Abstract: Process to optimize the yield of gas oils from a Fischer-Tropsch derived feed by performing the following steps: (a) performing a hydroconversion/hydroisomerisation step on part of the Fischer-Tropsch derived feed; (b) performing a hydroconversion/hydroisomerisation step on another part of the Fischer-Tropsch feed at a conversion greater than the conversion in step (a); and (c) isolating by means of distillation a gas oil fraction from the two reaction products obtained in steps (a) and (b).

Abstract: Process to optimize the yield of base oils from a Fischer-Tropsch derived feed by performing the following steps (a) performing a hydroconversion/hydroisomerization step on part of the Fischer-Tropsch derived feed; (b) performing a hydroconversion/hydroisomerization step on another part of the Fischer-Tropsch feed at a conversion greater than the conversion in step (a); and (c) isolating by means of distillation a fraction boiling in the base oil range from the two reaction products obtained in steps (a) and (b) and performing a pour point reducing step on said fraction.

Abstract: A process is provided to make ethylene and propylene from a carbonaceous feedstock. The process comprises preparing a gaseous mixture of carbon monoxide and hydrogen from a feedstock. A Fischer Tropsch synthesis is then performed on the gaseous mixture to obtain a Fischer Tropsch product along with unconverted carbon monoxide and hydrogen. The Fischer Tropsch product in admixture with the unconverted carbon monoxide and hydrogen from the previous step is then subjected to terminal cracking to form ethylene and propylene.

Abstract: A process for hydrocracking and hydro-isomerisation of a paraffinic feedstock obtained by Fischer-Tropsch hydrocarbon synthesis comprising at least 50 wt % of components boiling above 370° C. to obtain a hydro-isomerised feedstock, the process comprising contacting the feedstock, in the presence of hydrogen, at elevated temperature and pressure with a catalyst comprising a hydrogenating compound supported on a carrier comprising amorphous silica-alumina, the carrier having a pore volume of at least 0.8 ml/g, wherein at most 40% of the pore volume comes from pores having a pore diameter above 35 nm and wherein at most 20% of the pore volume comes from pores having a pore diameter below 50 ? and above 37 ?, the carrier having a median pore diameter of at least 85 ?, wherein the product of (surface area per pore volume) and (median pore diameter as measured by mercury intrusion porosimetry) of the carrier is at least 34,000 ?·m2/ml.

Abstract: The invention relates to a shaped catalyst or catalyst precursor containing a catalytically active component or a precursor therefore, the component selected from elements of Group VIII of the Periodic Table of the Elements, supported on a carrier, which catalyst or catalyst precursor is an elongated shaped particle having three protrusions each extending from and attached to a central position, wherein the central position is aligned along the longitudinal axis of the particle, the cross-section of the particle occupying the space encompassed by the outer edges of six circles around a central circle, each of the six circles touching two neighboring circles while three alternating circles are equidistant to the central circle and may be attached to the central circle, minus the space occupied by the three remaining outer circles and including the six interstitial regions.

Abstract: A method of accommodating a reduction in production capacity of one or more reactors in a multi-reactor assembly adapted for the production of hydrocarbon products from syngas, the syngas being provided by a syngas manufacturing facility and provided to an entry stream system providing syngas to each of the reactors, and having an exit stream system taking at least hydrocarbon products from the reactors, wherein the method comprises the steps of: redistributing the syngas from the one or more said reactors to one or more other reactors, and increasing the temperature in the said one or more other reactors to at least partially take over the reduction in production capacity of the one or more reactors.

Abstract: A hydrogenation catalyst particularly suitable for hydrogenating oxygenates in a hydrogenation unit of a Fischer-Tropsch plant is disclosed. A preferred embodiment comprises more than 5% and less than 20% nickel based on a wide pore alumina support. The catalyst successfully hydrogenates oxygenates which otherwise tend to poison a catalyst in a hydroconversion unit downstream. Moreover, the temperature at which the unwanted hydrogenolysis of long chain paraffins to methane occurs is higher for one catalyst disclosed herein than a comparable known catalyst. This allows the hydrogenation plant to operate at a higher temperature.

Abstract: The present invention relates to a method of preparing a catalyst support or a supported metal catalyst, the method comprising: (a) admixing a porous refractory oxide with a water soluble zirconium precursor in an alkaline solution, and if a supported metal catalyst is prepared, with a precursor of the metal, yielding a slurry, (b) drying the slurry, and (c) calcining; thus yielding a catalyst support or supported metal catalyst having an increased hydrothermal strength.

Abstract: Process to optimize the yield of base oils from a Fischer-Tropsch derived feed by performing the following steps (a) performing a hydroconversion/hydroisomerisation step on part of the Fischer-Tropsch derived feed; (b) performing a hydro-conversion/hydroisomerisation step on another part of the Fischer-Tropsch feed at a conversion greater than the conversion in step (a); and (c) isolating by means of distillation a fraction boiling in the base oil range from the two reaction products obtained in steps (a) and (b) and performing a pour point reducing step on said fraction.

Abstract: The present invention provides a method to start a steady state process for producing normally gaseous, normally liquid and optionally normally solid hydrocarbons from synthesis gas, which method comprises the steps of: (i) providing an activated catalyst in tubes of a fixed bed reactor, preferably a multitubular fixed bed reactor, the catalyst being suitable to convert synthesis gas to normally gaseous, normally liquid and optionally normally solid hydrocarbons; (ii) contacting the activated catalyst with a liquid to obtain a wetted activated catalyst; (iii) contacting the wetted activated catalyst with synthesis gas and catalytically converting the synthesis gas at an elevated temperature and pressure to obtain the normally gaseous, normally liquid and optionally normally solid hydrocarbons.

Abstract: Process to prepare an iso-paraffinic product having a carbon range of Cx to Cy and a iso-paraffinic product having a carbon range of Cn to Cm from a Fischer-Tropsch derived feed by performing the following steps, (a) obtaining from the Fischer-Tropsch derived feed at least two different compositions (i) and (ii), which composition (i) has a greater fraction of compounds in the carbon range of C2n to C2m than composition (ii) and composition (ii) has a greater content of C2x to C2y than composition (i); (b) performing separately a hydroconversion/hydroisomerisation step on feed compositions (i) and (ii) and isolating from the thus obtained effluents the iso-paraffinic product having a carbon range of Cx to Cy and the iso-paraffinic product having a carbon range of Cn to Cm.

Abstract: Process to optimize the yield of gas oils from a Fischer-Tropsch derived feed by performing the following steps: (a) performing a hydroconversion/hydroisomerisation step on part of the Fischer-Tropsch derived feed; (b) performing a hydroconversion/hydroisomerisation step on another part of the Fischer-Tropsch feed at a conversion greater than the conversion in step (a); and (c) isolating by means of distillation a gas oil fraction from the two reaction products obtained in steps (a) and (b).

Abstract: The invention relates to a process to prepare a microcrystalline wax and a middle distillate fuel by (a) hydrocracking/hydroisomerizing a Fischer-Tropsch product, wherein the weight ratio of compounds having at least 60 or more carbon atoms and compounds having at least 30 carbon atoms in the Fischer-Tropsch product is at least 0.2 and wherein at least 30 wt % of compounds in the Fischer-Tropsch product have at least 30 carbon atoms, (b) performing one or more distillate separations on the effluent of step (a) to obtain a middle distillate fuel fraction and a microcrystalline wax having an initial boiling point of between 500 and 600° C.

Abstract: Process to make ethylene and/or propylene from a carbonaceous feedstock by performing the following steps, (aa) preparing a mixture of carbon monoxide and hydrogen from said feedstock, (bb) performing a Fischer-Tropsch synthesis step using the gaseous mixture obtained in step (aa) to obtain a Fischer-Tropsch product, in admixture with the unconverted carbon monoxide and hydrogen, (cc) performing a thermal cracking step on the Fischer-Tropsch product in admixture with the unconverted carbon monoxide and hydrogen of step (bb).

Abstract: A process to prepare a waxy Raffinate product by performing the following steps: (a) subjecting a Fischer-Tropsch derived product having a weight ratio of compounds boiling above 540° C. and compounds boiling between 370 and 540° C. of greater than 2 to a hydroconversion step and (b) fractionating the effluent of step (a) to obtain products boiling in the fuels range and a waxy raffinate product boiling between 350 and 600° C.

Abstract: A process for the preparation of detergents containing a relatively low amount of isoparaffins, involving separating a hydrocarbonaceous product stream from a Fischer-Tropsch process using a cobalt based catalyst and producing normally liquid and normally solid hydrocarbons into a light fraction boiling below an intermediate fraction having detergent hydrocarbons, an intermediate boiling fraction having detergent hydrocarbons and a heavy fraction boiling above the intermediate boiling fraction having detergent hydrocarbons, followed by conversion of the detergent hydrocarbons present in the intermediate boiling fraction into detergents, the Fischer-Tropsch process being carried out at a relatively high pressure.

Abstract: The invention relates to a process to prepare a microcrystalline wax and a middle distillate fuel by (a) hydrocracking/hydroisomerizing a Fischer-Tropsch product, wherein the weight ratio of compounds having at least 60 or more carbon atoms and compounds having at least 30 carbon atoms in the Fischer-Tropsch product is at least 0.2 and wherein at least 30 wt % of compounds in the Fischer-Tropsch product have at least 30 carbon atoms, (b) performing one or more distillate separations on the effluent of step (a) to obtain a middle distillate fuel fraction and a microcrystalline wax having an initial boiling point of between 500 and 600° C.

Abstract: The invention relates to a shaped catalyst or catalyst precursor containing a catalytically active component or a precursor therefore, the component selected from elements of Group VIII of the Periodic Table of the Elements, supported on a carrier, which catalyst or catalyst precursor is an elongated shaped particle having three protrusions each extending from and attached to a central position, wherein the central position is aligned along the longitudinal axis of the particle, the cross-section of the particle occupying the space encompassed by the outer edges of six circles around a central circle, each of the six circles touching two neighboring circles while three alternating circles are equidistant to the central circle and may be attached to the central circle, minus the space occupied by the three remaining outer circles and including the six interstitial regions.

Abstract: Process for the preparation of a highly linear alcohol composition is provided comprising the steps of: (a) reacting carbon monoxide with hydrogen under Fischer-Tropsch reaction conditions in the presence of a Fischer-Tropsch catalyst comprising cobalt; (b) separating from the product of step (a) at least one hydrocarbon fraction comprising between 10 and 50% by weight of olefins containing 6 or more carbon atoms; (c) contacting one or more of the hydrocarbon fractions obtained in step (b) with carbon monoxide and hydrogen under hydroformylation conditions in the presence of a hydroformylation catalyst based on a source of cobalt and one or more alkyl phosphines; and (d) recovering the alcohol composition.

Abstract: A process for the preparation of one or more hydrocarbon fuel products boiling in the kero/diesel range from a stream of hydrocarbons produced in a Fischer-Tropsch process, in which process synthesis gas is converted into liquid hydrocarbons, at least a part of the hydrocarbons boiling above the kero/diesel range, having the following steps: (1) hydrocracking/hydroisomerizing at least a part of the Fischer-Tropsch hydrocarbons stream at a conversion per pass of at most 80 wt % of the material boiling above 370° C. into material boiling below 370° C.; (2) separating the product stream obtained in step (1) into one or more light fractions boiling below the kero/diesel boiling range, one or more fractions boiling in the kero/diesel boiling range and a heavy fraction boiling above the kero/diesel boiling range; (3) hydrocracking/hydroisomerizing the major part of the heavy fraction obtained in step (2) at a conversion per pass of at most 80 wt % of the material boiling above 370° C.