Pure phase for Fischer Tropsch synthesis ε／ε’ Iron carbide catalyst, method for producing same, and Fischer Tropsch synthesis method

摘要

The present invention relates toPure phase for Fischer Tropsch synthesis ε／ε’ Iron carbide catalystManufacturing method and Fischer Tropsch synthesis methodManufacturing method isNano powder iron compounds capable of obtaining nanoiron powders by nanoiron powder or in situ reductionThe process of cleaning the surface at temperatures of 250 to 510(2) the material obtained in stepH2, the molar ratio of H2 to CO is 1.2 toPretreatment with CO at a temperature of 80 to 180(3) the material obtained in stepH2, the molar ratio of H2 to CO is from 1.0 to 3.0Manufacturing a carbide at a temperature of 180 to 280.This manufacturing method is easy to obtain raw material, convenient operation process, and 100% pure phase ε／ε’ The iron carbide catalyst can be produced, and this catalyst is low in CO2 and CH4 selectivity, and the selectivity of the effective product is high.