Abstract:
A process for preparing a hydrocarbon conversion catalyst that comprises a specially made silica-alumina composition and a metal or metal compound selected from Group VIB and Group VIII metals. The silica-alumina composition is made by preparing an aqueous mixture containing aluminum sulfate followed by adding alkali metal aluminate to the mixture to enhance the pH to within specified range and then adding aluminum sulfate to the mixture to lower the pH. Then alkali metal silicate is added followed by several other pH swings to provide a mixture containing silica-alumina. The resulting mixture is treated with an alkaline solution to provide a precipitate solid that is recovered to obtain a silica-alumina composition containing of from 30 to 70% wt silica and of from 70 to 30% wt of alumina.
Abstract:
The present invention provides a Fischer-Tropsch gasoil fraction having an initial boiling point of at least 160° C. and a final boiling point of at most 215° C. In another aspect the present invention provides a composition and the use of a Fischer-Tropsch gasoil fraction according to the invention.
Abstract:
Process for preparing a hydrotreating catalyst comprising of from 5 wt % to 50 wt % of molybdenum, of from 0.5 wt % to 20 wt % of cobalt, and of from 0 to 5 wt % of phosphorus, all based on total dry weight of catalyst, which process comprises (a) treating a nickel containing carrier with molybdenum, cobalt and of from 1 to 60% wt of gluconic acid, based on weight of carrier, and optionally phosphorus, (b) optionally drying the treated carrier at a temperature of from 40 to 200° C., and (c) calcining the treated and optionally dried carrier at a temperature of from 200 to 650° C. to obtain the calcined treated carrier.
Abstract:
Process for preparing a hydrotreating catalyst comprising of from 5 wt % to 50 wt % of molybdenum, of from 0.5 wt % to 20 wt % of nickel and of from 0 to 5 wt % of phosphorus, all based on total dry weight of catalyst, which process comprises (a) treating alumina carrier with molybdenum and nickel and of from 1 to 60% wt of gluconic acid, based on weight of carrier, and op tionally phosphorus, (b) optionally drying the treated carrier at a temperature of from 40 to 200° C., and (c) calcining the treated and optionally dried carrier at a temperature of from 200 to 650° C. to obtain the calcined treated carrier.
Abstract:
The present invention provides a Fischer-Tropsch gasoil fraction having an initial boiling point of at least 165° C. and a final boiling point of at most 220° C. In another aspect the present invention provides a cleaning composition and the use of a Fischer-Tropsch gasoil fraction according to the invention.
Abstract:
A process for preparing a hydrocarbon conversion catalyst that comprises a specially made silica-alumina composition and a metal or metal compound selected from Group VIB and Group VIII metals. The silica-alumina composition is made by preparing an aqueous mixture containing aluminum sulfate followed by adding alkali metal aluminate to the mixture to inhance the pH to within specified range and then adding aluminum sulfate to the mixture to lower the pH. Then alkali metal silicate is added followed by several other pH swings to provide a mixture containing silica-alumina. The resulting mixture is treated with an alkaline solution to provide a precipitate solid that is recovered to obtain a silica-alumina composition containing of from 30 to 70% wt silica and of from 70 to 30% wt of alumina.
Abstract:
The present invention provides a Fischer-Tropsch gasoil fraction having: (a) an initial boiling point of at least 250° C.; (b) a final boiling point of at most 350° C.; (c) a kinematic viscosity at 25° C. according to ASTM D445 of from 4.0 to 4.6 cSt; and (d) a flash point according to ASTM D93 of at least 117° C. In another aspect the present invention provides a composition and the use of a Fischer-Tropsch gasoil fraction according to the invention.
Abstract:
The present invention provides a Fischer-Tropsch gasoil fraction having an initial boiling point of at least 200° C. and a final boiling point of at most 300° C. In another aspect the present invention provides a composition and the use of a Fisc- her-Tropsch gasoil fraction according to the invention.
Abstract:
The present invention relates to a process for the rejuvenation of a spent molecular sieve, comprising at least the steps of: (a) treating the spent molecular sieve catalyst with an aqueous solution comprising at least one acid to provide a rejuvenated molecular sieve catalyst and a spent aqueous solution; (b) removing spent aqueous solution from the rejuvenated molecular sieve catalyst to provide the rejuvenated molecular sieve catalyst.
Abstract:
The present invention provides a Fischer-Tropsch gasoil fraction having: (a) an initial boiling point of at least 220° C.; (b) a final boiling point of at most 360° C.; (c) a kinematic viscosity at 25° C. according to ASTM D445 of from 3.8 to 4.4 cSt; and (d) of a flash point according to ASTM D93 of at least 100° C. In another aspect the present invention provides a composition and the use of a Fischer-Tropsch gasoil fraction according to the invention.