the effect of temperature on product distribution over fe-cu-k catalyst in fischer-tropsch synthesis

The iron-based catalyst was prepared by a microemulsion method. the composition of the final nanosized iron catalyst, in terms of the atomic ratio, contains 100fe/4cu/2k. the experimental techniques of xrd, bet, tem, and tpr were used to study the phase, structure, and morphology of the catalyst. fischer-tropsch synthesis (fts) reaction test was performed in a fixed bed reactor under pressure of 17 bar, temperature of 270-310 °c, h2 to co ratio of 1, and a gas hourly space velocity (ghsv) of 3 nl.hr-1.gcat-1. the temperature of the system as a key parameter was changed and its effect on the selectivity and reaction rate was analyzed. the results show that the rates of both reactions including fts and water-gas shift (wgs) raised by increasing temperature. for this condition, co conversion was also increased up to 87.6%.