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WO/2000/003801 |
A superacid catalyst is described, based on zirconium sulfate, optionally containing a noble metal, having a porosity ranging from 0.1 to 0.30 cm?2¿/g, consisting of at least 70 % of pores with a diameter ranging from 1 to 4 nm.
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WO/2000/001645 |
The invention relates to a method for producing phytosqualane, characterized in that (a) a phytosqualane-containing residue resulting from vegetable oil production is esterified with a polyol for the derivatization of the fatty acid port...
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WO/1999/055647 |
The invention relates to a method for separating a C¿4? hydrocarbon mixture containing essentially 1,3 butadiene, butenes, butanes and other C¿4? hydrocarbons into at least 4 fractions as follows: a) fraction (a) consisting essentially...
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WO/1999/044738 |
A method for a solid acid catalyst which contains sulfuric acid, exhibits a satisfactorily high activity even when formed into moldings, and also has a satisfactory mechanical strength and an easiness to handle sufficient to practical op...
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WO/1999/042214 |
A method of treating a catalyst support comprises introducing onto and/or into an untreated catalyst support which is partially soluble in an aqueous acid solution and/or a neutral aqueous solution, Si, Zr, Cu, Zn, Mn, Ba, Co, Ni and/or ...
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WO/1999/041217 |
A gas conversion process in which both hycdrocarbons and hydrogen are produced from a synthesis gas feed which comprises a mixture of H¿2? and CO, uses hydrogen from a portion of the feed for one or more of (i) hydrocarbon synthesis cat...
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WO/1999/026905 |
A process is provided for the production of a gasoline blending fraction rich in isooctane by the dimerization of isobutylene using tertiary butyl alcohol modifier and isoalkane diluent; advantageously the isobutylene is derived from the...
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WO/1999/020256 |
The invention relates to medicament excipient particles which are suitable for tissue-specific application of a medicament, especially to the central nervous system (CNS). The inventive particles can be loaded with or be free of the acti...
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WO/1999/020720 |
A liquid hydrocarbon composition, containing paraffinic hydrocarbon components in which the extent of branching, as measured by the percentage of methyl hydrogens (BI), and the proximity of branching, as measured by the percentage of rec...
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WO/1999/019662 |
A gas hydrate storage reservoir (10) includes at least one insulated wall (12) defining an opening and a sunlight permeable top (16) covering the opening. A gas tight, gas hydrate storage cavity (20) is defined within the top and the wal...
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WO/1999/019283 |
A method and apparatus for liberating gas from gas hydrates including the use of a device, provided adjacent to or in the bulk gas hydrates (12), for exposing the gas hydrates to heat from a gas or liquid (preferably steam). The gas hydr...
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WO/1999/019282 |
Gas hydrates are produced by introducing a hydrate-forming gas and water into a reactor vessel (12) having a fluidized or expanded bed reaction zone. The reactor vessel has an upper portion (14) and lower portion (16) wherein the cross-s...
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WO/1999/017870 |
The process of the invention comprises feeding gaseous reactants into a slurry bed of particles suspended in a liquid. The gaseous reactants (13) react in the slurry bed (16), to form liquid and, optionally, gaseous products. The liquid ...
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WO/1999/015484 |
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/1999/002265 |
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/1999/001218 |
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/1999/001706 |
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/1999/000190 |
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/1999/000191 |
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/1998/056739 |
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/1998/050492 |
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/1998/050491 |
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/1998/050494 |
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/1998/047620 |
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/1998/047618 |
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/1998/042438 |
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/1998/029369 |
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/1998/025871 |
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/1998/023560 |
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/1998/022213 |
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/1998/019980 |
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/1998/017609 |
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/1998/012160 |
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/1998/011037 |
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/1998/009725 |
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/1997/048666 |
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/1997/046487 |
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/1997/045198 |
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/1997/045383 |
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/1997/044304 |
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/1997/033847 |
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/1997/033689 |
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/1997/032834 |
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/1997/032901 |
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/1997/032238 |
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/1997/029162 |
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/1997/025141 |
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/1997/024224 |
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/1997/021787 |
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/1997/019752 |
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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