manufacturing process, and enhanced purification capabilities.

Problems solved by technology

This patents describes various technical problem addressed in this patented text relating to efficient reuse of chiorochemistry reagents from washing residue after usage. Existing methods involve costly purification steps involving distillations/distilling off impurities like salts and acids produced due to incomplete decomposition of certain substances present within these products. Additionally, existing techniques have limitations on how much more useful chlorides may be recovered compared to their original content when they were dissolved in aqueous solutions.