Cobalt-based catalyst reduction processing method used for Fischer-Tropsch synthesis

Abstract

The invention discloses a cobalt-based catalyst reduction processing method used for Fischer-Tropsch synthesis, which is characterized in that 1-3% of CO-containing hydrogen is taken as a reducing gas for processing a roasted cobalt-based catalyst, reduction condition is characterized in that temperature is between 190 DEG C and 250 DEG C, pressure is between 0.1-3.0MPa, time is 16-48 hours, and air speed is 1000-10000kg / hL. According to the invention, the Co-based catalyst is reduced by CO-containing hydrogen at low temperature through pressurization, activity, stability and selectivity on heavy hydrocarbon of the catalyst are increased, the catalyst is used for heavy hydrocarbon prepared by synthetic gas, CO conversion rate can reach 40-60%, and the method has good industrial application prospect.

Description

technical field

[0001] The invention relates to the field of coal chemical industry, in particular to a reduction treatment method of a cobalt-based catalyst used for Fischer-Tropsch synthesis. Background technique

[0002] With the depletion of world oil resources, future energy consumption will be dominated by coal and natural gas. In view of my country's national conditions of rich coal, little oil, and poor gas, the development of coal chemical technologies such as coal-to-oil and coal-to-gas is very important and has market prospects. This is also one of the important ways to ensure my country's energy security.

[0003] Coal gasification to synthesis gas (the main components are CO, H 2 , with a small amount of CO 2 , N 2 , O 2 Or sulfide) technology development has been relatively mature. The production of heavy hydrocarbons from syngas refers to the reaction of syngas to generate heavy hydrocarbons (C 5 ~C 50 ) process, also known as Fischer-Tropsch synthesis....

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