Phthalocyanine iron cobalt sulphonate desulphurization catalyst and preparation method thereof

Abstract

The invention relates to an iron / cobalt phthalocyanine ammonium sulfonate desulfurization catalyst and a preparation method thereof, comprising steps of using phthalic anhydride as a raw material and fuming sulphuric acid as a sulfonating agent to prepare sulfonate, and then using ammonium molybdate as a catalyst, using sulfonate, cobalt chloride and ferric salt to synthesize Fe-Co phthalocyanine ammonium sulfonate, and then obtaining the inventive catalyst after drying and crushing the Fe-Co phthalocyanine ammonium sulfonate. Compared with currently used cobalt phthalocyanine catalyst, the iron / cobalt phthalocyanine ammonium sulfonate desulfurization catalyst has the advantages of high catalytic activity, capability of removing both organic sulphur and high sulphur, high desulfurization efficiency (more than 99%), low cost and simple processing technique, etc. The desulfurization catalyst can be widely applied to processes for desulfurizing and purifying various sulphur-bearing gases such as semi-water gas, natural gas, ammonia synthesis feed gas and coke oven gas, etc.

Description

technical field

[0001] The invention discloses a phthalocyanine iron cobalt sulfonate desulfurization catalyst and a preparation method thereof, relates to an oxidative desulfurization catalyst, which can be widely used in various sulfur-containing gases such as semi-water gas, natural gas, raw material gas for synthetic ammonia, coke oven gas, etc. The desulfurization purification process belongs to the technical field of fine chemical material preparation. Background technique

[0002] Wet oxidation desulfurization is a method of removing hydrogen sulfide and other sulfides in the gas in the liquid phase. It has been widely used in the desulfurization and purification process of various sulfur-containing gases such as natural gas, synthetic ammonia feed gas, coke oven gas, and coal gas. At present, there are many practical wet oxidative desulfurization methods, and the representative catalysts are cobalt phthalocyanines, including the use of cobalt phthalocyanine alone and...

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