Sintered catalyst for producing low-carbon olefins from syngas and preparation method thereof

Abstract

The invention relates to a sintered catalyst for producing low-carbon olefins from syngas and a preparation method thereof, which mainly solves the low conversion rate of CO and low selectivity of low-carbon olefins in the reaction of producing low-carbon olefins from syngas in the prior art. The problem of poor strength and poor thermal stability under certain conditions. The catalyst used in the present invention includes the following components in parts by weight: a) 10-70 parts of iron element or its oxide; b) 1-10 parts of cobalt element or its oxide; c) 5-20 parts selected from calcium and at least one element of magnesium or its oxide; d) 5-20 parts of at least one element selected from silicon and zirconium or its oxide; e) 15-45 parts of titanium or its oxide; f) 1 The technical scheme of ~10 indium elements or their oxides solves this problem well and can be used in the industrial production of low-carbon olefins from syngas.

Description

technical field [0001] The invention relates to a sintered catalyst for producing low-carbon olefins from syngas and a preparation method thereof. Background technique [0002] Low-carbon olefins refer to olefins with carbon atoms less than or equal to 4. Low-carbon olefins represented by ethylene and propylene are very important basic organic chemical raw materials. With the rapid growth of my country's economy, the supply of low-carbon olefins has been in short supply for a long time. At present, the production of low-carbon olefins mainly adopts the petrochemical route of cracking light hydrocarbons (ethane, naphtha, light diesel oil). Due to the increasing shortage of global oil resources and the long-term high price of crude oil, the development of low-carbon olefins industry only relies on oil The tubular cracking furnace process with light hydrocarbons as raw materials will encounter more and more raw material problems, and the production process and raw materials of...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is the problem of low CO conversion rate and low selectivity of low-carbon olefins in the product in the Fischer-Tropsch synthesis process of low-carbon olefins in the prior art, and the problem of poor strength and poor thermal stability of the catalyst under the conditions of use. , to provide a new sintered synthesis gas-to-low-carbon olefins catalyst, which has the advantages of high CO conversion rate and high selectivity of low-carbon olefins in the product when it is used in the reaction of fixed-bed synthesis of low-carbon olefins

Images