A kind of alkylation gasoline catalyst and preparation method thereof

Abstract

The invention relates to an alkylated gasoline catalyst. The alkylated gasoline catalyst is characterized in that Fe2O3-TiO2 of a mesoporous structure serves as a carrier, SO4<2-> serves as a main active component, and Pd serves as an auxiliary active component. The content of the Pd in the catalyst is 0.2wt% to 1.5wt% of the total weight of the catalyst, and the content of the SO4<2-> is 15wt% to 45wt% of the total weight of the catalyst. The invention further relates to a preparing method of the catalyst. According to the catalyst, a mixture of polyethylene glycol-2000 and F127 serves as a template agent, the catalyst carrier of the mesoporous structure is prepared with a supercritical technology, and meanwhile the active components are loaded on the catalyst carrier, so that the components of the catalyst are firmly combined into a whole, high catalytic activity is achieved, reaction stability is good, and the active components are not prone to being lost; the catalyst is prepared with the supercritical technology, the loading quantity of the active components on the carrier can be increased, and the active components are evenly distributed on the carrier.

Description

technical field [0001] The invention relates to an alkylation gasoline catalyst and a preparation method thereof. Background technique [0002] With the rapid development of the automobile industry and the increasingly stringent emission standards of automobile exhaust, the demand for clean gasoline production is increasing all over the world. from isobutane and C 4 Alkylated gasoline produced by olefin alkylation has high octane number, low sensitivity, good anti-knock performance, no olefins and aromatics, low sulfur content, low vapor pressure, high combustion calorific value, complete combustion, clean, Outstanding advantages such as no pollution to the environment. At present, concentrated sulfuric acid or hydrofluoric acid are used as catalysts in the industrial production of alkylated gasoline. Although these catalysts have high activity, good selectivity, and stable activity, they have high manufacturing costs, large acid consumption, and equipment A series of pro...

AI Technical Summary

Problems solved by technology

The catalyst has high butene conversion and trimethylpentane selectivity, but its reaction stability is not disclosed, and its olefin conversion and TMP yield need to be further improved to meet the needs of actual industrialization

[0006] In addition, the solid acid catalysts in the prior art often have problems such as low catalytic activity, poor reaction stability, and easy loss of active components, which need to be improved.