Process for synthetizing hydrocarbons in the presence of a catalyst comprising a group VIII metal supported on silica-alumina

• Main Authors: Roy-Auberger, Magalie, Courty, Philippe, Normand, Laurent, Zennaro, Roberto
• Format: Patent
• Language: English
• Published: 15.10.2002

The present invention relates to a process for synthetizing hydrocarbons from a mixture comprising CO-(CO )-H (i.e., a mixture comprising carbon monoxide and hydrogen and possibly carbon dioxide, known as synthesis gas). This process comprises using a catalyst comprising at least one group VIII metal, preferably cobalt, supported on a silica-alumina, prepared by co-precipitating and calcining at a temperature in the range from about 500° C. to about 1200° C. for at least 6 hours, so as to have a specific surface area of less than 260 m /g. A process is described for synthetizing hydrocarbons from a mixture comprising carbon monoxide and hydrogen in the presence of a catalyst comprising at least one group VIII metal supported on a silica-alumina prepared by co-precipitating and calcining at a temperature in the range from about 500° C. to about 1200° C. for at least 6 hours such that said silica-alumina has a specific surface area of less than 260 m/g. Said catalyst is used in a fixed bed or in suspension in a liquid phase of a three-phase reactor.