National Institute of Clean-and-low-carbon Energy

China Energy Investment Corporation Limited

Kui Zhagn

Peng Wang

Qi Sun

Ping Miao

Yijun Lv

Zhuowu Men

Tao Wang

Bo Feng

Fengbo Zhang

Fuguo Jiang

Quan Lin

The present disclosure relates to the field of Fischer-Tropsch synthesis reaction catalysts, and discloses a pure phase &#x3b5;/&#x3b5;' iron carbide catalyst for Fischer-Tropsch synthesis reaction, a preparation method thereof and a Fischer-Tropsch synthesis process, wherein the method comprises the following steps: (1) subjecting the nanometer iron powder or a nano-powder iron compound capable of obtaining the nanometer iron powder through in-situ reduction and Hto a surface purification treatment at the temperature of 250-510&#xb0; C.; (2) pretreating the material obtained in the step (1) with Hand CO at the temperature of 80-180&#xb0; C., wherein the molar ratio of H/CO is 1.2-2.8:1; (3) carrying out carbide preparation with the material obtained in the step (2), Hand CO at the temperature of 180-280&#xb0; C., wherein the molar ratio of H/CO is 1.0-3.0:1. The preparation method has the advantages of simple and easily obtained raw materials, simple and convenient operation steps, being capable of preparing the 100% pure phase &#x3b5;/&#x3b5;&#x2032; iron carbide catalyst having lower selectivity of COand CHand higher selectivity of effective products.

Pure phase &#x3b5;/&#x3b5;' iron carbide catalyst for Fischer-Tropsch synthesis reaction, preparation method thereof and Fischer-Tropsch synthesis process

The present disclosure relates to the technical field of Fischer-Tropsch synthesis reaction catalysts, and discloses a supported &#x3b5;/&#x3b5;' iron carbide catalyst for Fischer-Tropsch synthesis reaction, preparation method thereof and Fischer-Tropsch synthesis process, wherein the method comprises the following steps: (1) dipping a catalyst carrier in a ferric salt aqueous solution, drying and roasting the dipped carrier to obtain a catalyst precursor; (2) subjecting the catalyst precursor and Hto a precursor reduction at the temperature of 300-550&#xb0; C.; (3) pretreating the material obtained in the step (2) with Hand CO at the temperature of 90-185&#xb0; C., wherein the molar ratio of H/CO is 1.2-2.8:1; (4) preparing carbide with the material obtained in the step (3), Hand CO at the temperature of 200-300&#xb0; C., wherein the molar ratio of H/CO is 1.0-3.2:1. The preparation method has the advantages of simple and easily obtained raw materials, simple and convenient operation steps, being capable of preparing the catalyst with 100% pure phase &#x3b5;/&#x3b5;&#x2032; iron carbide as the active phase, the catalyst has lower selectivity of COand CHand higher selectivity of effective products.

Supported &#x3b5;/&#x3b5;' iron carbide catalyst for Fischer-Tropsch synthesis reaction, preparation method thereof and Fischer-Tropsch synthesis process

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Beijing, China

Kui Zhagn