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| Number | Title | Issue Date |
| 8178736 | Process and system for the production of isoprene Disclosed herein is a process for producing isoprene that includes reacting a mixed C4 metathesis feed stream comprising isobutylene and at least one of 1-butene and 2-pentene in a first metathesis reactor in the presence of a first metathesis catalyst un... | 05/15/2012 |
| 8153851 | Integrated propylene production A process for the production of propylene, the process including: fractionating a hydrocarbon stream comprising n-butenes, isobutylene, and paraffins into at least two fractions including a light C4 fraction comprising isobutylene and a heavy C4 | 04/10/2012 |
| 8119849 | Propylene production A propylene production process is disclosed. The process comprises (a) reacting a feed stream comprising isobutene in the presence of a skeletal isomerization catalyst to obtain an isomerized stream comprising C4 olefins; and (b) reacting the isomerized s... | 02/21/2012 |
| 8084659 | Hexene upgrading Embodiments disclosed herein provide processes for upgrading the hexene stream to valuable end products, including ethers, high purity 1-hexene, and, alternatively, high purity isohexene. Hexene upgrading may be performed in embodiments disclosed herein by first rem... | 12/27/2011 |
| 8080698 | Method for olefin production from butanes and cracking refinery hydrocarbons and alkanes Systems and processes for producing one or more olefins are provided. A feed containing C4 compounds can be dehydrogenated to provide a first product containing butene. At least a portion of the first product can be bypassed around a methyl-tert-butyl-eth... | 12/20/2011 |
| 7915461 | Process for the conversion of natural gas to hydrocarbon liquids A process for converting natural gas to liquid hydrocarbons comprising heating the gas through a selected range of temperature for sufficient time and/or combustion of the gas at a sufficient temperature and under suitable conditions for a reaction time sufficient t... | 03/29/2011 |
| 7915465 | Process for the conversion of natural gas to hydrocarbon liquids A process for converting natural gas to liquid hydrocarbons comprising heating the gas through a selected range of temperature for sufficient time and/or combustion of the gas at a sufficient temperature and under suitable conditions for a reaction time sufficient t... | 03/29/2011 |
| 7915463 | Process for the conversion of natural gas to hydrocarbon liquids A process for converting natural gas to liquid hydrocarbons comprising heating the gas through a selected range of temperature for sufficient time and/or combustion of the gas at a sufficient temperature and under suitable conditions for a reaction time sufficient t... | 03/29/2011 |
| 7915466 | Process for the conversion of natural gas to hydrocarbon liquids A process for converting natural gas to liquid hydrocarbons comprising heating the gas through a selected range of temperature for sufficient time and/or combustion of the gas at a sufficient temperature and under suitable conditions for a reaction time sufficient t... | 03/29/2011 |
| 7915464 | Process for the conversion of natural gas to hydrocarbon liquids A process for converting natural gas to liquid hydrocarbons comprising heating the gas through a selected range of temperature for sufficient time and/or combustion of the gas at a sufficient temperature and under suitable conditions for a reaction time sufficient t... | 03/29/2011 |
| 7915462 | Process for the conversion of natural gas to hydrocarbon liquids A process for converting natural gas to liquid hydrocarbons comprising heating the gas through a selected range of temperature for sufficient time and/or combustion of the gas at a sufficient temperature and under suitable conditions for a reaction time sufficient t... | 03/29/2011 |
| 7875755 | Cracking C5+ paraffins to increase light olefin production A process for increasing the light olefin production from light paraffins is presented. The process includes separating paraffins from olefin streams and separately processing the paraffins. ... | 01/25/2011 |
| 7868216 | Production of propylene employing dimerising ethylene to 1-butene, hydroisomerization to 2-butene and metathesis by ethylene A process for producing high purity propylene comprises: a step for dimerizing ethylene to 1-butene; a step for hydroisomerizing 1-butene to 2-butenes; and a step for metathesis of 2-butenes by eth... | 01/11/2011 |
| 7816572 | Propylene and isoprene production A process for producing propylene and isoprene from a feed stream comprising 1-butene and isobutene is disclosed. The feed stream is reacted in a catalytic distillation reactor containing an olefin isomerization catalyst to produce an overhead stream comprising 2-bu... | 10/19/2010 |
| 7795484 | Process for the manufacture of base oil A feedstock originating from renewable sources is converted to branched and saturated hydrocarbons without heteroatoms in the base oils distillation range by converting the fatty acids to olefins, which are subsequently oligomerised. ... | 09/14/2010 |
| 7763763 | Olefins production process The present invention provides a process for the production of olefins wherein a synthetic naphtha is passed to a steam cracker. The synthetic naphtha is derived from the fractionation of a Fischer-Tropsch product stream. The Fischer-Tropsch product stream may be se... | 07/27/2010 |
| 7728185 | Integration of olefin cracking with metathesis to increase light olefins production A process for increasing the propylene yields for hydrocarbon cracking processes. The process includes adding using alkylation of the C4s coming from the hydrocarbon cracker, and passing larger olefins to an olefin cracking unit. ... | 06/01/2010 |
| 7692053 | Process for obtaining crude 1,3-butadiene from a Ccut 1,3-butadiene is obtained by extractive distillation with a selective solvent from a C4 cut comprising C4 acetylenes as secondary components in a dividing wall column having a bottom evaporator, in which a dividing wall is disposed in the longi... | 04/06/2010 |
| 7687671 | Integrated oxygenate conversion and product cracking Improved processing of an oxygenate-containing feedstock for increased production or yield of light olefins. Such processing involves oxygenate conversion to olefins and subsequent cracking of heavier olefins wherein at least a portion of the products from each of t... | 03/30/2010 |
| 7667085 | Process for the conversion of natural gas to hydrocarbon liquids A process for converting natural gas to liquid hydrocarbons comprising heating the gas through a selected range of temperature for sufficient time and/or combustion of the gas at a sufficient temperature and under suitable conditions for a reaction time sufficient t... | 02/23/2010 |
| 7592496 | Light olefin production via dimethyl ether Improved processing for the production of light olefins is provided involving synthesis gas conversion to form an effluent including product dimethyl ether, subsequent separation of the product dimethyl ether and conversion thereof to the desired light olefins. The ... | 09/22/2009 |
| 7589244 | Process for the production of propylene from a feed comprising olefins containing four and/or five carbon atoms with co-production of desulphurized gasoline with a high octane number For producing propylene and co-producing desulphurized gasoline with a high octane number from a catalytically cracked gasoline cut, and a steam cracking C4/C5 cut, conduct at least one one-step oligocracking stage, a selective hydrogenation stage for FCC gasoline a... | 09/15/2009 |
| 7550638 | Integrated cracking and metathesis process An integrated method that comprises a hydrocarbon thermal cracking operation to form at least one olefin product, coupled with dimerization and metathesis operations, the dimerization operation forming additional feed material for the metathesis operation, and the m... | 06/23/2009 |
| 7462752 | Process to convert linear alkanes into alpha olefins This invention provides for a process to convert branched or linear alkanes to branched or linear alpha olefins (AO) of the same carbon number. The process comprises the steps of: a) halogenating linear alkanes, branched alkanes, or a mixture of linear and branched ... | 12/09/2008 |
| 7425658 | Process for producing 1-octene from butadiene Method for producing 1-octene from butadiene by dimerizing and alkoxylating butadiene in the presence of one or more alkoxy substituted phosphine ligands under alkoxydimerization conditions with an alkoxydimerization catalyst, the alkoxydimerization conditions being... | 09/16/2008 |
| 7420096 | Olefin oligomerization Limiting the sulphur level in olefin feedstocks to zeolite-catalysed oligomerization enhances selectivity to trimer and catalyst life and activity. ... | 09/02/2008 |
| 7414165 | Oligomerization process In a process for oligomerizing an olefinic hydrocarbon feedstock comprising sulfur-containing molecules, the feedstock is contacted in the absence of hydrogen with a first metal oxide catalyst at a temperature in excess of 150° C. and then is contacted under olefin... | 08/19/2008 |
| 7411105 | Process and installation for the oligomerization of olefins that use a membrane separation This invention relates to a process for the oligomerization of olefins that have 2 to 6 carbon atoms comprising at least: a) One reaction stage in which a first effluent that comprises oligomers, paraffins and olefins that have not... | 08/12/2008 |
| 7411107 | Alkene separation process A process for the oxidation of a C2 to C4 alkane to produce the corresponding alkene and carboxylic acid which process comprises separation of the alkene from a mixture of the alkene, the alkane and oxygen by absorption in a metallic salt solut... | 08/12/2008 |
| 7408094 | Process for the production of olefins A process for the production of olefins from a hydrocarbon comprising the steps of: a) passing a first feed stream comprising gaseous reactants to a first reaction zone wherein said gaseous reactants react exothermically to provide a product stream b) producing a mi... | 08/05/2008 |
| 7402718 | 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... | 07/22/2008 |
| 7378563 | Molecular sieve compositions, catalysts thereof, their making and use in conversion processes The invention relates to a conversion process of a feedstock, preferably an oxygenated feedstock, into one or more olefin(s), preferably ethylene and/or propylene, in the presence of a molecular sieve catalyst composition that includes a molecular sieve and a Group ... | 05/27/2008 |
| 7371909 | Method for producing 1-olefins using palladium carbene compounds The invention relates to a process 1-olefins by telomerization of compounds having conjugated double bonds with a telogen in the presence of a noble metal telomerization catalyst, hydrogenation of the telomer and cleavage of the hydrogenated intermediate. Use of the... | 05/13/2008 |
| 7371916 | Conversion of an alcoholic oxygenate to propylene using moving bed technology and an etherification step The average propylene selectivity per on-stream cycle of an alcoholic oxygenate to propylene (OTP) process using one or more fixed beds of a dual-function oxygenate conversion catalyst is substantially enhanced by the use of a feed pretreatment step involving a cata... | 05/13/2008 |
| 7368621 | Method for producing 1-octene from crack-C The invention relates to a process for preparing 1-octene from a C4 fraction from a cracker by telomerization of the 1,3-butadiene present in the C4 fraction from a cracker by means of methanol in the presence of a catalyst, hydrogenation of th... | 05/06/2008 |
| 7368622 | Process for the preparation of 1-octene Process in two steps for the preparation of 1-octene starting from butadiene which comprises: a first step (a) in which the bis-hydrodimerization of butadiene to 1,7-octadiene is effected in the presence of a catalyst based on a palladium complex containing one or m... | 05/06/2008 |
| 7368623 | Process for producing 1-octene from butadiene in the presence of titanium catalysts A method is described for the preparation of 1-octene starting from butadiene, wherein in a first step (a) the bis-hydrodimerization of butadiene to 1,7-octadiene is effected in the presence of a catalyst based on palladium containing one or more tri-substituted mon... | 05/06/2008 |
| 7358411 | Hydrocracking of diphenylalkanes The invention relates to a hydrocracking process involving the steps of reacting a diphenyl alkane having a formulation of R1R2C(Ph)-(C)n(H)m-C(Ph)R3R4 with hydrogen using a catalyst containing a metal selected from the group consisting of Group IB and Group VIII me... | 04/15/2008 |
| 7355087 | Production of 1-alkenes from mixed olefin streams using catalytic distillation A catalytic distillation process for isomerizing and separating 1-alkenes from a mixed alkene stream. The process comprises contacting a mixed alkene stream comprising the 1-alkene and homologs thereof with a supported isomerization catalyst under isomerization/dist... | 04/08/2008 |
| 7354883 | Catalyst and method for the production of 1-olefins from 2-hydroxylkanes The present invention relates to a process for preparing 1-olefins from 2-hydroxyalkanes by catalytic elimination of water under nonisomerizing conditions and to a catalyst which is particularly well-suited for this process and formally comprises yttrium oxide (Y | 04/08/2008 |
