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Patent Searching and Data


Matches 601 - 650 out of 2,805

Document Document Title
WO/2001/094280
Fresh catalyst particles are added to a slurry hydrocarbon synthesis reactor and their activity increased by contact with hydrogen in-situ in the slurry in a catalyst activity increasing means, while the reactor is producing hydrocarbons...  
WO/2001/094260
A method and apparatus for catalytic production of carbon nanotubes. Catalytic particles are exposed to different process conditions at successive stages wherein the catalytic particles do not come in contact with reactive (catalytic) ga...  
WO/2001/094281
Fresh catalyst particles are added to a slurry hydrocarbon synthesis reactor and their activity increased by contact with hydrogen in-situ in the slurry in a catalyst activity increasing means, while the reactor is producing hydrocarbons...  
WO/2001/094013
One aspect of the invention provides a rejuvenating and/or cleaning composition for a catalyst of a vehicle catalytic converter, comprising at least one hydrocarbon source and at least one oxygen donor. The inventive composition can also...  
WO/2001/085311
The invention relates to a method for converting a substance contained in a gas stream (A). According to said method, the gas stream (A) is supplied to a reaction chamber (2) and the substance (NO) is subjected to the action of a catalyt...  
WO/2001/083408
A process for alkylating an alkylatable aromatic compound is disclosed, in which the process includes: (a) contacting the alkylatable aromatic compound and an alkylating agent with an alkylation catalyst under alkylation conditions; and ...  
WO/2001/080995
Disclosed is a method of rejuvenating a molecular sieve. The method includes contacting a molecular sieve having a methanol uptake of less than 1, or a catalyst containing molecular sieve having a methanol up of less than 1, with anhydro...  
WO/2001/077507
A method for the desulphurisation of an oxidation catalyst (8), arranged in the exhaust line of a diesel internal combustion engine (1), is disclosed, whereby the diesel internal combustion engine (1) is operated at a lambda value $g(l)1...  
WO/2001/072679
According to the invention, rhodium is recovered from hydroformylation products (feed material) by thermally processing the feed material in the presence of an adsorbent and, optionally, with the additional action of hydrogen.  
WO/2001/072929
A high temperature naphtha desulfurization process with reduced olefin saturation employs a partially spent and low metals content hydrodesulfurization catalyst having from 2-40 % the activity of a new catalyst. The catalytic metals pref...  
WO/2001/068252
This invention relates to a process for separating one or more orgnnophosphorus ligand degradation products, one or more reaction byproducts and one or more formylester products from a reaction product fluid comprising one or more unreac...  
WO/2001/068626
A method for producing maleic acid anhydride by heterogeneous catalytic gas phase oxidation of hydrocarbons comprising at least four carbon atoms with gases containing oxygen in the presence of a volatile phosphorus bond on a catalyst co...  
WO/2001/068250
This invention relates to a process for separating one or more organophosphorus ligand degradation products, one or more reaction byproducts and one or more products from a continuously generated reaction product fluid comprising one or ...  
WO/2001/068247
This invention relates to a process for separating one or more products from a reaction product fluid comprising a metal-organophosphorus ligand complex catalyst, optionally free organophosphorus ligand, said one or more products, one or...  
WO/2001/066497
A method for converting heavy olefins present in a product stream exiting a first reaction zone into light olefins and carbonaceous deposits on a catalyst without separation of the heavy olefins from the product stream exiting the first ...  
WO/2001/058842
Fatty alcohol and other organics are extracted from spent copper chromite catalyst by a mixture comprising from 50 to 99 % by weight based on the total weight of organic solvent of a water miscible solvent such as isopropanol, 1 to 50 % ...  
WO/2001/056932
The invention relates to a method for separating and recovering rhodium from reaction products of oxosynthesis, especially reaction products containing cobalt. The invention also relates to the reuse of rhodium as a catalyst for hydrofor...  
WO/2001/052982
Process for the preparation of a catalyst support material comprising the steps of: (a) subjecting a used titania-on-silica catalyst to a decoking treatment, (b) washing the decoked catalyst with a washing liquid selected from an aqueous...  
WO/2001/047630
A baffle-style stripper (14', 132) for an FCC process having a complete or nearly complete coverage of stripping openings (53, 55, 75, 59, 61, 63, 140, 141) over the sloped surface of the baffle will provide improved stripping efficiency...  
WO/2001/047632
A method for regenerating catalyzers which contain copper as an active component and which were used in hydrogenation or in aminating hydrogenation of carbonyl compounds or in the amination of alcohols. Said method consists in treating t...  
WO/2001/042176
A process for producing vinyl chloride monomer where significant quantities of both ethane and ethylene in input streams to the affiliated reactor where hydrogen chloride in the reactor effluent is essentially fully recovered from the re...  
WO/2001/041926
A process of activating a fresh catalyst or regenerating a deactivated catalyst which is used in a hydro-oxidation process, preferably, the hydro-oxidation of an olefin in the presence of oxygen and hydrogen to an olefin oxide. The hydro...  
WO/2001/040407
The invention concerns a method for producing aromatic compounds from a hydrocarbon cut using a catalyst which preferably circulates in mobile bed, said method comprising at least the following successive steps carried out at least in a ...  
WO/2001/040408
The invention concerns a method for producing aromatic compounds in catalyst mobile bed comprising at least a first step which essentially consists in the dehydrogenation of naphthenes in the presence of hydrogen in a molar ratio (H2)¿1...  
WO/2001/038275
A process for the dehydrohalogenation of halogenated alkanes involving contacting a halogenated alkane having three or more carbon atoms with a rare earth halide or rare earth oxyhalide catalyst under process conditions sufficient to pre...  
WO/2001/038273
This invention is a process for producing vinyl chloride from an ethylene-containing feed, oxygen, and a chlorine source in the presence of a catalyst. The process permits direct production of vinyl chloride in a single reactor system, a...  
WO/2001/038271
An oxidative halogenation process involving contacting a hydrocarbon, for example, ethylene, or a halogenated hydrocarbon with a source of halogen, such as hydrogen chloride, and a source of oxygen in the presence of a catalyst so as to ...  
WO/2001/037993
Process to separate a rhodium/phosphite ligand complex and free phosphite ligand from a hydroformylation mixture also containing high boiling hydroformylation compounds by contacting said mixture with a polymeric membrane, wherein said m...  
WO/2001/036352
A process is disclosed for regenerating catalyst used in a process for synthesizing hydrocarbons. The synthesis process involves contacting a feed stream comprising hydrogen and carbon monoxide with a catalyst in a reaction zone maintain...  
WO/2001/026811
A process for the preparation of a catalyst useful for conducting carbon monoxide hydrogenation reactions, especially Fischer-Tropsch reactions. The steps of the process begin with the activation, or reactivation, of a deactivated cataly...  
WO/2001/025177
The invention concerns a method for recovering a co-catalyst of an aqueous phase by treatment with a base and a step which consists in separating the co-catalyst whereby the co-catalyst is isolated from the aqueous phase treated with the...  
WO/2001/021733
The sulfur content of liquid cracking products, especially the cracked gasoline, of a catalytic cracking process is reduced by the use of a catalyst having a product sulfur reduction component containing a metal component in an oxidation...  
WO/2001/019500
A diesel (compression ignition) engine having combustion management means and an exhaust gas aftertreatment system without an NO¿x? trap, which system comprising a platinum group metal (PGM) catalyst liable to be poisoned by fuel sulphu...  
WO/2001/017678
A process for the desulfurization, and reactivation of a sulfur deactivated catalyst constituted of cobalt composited with a titania support. The sulfur deactivated cobalt titania catalyst is first contacted with a gaseous stream of mole...  
WO/2001/017931
The invention relates to the use of hydrogen fluoride adducts and ammonium fluorides for fluorinating acid chlorides and halogen carbon compounds, such as chlorine alkanes or chlorethers. The used adducts can be regenerated and then re-u...  
WO/2001/014697
The invention relates to a method and a device for the post-treatment of exhaust gases from an internal combustion engine (1), especially in a motor vehicle. The invention is characterized in that the following devices are provided: a hy...  
WO/2001/014058
The regeneration of platinum group metal suspension catalysts involves a dissolution step using HCl and an oxidant, such as Cl¿2? or H¿2?O¿2?, and a precipitating step carried out in the presence of a reducing agent, especially an ald...  
WO/2001/012617
Process for the preparation of alkylene oxide, which process comprises passing a feed comprising an organic hydroperoxide and alkene through a bank of at least two serially connected reactors all containing a bed of heterogeneous epoxida...  
WO/2001/012318
An improved separation process for the continuous catalytic oxidation of aromatic alkyls for the production of aromatic carboxylic acids in a liquid solvent medium, wherein the reactor product stream is withdrawn from the oxidation proce...  
WO/2001/007382
This invention relates to a process for separating one or more cyclic products from a reaction product fluid comprising one or more cyclic reactants, a metal-organophosphorus ligand complex catalyst, optionally free organophosphorus liga...  
WO/2001/002091
The present invention pertains to a process for regenerating a used additive-based catalyst comprising the step of regenerating the catalyst by contacting it with an oxygen-containing gas at a maximum temperature of 500 °C. Preferably, ...  
WO/2001/002092
The present invention pertains to a process for regenerating and rejuvenating a used additive-based catalyst comprising the steps of regenerating the catalyst by contacting it with an oxygen-containing gas at a maximum temperature of 500...  
WO/2001/000318
Catalyst activation of a platinum reforming catalyst system contained in a multiple reactor system by simultaneously reducing the catalyst with a sustained hydrogen flow through the multiple reactor system while introducing a nonmetallic...  
WO/2001/000319
Catalyst activation of a platinum reforming catalyst system contained in a multiple reactor system by simultaneously reducing the catalyst with hydrogen while introducing a nonmetallic chlorine-containing compound into a reactor of the m...  
WO/2001/000524
The present invention relates to methods for the regeneration of catalytic reactors. In particular it relates to methods for regenerating a fuel-processing catalyst whilst it is still being used to supply hydrogen to a fuel cell. The tem...  
WO/2000/076661
The invention concerns a method for the selective separation of iron from other metal ions in particular ions present in certain oxidation catalysts. The invention also concerns a method for recycling oxidation catalysts in the oxidation...  
WO/2000/074849
The invention relates to a honeycomb body (1) consisting of layered or wound sheet layers (2, 3) which are structured in such a way, at least in partial areas, that they form channels (4) through which waste gas can pass. According to th...  
WO/2000/072967
This invention relates to a pretreatment procedure that reduces the required time to obtain the optimum activity of a Pt/Sn-based catalyst. The pretreatment activation consists of repeated cycles of 1) reduction by H¿2? at elevated temp...  
WO/2000/071642
This is a process for upgrading a petroleum naphtha fraction. The naphtha is subjected to reforming and the reformate is cascaded to a benzene and toluene synthesis zone over a benzene and toluene synthesis catalyst comprising a molecula...  
WO/2000/071248
A process for effectively utilizing a catalyst which has been used for a reaction and comprises at least molybdenum, an element A (A is at least one element selected from the group consisting of phosphorus and arsenic), and an element X ...  

Matches 601 - 650 out of 2,805