Fe/Cu/La/Si catalyst was prepared by co-precipitation, mixed with HZSM-5 zeolite and shaped to cylinders form by a binder for increasing the mechanical strength of bifunctional catalyst. Activity of the prepared Fe/HZSM5 in syngas conversion to hydrocarbons was studied in a fixed bed micro reactor. The influence of binders on the catalyst performance, physico-chemical properties and products selectivity of bifunctional Fe/HZSM-5 catalyst was studied under reaction condition, P ¼ 1.7 MPa, T ¼ 563 K, H2/CO ¼ 1 and GHSV ¼ 5.04 nl h1 g1 Fe. The results showed that the catalyst activity for FischereTropsch synthesis and water-gas-shift reactions was enhanced by the alumina binders in comparison to the silica binders and also secondary reactions in the presence of alumina were occurred rather than silica.

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