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Chemistry Of Hydrocarbon Compounds > Unsaturated Compound Synthesis > From Nonhydrocarbon Feed > Alcohol, Ester, Or Ether Alcohol, Ester, Or EtherAlcohol, Ester, Or Ether patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.01/04/07 - 20070004951 - 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 invention is directed to rejuvenating the catalyst by contacting it ... 01/04/07 - 20070004950 - 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 the catalyst that has a higher content ... 12/28/06 - 20060293547 - Process for manufacture of silicoaluminophosphate molecular sieves A process for manufacturing a silicoaluminophosphate molecular sieve, the process comprising the steps of: (a) dissolving a silicon source into in a template at conditions sufficient to form a solution having a silicon concentration of at least 0.05 wt. %; (b) adding at least one aluminium source and at least ... 11/30/06 - 20060270884 - Oxygenate-to-olefin conversions in a baffled reactor The invention concerns methods and systems for minimizing back-mixing of feedstock flow in converting oxygenates to olefins. In one embodiment, back-mixing is reduced by providing a reactor that includes baffles to reduce the hydraulic diameter of at least a portion of the reactor. Some or all of the baffles can ... 11/30/06 - 20060270883 - Method of making mixed metal oxide containing sulfur The invention relates to a method of making Group 3 and Group 4 mixed metal oxide catalyst suitable for the decomposition of ethers to alkenes and alkanols. In an embodiment, it relates to a method of making a cerium-zirconium mixed metal oxide catalyst. In an embodiment, the catalyst made by ... 10/19/06 - 20060235251 - Production of olefins A process for converting a hydrocarbon feedstock to provide an effluent containing light olefins, the process comprising passing a hydrocarbon feedstock, the feedstock containing at least one C1 to C6 aliphatic hetero compound selected from alcohols, ethers, carbonyl compounds and mixtures thereof and steam in an amount whereby the feedstock ... 10/12/06 - 20060229483 - Multiple riser reactor with centralized catalyst return The present invention is directed to a hydrocarbon conversion apparatus and process. The apparatus comprises the following: a plurality of riser reactors, each having a first end into which a catalyst is fed, a second end through which the catalyst can exit, and optionally a center axis extending therebetween. The ... 10/05/06 - 20060224032 - Protecting catalytic sites of activated porous 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 vapor and/or liquid mixture of aldehyde and at least 0.1 wt. % water and the activated porous molecular sieve has at least 80% of ... 09/28/06 - 20060217582 - 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 methods of regenerating coked catalyst to minimize catalyst deactivation due to contact with moisture. ... 09/28/06 - 20060217581 - 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 methods of regenerating coked catalyst to minimize catalyst deactivation due to contact with moisture. ... 08/31/06 - 20060195001 - 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 molecular sieves, silicoaluminate molecular sieves, and/or metalloaluminophosphate molecular sieves. ... 07/20/06 - 20060161036 - Fluidizing a population of catalyst particles having a low catalyst fines content The present invention relates to processes for fluidizing a population of catalyst particles that are depleted of catalyst fines. In one embodiment, the process includes providing a plurality of catalyst particles in the reactor, wherein the catalyst particles have a d2 value of greater than about 40 microns. The catalyst- ... 07/20/06 - 20060161035 - Conversion of oxygenate to propylene using moving bed technology and a separate heavy olefin interconversion step The average propylene cycle yield of an oxygenate to propylene (OTP) process using a dual-function oxygenate conversion catalyst is substantially enhanced by the use of a combination of: 1) moving bed reactor technology in the catalytic OTP reaction step in lieu of the fixed bed technology of the prior art; ... 07/06/06 - 20060149111 - Liquid contacting of post-quench effluent vapor streams from oxygenate to olefins conversion to capture catalyst fines A process is provided for converting oxygenate to olefins from a fluidized bed reactor which comprises removal of catalyst fines from a quenched vaporous effluent by contacting with a liquid low in catalyst fines content, e.g., oxygenate feedstock, or by-product water from the oxygenates to olefins conversion which is stripped ... 07/06/06 - 20060149110 - Method for stabilizing catalyst activity during mto unit operation A method for maintaining the activity of silicoaluminophosphate (SAPO) molecular sieve catalyst particles during oxygenate to olefin conversion reactions. After regeneration of SAPO catalyst particles, the regenerated particles are mixed with particles having coke on their surface in a manner that maintains their catalytic activity at a predetermined level. ... 07/06/06 - 20060149109 - Converting methanol and ethanol to light olefins The present invention provides processes for producing light olefins from a feedstock comprising methanol and ethanol. The ethanol is converted to ethylene and water over a dehydration catalyst, while the methanol is converted to light olefins and water over a molecular sieve catalyst. These conversion steps may occur in two ... 07/06/06 - 20060149108 - Oxygenate conversion reactor catalyst coolers A process of converting oxygenates to light olefins is disclosed including an oxygenate feedstream with contacting catalyst inside a reactor and converting the oxygenate feedstream to said light olefins. The catalyst becomes spent as deposits from the reaction clog up pores on the catalyst surface. A portion of the spent ... 06/22/06 - 20060135834 - 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 produced olefin product is accomplished using a reaction system that has at ... 06/15/06 - 20060129011 - Method and apparatus for reducing decomposition byproducts in a methanol to olefin reactor system Disclosed is a method and apparatus for reducing the amount of metal catalyzed side-reaction byproducts formed in the feed vaporization and introduction system of a methanol to olefin reactor system by monitoring and/or maintaining the temperature of at least a portion of the feed vaporization and introduction system and/or of ... 06/01/06 - 20060116541 - Oxygenate conversion using boron-containing molecular sieve cha A boron-containing molecular sieve having the CHA crystal structure and comprising (1) silicon oxide and (2) boron oxide or a combination of boron oxide and aluminum oxide, iron oxide, titanium oxide, gallium oxide and mixtures thereof is prepared using a quaternary ammonium cation derived from 1-adamantamine, 3-quinuclidinol or 2-exo-aminonorbornane as ... 06/01/06 - 20060116540 - Conversion of oxygenates to light olefins using high-silica molecular sieve cha A method is disclosed for converting oxygenates to light olefins by reacting the oxygenate at effective conditions over a catalyst comprising a molecular sieve having the CHA crystal structure and having a mole ratio of greater than 50 to 1500 of (1) an oxide selected from silicon oxide, germanium oxide ... 05/18/06 - 20060106270 - Selective conversion of oxygenate to propylene using moving bed technology and a hydrothermally stabilized dual-function catalyst The average propylene cycle selectivity of an oxygenate to propylene (OTP) process using a dual-function oxygenate conversion catalyst is substantially enhanced by the use of a combination of: 1) moving bed reactor technology in the hydrocarbon synthesis portion of the OTP flow scheme in lieu of the fixed bed technology ... 05/04/06 - 20060094917 - External second stage cyclones in olefin production process The present invention comprises a process and apparatus for producing olefins from oxygenates in a reactor. This process comprises these oxygenates with a catalyst to produce a gaseous mixture comprising light olefins and by-products, sending the mixture to a single stage cyclone within said reactor to separate said catalyst from ... 05/04/06 - 20060094916 - Direct return of oxygenate recycle stream in olefin production process The invention is a process and the corresponding apparatus for producing light olefins from oxygenates in an OTO reactor comprising sending an oxygenate feed stream through a feed stream distributor into an OTO reactor, contacting the oxygenates with a catalyst to produce a mixture comprising light olefins, diolefins, unreacted oxygenate ... 05/04/06 - 20060094915 - 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 at a faster rate than a second zone wherein ... 04/13/06 - 20060079724 - Maintaining molecular sieve catalytic activity under water vapor conditions The invention is directed to methods for protecting metalloaluminophosphate molecular sieves, particularly silicoaluminophosphate (SAPO) molecular sieves, from loss of catalytic activity due to contact with a gas containing water. The methods of the invention provide procedures that enable activated sieve to contact water vapor, within a certain range of time, ... 04/13/06 - 20060079723 - Catalyst and process for the conversion of oxygenates to olefins A catalyst composition for use in the conversion of oxygenates to olefins comprises a first molecular sieve comprising a CHA framework type material and a second molecular sieve comprising an AFI framework type material, wherein said second molecular sieve is present in an amount up to 0.75% by weight of ... 04/06/06 - 20060074266 - Catalyst and process for the conversion of oxygenates to olefins A catalyst composition for use in the conversion of oxygenates to olefins comprises a first crystalline silicoaluminophosphate molecular sieve comprising at least one intergrown form of an AEI structure type material and a CHA structure type material, and a second crystalline material different from said first molecular sieve and resulting ... 03/23/06 - 20060063956 - Conversion of oxygenate to propylene with selective hydrogen treatment of heavy olefin recycle stream The average cycle propylene selectivity of an oxygenate to propylene (OTP) process using one or more fixed or moving beds of a dual-function oxygenate conversion catalyst with recycle of one or more C4+ olefin-rich fractions is substantially enhanced by the use of selective hydrotreating technology on these C4+ olefin-rich recycle ... 03/02/06 - 20060047175 - Removal of condensable compounds from an olefin stream This invention is directed to a process for condensing and removing condensable compounds from an olefin stream containing light olefin compounds, and recovering the light olefin compounds. The process of the invention is particularly effective in removing water and heavy hydrocarbons, particularly aromatic hydrocarbons, from an olefin stream made from ... 02/02/06 - 20060025646 - Conversion of oxygenates to olefins A process is described for converting an oxygenate-containing feedstock into one or more olefins in which the feedstock is contacted in a reaction zone with a fluidized bed of a particulate catalyst composition comprising a molecular sieve and at least one metal oxide having an uptake of carbon dioxide at ... 02/02/06 - 20060025645 - Conversion of oxygenates to olefins A process is described for converting an oxygenate-containing feedstock into one or more olefins in a reactor system including a plurality of fixed bed reactors each containing a catalyst composition comprising a molecular sieve and at least one metal oxide having an uptake of carbon dioxide at 100° C. of ... 02/02/06 - 20060025644 - Conversion of oxygenates to olefins A process is described for converting an oxygenate-containing feedstock into one or more olefins in a moving bed reactor system operating in countercurrent flow using a catalyst composition comprising a molecular sieve and at least one metal oxide having an uptake of carbon dioxide at 100° C. of at least ... 01/26/06 - 20060020155 - Processes for converting oxygenates to olefins at reduced volumetric flow rates This invention provides processes for forming light olefins from methanol and/or from syngas through a dimethyl ether intermediate. Specifically, the invention is to converting methanol and/or syngas to dimethyl ether and water in the presence of a first catalyst, preferably comprising γ-alumina, and converting the dimethyl ether to light olefins ... 01/19/06 - 20060014991 - Process for producing olefins A process is described for producing olefins from a vapor product stream from an oxygenate to olefin conversion reaction, the vapor product stream comprising C2 to C4 olefins, C5+ hydrocarbons, at least one oxygenate and water. In the process, the vapor product stream is cooled to remove water therefrom and ... 01/19/06 - 20060014990 - Process for producing olefins A process is described for producing olefins from a vapor product stream from an oxygenate to olefin conversion reaction, the vapor product stream comprising C2 to C4 olefins, C5+ hydrocarbons, at least one oxygenate and water. In the process, the vapor product stream is cooled to remove water therefrom and ... 01/05/06 - 20060004240 - Pretreating a catalyst containing molecular sieve and active metal oxide This invention relates to processes for converting oxygenates to olefins that include a step of pretreating catalyst, which comprises molecular sieve and one or more active metal oxides of one or more metals, with a hydrocarbon composition to provide an integrated hydrocarbon co-catalyst within the molecular sieve. The combination of ... 01/05/06 - 20060004239 - Process for producing olefins A process for producing olefins comprises providing a vapor product stream from an oxygenate to olefin reaction, the vapor product stream comprising C2 to C4 olefins, C2 to C6 carbonyl compounds and water. The vapor product stream is cooled to provide a first vapor effluent stream comprising no more than ... 12/22/05 - 20050283038 - Process for producing olefins A process is described for producing an olefins stream from a first vapor effluent stream from an oxygenate to olefin conversion reaction, said first vapor effluent stream comprising C2 and C3 olefins, C4 hydrocarbons, and C2 to C6 carbonyl compounds. In the process, the temperature and pressure of the first ... 11/03/05 - 20050245780 - Attrition resistant molecular sieve catalyst, method of making and process for using This invention provides an attrition resistant metalloaluminophosphate molecular sieve catalyst composition, methods of making the catalyst composition and processes for using the catalyst composition. The metalloaluminophosphate molecular sieve catalyst composition is highly attrition resistant in dried as well as fully calcined forms. ... 10/20/05 - 20050234281 - Wet scrubbing and recycle of effluent-contaminating catalyst particles in an oxygenate-to-olefin process The economics of a catalytic process using a fluidized conversion zone and a relatively expensive catalyst for converting an oxygenate to light olefins are substantially improved by recovering and recycling effluent contaminating catalyst particles from the product effluent stream withdrawn from the conversion zone which are present despite the use ... 10/20/05 - 20050234280 - Material for a thin and low-conductive funtional layer for an oled and production method therefor The invention relates to a material for applying thin organic layers having a conductivity that can be set in a defined manner. The material comprises at least one mixture consisting of two different fractions of a functional polymer, preferably in a solvent, and is applied, for example, in the form ... 10/06/05 - 20050222478 - Method for processing an olefin-containing product stream A method is described for processing an olefin-containing product stream (1) that contains, besides ethylene and propylene, longer-chain olefins and compounds of hydrocarbons with oxygen (oxygenates). Such a product stream (I) can occur in particular in olefin synthesis from methanol. The product stream is dewatered in successive process steps, optionally ... 09/29/05 - 20050215840 - Oxygenate to olefin process The invention relates to a process for converting an oxygenate feedstock into an olefin product stream comprising (a) contacting an oxygenate feedstock with a molecular sieve catalyst in a reactor under conditions effective to convert the feedstock into an olefin product stream and to form carbonaceous deposits on the catalyst; ... 07/14/05 - 20050154244 - Chabazite-containing molecular sieve, its synthesis and its use in the conversion of oxygenates to olefins wherein X is a trivalent element; Y is a tetravalent element; and n is from 0 to about 0.5. The material exhibits activity and selectivity in the conversion of methanol to lower olefins, especially ethylene and propylene. ... 06/23/05 - 20050137439 - 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 and a unified flow contact zone. ... ### FreshPatents.com Support |