Matches 101 - 150 out of 395 < 1 2 3 4 5 6 7 8 >
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5536887 Process comprising two extractive distillation steps for the production of tertiary ethers from a C.sub.4 or C.sub.5 feedstock  
Process for the production of tertiary ethers (MTBE, ETBE, TAME, ETAE) in which a hydrocarbon cut (1) containing four or five carbon atoms is reacted with methanol or ethanol (2, 3) in a reactor...
5530165 Production of a high purity ether product  
A process for producing a high purity ether product. This process includes utilizing an additive stream, which preferably contains isobutane, to alter compositions of the overhead and bottoms...
5523502 Flexible light olefins production  
A novel process having improved flexibility in olefins production is provided which integrates a deep catalytic cracking process with a steam cracking process, and optionally, also including steps...
5510566 Regenerant recycle process for oxygenate removal  
In methyl tertiary butyl ether (MTBE) plant n-butane is used to regenerate a molecular sieve adsorption bed of an oxygen removal unit, and contaminated n-butane is purified by distillation and...
5504259 Process to convert biomass and refuse derived fuel to ethers and/or alcohols  
A process for conversion of a feedstock selected from the group consisting of biomass and refuse derived fuel (RDF) to provide reformulated gasoline components comprising a substantial amount of...
5504257 Process for producing diisopropyl ether with removal of acid material  
A process for the production of diisopropyl ether where acid is removed, without extraction, from the reactor effluent before being recycled to the reactor or being passed to downstream processing...
5498318 Reaction-distillation apparatus and its use  
A reaction-distillation method is provided in which a chemical reaction and fractionation are conducted in an apparatus having at least one reaction-distillation zone (A,B) including at least one...
5493059 Process for preparing tertiary alkyl ethers and apparatus for reactive distillation  
A process for the preparation of tertiary alkyl ethers, in particular methyl-tert.-butyl-ether (MTBE), from iso-olefins and aliphatic alcohols by means of a fractionation tower is disclosed, in...
5489719 Process for the production of tertiary alkyl ether rich FCC gasoline  
A process is disclosed for the production of alkyl tertiary alkyl ethers in C 4 + hydrocarbon streams rich in isoolefins, typically containing catalyst deactivating amounts of dienes and/or...
5475150 Adsorbent for the separation of ethanol from ethyl tert.-alkyl ether  
The present invention relates to a process for the separation of ethanol from a mixture thereof with ethyl tert.-alkyl ether employing a selective adsorbent comprising a mixture of sodium zeolite Y...
5475162 Acid functionalized organically-bridged polysilsesquioxanes as catalysts for acid catalyzed reactions  
A process of effecting an acid catalyzed reaction wherein a reactant capable of undergoing an acid catalyzed reaction is contacted with an acid functionalized organically-bridged polysilsesquioxane...
5473105 Process for concurrently producing diisopropyl ether and isoproyl ethyl ether  
A process for concurrently producing diisopropyl ether and isopropyl ethyl ether from water, ethanol from an independent source, and propylene, has been developed. The product mixture may be used...
5463134 Paraffin treating process for mercaptan and olefin removal  
Contaminants such as mercaptans, oxygenates and olefins are removed from paraffin-rich feed streams through the use of catalytic distillation performed using an acid catalyst such as a sulphonated...
5457243 Neutralization of crude MTBE effluent streams using solid bases  
Disclosed is a method for removing organic acids and derivatives thereof from a crude methyl tertiary butyl ether (MTBE) stream of the type found in the feed to, or effluent from, a reactor for a...
5453550 Production of tame from coker naphtha  
A process for the production of alkyl tert alkyl ether, comprising the steps of providing a liquid hydrocarbon feedstock containing diolefin in an amount greater than or equal to about 2% wt,...
5446224 Integrated process for producing iso-butene and alkyl tert-butyl ethers  
An integrated process for producing iso-butene and alkyl tert-butyl ethers in which the iso-butene is obtained by dehydrogenation of iso-butane followed by purification by partial condensation plus...
5434327 Process for dimerizing propylene and for converting hexenes into ethers  
Hexenes are produced when propylene is catalytically converted under moderate conditions over chosen small pore zeolite catalysts having small 10-membered ring openings. These chosen catalysts are...
5430197 Recovery of alcohol from hydrocarbon streams  
Excess alcohol, e.g. methanol contained in a C 4 -C 6 hydrocarbon stream is removed in process using less water and energy than a conventional water wash by subjecting the stream to a first...
5424458 Integrated production of propylene oxide and methyl T-butyl ether  
The present invention provides a novel integration of an existing MTBE process unit with new propylene oxide producing facilities whereby through this integration new propylene oxide production is...
5420360 Process for the conversion of C5 linear olefins to tertiary alkyl ethers  
A process is disclosed for producing alkyl tertiary alkyl ether such as TAME from alkanol and hydrocarbon feedstock containing linear olefins, iso-olefins, linear alkanes and iso-alkanes such as C5...
5416245 Synergistic process for the production of methanol  
A synergistic process for the production of methanol comprises electrolysing water to produce hydrogen and oxygen; providing a feed stream of an organic combustible fuel; feeding at least a portion...
5414183 Nitrogen removal from light hydrocarbon feed in olefin isomerization and etherication process  
An improved process is disclosed for the removal of nitrogen compounds from light hydrocarbon streams. Such nitrogen removal enhances the performance of catalytic processes which upgrade light...
5414147 Method for improving conversion of isobutylene in MTBE process  
A method for improving the conversion of isobutylene in the MTBE reaction process while simultaneously producing a substantially methanol-free MTBE utilizes an increased methanol to isobutylene...
5413717 Method of recovering MTBE from wastewater  
Dialkyl ethers having 5 to 7 carbon atoms; e.g. MTBE, and alcohols having 1 to 4 carbon atoms are extracted from wastewater with contaminant-free gasoline. Wastewater saturated with contaminants is...
5414146 Multizone catalytic process  
Porous metallosilicate catalyst (e.g. Zeolite Beta) is active at low temperature for converting lower alkanol (e.g. methanol) and C 4 -C 7 tertiary alkenes to high octane ether product. Such...
5405814 Olefin conversion catalyst regeneration  
An olefin hydration catalyst is regenerated with a non-oxidizing light gas, such as hydrogen. Light olefins, especially propylene, are converted to a mixture of alcohol(s), such as isopropanol...
5399787 Olefin isomerization process using etherification feed isomerization  
In a process for producing tertiary alkyd ethers from an olefinic hydrocarbon feedstock, undesirable normal alkanes are removed from the process by passing at least a portion of a hydrocarbon...
5395981 Hydrocarbon conversion by catalytic distillation  
Ethers suitable for use as high octane oxygenate additives for motor fuels or other compounds such as alcohols or alkylates are produced in a catalytic distillation process wherein a C 4 -plus...
5395982 Continuous isobutylene-assisted aqueous extraction of methanol from methyl tertiary butyl ether  
An impure methyl tertiary butyl ether product contaminated with isobutylene, methanol and water is purified by continuous counter-current contact with water and isobutylene in a counter-current...
5387721 Methyl tertiary butyl ether process  
Methyl tertiary butyl ether (MTBE) is formed by reaction of methanol with tertiary butyl ether in two catalyst beds. A feedstock mixture comprising methanol and tertiary butyl alcohol in a molar...
5382706 Production of alkyl tert alkyl ethers and cation exchange resin for same  
A process for preparing alkyl tert alkyl ethers includes the steps of providing a liquid olefinic hydrocarbon feedstock having a sulfur content, providing an ion exchange resin containing an amount...
5382707 Integrated MTBE process  
There is provided a novel integrated process for producing methyl tertiary butyl ether from a C 4 containing hydrocarbon feedstock comprising passing the feedstock through zones of butadiene...
5382705 Production of tertiary alkyl ethers and tertiary alkyl alcohols  
A process for upgrading a light olefin feed by converting the 1-olefins to higher molecular weight oligomers and the iso-oleins to fuel ethers or alcohols. The process provides substantial...
5378250 Process for production of an ether-rich additive  
A process for the production of an ether-rich additive for gasoline, and more particularly, the production of MTBE, TAME and mixtures thereof from light hydrocarbon streams comprising passing the...
5368691 Reactive distillation process and apparatus for carrying it out  
A reactive distillation process which makes it possible, in the same enclosure, to carry out a catalytic reaction and isolate by distillation the sought product, in which the liquid phase...
5364975 Process for the production of a tertiary alkyl ether comprising a fractionation section  
A process for the preparation of a tertiary alkyl ether, in particular methyl tert. amyl ether (MTAE), is described which comprises reacting, in a reaction section, a charge constituted by a...
5364979 Catalyzed vapor phase process for making alcohols  
A catalyzed, continuous vapor phase process to convert a C 2 or higher alcohol and, optionally, one or more C 1 or higher alcohols, for example methanol and ethanol, to a mixture containing at...
5364976 Alkylation/etherification process  
A process for simultaneously producing C 5 -C 12 alkane(s) and C 5 -C 8 tertiary alkyl ether(s) employs a liquid feed mixture containing (a) at least one C 4 -C 7 isoalkane, (b) at least one...
5362377 Conversion of olefins by catalytic distillation  
Ethers suitable for use as high octane oxygenate additives for motor fuels are produced by a catalytic distillation process wherein a mixture of C 4 -plus isoolefin(s) and an alcohol are recovered...
5354912 Method for the removal of dimethyl ether from methyl tertiary butyl ether  
An isobutylene feed mixture comprising MTBE, isobutylene and methanol is passed through an isobutylene conversion zone to form an isobutylene conversion product comprising unreacted methanol,...
5352846 Process for the production of an olefin-free tert, amyl alkyl ether-rich fraction and a n-pentane rich paraffin fraction  
The simultaneous production of an olefin-free, tert.amyl alkyl, ether-rich fraction an n-pentane-rich paraffin fraction, wherein a charge based on isopentenes is hydrogenated (1) under appropriate...
5345006 Method and apparatus for operating a catalytic distillation process  
A method and apparatus for conducting a catalytic distillation process is provided which allows for maintaining a liquid level in selected portions of the catalyst bed. Three particular processes...
5338889 Alkane rejection in C.sub.4 etherification and isomerization process  
A combination of an etherification process and a process for the isomerization of linear alkenes to isoalkenes uses an adsorptive separation zone for olefin and paraffin separation upstream of the...
5324865 Di-isopropyl ether production  
A process for production of diisopropyl ether by conversion of hydrocarbon feedstock containing propene, propane and C 2 - light gas components, including the steps of: optionally,...
5324866 Integrated process for producing diisopropyl ether from isopropyl alcohol  
The present invention is an integrated isopropyl alcohol (IPA) and diisopropyl ether (DIPE) process. In this process, IPA, substantially free of DIPE, is formed in a hydration reactor by reacting...
5313005 Method for controlling catalytic distillation etherifications  
A process for the etherification of isoolefins with alcohols is provided wherein the reaction occurs simultaneously with separation of the ether product and reactants. To assure proper alcohol...
5313004 Production of alkyl tertiary alkyl, ethers from isoalkanes  
A process is disclosed for integrating isoalkane dehydrogenation with isoalkene/alkanol etherification in a manner that eliminates the need to condense the isoalkene and/or isoalkane components of...
5310506 Process of producing a synthesis gas for methanol synthesis  
In a reforming reactor operated with reactor outlet temperatures from 600° to 1300° C. and under a pressure from 10 to 100 bars, a methane-containing hydrocarbon gas is reacted with oxygen and...
5300696 C4 rejection for etherification and isomerization process  
A combination of an etherification process and a process for the isomerization of linear alkenes to isoalkenes uses an adsorptive separation zone that receives an effluent fraction from the...
5300126 Process for improving olefin etherification catalyst life  
A method is disclosed for the pretreatment of olefinic hydrocarbon feedstock to remove conjugated dienes and/or basic nitrogen compounds that deactivate acidic catalyst particles used in olefin...
Matches 101 - 150 out of 395 < 1 2 3 4 5 6 7 8 >