Preparation method of transition metal sulfide catalytic material and catalytic application thereof

Abstract

The invention belongs to the technical fields of industrial catalysis and fossil energy conversion, and discloses a preparation method of a transition metal sulfide catalytic material and catalytic application thereof. The method comprises the following steps: using soluble thio transition metal salt as a metal source, obtaining an organic precursor containing thio metal salt by reacting with an alkyl surfactant or a template agent, carrying out in situ or ex situ temperature-programmed pyrolysis on the precursor, and obtaining an unsupported transition metal sulfide catalyst with high hydrogenation activity and high specific surface area; loading the organic precursor of the thio metal salts to a carrier by an impregnation method, and preparing a supported transition metal sulfide catalyst with high activity by thermal decomposition. The preparation method used has advantage of unnecessary sulfurizing pretreatment, simple process, energy saving and environmental protection. The unsupported catalyst and the supported catalyst are prepared by hydrogenation, deep processing of shale oil, selective hydrocracking of C9 hydrogen by quinoline and the like, and show excellent catalytic properties.

Description

technical field [0001] The invention belongs to the technical field of industrial catalysis and fossil energy conversion, and relates to a preparation method of an amorphous transition metal sulfide catalyst with high specific surface area and high catalytic activity; the method can be widely used in crude benzene hydrorefining and ethylene cracking C 9 Hydrogenation, deep processing of shale oil, and selective hydrogenation of quinoline. Specifically, the non-supported and supported catalysts of transition metal sulfides were prepared by pyrolysis of thiotransition metal organic salts, and the transition metal sulfide catalysts were obtained with high specific surface area, and were used in crude benzene hydrorefining, ethylene cracking C 9 Hydrogenation, deep processing of shale oil, and selective hydrogenation of quinoline show excellent catalytic performance. Background technique [0002] What are the traditional hydrotreating catalysts used in industry? Group B metal...

AI Technical Summary

Problems solved by technology

[0005] In summary, the improvement of the preparation method of the supported transition metal sulfide catalyst is basically an improvement of the presulfidation process of the catalyst, and does not fundamentally change the preparation method of the catalyst. The methods of obtaining metal sulfides all have technical difficulties in varying degrees, such as: low degree of sulfidation, low experimental repeatability, and can not achieve stoichiometric controllability, serious pollution in the production process

Moreover, due to the interaction between Mo, W, Co, and Ni oxides and the surface of the support, the activity of the catalyst is affected.

Non-load type NEBULA? Although the catalyst has made a breakthrough in catalyst composition and activity, it cannot be widely used due to its special solid surface reaction and molding technology.

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