Desulphurization catalyst and preparation method and application thereof

Abstract

The invention discloses a desulphurization catalyst, and also discloses a preparation method of the desulphurization catalyst and the desulphurization catalyst prepared by the method, and an application of the desulphurization catalyst in desulphurization of sulfur-containing hydrocarbon oil. The desulphurization catalyst contains an aluminosilicate molecular sieve with a duodenary-ring pore-channel structure, rare earth oxide, titanium dioxide, a silicon oxide source, zinc oxide and active metal; the rare earth element content in the aluminosilicate molecular sieve with the duodenary-ring pore-channel structure is 0 mumg / g; and the characteristic peak of a tetragonal system of a rare earth-zirconiu composite oxide can be existed in a XRD spectrogram of the desulphurization catalyst. The desulphurization catalyst has better desulphurization activity and desulphurization stability.

Description

technical field

[0001] The invention relates to a desulfurization catalyst, a preparation method of the desulfurization catalyst, a desulfurization catalyst prepared by the method, and an application of the desulfurization catalyst in the desulfurization of sulfur-containing hydrocarbon oil. Background technique

[0002] The sulfur compounds contained in hydrocarbon oil are likely to cause sulfur emission pollution during use, especially the hydrocarbon oil used as vehicle fuel will amplify the impact of sulfur pollution with the movement of vehicles. For this reason, various countries have formulated strict standards to limit the sulfur content in hydrocarbon oil used as vehicle fuel.

[0003] At present, the methods for removing sulfur from hydrocarbon oil mainly include catalytic hydrodesulfurization, catalytic cracking desulfurization, oxidative desulfurization, solvent extraction desulfurization, biological desulfurization, adsorption desulfurization, membrane desulfuri...

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