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WO/1999/015484A1 |
The invention is a process for producing hydrocarbons from hydrogen and carbon monoxide by reacting hydrogen and carbon monoxide in the presence of a particulate solid catalyst and a substantially inert liquid medium. This reaction takes...
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WO/1999/002265A1 |
A process for the preparation of a novel highly active, highly selective catalyst useful for conducting carbon monoxide hydrogenation reactions, particularly Fischer-Tropsch reactions, the catalyst $i(per se), and process for use of such...
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WO/1999/001706A1 |
This invention is a process for producing pressurized liquid (19) rich in methane from a multi-component feed stream (10) containing methane and a freezable component having a relative volatility less than that of methane. The multi-comp...
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WO/1999/001218A1 |
Catalytic composition which can be used in the Fischer-Tropsch process essentially consisting of an inert carrier, cobalt in a quantity ranging from 1 to 50 % by weight, preferably from 5 to 35 % by weight, and tantalum in a quantity ran...
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WO/1999/000190A1 |
Process for the preparation of a catalyst comprising an inert carrier, a larger quantity of cobalt and smaller quantities of scandium, characterized in that it comprises the following steps: 1) production of a first catalytic precursor (...
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WO/1999/000191A2 |
Continuous process for the production of prevalently heavy hydrocarbons starting from synthesis gas in the presence of a gas phase, a liquid and a solid catalyst, the above process being carried out using a bubble column, characterized i...
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WO/1998/056739A1 |
Improved isoparaffin-olefin alkylation solid catalyst processes are provided which are characterized by low coke laydown and catalyst deactivation rates and production of valuable branched chain, high octane number alkylates. The process...
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WO/1998/050491A1 |
Partially deactivated catalyst in a slurry hydrocarbon synthesis process is rejuvenated employing a cyclic rejuvenation process in which syngas or CO flow into the slurry is stopped to stop the hydrocarbon synthesis reaction, the CO purg...
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WO/1998/050494A1 |
Particulate solids and gas are removed from a three phase hydrocarbon synthesis slurry of solid catalyst particles, gas and liquid, by successively passing slurry from a slurry body through solids and gas disengaging zones in fluid commu...
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WO/1998/050492A1 |
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 the slurry through a gas disengaging down...
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WO/1998/047620A1 |
A process for the preparation of a catalyst useful for conducting carbon monoxide conversion reactions, especially a Fischer-Tropsch catalyst, use of the catalyst for conducting such reactions, especially Fischer-Tropsch reactions, and t...
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WO/1998/047618A1 |
A process for the preparation of a catalyst useful for conducting carbon monoxide hydrogenation reactions, especially a Fischer-Tropsch catalyst, use of the catalyst for conducting such reactions, especially Fischer-Tropsch reactions, an...
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WO/1998/042438A1 |
The invention concerns a catalyst with modified molybdenum oxycarbide base having a specific surface area more than 5 m?2�/g and improved catalytic activity, in particular in velocity constant, characterised in that it is prepared from...
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WO/1998/029369A1 |
Gas is recovered from a clathrate hydrate (100) by providing the clathrate hydrate (100) within an occupying zone (102), positioning a source of electromagnetic radiation (200) within the clathrate hydrate occupying zone (102), and apply...
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WO/1998/025871A1 |
The present invention provides an improved method for recovering high purity olefins from cracked gas effluents or other paraffin/olefin gaseous mixtures by use of a chemical absorption process.
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WO/1998/023560A1 |
The invention pertains to a process for alkylating hydrocarbons in which an alkylatable organic compound is reacted with an alkylation agent to form an alkylate in the presence of a catalyst comprising a hydrogenating function and a soli...
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WO/1998/022213A1 |
The invention concerns a NU-86 zeolite, containing silicon, and at least one element T selected from the group formed by aluminium, iron, gallium and boron, preferably aluminium, characterised in that the element T has been extracted fro...
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WO/1998/019980A1 |
A composition for preventing or retarding the formation of gas hydrates or for reducing the tendency of gas hydrates to agglomerate, during the transport of a fluid comprising water and a hydrocarbon, through a conduit, comprising, (a) a...
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WO/1998/017609A1 |
A process for the recovery of propane, propylene and heavier hydrocarbon components from a hydrocarbon gas stream is disclosed. The stream is cooled and/or expanded to partially condense it, then separated to provide one or more C�3? c...
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WO/1998/012160A1 |
A process for the removal of vinylacetylene, ethylacetylene and 1,2-butadiene from C�4? aliphatic hydrocarbon streams comprising, concurrently: (1) feeding hydrogen and a hydrocarbon stream comprising C�4? hydrocarbons including buta...
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WO/1998/011037A1 |
The present invention relates to a Fisher-Tropsch catalyst comprising a compound of a catalytically active metal supported on a titania catalyst carrier having a rutile:anatase ratio of less than 2:3, and a surface area of less than 75 m...
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WO/1998/009725A1 |
This invention concerns a catalyst which, for instance, is suited for hydrogenation and consists of at least one catalytically active metal in a low-valence state on an essentially carbon substrate. This substrate consists of carbon whic...
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WO/1997/048666A1 |
The liquid product of an alkylation process is at least partially vaporised, at least a part of the vapour phase is condensed and optionally, the liquid condensate is flashed. The liquid phase resulting from one or both condensations is ...
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WO/1997/046304A1 |
The description relates to a process for drying damp gas, especially natural gas, and a corresponding device. The damp gas is subjected to a treatment process in which it is first adiabatically expanded and then set into turbulent flow i...
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WO/1997/046487A2 |
The invention features an activated silica enriched mazzite of chemical formula, in anhydrous state, expressed in molar ratios as: a M2/nO; Al2O3; b SiO2, with a varying from 0 to 0.5, M being an alkaline cation of valency n and b being ...
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WO/1997/045383A1 |
The instant invention relates to a fluid catalytic isoparaffin-olefin alkylation process in which a circulating fluidized-bed reactor is employed and the catalyst is continuously regenerated. A solid catalyst which comprises a large pore...
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WO/1997/045198A1 |
There is provided a zeolite bound zeolite catalyst which can be tailored to optimize its performance and a process for converting hydrocarbons utilizing the zeolite bound zeolite catalyst. The zeolite bound zeolite catalyst comprises a f...
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WO/1997/044304A1 |
The description relates to a process for the catalytic hydrogenation of terpenoids with water in the presence of a transition metal catalyst, in which the hydrogenation is performed in the homogenous phase in the presence of a catalyst c...
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WO/1997/033847A1 |
A turbine-powered, synthesis-gas system and method include a gas turbine (206) having a synthesis gas production unit (202) and a synthesis unit (204) disposed between the compression section (208) and expansion-turbine section (210) of ...
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WO/1997/033689A1 |
There is provided a method for preparing an acidic solid comprising a Group IVB metal oxide modified with an oxyanion of a Group VIB metal. An example of this acidic solid is zirconia, modified with tungstate. This modified solid oxide m...
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WO/1997/032901A1 |
A process for the production of ethers and alkylate from a paraffin feedstock. The process includes a novel arrangement of dehydrogenation, isomerization, separation, etherification and alkylation to provide such products.
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WO/1997/032834A1 |
A feedstock is alkylated in presence of a hydrogen fluoride containing catalyst, which also comprises a carrier. Possible carriers are: a synthetic water soluble polymer like sodium acrylate or a salt like ammonium trifluoroacetate, ammo...
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WO/1997/032238A1 |
This invention relates to a solvent system and process for cleaning cellulose triacetate polymer camera film. The solvent system comprises n-propyl bromide and a mix of an alkyl bromide in which the alkyl group contains 4 to 7 carbon ato...
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WO/1997/029162A1 |
A refrigerant mixture which scarcely effects the ozonosphere in the stratosphere, is less likely to cause global warming, and can be used as such together with conventional compressor lubricating oils other than ester oil in a convention...
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WO/1997/025141A1 |
An alkylation catalyst including at least one porous refractory metal oxide with at least one halogen on the surface thereof, said catalyst being characterised in that it further contains 0.005-1 wt % of at least one metal from groups IA...
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WO/1997/024224A1 |
Organically-functionalized metal nanoparticles are produced by mixing a metal precursor with an organic surface passivant and reacting the resulting mixture with a reducing agent to generate free metal while binding the passivant to the ...
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WO/1997/021787A1 |
Discloses high purity solvent compositions constituted of n-paraffins and isoparaffins, with the isoparaffins containing predominantly methyl branches, and having an isoparaffin:n-paraffin ratio sufficient to provide superior low tempera...
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WO/1997/019752A1 |
The invention pertains to a process for preparing an activated catalyst composition in which a catalyst composition comprising a Group VIII noble metal and a hydrocarbon-substituted aluminium compound on an alumina carrier containing up ...
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WO/1997/019041A1 |
An improved process for alkylation of isoparaffins with olefins to yield a product which includes a high proportion of highly branched alkylates for blending into gasolines is disclosed. The catalyst comprises a large pore zeolite such a...
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WO/1997/016501A1 |
An azeotrope-like composition comprising: (A) 1,1,1,2-tetrafluoroethane and (B) n-pentane. Also described is a heat transfer device comprising the azeotrope-like composition.
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WO/1997/016399A1 |
A methane concentration method for removing carbonic acid gas from an anaerobic digestive fermentation gas and concentrating and recovering methane by using an apparatus (10) including a pre-stage module (11) with a membrane (11a) and a ...
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WO/1997/009397A1 |
The invention pertains to a selective hydroisomerisation method for compounds with one or more n-alkane chains containing 10 carbon atoms or less, wherein said compound to be treated is contacted with a catalyst including at least one hy...
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WO/1997/005088A1 |
This invention relates to a process for preparing hydrocarbons, in particular hydrogenation of carbon dioxide over Fe-K/Al2O3 catalyst, which is reduced in hydrogen and activated in the mixture of carbon dioxide and hydrogen.
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WO/1996/037571A1 |
A mixed gas refrigerant for use as a replacement for CFC refrigerants, and specifically, for R-12, which includes at least three components including R-134a, R-124, and n-butane, with the n-butane being at least present in trace amounts ...
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WO/1996/037580A1 |
Novel fluid mixtures of specified hydrocarbons meeting an array of structural criteria are described. Linear hydrocarbons having terminal double bonds and internal segments of specified differing chain lengths separated by one or more ca...
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WO/1996/036581A1 |
A process for converting at least one olefin and at least one paraffin to a diesel fuel blending component comprises the steps of contacting said olefin and said isoparaffin with a catalyst selected from the group consisting of MCM-22, M...
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WO/1996/030439A1 |
Azeotropic compositions made up of: a) one compound selected from (1) about 26 to about 88 % by weight perfluorohexane, (2) about 4 to about 50 % by weight 1,3-dioxolane, or (3) about 64 to about 87 % by weight 1,1,1,4,4,4-hexafluorobuta...
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WO/1996/010062A1 |
Compositions include compositions of 1,1,2,2,3,3,4,4-octafluorobutane and a hydrocarbon having from 3 to 7 carbon atoms. Specific examples include 1,1,2,2,3,3,4,4-octafluorobutane and butane, cyclopropane, isobutane, propane, cyclopentan...
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WO/1996/007477A1 |
The invention pertains to a catalyst at least comprising a hydrogenation metal component and a swelling synthetic clay consisting of elemental clay platelets, with the average diameter of the clay platelets not exceeding 1 micron and the...
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WO/1996/005155A1 |
In the proposed process for obtaining high-octane gasoline components, the starting mixture consisting of isobutane and olefins, preferably butylenes, in a molar ratio of between 1 and 40, is brought into contact with a heterogeneous aci...
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