Fischer-tropsch process using a catalyst based on a metal of group VIIIB and an oxides support comprising alumina, silica and phosphorus

摘要

The present invention describes a Fischer-Tropsch process for synthesis of hydrocarbons comprising contacting a charge comprising synthesis gas under Fischer-Tropsch synthesis operating conditions with at least one catalyst containing an active phase comprising at least one metal of group VIIIB selected from cobalt, nickel, ruthenium and iron deposited on an oxides support comprising alumina, silica and phosphorus, said oxides support not containing any spinel phase. The catalyst has an improved hydrothermal and mechanical resistance in a Fischer-Tropsch process while improving its catalytic performances.

主权项

1. A Fischer-Tropsch process for the synthesis of hydrocarbons comprising contacting a charge comprising synthesis gas with at least one catalyst under a total pressure of between 0.1 and 15 MPa at a temperature of between 150 and 350° C. at an hourly space velocity of between 100 and 20000 volumes of synthesis gas per volume of catalyst and per hour and with an H2/CO molar ratio in the synthesis gas of between 0.5 and 4, said catalyst containing an active phase comprising at least one metal of group VIIIB that is cobalt, nickel, ruthenium or iron, and an oxide support comprising a phosphorus-containing silica-alumina comprising a silica content of 10% by weight to 30% by weight with respect to the total weight of the support or a phosphorus-containing silica-containing alumina comprising a silica content of 0.5% by weight to 10% by weight with respect to the total weight of the support said oxides support not containing any spinel phase.