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| Number | Title | Issue Date |
| 8173851 | Processes for converting gaseous alkanes to liquid hydrocarbons A process for converting gaseous alkanes to olefins, higher molecular weight hydrocarbons or mixtures thereof wherein a gaseous feed containing alkanes is thermally reacted with a dry bromine vapor to form alkyl bromides and hydrogen bromide. Poly-brominated alkanes... | 05/08/2012 |
| 8017822 | Integrated process to coproduce aromatic hydrocarbons and ethylene and propylene An integrated process for producing aromatic hydrocarbons and ethylene and/or propylene and optionally other lower olefins from low molecular weight hydrocarbons, preferably methane, which comprises: (a) contacting at least one low molecular weight alkane, preferabl... | 09/13/2011 |
| 8008535 | Process for converting gaseous alkanes to olefins and liquid hydrocarbons A process for converting gaseous alkanes to olefins and higher molecular weight hydrocarbons wherein a gaseous feed containing alkanes is reacted with a dry bromine vapor to form alkyl bromides and hydrobromic acid vapor. The mixture of alkyl bromides and hydrobromi... | 08/30/2011 |
| 7674941 | Processes for converting gaseous alkanes to liquid hydrocarbons A process for converting gaseous alkanes to olefins, higher molecular weight hydrocarbons or mixtures thereof wherein a gaseous feed containing alkanes is reacted with a dry bromine vapor to form alkyl bromides and hydrobromic acid vapor. The mixture of alkyl bromid... | 03/09/2010 |
| 7560607 | Process for converting gaseous alkanes to liquid hydrocarbons A process for converting gaseous alkanes to liquid hydrocarbons wherein a gaseous feed containing alkanes is reacted with a dry bromine vapor to form alkyl bromides and hydrobromic acid vapor. The mixture of alkyl bromides and hydrobromic acid are then reacted over ... | 07/14/2009 |
| 7361794 | Zone reactor In a method of converting alkanes to their corresponding alcohols and ethers a vessel comprises a hollow, unsegregated interior defined first, second, and third zones. In a first embodiment of the invention oxygen reacts with metal bromide in the first zone to provi... | 04/22/2008 |
| 7348464 | Process for converting gaseous alkanes to liquid hydrocarbons A process for converting gaseous alkanes to liquid hydrocarbons wherein a gaseous feed containing alkanes is reacted with a dry bromine vapor to form alkyl bromides and hydrobromic acid vapor. The mixture of alkyl bromides and hydrobromic acid are then reacted over ... | 03/25/2008 |
| 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 |
| 7317133 | Process for enhanced olefin production The present invention relates to a process for the production of light weight olefins comprising olefins having from 2 to 3 carbon atoms per molecule from an oxygenate feedstock. The process comprises passing the oxygenate feedstock to an oxygenate conversion zone c... | 01/08/2008 |
| 7314964 | Catalytic naphtha cracking catalyst and process A process is disclosed for enhancing the production of light olefins using a catalyst with small pores. The catalyst comprises a molecular sieve having 10 membered rings with channels of limited length. The molecular sieve has a high silica to alumina ratio and has ... | 01/01/2008 |
| 7268265 | Apparatus and process for light olefin recovery The present invention relates to a process and apparatus for the production of light olefins comprising olefins having from 2 to 3 carbon atoms per molecule from a feedstock containing heavier olefins. An intermediate cut from a fractionation column is used as olefi... | 09/11/2007 |
| 7268266 | Process for converting gaseous alkanes to liquid hydrocarbons A process for converting gaseous alkanes to liquid hydrocarbons wherein a gaseous feed containing alkanes is reacted with a dry bromine vapor to form alkyl bromides and hydrobromic acid vapor. The mixture of alkyl bromides and hydrobromic acid are then reacted over ... | 09/11/2007 |
| 7244867 | Process for converting gaseous alkanes to liquid hydrocarbons A process for converting gaseous alkanes to liquid hydrocarbons wherein a gaseous feed containing alkanes is reacted with a dry bromine vapor to form alkyl bromides and hydrobromic acid vapor. The mixture of alkyl bromides and hydrobromic acid are then reacted over ... | 07/17/2007 |
| 7238848 | Method for separating dimethyl ether from an olefin-containing product stream A method for processing an olefin-containing product stream that contains dimethyl ether as a by-product is described. Such a product stream arises, for example, in the synthesis of olefin from methanol. For separation of the dimethyl ether from the product stream, ... | 07/03/2007 |
| 7230150 | Zone reactor In a method of converting alkanes to their corresponding alcohols, ethers, olefins, and other hydrocarbons, a vessel comprises a hollow, unsegregated interior defined first, second, and third zones. In a first embodiment of the invention oxygen reacts with metal hal... | 06/12/2007 |
| 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 |
| 7169293 | Controllable space velocity reactor and process Disclosed is an apparatus and process for controlling space velocity in a fluidized catalytic conversion reactor. The catalyst flux rate can be adjusted during the process of the reaction to adjust the space velocity and maintain a fast fluidized flow regime therein... | 01/30/2007 |
| 7161050 | Method and apparatus for synthesizing olefins, alcohols, ethers, and aldehydes A reactant selected from the group consisting of alkanes, alkenes, alkynes, dienes, and aromatics is reacted with a halide selected from the group including chlorine, bromine, and iodine to form a first reaction product. The first reaction product is reacted with a ... | 01/09/2007 |
| 7148390 | Integrated process for synthesizing alcohols, ethers, aldehydes, and olefins from alkanes Alcohols, ethers, aldehydes, and olefins are manufactured from alkanes by mixing an alkane and a halogen selected from the group including chlorine, bromine, and iodine in a reactor to form alkyl halide and hydrogen halide. The alkyl halide only or the alkyl halide ... | 12/12/2006 |
| 7091391 | Methane to olefins The specification discloses a process for the production of olefins, including ethylene, propylene and butenes, from methane, the process comprising first, second and third reaction steps operated in tandem. In the first reaction step, hydrogen chloride, perchloroet... | 08/15/2006 |
| 7074979 | Processing a contaminated oxygenate-containing feed stream in an oxygenate to olefin reaction system 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 low-volatiles from volatiles in the oxygenate feed and produce a vaporized effluent that is reduced ... | 07/11/2006 |
| 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 |
| 7019182 | Method of hydrocarbon preservation and environmental protection Gas phase hydrocarbons resulting from the operation of offshore petroleum wells are converted into corresponding liquid products which are mixed with liquid phased hydrocarbons resulting from operation of the offshore petroleum well for delivery therewith. ... | 03/28/2006 |
| 6919491 | Process for preparing short chain alkyl aromatic compounds A process for producing alkyl aromatic compounds which comprises contacting at least one aromatic compound with at least one alkylating agent or transalkylating agent possessing at least one aliphatic group having from 1 to 5 carbon atoms under alkylation or transal... | 07/19/2005 |
| 6909026 | Process for liquid phase aromatics alkylation comprising in-situ catalyst reactivation with polar compounds The catalyst becomes at least partially deactivated by sorbing catalyst poisons present in the feed during a process for alkylating aromatics by contacting a feed containing benzene, toluene, xylenes, alkylbenzenes, naphthalene or substituted naphthalenes under liqu... | 06/21/2005 |
| 6844478 | Substituted polycyclic cyclopentadienes and method for their preparation New polycyclic cyclopentadiene compounds having the formula (II) wherein the various substituents and symbols R1, R2, R3, R4, R5, R6, R7, Z1 and Z2 and “n” have th... | 01/18/2005 |
| 6660812 | Production of olefin derivatives Disclosed is a system of making an olefin derivative from a dilute olefin feed. Dilute olefin is sent to an olefin reaction unit to form an olefin derivative product. The olefin derivative product is recovered from the reaction unit while a vent stream is... | 12/09/2003 |
| 6489528 | Aromatics production from oxygenated hydrocarbons A catalyst system comprising a first solid material comprising a silicoaluminophosphate and a second solid material comprising a zeolite and a compound containing zinc and a metal selected from the group consisting of Group IIIA and Group VIB, and a metho... | 12/03/2002 |
| 6187982 | Process for converting dienes and oxygenates to para-xylene and light olefins A process useful in steam cracking is disclosed for selectively converting a feed comprising C4 + dienes and oxygenate to a product comprising increased C2 + monoolefins and para-xylene levels by contacting said feed under diolefin c... | 02/13/2001 |
| 5977422 | Organoaluminum catalysis of alkylation reactions This invention relates to an improved catalytic process for the alkylation of benzene or substituted benzene with alkyl halides for the continuous production of diarylalkanes or substituted derivatives thereof using ethylaluminum dichloride or methylalumi... | 11/02/1999 |
| 5952537 | Preparation of cycloalkylacetylene compounds using dialkylaminomagnesium halide or bis(dialkylamino)magnesium The process of invention reacts an alkynyl halide with a mixture that includes a dialkylaminomagnesium halide or a bis(dialkylamino)magnesium compound to produce a cycloalkylacetylene compound. Preferably, the dialkylaminomagnesium halide compound is of t... | 09/14/1999 |
| 5936134 | Method for obtaining storable products of calorific energy and synthetical oils, by processing waste rubber materials with coal A method for producing synthetical oils and storable products of calorific energy, by co-processing waste rubber materials, especially waste tires, and coal optionally in the presence of a material containing Fe as a catalyst, comprising the steps of mixi... | 08/10/1999 |
| 5925237 | Method for inhibiting the rate of coke formation during the zeolite catalyzed aromatization of hydrocarbons The rate of coke formation during the aromatization of gasoline boiling range hydrocarbons in which the hydrocarbons are contacted with a zeolite catalyst is significantly reduced by providing a concentration of a silyating agent in the hydrocarbon feed.... | 07/20/1999 |
| 5800696 | Method for inhibiting the rate of coke formation during the zeolite catalyzed aromatization of hydrocarbons The rate of coke formation during the aromatization of gasoline boiling range hydrocarbons in which the hydrocarbons are contacted with a zeolite catalyst is significantly reduced by providing a concentration of a silylating agent in the hydrocarbon feed.... | 09/01/1998 |
| 5679879 | Process for the production of substituted aromatic hydrocarbons from corresponding anilines by dediazoniation Substituted aromatic hydrocarbons, e.g. 1,3-difluorobenzene, are produced by dediazoniation of the corresponding aromatic primary amines by converting them into a corresponding diazonium salt in the presence of hypophosphorous acid and a metal catalyst so... | 10/21/1997 |
| 5656149 | Hydrocarbon conversion processes using zeolite SSZ-41 The present invention relates to new crystalline zeolite SSZ-41 which comprises oxides of (1) silicon or a mixture of silicon and germanium, and (2) zinc, said zinc being present in an amount from about 2 wt % to about 5 wt % of zinc metal based on the to... | 08/12/1997 |
| 5602289 | Conversion of methanol to gasoline This invention relates to a process for converting alkoxy compounds into hydrocarbon compounds, mostly in the gasoline boiling range. This process proceeds with low heat exchange duty requirements for heating the alkoxy compounds and recycle streams used ... | 02/11/1997 |
| 5371309 | Vacancy titanates intercalated with cationic hydroxy aluminum complexes There is provided a vacancy titanate intercalated with a cationic hydroxy aluminum complex, such as a Keggin ion. A method for making this material and a process for using this material as a catalyst are also provided.... | 12/06/1994 |
| 5254767 | Highly siliceous porous crystalline material and its use in conversion of oxygenates A new zeolite, designated ZSM-22, is disclosed and claimed. The new zeolite has the composition, in the anhydrous state, expressed in terms of mole ratios of oxides as follows: (x)Q2 O:(y)M2/n O:(z)L2 O3 :100SiO... | 10/19/1993 |
| 5151393 | Staged process for reactivation of spent zeolite catalyst particles The invention comprises the discovery has been made that the reactivation of spent medium pore, shape selective metallosilicate catalyst particles can be enhanced by carrying out the removal of deactivating coke and carbonaceous deposits on the surface an... | 09/29/1992 |
