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5821270 Slurry hydrocarbon synthesis process with multistage catalyst rejuvenation  
A reversibly deactivated hydrocarbon synthesis catalyst in a hydrocarbon synthesis slurry is rejuvenated by successively passing the slurry through at least two rejuvenation stages external of the...
5811363 Catalyst rejuvenation in hydrocarbon synthesis slurry with reduced slurry recontamination  
A reversibly deactivated, particulate catalyst in a hydrocarbon synthesis slurry is rejuvenated by circulating the slurry from a slurry body through a rejuvenation zone in which hydrogen contacts...
5811468 Combination gas disengaging downcomer-rejuvenation tube for in-situ slurry catalyst rejuvenation (LAW541)  
A reversibly deactivated, particulate catalyst in a hydrocarbon synthesis slurry is rejuvenated by circulating the slurry from a slurry body through (i) a gas disengaging zone to remove gas...
5811469 Slurry hydrocarbon synthesis with downcomer fed product filtration (LAW552)  
Hydrocarbon liquid products are filtered and removed from a three phase hydrocarbon synthesis slurry comprising gas bubbles and particulate catalyst solids in a hydrocarbon liquid, by circulating...
5786393 Liquid phase process for converting synthesis gas  
In the synthesis of essentially linear saturated C5+ hydrocarbons from synthesis gas, the reactive gas phase circulating either as a downflow or as an upflow through a fixed bed catalytic reaction...
5770629 Slurry hydrocarbon synthesis with external product filtration  
A slurry hydrocarbon synthesis process employs a slurry filtration vessel external of the slurry reactor. Slurry from the reactor is passed through one or more gas and solids disengaging zones,...
5753716 Use of aluminum phosphate as the dehydration catalyst in single step dimethyl ether process  
The present invention pertains to a process for the coproduction of methanol and dimethyl ether (DME) directly from a synthesis gas in a single step (hereafter, the "single step DME process"). In...
5714091 Process for the partial oxydation of hydrocarbons  
The invention relates to a process for the partial oxidation of C1 to C4 hydrocarbons, using novel membranes formed from perovskitic or multi-phase structures, with a chemically active coating...
5635541 Elevated pressure air separation unit for remote gas process  
The present invention is an improvement to a process for the conversion of natural gas to produce higher molecular weight hydrocarbon products, wherein the natural gas is partially oxidized to...
5626794 Process for hydroshifting dimethyl ether  
A process for hydroshifting dimethyl ether is described which comprises passing a feed stream which includes dimethyl ether and steam to a hydroshifting reaction zone including an essentially...
5610202 Catalyst system and process for the liquid-phase production of methanol from synthesis gas  
A catalyst system for the liquid-phase production of methanol from synthesis gas is described, consisting of: one or more copper compounds; one or more alkoxides of the lanthanum group of formula...
5578647 Method of producing off-gas having a selected ratio of carbon monoxide to hydrogen  
A method of producing an off-gas with a selected CO/H2 ratio of from about 0.1 to about 8 and a CO/CO2 ratio of at least about 0.1 by hydrothermal processing is provided. The method comprises the...
5527473 Process for performing reactions in a liquid-solid catalyst slurry  
A process for performing reactions in a liquid-solid catalyst slurry where feed gases pass continuously upward through the slurry bed contained in a reactor vessel and operating at elevated...
5510393 Method for producing methanol  
A graded temperature methanol reactor includes an inclined container containing a liquid heat transfer medium, such as water, having a varying temperature along the container. Conduits, extending...
5496859 Gasification process combined with steam methane reforming to produce syngas suitable for methanol production  
An improved method for the production of stoichiometric ratioed syngas comprises partially oxidizing a gaseous feedstock containing substantial amounts of methane in a gasifier to produce a hot...
5486542 Process for the distillation of Fisher-Tropsch products  
A process for the distillation of a hydrocarbon mixture, which mixture has been prepared by a Fischer-Tropsch synthesis, comprises supplying the hydrocarbon mixture to a wiped film evaporator and...
5466720 Method of producing dimethyl ether  
In a method of producing dimethyl ether from a mixed gas containing carbon monoxide and either or both of hydrogen and water vapor or a mixed gas of them further containing carbon dioxide, the...
5459166 Catalytic process for production of gasoline from synthesis gas  
A process is provided whereby syngas is converted to gasoline via a liquid-phase process producing dimethyl ether as an intermediate.
5409960 Pentane energy transfer medium in gas conversion  
Pentane (or similar light hydrocarbon) is used in a gas conversion process to consume the exothermic heat of reaction in the Fischer-Tropsch process, and expanded to produce the energy to drive...
5389690 Activation of hydrocarbon synthesis catalyst  
A fresh, reduced hydrocarbon synthesis catalyst is activated by contact with hydrogen at elevated temperatures and pressures and in the presence of liquid hydrocarbons, preferably, sufficient to...
5385949 Alkali or alkaline earth metal promoted catalyst and a process for methanol synthesis using alkali or alkaline earth metals as promoters  
The present invention relates to a novel route for the synthesis of methanol, and more specifically to the production of methanol by contacting synthesis gas under relatively mild conditions in a...
5384336 Bubble column, tube side slurry process and apparatus  
A reactor housing having a plurality of reaction tubes vertically disposed therein for conducting slurry phase hydrocarbon synthesis reactions under substantially plug flow conditions, and wherein...
5384335 Methanol synthesis using a catalyst combination of alkali or alkaline earth salts and reduced copper chromite  
The present invention relates to a novel route for the synthesis of methanol, and more specifically to the production of methanol by contacting synthesis gas under relatively mild conditions in a...
5288673 Temperature control in draft tubes for catalyst rejuvenation  
Catalyst in a slurry phase reactor is rejuvenated in said reactor using a substantially vertical draft tube fully immersed in the slurry which utilizes a rejuvenating gas injected substantially...
5284878 Liquid phase methanol process with co-rich recycle  
Methanol is produced by reacting a CO-rich synthesis gas in the presence of a powdered methanol synthesis catalyst suspended in an inert liquid in a liquid phase reactor system. Unreacted CO-rich...
5260239 External catalyst rejuvenation system for the hydrocarbon synthesis process  
Catalyst which has become deactivated during a hydrocarbon synthesis (HCS) process is reactivated - rejuvenated using an external reactivation - rejuvenation vessel resulting in a multiple HCS...
5252613 Enhanced catalyst mixing in slurry bubble columns (OP-3723)  
Catalyst particle distribution and mixing in slurry part of bubble columns is improved by introducing a secondary suspending fluid into the columns at locations within the lower 20% of the...
5248701 Substituted cobalt catalysts for Fischer-Tropsch synthesis  
A copper promoted cobalt manganese spinel useful for Fischer-Tropsch synthesis of olefins and higher paraffins is prepared from an aqueous solution of cobalt and manganese salts of at least one...
5227407 Water addition for increased CO/H2 hydrocarbon synthesis activity over catalysts comprising cobalt, ruthenium and mixtures thereof which may include a promoter metal  
The addition of water into a Fischer-Tropsch hydrocarbon synthesis reaction zone employing passing a CO and H2 feed mixture over a catalyst comprising cobalt, ruthenium and mixtures thereof...
5218003 Liquid phase process for dimethyl ether synthesis  
A one-step process is disclosed for the coproduction of dimethyl ether and methanol from synthesis gas containing H2, CO, and CO2. The synthesis gas is contacted with a mixture of methanol...
5185378 Iron-zinc catalysts for the conversion of synthesis gas to alpha-olefins  
New copper-potassium promoted iron-zinc catalysts wherein the iron:zinc atomic ratio is 5:1 or greater, exhibit improved activity, selectivity and stability in the synthesis of alpha-olefins from...
5179129 Staged liquid phase methanol process  
Methanol is produced from synthesis gas comprising hydrogen, carbon monoxide, and carbon dioxide in a two-stage liquid phase reactor system. Each reactor is operated in an optimum temperature...
5157054 Catalyst fluidization improvements (C-2546)  
Three phase reactions are carried out in a slurry bubble column, e.g., hydrocarbon synthesis, wherein rising gas bubbles fluidize a catalytically active solid dispersed in a liquid phase and in...
5140049 Method for producing olefins from H2 and CO2 using an iron carbide based catalyst  
This invention relates to a process for producing C2 -C20 olefins from a feed stream consisting of H2 and CO2 using an iron-carbide based catalyst.
5137924 Catalytic process  
Methanol synthesis over a catalyst derived from an alloy of copper and/or a platinum group metal and a highly oxidizable metal such as a rare earth metal can be carried out at unusually low...
5100856 Iron-zinc based catalysts for the conversion of synthesis gas to alpha-olefins  
New copper-potassium promoted iron-zinc catalysts wherein the iron:zinc atomic ratio is 5:1 or greater, exhibit improved activity, selectivity and stability in the synthesis of alpha-olefins from...
5032618 Process for producing methanol form synthesis gas, in the liquid phase  
A process for producing methanol from synthesis gas in the liquid phase is disclosed, which comprises reacting CO with H2 in the presence of a catalytic system constituted by one or more copper...
5023277 Syngas conversion catalyst its production and use thereof  
A composition for use after reductive activation as a catalyst in the conversion of synthesis gas to hydrocarbons, which composition comprises as essential components (i) cobalt either as the...
4992479 Process for the preparation of methanol and composition suitable for use as a catalyst in said process  
Process for the preparation of methanol by contacting a gaseous mixture comprising carbon monoxide and hydrogen with a novel catalytic system formed by combining (a) a copper salt (b) an alcohol,...
4992480 Homogeneous catalyst formulations for methanol production  
There is disclosed synthesis of CH3 OH from carbon monoxide and hydrogen using an extremely active homogeneous catalyst for methanol synthesis directly from synthesis gas. The catalyst operates...
4978689 Conversion of synthesis gas to liquid hydrocarbons  
The medium pressure Fischer-Tropsch synthesis of liquid hydrocarbons conducted with an iron catalyst is made more efficient by temporarily suspending conventional synthesis and treating the...
4946477 IGCC process with combined methanol synthesis/water gas shift for methanol and electrical power production  
The present invention relates to an improvement to a process for the production of methanol from synthesis gas containing carbon monoxide and hydrogen utilizing a three phase or liquid-phase...
4935547 Homologation process making higher alcohols  
A liquid phase process for the manufacture of C2+ alkanols by the reaction of hydrogen with carbon monoxide in the presence of a catalyst containing ruthenium, cobalt, a halide-containing...
4927856 Production of hydrocarbons from geothermal resources  
Electricity generation, hydrogen gas production, and methanol production are combined in an integrated system and process for recovering both energy and chemical values from a geothermal resource....
4910227 High volumetric production of methanol in a liquid phase reactor  
The present invention relates to a process for improving reactor volumetric productivity in the production of methanol wherein a synthesis feed gas stream containing hydrogen and carbon oxides is...
4894394 Process for the manufacture of methanol in combination with steam reforming of light hydrocarbons  
Process for the manufacture of methanol by the reaction of a carbon monoxide and hydrogen mixture obtained by steam reforming of light hydrocarbons in the liquid phase in the presence of the...
4888361 Process for the production of methanol and catalyst composition for said process  
A process for the production of methanol comprising contacting a gaseous mixture of carbon monoxide and hydrogen with a catalytic system, obtainable by combination of: component (a): a salt...
4857559 Process for production of hydrocarbons  
A process for converting synthesis gas composed of hydrogen and carbon monoxide to hydrocarbons. The process includes the step of contacting at reaction conditions a synthesis gas feed to a...
4801574 In-situ activation of CuO/ZnO/Al2 O3 catalysts in the liquid phase  
The present invention relates to a method of activation of a CuO/ZnO/Al2 O3 catalyst slurried in a chemically inert liquid. Successful activation of the catalyst requires the use of a process in...
4791141 Process for synthesizing a mixture of primary alcohols from a synthesis gas in the presence of a catalyst containing copper, cobalt, zinc and aluminum  
Process for manufacturing primary alcohols by reacting carbon oxides with hydrogen, in the presence of a catalyst containing, as essential elements, copper, zinc and aluminum, in respective atomic...