| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 585467000 |
Using metal, metal oxide, or hydroxide catalyst
| 73 |
| 585448000 |
With preliminary treatment of feed
| 17 |
| 585466000 |
Using P-containing catalyst
| 14 |
| 585449000 |
Plural alkylation stages
| 7 |
| 585447000 |
With specified flow rate through reactor or flow procedure within or at entrance to reactor
| 7 |
| 585454000 |
Feed other than hydrocarbon, hydroxy, monohalide, or ether
| 7 |
| 585457000 |
Using organometallic compound catalyst
| 6 |
| 585455000 |
Resulting side-chain restricted to more than five C atoms, e.g., "detergent alkylate", etc. | 5 |
| 20110077442 | Aromatic Alkylation Catalyst - A aromatic alkylation catalyst, processes for producing the catalyst, and aromatic alkylation processes employing the catalysts are disclosed. The catalyst comprises a UZM-8 zeolite and nitrogen, and the catalyst has a nitrogen to zeolite aluminum molar ratio of at least about 0.015. In an exemplary alkylation process, the catalyst provides improved product yield. | 03-31-2011 |
| 20110144402 | ALKYLATION PROCESS USING CATALYSTS WITH LOW OLEFIN SKELETAL ISOMERIZATION ACTIVITY - A process is presented for the production of linear alkylbenzenes. The process includes contacting an aromatic compound with an olefin in the presence of a selective zeolite catalyst. The catalyst includes two zeolites combined to improve the linearity, and to produce detergent grade LAB. The two zeolites are selected to limit skeletal isomerization while producing a desired 2-phenyl content for the LAB. | 06-16-2011 |
| 20110207981 | ALKYLATION PROCESS USING CATALYSTS WITH LOW OLEFIN SKELETAL ISOMERIZATION ACTIVITY - A process is presented for the production of linear alkylbenzenes. The process includes contacting an aromatic compound with an olefin in the presence of a selective zeolite catalyst. The catalyst includes two zeolites combined to improve the linearity, and to produce detergent grade LAB. The two zeolites are selected to limit skeletal isomerization while producing a desired 2-phenyl content for the LAB. | 08-25-2011 |
| 20110245563 | AROMATIC ALKYLATION PROCESS USING UZM-37 ALUMINOSILICATE ZEOLITE - A new family of crystalline aluminosilicate zeolites has been synthesized. These zeolites are represented by the empirical formula. | 10-06-2011 |
| 20140046108 | METHOD FOR CONTROLLING 2-PHENYL ISOMER CONTENT OF LINEAR ALKYLBENZENE AND CATALYST USED IN THE METHOD - A method for controlling 2-isomer content in linear alkylbenzene obtained by alkylating benzene with olefins and catalyst used in the method. | 02-13-2014 |
| 585450000 |
With plural separation procedures | 4 |
| 20150299070 | Phenol Removal in Paraxylene Recovery Process - The invention is directed to purification of an aromatic hydrocarbon stream including selective removal of phenol from a process stream comprising aromatic hydrocarbon mixtures, especially aromatic hydrocarbon mixtures that contain higher-than-equilibrium paraxylene, by contact with suitable adsorbents, to provide a product stream having lower concentration of phenol than said process stream. | 10-22-2015 |
| 20100048970 | REFORMATE BENZENE REDUCTION VIA ALKYLATION - A process for reformate benzene reduction, the process including: feeding a light reformate fraction, an olefin feed, and an alkylation catalyst to an alkylation reaction zone; contacting the light reformate fraction and the olefin feed in the presence of the alkylation catalyst in the alkylation reaction zone to convert at least a portion of the benzene and the olefin to a monoalkylate; recovering a catalyst fraction from an alkylation reaction zone effluent; and recovering a light reformate product having a reduced benzene content. | 02-25-2010 |
| 20120316375 | Production of Para-Xylene - The invention is a process for producing paraxylene, benzene and/or toluene is alkylated with methanol in the presence of a catalyst under conditions effective to convert said benzene and/or toluene to xylene and produce a product stream containing water, xylene and one or more phenolic impurities. The said product stream is separated into a water-rich stream and a xylene-rich stream containing one or more phenolic impurities and at least a portion of the xylene-rich stream is contacted with an aqueous solution of a base under conditions to remove at least some of the phenolic impurities from the xylene-rich stream portion. | 12-13-2012 |
| 20130165725 | PROCESS FOR THE PREPARATION OF AN AROMATIC PRODUCT - A process for the preparation of an aromatic product comprising xylene, which process comprises the steps of: a) converting an oxygenate feedstock in an oxygenate-to-olefins conversion system, comprising a reaction zone in which an oxygenate feedstock is contacted with an oxygenate conversion catalyst under oxygenate conversion conditions, to obtain a conversion effluent comprising benzene, toluene, xylene and olefins; b) separating at least a portion of the benzene and toluene from the conversion effluent to form an aromatics containing stream; c) separating the olefins from the conversion effluent; d) separating xylene from the conversion effluent to produce a xylene product stream; and e) recycling at least a portion of the aromatics containing stream to step a). | 06-27-2013 |
| 585452000 |
Attachment to side-chain, e.g., telomerization, etc. | 4 |
| 20100145121 | SYNTHESIS OF PROPYLBENZENE FROM TOLUENE AND ETHYLENE - Methods are provided for producing alkylbenzenes, such as propylbenzene, from aromatics, such as toluene, and alkenes, such as ethylene. Such methods comprise combining the toluene with about 100 ppm to about 350 ppm water and alkali metal catalyst, activating the catalyst at about 18O° C. to about 220° C., adding the ethylene and conducting the synthesis reaction at about 130° C. to about 15O° C. | 06-10-2010 |
| 20120157739 | METHODS FOR REMOVING UNSATURATED ALIPHATIC HYDROCARBONS FROM A HYDROCARBON STREAM USING AN ACIDIC MOLECULAR SIEVE - Disclosed is a method for removing unsaturated aliphatic compounds from a hydrocarbon feed stream by contacting the hydrocarbon feed stream with an acidic molecular sieve to produce a hydrocarbon effluent stream having a lower unsaturated aliphatic content relative to the hydrocarbon feed stream. The hydrocarbon feed stream comprises an aromatic compound, a nitrogen compound, and an unsaturated aliphatic compound. | 06-21-2012 |
| 20120259148 | Process For The Alkylation Of Organic Compounds - The present invention relates to a process for the alkylation of an organic compound comprising: (a) providing a catalyst comprising one or more zeolitic materials having a BEA framework structure, wherein the BEA framework structure comprises YO | 10-11-2012 |
| 20160046543 | PROCESS FOR PREPARATION OF N-PROPYL BENZENE - Disclosed is a process for preparation of n-propyl benzene. The process gives high selectivity and yield of n-propyl benzene by single step catalytic alkylation that involves contacting a mixture of aromatic hydrocarbon having an active hydrogen on a saturated α-carbon, such as toluene, and an alkene, such as ethylene, in presence of a metal catalyst, a solid support, and an initiator. Following the alkylation, aqueous and organic phases are separated from a reaction mixture. The aqueous phase is separated for recovery of the catalyst, the solid support, and un-reacted aromatic hydrocarbon (e.g., toluene); and the organic phase is separated for obtaining n-propyl benzene and byproduct. Thus, the catalyst phase can be recovered and recycled in the next alkylation reaction. Also, the process facilitates recovery and recycling of the byproduct for the better selectivity. | 02-18-2016 |
| 585459000 |
Using Al halide catalyst | 3 |
| 20090005622 | METHOD OF MAKING LINEAR ALKYLBENZENES - Methods and systems for the production of linear alkylbenzens are described herein. The methods and systems incorporate the novel use of a high shear device to promote dispersion and mixing of one or more olefins (e.g. propylene) with an aromatic. The high shear device may allow for lower reaction temperatures and pressures and may also reduce reaction time with existing catalysts. | 01-01-2009 |
| 20110201863 | METHOD OF PRODUCING SYNTHETIC ZEOLITE CATALYST AND METHOD OF PRODUCING HIGH-PURITY PARAXYLENE WITH A CATALYST PRODUCED BY SUCH A METHOD - This invention relates to a method wherein a high-purity paraxylene can be produced efficiently by using a catalyst having a molecular sieving action (or shape selectivity) and being excellent in the catalytic activity without isomerization and adsorption-separation steps. More particularly, it relates to a method of producing a high-purity paraxylene, characterized in that MFI type zeolite having a primary particle size of not more than 100 μm, a structure defining agent and silica material having an average particle size of not less than 10 nm but less than 1.0 μm are used as a starting material, and a synthetic zeolite catalyst produced by subjecting the MFI type zeolite to a coating treatment with an aqueous solution obtained by mixing so as to satisfy X×Y<0.05 (wherein X is a concentration of the silica material (mol %) and Y is a concentration of the structure defining agent (mol %)) is used in the alkylation or disproportionation of at least one of benzene and toluene as a starting material. | 08-18-2011 |
| 20170233309 | Aromatic Alkylation Using Chemically-Treated Solid Oxides | 08-17-2017 |
| 585462000 |
Using halogen-containing catalyst | 1 |
| 20140100401 | CATALYST FOR THE ALKYLATION OF AROMATIC HYDROCARBONS - The present invention relates to catalyst composition prepared by a method wherein an aluminosilicate zeolite having its pores filled with templating agent with a specific organic silicon compound to deposit said organic silicon compound on the surface of the zeolite to provide an organosilicon treated catalyst precursor; and calcining the organosilicon treated catalyst precursor under conditions sufficient to remove the templating agent from the zeolite. Furthermore, the present invention relates to a method for preparing said catalyst composition and a process for alkylation of an aromatic hydrocarbon comprising contacting the catalyst composition of the present invention with a feed stream comprising said aromatic hydrocarbon and an alkylating agent under aromatic alkylation conditions. | 04-10-2014 |
| Entries |
| Document | Title | Date |
|---|
| 20100130800 | Liquid-Liquid Separation Process Via Coalescers - A process for separating an ionic liquid from hydrocarbons employs a coalescer material having a stronger affinity for the ionic liquid than the hydrocarbons. The coalescer material can be a high surface area material having a large amount of contact area to which ionic liquid droplets dispersed in the hydrocarbons may adhere. The process includes feeding a mixture comprising ionic liquid droplets dispersed in hydrocarbons to a coalescer comprising the coalescer material. The process further includes a capture step involving adhering at least a portion of the ionic liquid droplets to the coalescer material to provide captured droplets and a coalescing step involving coalescing captured droplets into coalesced droplets. After the capture and coalescence steps, the coalesced droplets are allowed to fall from the coalescer material to separate the ionic liquid from the hydrocarbons and provide a hydrocarbon effluent. | 05-27-2010 |
| 20110092756 | Production of Para-Xylene by the Methylation of Benzene and/or Toluene - In a process for the production of para-xylene, an aromatic feedstock comprising toluene and/or benzene is reacted with methanol under alkylation conditions in a reactor in the presence of a fluidized bed of solid catalyst particles to produce a vapor phase effluent comprising para-xylene, water, unreacted toluene and/or benzene and solid catalyst fines. The vapor phase effluent is contacted with a liquid hydrocarbon quench stream under conditions to condense a minor portion of the vapor phase effluent and produce a condensate which contains at least some of the catalyst fines and which is substantially free of an aqueous phase. The condensate containing said catalyst fines is then separated from the remainder of the vapor phase effluent. | 04-21-2011 |
| 20110130608 | Alkylation of Aromatic Substrates and Transalkylation Process - The present invention is a process for the alkylation of an aromatic substrate comprising: | 06-02-2011 |
| 20110178351 | Hydrocarbon Conversion Process Using EMM-10 Family Molecular Sieve - This disclosure relates to a process for hydrocarbon conversion comprising contacting, under conversion conditions, a feedstock suitable for hydrocarbon conversion with a catalyst comprising an EMM-10 family molecular sieve. | 07-21-2011 |
| 20110178352 | Process For Preparing Ethylbenzene Using Vapor Phase Alkylation And Liquid Phase Transalkylation - Disclosed are ethylbenzene processes in which a series-arranged or combined vapor phase alkylation/transalkylation reaction zone is retrofitted to have a vapor phase alkylation reactor and a liquid phase transalkylation reactor, and in which a parallel-arranged vapor phase alkylation reactor and vapor phase transalkylation reactor is retrofitted to have a vapor phase alkylation reactor and liquid phase transalkylation reactor, wherein the xylenes content of the ethylbenzene product is less than 700 wppm. | 07-21-2011 |
| 20110178353 | Liquid Phase Alkylation Process - The present invention provides an improved process for conversion of feedstock comprising an alkylatable aromatic compound and an alkylating agent to desired alkylaromatic conversion product under at least partial liquid phase conversion conditions in the presence of specific catalyst comprising a porous crystalline material, e.g., a crystalline aluminosilicate, and binder in the ratio of crystal/binder of from about 20/80 to about 60/40. The porous crystalline material of the catalyst may comprise a crystalline molecular sieve having the structure of Beta, an MCM-22 family material, e.g., MCM-49, or a mixture thereof. | 07-21-2011 |
| 20110201861 | Process for Making Crystalline Metallosilicates - The present invention relates to a process for making a crystalline metallosilicate composition and comprising crystallites having an inner part (the core) and an outer part (the outer layer or shell) such that: | 08-18-2011 |
| 20120004484 | UZM-7 ALUMINOSILICATE ZEOLITE, METHOD OF PREPARATION AND PROCESSES USING UZM-7 - A new family of crystalline aluminosilicate zeolites has been synthesized designated UZM-7. These zeolites are represented by the empirical formula. | 01-05-2012 |
| 20120095276 | NU-85 MOLECULAR SIEVE HAVING A LARGE PORE VOLUME AND PROCESSES FOR PREPARING THE SAME - Disclosed are a novel NU-85 molecular sieve having a specific surface area ranging from about 405 m | 04-19-2012 |
| 20120296143 | Process for the Purification of Paraxylene - The proposed process uses crystallization technology to purify paraxylene simultaneously of large concentrations of C8 aromatics and also small concentrations of oxygenated species. | 11-22-2012 |
| 20130267748 | Catalyst Regeneration Process - This disclosure relates to a process for regenerating a catalyst composition to improve the aging rate in subsequent cycles. | 10-10-2013 |
| 20130331626 | PROCESS FOR REDUCING THE BENZENE CONTENT OF GASOLINE - In a process for alkylating benzene contained in a benzene-containing refinery gasoline stream, the benzene-containing refinery gasoline stream is contacted with an alkylating agent selected from one or more C2 to C5 olefins in at least one alkylation reaction zone under alkylation conditions to produce an alkylated effluent which has reduced benzene content as compared with said refinery gasoline stream and is essentially free of said alkylating agent. An aliquot of the alkylated effluent is then recycled to the one at least one alkylation reaction zone such that the molar ratio of alkylatable aromatic compounds to said alkylating agent in the combined refinery gasoline and recycle streams introduced into the at least one alkylation reaction zone is at least 1.0:1. | 12-12-2013 |
| 20140066678 | ALKYLATION PROCESS WITH RECYLE OF HYDROGEN AND RECOVERY OF HYDROGEN CHLORIDE - We provide processes, and process units for practicing the processes, comprising
| 03-06-2014 |
| 20140296598 | Purification of Aromatic Hydrocarbon Streams - The invention is directed to a process for the removal of olefin impurities from a feedstream comprising greater than equilibrium amounts of paraxylene by contact of the feedstream with a bed of solid acid catalyst to produce a product comprising reduced olefin impurities (when compared with said feedstream), said process comprising at least one of (i) reduced bed temperature on startup, and (ii) reduced flow rate on startup, wherein, in embodiments, there is a reduction in side reactions such as isomerization and/or transalkylation and/or disproportionation of paraxylene, when compared with conventional startup procedures. | 10-02-2014 |
