Catalyst for preparing low carbon alcohol by carbon monoxide hydrogenation and preparation method of the catalyst

Abstract

The invention discloses a catalyst for preparing low carbon alcohol by carbon monoxide hydrogenation. The catalyst takes SiO2 as a carrier and an immersion method is adopted for preparation. The constitution is as follows: CuO-Fe2O3-CeO2 / SiO2, and in mass percent, the CuO takes account for 2-25%, the Fe2O3 takes account for 2-25%, the CeO2 takes account for 1-30% and the carrier SiO2 takes the balance. The catalyst prepared by the method has the advantages that the conversion rate of the carbon monoxide is high, the selectivity of the low carbon alcohol is excellent, the materials are easy to obtain the preparation method is simple, and the cost is low.

Description

technical field [0001] The invention relates to a catalyst used for hydrogenation of carbon monoxide to prepare low-carbon alcohols and a preparation method thereof. Background technique [0002] Low carbon alcohol (C 2+ OH) can not only be used as an additive, liquid fuel and oil substitute for clean gasoline, but also as a chemical and chemical raw material. It is a very important basic raw material in the field of energy and chemical industry. prospect. In recent years, with the depletion of oil resources and the rising price of crude oil, synthetic gas (CO+H 2 ) to prepare low-carbon alcohols is receiving more and more attention. This is because, in the near term, syngas can be obtained from coal or natural gas, while in the long term, syngas can be obtained from renewable biomass resources. [0003] Catalysts with excellent performance are the key to the technology of producing low-carbon alcohols from syngas. Among the catalysts for the synthesis of low-carbon alc...

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Problems solved by technology

[0011] The purpose of the present invention is to solve the shortcomings of low-carbon alcohol synthesis catalysts in the prior art, such as low conversion rate of carbon monoxide and / or poor selectivity of low-carbon alcohols, complicated catalyst preparation, difficult repetition, high equipment requirements, etc. New catalyst with high carbon monoxide conversion rate and better low-carbon alcohol selectivity and simple and convenient preparation