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| Number | Title | Issue Date |
| 8269050 | Process for preparing ethyl tert-butyl ether from technical mixtures of C4 hydrocarbons The invention relates to a process for preparing ETBE from technical mixtures which comprise at least 1-butene, isobutene, n-butane and 2-butenes, by reacting the isobutene present, distillatively removing a fraction comprising 1-butene and isobutene and again react... | 09/18/2012 |
| 7732648 | Multistage catalytic process for olefin etherification A process for producing ethers by reacting alcohols and olefins in successive catalytic stages is disclosed. The process includes alternating catalytic reaction stages and separation stages. ... | 06/08/2010 |
| 7553995 | Method of producing tertiary amyl ethyl ether A process for the production of tertiary ethers, including: feeding a hydrocarbon stream comprising isoolefins and propionitrile to a distillation column reactor system containing at least one etherification reaction zone; feeding a C2 to C6 mo... | 06/30/2009 |
| 7473808 | Process for preparing ethyl tert-butyl ether using ethanol dewatered by a membrane process A process for preparing ethyl tert-butyl ether (ETBE) using low-water ethanol obtained by membrane dewatering at least two streams of relatively water-rich ethanol that have a different water content. by dewatering at membranes. ... | 01/06/2009 |
| 7368617 | Selective hydrogenation of acetylenes and dienes in a hydrocarbon stream Acetylenes and dienes in a stream containing hydrogen, methane, C2-C6 olefins and paraffins, C2-C6 acetylenes and dienes, benzene, toluene, xylenes, and other C6+ components are hydrogenated in a downflow boilin... | 05/06/2008 |
| 7344632 | Production of fuel components A process for producing alkyl ethers, by etherification of tertiary C4-7 olefins with an alkanol, comprising carrying out the etherification in reactor train system primarily configured for dimerization of isoolefins. In the etherification, the ratio of a... | 03/18/2008 |
| 7338645 | Method and system for reducing decomposition byproducts in a methanol to olefin reactor system Disclosed is a method and system for reducing the formation of metal catalyzed side-reaction byproducts formed in the feed vaporization and introduction system of a methanol to olefin reactor system by forming and/or coating one or more of the heating devices, feed ... | 03/04/2008 |
| 7339086 | Process for the hydrogenation of branched olefins deriving from the dimerization of isobutene A process is described for the hydrogenation of olefinic streams containing sulfurated compounds, obtained starting from hydrocarbon cuts containing isobutene (by means of selective dimerization), characterized by fractionating said streams in one or more distillati... | 03/04/2008 |
| 7329787 | Process for transforming hydrocarbons into a fraction having an improved octane number and a fraction with a high cetane index A process is described for transforming an initial hydrocarbon feed containing 4 to 15 carbon atoms, limits included, into a hydrocarbon fraction having an improved octane number and a hydrocarbon fraction with a high cetane number. ... | 02/12/2008 |
| 7326821 | Removal of oxygenate from an olefin stream This invention is to a process for removing dimethyl ether from an olefin stream. The process includes contacting the olefin stream with a molecular sieve that has improved capacity to adsorb the dimethyl ether from the olefin stream. The molecular sieve used to rem... | 02/05/2008 |
| 7323147 | Method and apparatus for treating oxygenate-containing feeds and their use in conversion of oxygenates to olefins A feed vaporization process and apparatus for oxygenate to olefin conversion is provided which uses a vapor-liquid disengaging drum to separate non-volatiles and/or partial non-volatiles from volatiles in the oxygenate feed and produce a vaporized effluent that is r... | 01/29/2008 |
| 7320745 | Energy efficient method for exothermic reactions An energy efficient process scheme for a highly exothermic reaction-distillation system in which the reactor is external to the distillation column and the feed to the reactor is a mixture of at least one liquid product stream from the distillation column with or wi... | 01/22/2008 |
| 7304184 | Process for producing allyl-containing compounds An allyl-containing compound represented by following Formula (3): wherein R2, R3, R4, R5 and R6 may be the same as or different from one another and each re... | 12/04/2007 |
| 7304188 | Preparation of highly pure methyl tert-butyl ether The invention relates to a process for preparing methyl tert-butyl ether (MTBE) in qualities which are suitable for organic syntheses and for use as a specialty solvent from MTBE in fuel quality. ... | 12/04/2007 |
| 7287745 | Liquid-continuous column distillation Bubble columns fractionate with vapor-liquid mass transfer efficiencies approaching that of distillation towers when vapor velocities in excess of 50% of jet flood are used. If the vapor velocities are pushed above about 70% of jet flood then the distillation perfor... | 10/30/2007 |
| 7288685 | Production of olefins from biorenewable feedstocks A process for producing olefins from biorenewable feedstocks has been developed. The process comprises first pretreating the feedstock, e.g. vegetable oil, to remove contaminants such as alkali metals and then cracking the purified feedstock in a fluidized catalytic... | 10/30/2007 |
| 7282192 | Mixed metal oxide containing sulfur The invention relates to a composition of matter comprising at least one metal from Group 3, at least one metal from Group 4, sulfur and oxygen, particularly useful as a catalyst for ether decomposition to alkanols and alkenes. ... | 10/16/2007 |
| 7247764 | Conversion process The invention relates to a conversion process for making olefin(s) using a molecular sieve catalyst composition. More specifically, the invention is directed to a process for converting a feedstock comprising an oxygenate in the presence of a molecular sieve catalys... | 07/24/2007 |
| 7244771 | Commercial production of synthetic fuel from fermentation by-products system A commercial production of synthetic fuel from fermentation by-products system for efficiently producing synthetic fuels and other usable by-products. The major volatile by product of most fermentation processes is carbon dioxide. The commercial production of synthe... | 07/17/2007 |
| 7238846 | Conversion process The invention relates to a conversion process for making olefin(s) using a molecular sieve catalyst composition. More specifically, the invention is directed to a process for converting a feedstock comprising an oxygenate in the presence of a molecular sieve catalys... | 07/03/2007 |
| 7214843 | Treating oxygenate containing feedstreams in the conversion of oxygenates to olefins This invention is directed to removing contaminants from an oxygenate-containing feedstream for an oxygenate to olefin reaction system. Oxygenate feeds used in the conversion of oxygenates to olefins, and which contain contaminants, are heated to form a vapor stream... | 05/08/2007 |
| 7214846 | Recovery of ethylene and propylene from a methanol to olefin reaction system The present invention provides new highly-efficient separation processes and systems for separating polymerization-grade ethylene and propylene from an initial effluent stream comprising ethane, ethylene, propylene, dimethyl ether, and one or more of propane, acetyl... | 05/08/2007 |
| 7208650 | Recovery of ethylene and propylene from a methanol to olefin reaction system The present invention provides new highly-efficient separation processes and systems for separating polymerization-grade ethylene and propylene from an initial effluent stream comprising ethane, ethylene, propylene, dimethyl ether, and one or more of propane, acetyl... | 04/24/2007 |
| 7205447 | Process for removing aldehydes and/or ketones from an olefinic stream The present invention provides a process for removing an oxygenate impurity selected from aldehyde and/or ketone, from an olefinic product stream. A product stream is contacted with a metal oxide-containing catalyst in the presence of a C1 to C6 | 04/17/2007 |
| 7202389 | Flash-pyrolysis in a cyclone A process for the pyrolysis of carbonaceous material is carried out in a cyclone reactor which is fitted with enhanced filtering equipment. In addition the invention relates to the use of a cyclone fitted with a rotating filter as a pyrolysis reactor. By using a cyc... | 04/10/2007 |
| 7199068 | Reactive distillation alkylation process including in situ catalyst regeneration 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 C2–C30 olefins using a solid acid alk... | 04/03/2007 |
| 7193118 | Method for producing fluoroalkyl ether A method for producing a fluoroalkyl ether, which comprises reacting a fluoroalkyl alcohol with a fluorinated olefin in the presence of a solvent and a catalyst, wherein the fluoroalkyl alcohol and the fluorinated olefin are continuously supplied into a reactor, a r... | 03/20/2007 |
| 7161051 | Integration of a methanol synthesis system with a methanol to olefin reaction system Disclosed is a process for producing light olefins in an integrated methanol synthesis/MTO reaction system. The integrated system implements a shared separation system for separating oxygenate components from the respective methanol synthesis system and MTO reaction... | 01/09/2007 |
| 7160438 | Process for removal of nitrogen containing contaminants from gas oil feedstreams The present invention is directed to the removal of nitrogen and sulfur containing impurities from high molecular weight petroleum feedstock obtained from fluid cracking catalyst or distillation zone of a petroleum treatment plant. The present process comprises firs... | 01/09/2007 |
| 7151198 | Integration of a methanol synthesis system with a methanol to olefin reaction system Disclosed is a process for producing light olefins in an integrated methanol synthesis/MTO reaction system. The integrated system implements a shared separation system for separating oxygenate components from the respective methanol synthesis system and MTO reaction... | 12/19/2006 |
| 7141705 | Etherification process A process for the etherification of C4, C5 and/or C6 tertiary olefins in a hydrocarbon feed with at least one C1 to C6 alcohol, preferably C1–C4 alcohols in a distillation column reactor,... | 11/28/2006 |
| 7102049 | Process for operating a quench device in an oxygenate-to-olefin production unit The present invention is a process for producing olefin(s) from oxygenates that is more effective than previously known processes at removing carbon dioxide from the effluent stream by operating a quench tower at a pH greater than 7.0. ... | 09/05/2006 |
| 7087156 | Process for removal of nitrogen containing contaminants from gas oil feedstreams The present invention is directed to the removal of nitrogen and sulfur containing impurities from high molecular weight petroleum feedstock obtained from fluid cracking catalyst or distillation zone of a petroleum treatment plant. The present process comprises firs... | 08/08/2006 |
| 7084309 | Process for the synthesis of phenol and acetone This invention refers to a process for the synthesis of phenol and acetone starting from cumene hydroperoxide, and to a plant specifically developed for performing this process. More in particular, this invention refers to a process for the synthesis of phenol and a... | 08/01/2006 |
| 7085358 | Visual caller identification A visual caller identification system and method are provided. A caller identification device of a called party's telephone, whether integrated with the telephone or stand-alone, includes a series of colored lights for visually alerting the called party to an incomi... | 08/01/2006 |
| 7074971 | Recovery of ethylene and propylene from a methanol to olefin reaction system The present invention provides new highly-efficient separation processes and systems for separating polymerization-grade ethylene and propylene from an initial effluent stream comprising ethane, ethylene, propylene, dimethyl ether, and one or more of propane, acetyl... | 07/11/2006 |
| 7060865 | Recovery of C4 olefins from a product stream comprising C4 olefins, dimethyl ether and C5+ hydrocarbons Disclosed is a process for removing DME from a stream containing C4 olefins. The process includes providing a first stream comprising C4 olefins, C5+ hydrocarbons, DME, and methanol. The first stream is separated into a second stream comprising the C4 olefins and th... | 06/13/2006 |
| 7048833 | Method and apparatus for treating oxygenate-containing feeds and their use in conversion of oxygenates to olefins A feed vaporization process and apparatus for oxygenate to olefin conversion is provided which uses a vapor-liquid disengaging drum to separate non-volatiles and/or partial non-volatiles from volatiles in the oxygenate feed and produce a vaporized effluent that is r... | 05/23/2006 |
| 7041199 | Process and device for hydrolytically obtaining a carboxylic acid alcohol from the corresponding carboxylate A process and a device for the catalytic hydrolysis of a carboxylate, e.g., methyl acetate, ethyl acetate, i- or n-propyl acetate, i- or n-butyl acetate, allyl acetate and methyl formate, into the corresponding carboxylic acid and alcohol, by a combination of a pre-... | 05/09/2006 |
| 7038101 | Method for product separation and purification in iso-butylene dimerization process A method for operating a dimerization reactor that receives a hydrocarbon feed and produces an output stream comprising a light hydrocarbon component, a dimer and an alcohol component comprises: (a) separating the first output stream into a top stream containing the... | 05/02/2006 |
