Class 585/640 - Using metal oxide catalyst

Subclass of Class 585 - Chemistry of hydrocarbon compounds
Definition: Subject matter wherein a catalyst containing a metal oxide
No. of patents: 664
Last issue date: 05/15/2012

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Number	Title	Issue Date
8178741	Method and apparatus for regenerating catalyst during oxygenates to olefins reaction Disclosed herein is a method of recovery of the activity of a molecular sieve catalyst following use of the catalyst in an OTO conversion process. This is achieved by a regeneration apparatus and a method of regenerating a molecular sieve catalyst, comprising two st...	05/15/2012
8053619	Dehydrogenation of mixed alcohols Process for the production of alkenes from a feedstock comprising monohydric aliphatic paraffinic alcohols having from 2 to 3 carbon atoms, in which the monohydric aliphatic paraffinic alcohols containing 2 to 3 carbon atoms are dehydrated into the corresponding sam...	11/08/2011
8049053	Method of synthesizing an olefin product from an oxygenate feedstock utilizing silicoaluminophosphate molecular sieves In a method of synthesizing a silicoaluminophosphate molecular sieve, a synthesis mixture is prepared by combining a source of phosphorus and at least one organic directing agent; and then introducing a source of aluminum into the combination of the phosphorus sourc...	11/01/2011
7973208	Enhancement of molecular sieve performance A catalyst for converting methanol to light olefins and the process for making and using the catalyst are disclosed and claimed. SAPO-34 is a specific catalyst that benefits from its preparation in accordance with this invention. A seed material is used in making th...	07/05/2011
7906698	Hydrocarbon conversion using molecular sieve SSZ-75 The present invention relates to new crystalline molecular sieve SSZ-75 prepared using a tetramethylene-1,4-bis-(N-methylpyrrolidinium) dication as a structure-directing agent, and its use in catalysts for hydrocarbon conversion reactions. ...	03/15/2011
7829751	Processes for converting oxygenates to olefins using aluminosilicate catalysts The present invention relates to processes for forming mixed alcohols containing methanol and ethanol. The mixed alcohol can then be used as a feedstock for an oxygenate to olefin reaction system for conversion thereof to ethylene, propylene, and the like. In additi...	11/09/2010
7825287	Process for production of triptane and triptene High octane C7 hydrocarbons, particularly 2,2,3-trimethylbutane (“triptane”) and 2,2,3-trimethyl-but-1-ene (“triptene”) (collectively “triptyls”) are produced by homologation of a feed comprising dimethyl ether and/or methanol and optionally i...	11/02/2010
7781633	Method for converting an oxygenate feed to a light olefin The present invention relates to a method for converting a feed including an oxygenate to a product including a light olefin. In particular, this invention relates to converting an oxygenate feedstock with a silicoaluminophosphate catalyst to a product including a l...	08/24/2010
7767871	Method of recovering crystalline material and compositions therefrom A method for recovering molecular sieve crystals from a synthesis mixture that comprises adding at least one flocculant having a certain molecular weight and a certain charge density that contribute to the acceleration of the settling rate of the molecular sieve cry...	08/03/2010
7763766	Methanol-to-olefins process with reduced coking A process for producing light olefins from oxygenates wherein internal reactor are protected from metal-catalyzed coking preferably by employing a protective layer. ...	07/27/2010
7754933	Rejuvenating deactivated molecular sieve This invention is directed to a method of rejuvenating a molecular sieve that has decreased catalytic activity as a result of contact with moisture, and a method of using the rejuvenated catalyst to make an olefin product from methanol feed. The molecular sieve can ...	07/13/2010
7750196	Oxygenate conversion using molecular sieve SSZ-75 The present invention relates to new crystalline molecular sieve SSZ-75 having STI framework topology prepared using a tetramethylene-1,4-bis-(N-methylpyrrolidinium) dication as a structure-directing agent and its use in catalysts for converting oxygenates, e.g., me...	07/06/2010
7737316	Method of flocculation and formulation of crystalline materials A method for determining an amount of flocculant effective to recover a molecular sieve crystalline product that comprises the steps of (a) preparing a molecular sieve crystalline product mixture; (b) separating the molecular sieve crystalline product mixture into a...	06/15/2010
7700817	Catalytic cracking of ethers to 1-olefins The current invention provides a process in which ethers are converted into α-olefins by passage over a modified alumina catalyst. The alumina catalyst is made by treating gamma-alumina with a rare earth metal oxide such as lanthanum oxide, La2O3	04/20/2010
7700816	Catalytic conversion of oxygenates to olefins An oxygenate conversion catalyst useful in the conversion of oxygenates such as methanol to olefinic products may be improved by the use of a catalyst combination based on a molecular sieve in combination with a co-catalyst comprising a mixed metal oxide composition...	04/20/2010
7692056	Process for producing lower olefins from methanol or dimethylether The present invention provides a process for producing lower olefins from methanol or dimethyl ether. The technical problem mainly addressed in the present invention is to overcome the defects presented in the prior art including high operation temperature, low yiel...	04/06/2010
7687675	Stabilizing catalyst activity during catalyst regeneration This invention is directed to methods of converting oxygenates to olefin products. The methods provided include steps for protecting against deactivation of active molecular sieve catalysts during the conversion process. In particular, the invention provides for met...	03/30/2010
7678955	Porous composite materials having micro and meso/macroporosity A composite material comprises: (a) a porous crystalline inorganic oxide material comprising a first framework structure defining a first set of uniformly distributed pores having an average cross-sectional dimension of from 0.3 to less than 2 nanometers and compris...	03/16/2010
7663012	Conversion of dimethylether to propylene using moving bed technology The average cycle propylene selectivity of an oxygenate to propylene (OTP) process using one or more fixed beds of a dual-function oxygenate conversion catalyst is substantially enhanced by the use of moving bed reactor technology in the hydrocarbon synthesis portio...	02/16/2010
7626067	Process for recovering and reusing water in an oxygenate-to-olefin process The present invention is a process for cleaning and using byproduct water from an oxygenate to olefin process to satisfy the water requirement of the oxygenate to olefin process. ...	12/01/2009
7622625	Purge gas streams to stagnant zones within oxygenate-to-olefin reactor The present invention comprises a process for conversion of oxygenates to olefins comprising contacting within a reactor the oxygenates with a catalyst to produce light olefins and wherein the reactor comprises at least two zones, a first zone wherein gas circulates...	11/24/2009
7622626	Purge gas streams to stagnant zones within oxygenate-to-olefin reactor The present invention comprises a process for conversion of oxygenates to olefins comprising contacting within a reactor the oxygenates with a catalyst to produce light olefins and wherein the reactor comprises at least two zones, a first zone wherein gas circulates...	11/24/2009
7622624	Crystalline intergrowth material, its synthesis and its use in the conversion of oxygenates to olefins A silicoaluminophosphate molecular sieve is disclosed that comprises first and second intergrown phases of a CHA framework type and an AEI framework type, wherein said first intergrown phase has an AEI/CHA ratio of from about 5/95 to about 40/60 as determined by DIF...	11/24/2009
7619127	Method of operating a riser reactor A method for maximizing the contact between solid catalyst particles and a feedstock while minimizing undesirable side reactions is provided. A plurality of feedstock jets are contacted with solid catalyst particles in a reactor having a non-homogenous contact zone ...	11/17/2009
7619128	Stabilizing catalyst activity during catalyst regeneration This invention is directed to methods of converting oxygenates to olefin products. The methods provided include steps for protecting against deactivation of active molecular sieve catalysts during the conversion process. In particular, the invention provides for met...	11/17/2009
7608746	Process for producing propylene Propylene is prepared by a process for producing propylene, comprising: contacting a reaction mixture of ethylene and methanol and/or dimethyl ether in the presence of a catalyst while controlling the amount of ethylene that is discharged from the reaction system to...	10/27/2009
7576250	Cracking 1-ethers over unmodified γ-alumina 1-Ethers may be cracked over untreated γ-alumina having a pore volume of more than 1.0 cc/g and an average pore diameter of more than 150 angstroms (Å) at a temperature from 250 to 350° C. and a pressure from 10 to 200 kPa at high conversions and good selectivit...	08/18/2009
7557256	Molecular sieve catalyst composition, its making and use in conversion processes This invention provides methods of making molecular sieve catalyst particles, molecular sieve slurries that can be used in such methods, molecular sieve catalyst compositions and their use in catalytic hydrocarbon conversion processes. In one of its aspects, the inv...	07/07/2009
7550641	Methods for recovering activity of molecular sieve catalysts The invention is directed to a method of rejuvenating silicoaluminophosphate molecular sieve catalyst that has been deactivated hydrothermally as well as a method of using the rejuvenated catalyst to make an olefin product from an oxygenate feed. In particular, the ...	06/23/2009
7547812	Enhancement of molecular sieve performance A catalyst for converting methanol to light olefins and the process for making and using the catalyst are disclosed and claimed. SAPO-34 is a specific catalyst that benefits from its preparation in accordance with this invention. A seed material is used in making th...	06/16/2009
7544851	Method of synthesizing aluminophosphate and silicoaluminophosphate molecular sieves In a method of synthesizing an aluminophosphate or silicoaluminophosphate molecular sieve, a synthesis mixture is prepared by mixing a plurality of starting materials including at least a source of water, a source of phosphorus, a source of aluminum, optionally, a s...	06/09/2009
7541508	Molecular sieve catalyst composition, its making and use in conversion processes The invention relates to a molecular sieve catalyst composition, to a method of making or forming the molecular sieve catalyst composition, and to a conversion process using the catalyst composition. In particular, the invention is directed to making a formulated mo...	06/02/2009
7511184	Molecular sieve catalyst composition, its making and use in conversion processes The invention relates to a molecular sieve catalyst composition, to a method of making or forming the molecular sieve catalyst composition, and to a conversion process using the catalyst composition. In particular, the invention is directed to a molecular sieve cata...	03/31/2009
7498475	Molecular sieve mixtures for olefin formation Molecular sieve catalysts are combined to provide a catalyst mixture having a beneficial combination of the activities and selectivities of the individual molecular sieves. The molecular sieve catalysts can be formulated or unformulated silicoaluminophosphate molecu...	03/03/2009
7495142	Protecting catalytic sites of metalloaluminophosphate molecular sieves Metalloaluminophosphate molecular sieves and metalloaluminophosphate molecular sieve catalyst particles are protecting from degradation by water by maintaining said molecular sieves or catalysts in contact with a liquid mixture of alcohol and water, the mixture of a...	02/24/2009
7465845	Increasing ethylene and/or propylene production in an oxygenate to olefins reaction systems This invention is directed to a process for converting oxygenate to olefin product at an increased prime olefin selectivity (i.e., increased ethylene and/or propylene content) compared to conventional systems. The increase in ethylene and/or propylene content of the...	12/16/2008
7459595	Processes for lifting spent catalyst into a regenerator in an oxygenate to olefins reaction system This invention provides processes for transporting catalyst, preferably in an oxygenate to olefins reaction system. In one embodiment, an oxygenate contacts molecular sieve catalyst particles in a reactor under conditions effective to form an effluent stream compris...	12/02/2008
7453020	Molecular sieve catalyst composition, its making and use in conversion processes A catalyst composition that comprises an over flocculated molecular sieve and optionally, a phosphorous compound and, optionally, a non-over flocculated molecular sieve. A method of preparing a catalyst composition that comprises mixing an over flocculated molecular...	11/18/2008
7449611	Molecular sieve catalyst composition, its making and use in conversion processes A catalyst composition that comprises an over flocculated molecular sieve and a phosphorous compound and, optionally, a non-over flocculated molecular sieve. A method of preparing a catalyst composition that comprises mixing an over flocculated molecular sieve and a...	11/11/2008
7442845	Conversion of ethers to olefins Ethers are cracked to olefins using a gamma-alumina catalyst in the presence of ammonia. The use of ammonia improves the selectivity to linear alpha olefins in comparison to cracking reactions in the absence of ammonia. The use of ammonia is convenient in comparison...	10/28/2008

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Class 585/640 - Using metal oxide catalyst