Co-Zr catalyst for Fischer-Tropsch synthesis and its prepn and application

Abstract

A catalyst for Fischer-Tropsch synthesis consists of Co 10.0-80.0 wt%, zirconia 15.0-85.0 wt% and other metal oxide 0-5.0 wt%, and is prepared by the codeposition process or soaking process. The catalyst has excellent stability, high reduction degree and high metal dispersivity.

Description

[0001] Field: [0002] The invention belongs to a Fischer-Tropsch synthesis catalyst and a preparation method thereof, in particular to a cobalt-zirconium Fischer-Tropsch synthesis catalyst and a preparation method thereof Background technique: [0003] With the development of the national economy and the improvement of environmental awareness, the gap between the supply and demand of clean and high-quality diesel in my country is getting bigger and bigger. Since my country is a net importer of oil, and the cost of deep desulfurization and denitrification of refinery products is high, there are many problems in ensuring the supply of diesel oil by increasing refinery production capacity. At the same time, compared with developed countries, my country has problems such as a low utilization ratio of natural gas resources in the chemical industry and poor resource utilization efficiency. Converting natural gas into syngas and then converting it into high-quality fuel oil through...

AI Technical Summary

Problems solved by technology

However, since the supports of the above-mentioned several catalysts can chemically interact with metal cobalt to form cobalt aluminate (cobalt silicate, cobalt titanate) compounds that are difficult to reduce, when the catalyst is running in a slurry bed or in a fixed bed During long-term operation, the hydrothermal effect promotes the reaction between cobalt and the carrier, and the life of the catalyst is limited, resulting in high cost of catalyst per ton of oil, which restricts the industrial application of Fischer-Tropsch synthesis process