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Patent Searching and Data


Matches 601 - 650 out of 5,745

Document Document Title
WO/2004/031546A2
A method and apparatus for regenerating a lean NOx adsorber is disclosed where the NOx adsorber isused to treat exhaust gases created during the combustion of gaseous fuels in general. A bypass line isused to maintain a target regenerati...  
WO/2004/029009A1
The present invention is a process for removing catalyst fines from an effluent stream in an oxygenate to olefin process. Specifically, the catalyst fines in the effluent stream are separated from the effluent stream. Then the carbonaceo...  
WO/2004/026447A1
The invention relates to a method for the regeneration of deNOx catalysts with a reduced activity caused by the accumulation of phosphor and phosphorous compounds. The method is characterised in that the catalysts are treated with an ess...  
WO/2004/026796A2
Methods and apparatus for improving the efficiency and effectiveness of in situ reduction of a Fischer-Tropsch catalyst slurry. The preferred embodiments of the present invention are characterized by a system that utilizes a co-feed of c...  
WO/2004/026466A1
Used titanium-containing silicon oxide catalysts are regenerated by heating the used catalyst at a temperature of at least 400 °C in the presence of a oxygen-containing gas stream, followed by impregnation with a titanium source, and th...  
WO2003080766A3
The invention pertains to a process for combusting coke of a coke-containing FCC catalyst in a regeneration unit of a FCC unit comprising the introduction of oxygen-containing gas through a gas-transport unit into the regeneration unit a...  
WO/2004/024665A1
The invention concerns a method for producing acrylic acid from propane, which consists in passing a gas mixture including propane, water vapour, and optionally an inert gas and/or molecular oxygen, on a catalyst of formula (I): Mo1VaSbb...  
WO/2004/024664A1
The invention concerns a method for producing acrylic acid from propane, in the absence of molecular oxygen which consists in: a) introducing a gas mixture free of molecular oxygen and comprising propane, water vapour, and, optionally, a...  
WO/2004/022226A1
The invention relates to a method for regenerating DeNOx catalysts having an increased SO2/S03 conversion rate as a result of the cumulation of iron compounds, and is characterised in that the catalysts are treated with an essentially aq...  
WO/2004/018092A1
A catalyst regenerator (100) has a first section (110) and a second section (120) and is operated such that carbon from a carbon-contaminated catalyst (140) is converted to carbon monoxide in the first section (110) and that carbon monox...  
WO/2004/018392A1
The present invention provides a process for making an olefin product from an oxygenate-containing feedstock comprising: a) contacting the feedstock in a reaction zone with catalyst particles comprising a molecular sieve containing acid ...  
WO/2004/014793A2
The invention provides compositions and methods to reduce NOx emissions from the flue gas of a fluid catalytic cracking (FCC) unit (10). The invention also provides methods for reducing CO emissions from the regenerator (2) and/or the fl...  
WO/2004/014793A1
The invention provides compositions and methods to reduce NOx emissions from the flue gas of a fluid catalytic cracking (FCC) unit (10). The invention also provides methods for reducing CO emissions from the regenerator (2) and/or the fl...  
WO/2004/013361A1
A dry method of recovering a platinum group element, comprising charging a substance containing platinum group element to be treated and a copper source material containing copper oxide together with a flux component and a reducing agent...  
WO2002083818A3
The present invention is directed to a method of desulfurization of a sulfur laden hydrocarbon liquid that comprises contacting the liquid with a sponge nickel metal alloy, removing the sulfur free liquid, regeneration of the alloy by co...  
WO/2004/007431A1
The invention relates to a method for the recycling of a Lewis acid from a reaction mixture (I), obtained from the hydrocyanation of an olefinically-unsaturated compound to give a nitrile, which has a miscibility gap with water under cer...  
WO2002100984A9
A baffle-style stripping arrangement for an FCC process having substantially horizontal stripping baffles is disclosed. The stripping baffles comprise a perforated section and an imperforate section which generates transverse movement of...  
WO/2004/007075A1
The present invention generally relates to a method of thermally reactivating activated carbon via a two−step process: steam followed by pyrolysis&semi whereby the steam is preferably deoxygenated. Activated carbons reactivated by this...  
WO2003041860A3
An in situ process for conducting regeneration of spent hydrocarbon synthesis catalyst. Regenerated, but not yet re-activated, catalyst (15) may be introduced into an operating HCS reactor (1) that has catalyst rejuvenation means (14). A...  
WO/2004/000461A1
A method of regenerating a NOx removal catalyst, which enables easily restoring the catalytic activity of deteriorated NOx removal catalyst, and which can be performed easily and ensures a high operating efficiency. In particular, a meth...  
WO2003051510A3
The granular, shape-selective zeolite catalyst used as a bulk material in a reactor for producing lower olefins on the basis of a mixture of higher olefins has to be decoked from time to time. For this purpose, the reactor is scavenged w...  
WO/2003/101616A1
The present invention discloses the process for regenerating catalyst containing titanium, which is characterised by deactivated catalyst is treated in the acid solution whose PH is equal to or less than 3, then dried and calcinated. Thi...  
WO2002085508A3
A process for regenerating a slurry Fischer-Tropsch catalyst (26), which needs regeneration, involves de-waxing and drying the catalyst sufficiently to produce a free-flowing catalyst powder (36) that is fluidizable; fluidizing the catal...  
WO/2003/099437A1
The invention relates to a method and a device for purifying and/or regenerating entirely or partially deactivated catalysts used to remove nitric acid from the exhaust gases of fossil-fired boiler plants, especially coal-fired boiler pl...  
WO/2003/099747A1
The present invention provides a method for adding heat to a reactor system used to convert oxygenates to olefin, in which supplemental heat is added with a heating fuel, e.g., a torch oil, having low autoignition temperature, low sulfur...  
WO2003064034A3
There is provided a process for regenerating the activity of used metal catalysts for the hydrogenation of carbon monoxide comprising decreasing the hydrocarbon content thereof, calcining under an oxidant-containing atmosphere, impregnat...  
WO/2003/093205A2
Disclosed is a method for the production of ethylenically unsaturated aliphatic hydrocarbons containing halogen by thermal cleavage of saturated aliphatic hydrocarbons containing halogen. An educt gas flow is introduced into a reactor wh...  
WO/2003/093207A2
The invention relates to a method for producing ethylenically unsaturated aliphatic halogenic hydrocarbons by the thermal cleavage of saturated aliphatic halogenic hydrocarbons. According to said method, an educt gas stream is introduced...  
WO2003006578A3
The sulfur content of liquid cracking products, especially the cracked gasoline, is reduced in a catalytic cracking process employing a cracking catalyst containing a high content of vanadium. The cracking process involves introducing at...  
WO2003020406A3
The present invention integrates a gasification unit (2) into a catalyst/absorber process for removing pollutants from the combustion product of a gas turbine (8). A small slipstream of syngas from the gasification unit (2) is cleaned in...  
WO2003000399A3
A reactor and regeneration for effecting radial flow contact of a reactant stream with catalyst particles movable as an annular-form bed by gravity flow and for reducing stresses in the bed is disclosed.  
WO/2003/083478A1
It is intended to provide a highly sensitive bioassay sensor system wherein nonspecific adsorption of impurities such as proteins in a biological sample is prevented. In this system, use is made in amplification of polyethylene particles...  
WO/2003/080766A2
The invention pertains to a process for combusting coke of a coke-containing FCC catalyst in a regeneration unit of a FCC unit comprising the introduction of oxygen-containing gas through a gas-transport unit into the regeneration unit a...  
WO2003053567A3
Process for the catalytic dehydrogenation of alkylaromatic hydrocarbons optionally mixed with ethane which comprises: A) dehydrogenating the hydrocarbon stream, optionally mixed with an inert gas, in a fluid bed reactor in the pres­ence...  
WO2003010346A3
A process is disclosed for recovering platinum group metals from a spent catalytic member, and in particular, from a catalytic converter from an automobile. The process comprises comprising introducing the catalytic member (10) into a re...  
WO/2003/078914A1
The invention relates to a method and device for at least partially removing carbon deposits from a heat exchanger. The inventive method consists in performing an oxidation treatment comprising at least one controlled oxidation step, at ...  
WO/2003/076074A1
A unified process which couples a unique in-situ catalyst regeneration process with a continuous reactive distillation under pressure for the alkylation of light aromatic hydrocarbons such as benzene with C¿2?-C¿30? olefins using a sol...  
WO/2003/074451A1
An alkylating agent alkylates an alkylation substrate in a solid catalyst alkylation process in which an alkylation reactor produces a reaction effluent and a catalyst regeneration zone produces a hydrogen-containing regeneration effluen...  
WO2001068252A3
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...  
WO2002045850A3
Process for the regeneration of exhausted catalysts, containing one or more calcium aluminates, for steam cracking reactions, comprising treating said exhausted catalysts in a stream of water vapour at a temperature ranging from 700 to 9...  
WO/2003/064355A1
A process for enhancing metal catalysts for carbon monoxide hydrogenation comprising reducing the catalyst so that at least a portion is in the metallic state, impregnating under a non−oxidative atmosphere with a solution of a salt of ...  
WO/2003/064040A1
There is provided a process for renewing the activity of supported metal catalysts for the hydrogenation of carbon monoxide to form a mixture of hydrocarbons comprising decreasing the hydrocarbon content of the catalyst, preferably by co...  
WO/2003/064034A2
There is provided a process for regenerating the activity of used metal catalysts for the hydrogenation of carbon monoxide comprising decreasing the hydrocarbon content thereof, calcining under an oxidant-containing atmosphere, impregnat...  
WO/2003/064356A1
There is provided a process for hydrocarbon synthesis wherein a supported metal catalyst for hydrogenating carbon monoxide to form a mixture of hydrocarbons is regenerated by decresing its hydrocarbon content, impregnating under a non−...  
WO/2003/064033A1
There is provided a process for renewing the activity of used, supported metal catalysts for the hydrogenation of carbon monoxide to form a mixture of hydrocarbons comprising decreasing the hydrocarbon content of the catalyst, impregnati...  
WO2003018182A3
Improved methods for conduction solid acid-catalyzed, near- or supercritical heterogeneous chemical reactions (e.g., alkylation reactions) are provided which give enhanced product yields and permit longer processing runs. The preferred r...  
WO/2003/062188A2
The invention relates to a method for the hydrogenation of compounds comprising cyano or nitro functions to give amino compounds aminonitriles or nitroamines. According to the invention, a method for continuous hydrogenation of compounds...  
WO/2003/059850A1
The present invention provides a process for making an olefin product from an oxygenate feedstock which comprises: a) contacting the feedstock in a reaction zone with a catalyst comprising i) a molecular sieve having defined pore opening...  
WO/2003/055603A1
The invention relates to a method for separating and recycling catalyst components of a chemical reaction mixture involving oxidative direct carbonylation.  
WO/2003/055602A1
The invention relates to a method for separating and recycling catalyst components from a chemical reaction mixture. Said method is characterised in that it comprises at least one extraction step.  

Matches 601 - 650 out of 5,745