Abstract
Ruthenium is known to be a good catalyst for producing high molecular weight paraffin wax from H2/CO at high pressure and low temperature, or making methane at low pressure and moderate temperature. However, the present study reveals that aromatic gasoline of high quality with good yield can be produced directly from synthesis gas under proper conditions in the presence of dual-functional ruthenium-containing ZSM-5 class zeolite catalysts. The nature of the product depends upon the dual-functionality of the catalyst system. The effects of method of catalyst preparation and ruthenium loading, as well as process variables such as temperature, pressure, space velocity and H2/CO ratio on the product distribution are discussed.
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