Patent ID: 9090832
Filing Date: 2015-07-28
Classification: B01J,C10G

Abstract:
1. A process for synthesizing hydrocarbons starting from a feedstock containing synthesis gas, comprising: reacting said feedstock in a three-phase reaction section in which solid Fischer-Tropsch catalyst particles are maintained in suspension in a liquid phase by circulation of a gaseous phase from the bottom to the top of said reaction section, the catalyst suspension in the liquid phase forming a slurry, wherein the following stages are carried to control and maintain homogeneity of the concentration of said solid Fischer-Tropsch catalyst particles in said reaction section: (a) measuring the differential pressures ΔP (b) calculating a value corresponding to the difference between two consecutive pressure drops per meter divided by their mean (ΔG (c) injecting at least one additive comprising at least one organosilicon polymer at least at the bottom of said reaction section when at least one of the values calculated in the stage (b) is greater than or equal to 5%.