Abstract:
A method for converting an alcohol to a hydrocarbon, the method comprising contacting said alcohol with a metal-loaded zeolite catalyst at a temperature of at least 100° C. and up to 550° C., wherein said alcohol can be produced by a fermentation process, said metal is a positively-charged metal ion, and said metal-loaded zeolite catalyst is catalytically active for converting said alcohol to said hydrocarbon.
Abstract:
An alkylaromatics isomerisation catalyst, which catalyst comprises at least 50 wt% of an inorganic binder; at least 0.01 wt% of a Group VIII metal and 1 - 9 wt % ZSM- 12 zeolite wherein the silica to alumina molar ratio (SAR) of the ZSM- 12 zeolite is in the range of from 60 to 200, and a process for the isomerisation of alkylaromatics to provide a reaction mixture, said process comprising contacting a hydrocarbon stream comprising alkylaromatics with such catalyst.
Abstract:
This invention relates to process for producing biphenyl esters, the process comprising: (a) contacting a feed comprising toluene, xylene or mixtures thereof with hydrogen in the presence of a hydroalkylation catalyst to produce a hydroalkylation reaction product comprising (methylcyclohexyl)toluene, wherein the hydroalkylation catalyst comprises: 1) binder present at 40 wt % or less (based upon weight of final catalyst composition), 2) a hydrogenation component present at 0.2 wt % or less (based upon weight of final catalyst composition), and 3) an acidic component comprising a molecular sieve having a twelve membered (or larger) ring pore opening, channel or pocket and a largest pore dimension of 6.0 angstroms or more present at 60 wt % or more, (based upon weight of final catalyst composition); (b) dehydrogenating the hydroalkylation reaction product using a dehydrogenation catalyst to produce a dehydrogenation reaction product comprising a mixture of methyl-substituted biphenyl compounds; (c) contacting at the dehydrogenation reaction product with an oxidizing gas to convert the methyl-substituted biphenyl compounds to biphenyl carboxylic acids; and (d) reacting the biphenyl carboxylic acids with one or more C1 to C14 alcohols to produce biphenyl esters.
Abstract:
The present invention relates to a catalyst product for cracking of heavy hydrocarbon feed stocks predominantly into light olefins and processes for preparing the catalyst. More specifically the present invention relates to a process of preparing a Fluid Catalytic Cracking (FCC) catalyst additive composition. The FCC catalyst additive composition of the present invention is a LPG selective catalyst particles comprising a medium pore size zeolite bound by a clay-phosphate-silica-alumina binder with lowered soluble phosphate content. The catalyst of the present invention exhibits improved selectivity towards high value components like propylene and gasoline and suppressing low value components like dry gas and bottoms. The preparation comprises washing an FCC catalyst additive comprising a zeolite and phosphate with demineralised water for 30 min to 2 h to remove water soluble phosphate before drying and calcining, and subsequent ion exchange with a bivalent metal ion selected from IUPAC groups 2 and 11, filtering, drying and calcining.
Abstract:
In a process for producing methyl-substituted biphenyl compounds, a feed comprising at least one aromatic hydrocarbon selected from the group consisting of toluene, xylene and mixtures thereof is contacted with hydrogen in the presence of a hydroalkylation catalyst under conditions effective to produce a hydroalkylation reaction product comprising (methylcyclohexyl)toluenes and/or (dimethylcyclohexyl)xylenes together with dialkylated C 21 + compounds. At least part of the dialkylated C 21 + compounds is then removed from the hydroalkylation reaction product to produce a dehydrogenation feed; and at least part of the dehydrogenation feed is dehydrogenated in the presence of a dehydrogenation catalyst under conditions effective to produce a dehydrogenation reaction product comprising a mixture of methyl-substituted biphenyl compounds.
Abstract:
The invention concerns a catalyst comprising at least one zeolite having an MTW structure, a matrix, at least one metal from group VIII of the periodic table, said catalyst having a mesoporous volume increased by at least 10% relative to the initial mesoporous volume of same, generally between 0.55 and 0.75 m L/g, after a treatment with water vapour at a partial pressure of between 0.01 and 0.07 MPa and at a temperature of between 300 and 400° C, for at least 0.5 hour. The invention concerns the method for preparing said catalyst and an isomerisation method implementing said catalyst.
Abstract:
A process is described for improving the quality as a fuel of hydrotreated hydrocarbon blends by reaction with hydrogen in the presence of a bifunctional catalytic system comprising one or more metals selected from Pt, Pd, Ir, Ru, Rh and Re, and a silico-aluminate of an acidic nature, se- lected from a micro-mesoporous silico-alumina and a zeolite belonging to the MTW family. The process of the invention produces an increase in the cetane index and a decrease in the density and T95.
Abstract:
A method for converting an alcohol to a hydrocarbon, the method comprising contacting said alcohol with a metal-loaded zeolite catalyst at a temperature of at least 100° C. and up to 550° C., wherein said alcohol can be produced by a fermentation process, said metal is a positively-charged metal ion, and said metal-loaded zeolite catalyst is catalytically active for converting said alcohol to said hydrocarbon.