High-activity iron-based low-temperature Fischer-Tropsch synthesis catalyst and preparation method thereof

Abstract

The invention belongs to the field of chemical catalysts, and specifically relates to a high-activity iron-based low-temperature Fischer-Tropsch synthesis catalyst and a preparation method thereof. The low-temperature Fischer-Tropsch synthesis iron-based catalyst is prepared by subjecting a skeleton iron material to low-temperature carbonization at a low temperature under a high carbon monoxide partial pressure and contains high-activity epsilon-Fe2C nano particles. The provided Fischer-Tropsch synthesis catalyst has an extremely high catalytic activity at a low temperature (less than 200 DEG C), wherein the catalytic activity is prominently higher than that of reported low-temperature iron-based Fischer-Tropsch synthesis catalysts. At the same time, the stability of the provided catalyst is high, and thus the catalyst can meet the production requirements.

Description

technical field

[0001] The invention belongs to the technical field of chemical catalysts, and in particular relates to a highly active iron-based low-temperature Fischer-Tropsch synthesis catalyst and a preparation method thereof. Background technique

[0002] Fischer-Tropsch synthesis is a method of converting carbon monoxide and hydrogen produced from coal, natural gas, and biomass into liquid hydrocarbons by catalysis. The synthesized liquid fuels are basically composed of straight-chain hydrocarbons and olefins, and have sulfur-free and nitrogen-free properties. , no metal, no aromatics and other advantages, it is a clean and environmentally friendly fuel oil and chemicals, so it is an important way to effectively solve the increasingly serious oil shortage and environmental pollution problems. One of the key factors in Fischer-Tropsch synthesis is to develop catalysts with high stability, good activity, low price and wide sources. For this reason, many petroleum compa...

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