| Patent Number |
Title Of Patent |
Date Issued |
| H1849 |
Fischer-Tropsch products as fuel for fuel cells |
May 2, 2000 |
| Fischer-Tropsch fuels having low levels of sulphur and other impurities are applied as fuels for use in fuel cell systems. |
| H1818 |
Detergent and cleaning compositions derived from new detergent alcohols |
November 2, 1999 |
| Detergent and/or cleaning compositions incorporating a wide range of surfactants derivable from new C.sub.9 -C.sub.15 detergent alcohols obtainable from Sasol. |
| 7612118 |
Method of quenching a slurry |
November 3, 2009 |
| A method is provided for quenching a slurry in a slurry vessel of slurry phase apparatus which comprises a gas distributor arranged to inject a gas into the slurry at a predetermined level, and an apertured solid particles support below the level at which the gas distributor is dispo |
| 7598295 |
Use of a source of chromium with a precipitated catalyst in a Fischer-Tropsch reaction |
October 6, 2009 |
| According to the present invention there is provided the use of a source of chromium in combination with a precipitated iron catalyst in a high temperature Fischer-Tropsch process to convert CO and H.sub.2 to hydrocarbons and possibly oxygenates thereof. In the process CO and H.sub.2 |
| 7592289 |
Process for activating cobalt catalysts |
September 22, 2009 |
| A particulate pre-reduction cobalt supported Fischer-Tropsch synthesis catalyst precursor which comprises a catalyst support impregnated with cobalt, is treated with a pure hydrogen reducing gas, at a first specific feed gas space velocity, SV1, and at a first heating rate, HR1, to obtai |
| 7575730 |
Method of introducing or reintroducing a gas into a slurry vessel |
August 18, 2009 |
| A method is provided for introducing or reintroducing a gas into a slurry vessel holding a slurry comprising a liquid and solid particles and having a gas distributor for injecting a gas into the slurry, where the gas distributor includes a sparger device comprising an apertured sparger |
| 7554001 |
Trimerisation and oligomerisation of olefins using a chromium based catalyst |
June 30, 2009 |
| The invention provides a mixed heteroatomic ligand for an oligomerization of olefins catalyst, which ligand includes at least three heteroatoms, of which at least one heteroatom is sulfur and at least two heteroatoms are not the same. The invention also provides a multidentate mixed |
| 7547657 |
Heat treated Fischer-Tropsch catalyst particles |
June 16, 2009 |
| The invention provides heat treated self-supported precipitated .alpha.-Fe.sub.2O.sub.3-based Fischer-Tropsch catalyst particles. The catalyst particles are breakage resistant, thus inhibiting the formation of catalyst fines in the Fischer-Tropsch reactor, thereby maintaining the per |
| 7525009 |
Trimerisation of olefins |
April 28, 2009 |
| The invention describes a process for trimerisation olefins, which process includes the step of contacting an olefinic feedstream with a catalyst system which includes a transition metal compound and a heteroatomic ligand and wherein the trimer is an olefin and wherein the heteroatomic |
| 7524787 |
Producing supported cobalt catalysts for the Fisher-Tropsch synthesis |
April 28, 2009 |
| A process for producing a supported Fischer-Tropsch catalyst includes treating, in an activation stage (12), a particulate pre-reduction cobalt nitrate-based supported Fischer-Tropsch synthesis catalyst precursor containing reducible cobalt oxides, with hydrogen as a reducing gas in |
| 7511183 |
Tetramerization of olefins |
March 31, 2009 |
| The invention describes a process for tetramerisation of olefins wherein the product stream of the process contains more than 30% of the tetramer olefin. The process includes the step of contacting an olefinic feedstream with a catalyst system containing a transition metal compound a |
| 7488760 |
Process for separating a catalyst from a liquid |
February 10, 2009 |
| Gaseous reactants (18) are fed into a slurry bed (14) of solid catalyst particles in a liquid. The reactants react as they pass upwardly through the bed, thereby forming liquid and gaseous products. In a primary filtration stage (30), the liquid product passes through a filtering med |
| 7465846 |
Extraction of oxygenates from a hydrocarbon stream |
December 16, 2008 |
| This invention relates to a commercially viable process for extracting oxygenates from a hydrocarbon stream, typically a fraction of the condensation product of a Fischer-Tropsch reaction, while preserving the olefin content of the condensation product. The oxygenate extraction proce |
| 7459485 |
Hydrocarbon synthesis process using a hydrocarbon synthesis catalyst and an acidic catalyst |
December 2, 2008 |
| This invention relates to a hydrocarbon synthesis process comprising the conversion of a feed of H.sub.2 and at least one carbon oxide to hydrocarbons containing at least 30% on a mass basis hydrocarbons with five or more carbon atoms. The conversion is carried out in the presence of |
| 7439274 |
Process for producing liquid, and, optionally, gaseous products from gaseous reactants |
October 21, 2008 |
| A process (10) for producing liquid and, optionally, gaseous products from gaseous reactants includes feeding at a low level gaseous reactants (14) and, optionally, a portion of a recycle gas stream into a vertically extending slurry bed (70) of solid particles suspended in a suspension |
| 7432310 |
Process for synthesising hydrocarbons |
October 7, 2008 |
| A process (10) for synthesising hydrocarbons includes feeding a gaseous feedstock (18) comprising hydrogen and carbon monoxide, into a first Fischer-Tropsch reaction stage (12) which is a three-phase low temperature catalytic Fischer-Tropsch reaction stage, and allowing the hydrogen |
| 7390397 |
Low sulphur diesel fuel and aviation turbine fuel |
June 24, 2008 |
| A process for the production of a synthetic low sulphur diesel fuel and a low soot emission aviation fuel is disclosed. The process includes fractionation of a Low Temperature Fischer-Tropsch feedstock into a light kerosene fraction and a heaver diesel fraction in a volumetric ratio of |
| 7375055 |
Cobalt catalysts |
May 20, 2008 |
| A process for preparing a cobalt based catalyst precursor includes in a first support impregnation/drying/calcination stage, impregnating a particulate porous catalyst support with a cobalt salt, partially drying the impregnated support, and calcining the partially dried impregnated |
| 7365040 |
Catalysts |
April 29, 2008 |
| A process for preparing a cobalt-based Fischer-Tropsch synthesis catalyst includes introducing a soluble modifying component precursor of the formula Mc(OR).sub.x, where Mc is a modifying component selected from the group comprising Si, Ti, Cu, Zn, Zr, Mn, Ba, Ni, Na, K, Ca, Sn, Cr, Fe, |
| 7361623 |
Trimerisation and oligomerisation of olefins using a chromium based catalyst |
April 22, 2008 |
| The invention provides a mixed heteroatomic ligand for an oligomerisation of olefins catalyst, which ligand includes at least three heteroatoms, of which at least one heteroatom is nitrogen and at least two heteroatoms are not the same. The invention also provides a multidentate mixed |
| 7323524 |
Tandem tetramerisation-polymerisation of olefins |
January 29, 2008 |
| The invention provides a process for polymerising olefins to branched polyolefins in the presence of a polymerisation catalyst and a cocatalyst, wherein the cocatalyst produces 1-octene in a selectivity greater than 30%. |
| 7300904 |
Trimerisation and oligomerisation of olefins using a chromium based catalyst |
November 27, 2007 |
| The invention provides a mixed heteroatomic ligand for an oligomerisation of olefins catalyst, which ligand includes at least three heteroatoms, of which at least one heteroatom is sulfur and at least 2 heteroatoms are not the same. The invention also provides a multidentate mixed he |
| 7297832 |
Tetramerization of olefins |
November 20, 2007 |
| The invention describes a process for tetramerisation of olefins wherein the product stream of the process contains more than 30% of the tetramer olefin. The process includes the step of contacting an olefinic feedstream with a catalyst system containing a transition metal compound a |
| 7294253 |
Process for producing middle distillates |
November 13, 2007 |
| This invention relates to process for producing middle distillates having good cold flow properties, such as the Cold Filter Plugging Point (CFPP) measured in accordance with the IP method 309, and a high Cetane number, as well as to a process for production of such distillates. More |
| 7276616 |
Phosphorous containing ligands for metathesis catalysts |
October 2, 2007 |
| The use of a phosphorus containing Ligand as a Ligand for a metathesis catalyst in a catalysed metathesis reaction wherein the phosphorus containing Ligand is a heterocyclic organic compound with a ligating phosphorus atom as an atom in the heterocyclic ring structure of the heterocy |
| 7271304 |
Process and apparatus for the production of diesel fuels by oligomerisation of olefinic feed str |
September 18, 2007 |
| This invention provides a process for the production of diesel boiling range hydrocarbons, the process including at least the steps of obtaining an olefinic feed stream from one or more hydrocarbon producing processes wherein the olefinic feed stream contains branched short chain olefins |
| 7270741 |
Method of purifying a water-rich stream produced during a fischer-tropsch reaction |
September 18, 2007 |
| This invention relates to an improved method of separating non-acid chemicals from a water rich stream produced during a Fischer-Tropsch (FT) reaction. |
| 7262225 |
Production of fischer-tropsch synthesis produced wax |
August 28, 2007 |
| A process for preparing and using a cobalt slurry phase Fischer-Tropsch synthesis catalyst includes introducing a modifying component Mc into a catalyst support precursor, followed by shaping and calcination, to obtain a catalyst support. The catalyst support is impregnated with an a |
| 7252754 |
Production of biodegradable middle distillates |
August 7, 2007 |
| This invention relates to a process for production of middle distillates having biodegradability properties. More particularly, this invention relates to a process for production of middle distillates produced from a mainly paraffinic synthetic crude which is produced by the reaction of |
| 7217852 |
Process for producing middle distillates and middle distillates produced by that process |
May 15, 2007 |
| This invention relates to middle distillates having good cold flow properties, such as the Cold Filter Plugging Point (CFPP) measured in accordance with the IP method (309), and a high Cetane number, as well as to a process for production of such distillates. More particularly, this |
| 7186331 |
Monitoring unit for monitoring the condition of a semi-permeable membrane |
March 6, 2007 |
| The invention concerns a monitoring unit [10] for monitoring the condition of a semi-permeable membrane [24] in a water purification system, and particularly the condition of spiral membrane in a reverse osmosis water purification system. The monitoring unit [10] comprises a flow chamber |
| 7179312 |
Inhibiting of erosion of vessls |
February 20, 2007 |
| A process vessel includes a body defining an interior vessel surface and a fixed catalyst bed in the body. A retainer is provided on the fixed catalyst bed to retain the fixed catalyst bed in position. The retainer defines at least one trapping formation at or in close proximity to the |
| 7166219 |
Method of purifying fischer-tropsch derived water |
January 23, 2007 |
| A process for the production of highly purified water 44 from Fischer-Tropsch reaction water 12 includes distillation 14 as a primary treatment stage, biological treatment including anaerobic digestion 20 and aerobic digestion 22 as a secondary treatment stage, solid-liquid separatio |
| 7153432 |
Method of purifying Fischer-Tropsch derived water |
December 26, 2006 |
| A process for the production of highly purified water 38 from Fischer-Tropsch reaction water 12, includes at least the steps of a primary treatment stage comprising an equilibrium staged separation process 14 having at least one stage for removing at least a fraction of non-acid oxyg |
| 7153393 |
Method of purifying Fischer-Tropsch derived water |
December 26, 2006 |
| A process for the production of highly purified water from Fischer-Tropsch reaction water includes distillation as a primary treatment stage, evaporation as a secondary treatment stage, aerobic treatment as a tertiary treatment stage, solid-liquid separation as a quartic treatment st |
| 7150831 |
Method of purifying fischer-tropsch derived water |
December 19, 2006 |
| A process for the production of purified water from Fischer-Tropsch reaction water wherein the purified water is an aqueous stream having a COD of between 20 and 500 mg/l, a pH of between 6.0 and 9.0, a suspended solids content of less than 250 mg/l and a total dissolved solids content |
| 7147775 |
Method of purifying fischer-tropsch derived water |
December 12, 2006 |
| A process for the production of highly purified water from Fischer-Tropsch reaction water, which process includes at least the steps of a primary treatment stage comprising biological treatment for removing at least a fraction of dissolved organic carbon from the Fischer-Tropsch reaction |
| 7011809 |
Attrition resistant gamma-alumina catalyst support |
March 14, 2006 |
| A .gamma.-alumina catalyst support having improved attrition resistance produced by a method comprising the steps of treating a particulate .gamma.-alumina material with an acidic aqueous solution comprising water and nitric acid and then, prior to adding any catalytic material thereto, |
| 7008967 |
Production of synthesis gas and synthesis gas derived products |
March 7, 2006 |
| A process (10) for producing synthesis gas includes, in a gasification stage (12), gasifying a carbonaceous feestock to provide a raw synthesis gas which includes at least H.sub.2, CO and CH.sub.4 and, in a partial oxidation stage (14), subjecting the raw synthesis gas to partial oxi |
| 6974844 |
Process for starting up a Fischer-Tropsch reactor |
December 13, 2005 |
| A process for starting up a Fischer-Tropsch reactor includes establishing, in the reactor, an initial charge of molten wax. The initial reactor temperature is below the line-out reactor temperature but is sufficiently high for a Fischer-Tropsch reaction to take place. The reactor contain |
| 6951893 |
Heat treated Fischer-Tropsch catalyst particles |
October 4, 2005 |
| The invention provides heat treated self-supported precipitated iron-based Fischer-Tropsch catalyst particles. The particles of the present invention are breakage resistant and exhibit superior synthesis performance. The invention also provides a method for producing said particles and a |
| 6939384 |
Inhibiting of erosion of vessels |
September 6, 2005 |
| A method of inhibiting erosion of an interior surface of a process vessel by solid objects carried in a fluid passing over the interior surface includes providing at least one formation at or in close proximity to the interior surface to interfere with the flow of the fluid over the inte |
| 6900247 |
Natural gas conversion to hydrocarbons and ammonia |
May 31, 2005 |
| A process for the production of hydrocarbons and ammonia, and more particularly a process for optimizing the production of hydrocarbons and ammonia using a combined hydrocarbon synthesis plant and ammonia synthesis plant. Synthesis gas exiting a reforming section of the hydrocarbon s |
| 6897177 |
Cobalt catalysts |
May 24, 2005 |
| A process for preparing a cobalt based catalyst precursor includes, in a support impregnation stage, impregnating a coated catalyst support comprising porous catalyst support particles coated with carbon, with a cobalt salt, and partially drying the impregnated support. Thereafter, in |
| 6887370 |
Separation of oxygenates from a hydrocarbon stream |
May 3, 2005 |
| This invention relates to a method for separating olefins and paraffins from oxygenates in a liquid hydrocarbon stream containing a high proportion of olefins, paraffins and oxygenates (mainly alcohols). Typically, the hydrocarbon stream is obtained from a Fischer-Tropsch process. Th |
| 6875720 |
Method of treating an untreated catalyst support, and forming a catalyst precursor and catalyst |
April 5, 2005 |
| A method of treating an untreated catalyst support includes contacting an untreated catalyst support which is partially soluble in an aqueous acid and/or a neutral aqueous solution with a modifying component precursor of the formula Me(OR).sub.x where Me is a modifying component selected |
| 6864293 |
Production of liquid and, optionally, gaseous products from gaseous reactants |
March 8, 2005 |
| A process for producing liquid and, optionally, gaseous products from gaseous reactants includes feeding, at a low level, gaseous reactants into a slurry bed, allowing the gaseous reactants to react as they pass upwardly through the slurry bed, withdrawing any gaseous product and unr |
| 6844370 |
Hydrocarbon synthesis catalyst and process |
January 18, 2005 |
| According to the present invention there is provided a hydrocarbon synthesis catalyst comprising a precipitated iron product and a catalyst promotor. The catalyst has a surface area of below 60 m.sup.2 per gram of catalyst in the reduced form or below 100 m.sup.2 per gram of catalyst in |
| 6806226 |
Cobalt catalysts |
October 19, 2004 |
| A cobalt catalyst precursor includes a catalyst support impregnated with cobalt. All reducible cobalt is present in the support as supported cobalt oxide of formula-unit CoOaHb, where a.gtoreq.1,7 and b.gtoreq.0. A process for preparing a cobalt catalyst precursor, and a process for prep |
| 6784212 |
Production of liquid hydrocarbon products |
August 31, 2004 |
| A process for producing liquid hydrocarbon products includes converting a natural gas feedstock to synthesis gas, which is reacted, in a hydrocarbon synthesis stage and by a Fischer-Tropsch reaction, to produce a range of hydrocarbon product. An overheads vapour phase is separated from a |
