Abstract
Dispersion of disposable iron as a catalyst precursor was investigated to improve the catalytic activity in the liquefaction of a subbituminous coal. Treatment in FeSO 4 solution under vacuum conditions resulted in the incorporation of 0.25 and 0.33 wt% iron into the coal samples. Despite the low level of loading, the liquefaction of iron-loaded coal showed a significant increase in total conversion and oil yield in the presence of a sulphur source. Also the hydrogen consumption decreased with use of an iron-loaded catalyst. These facts suggest that the impregnation of iron is a beneficial method of enhancing the catalytic activity and reducing the amount required for the liquefaction process.
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