摘要:
Processes are described for isomerizing one or more C 4 -C 24 alpha olefins to produce an isomerization mixture comprising one or more C 4 -C 24 internal olefins comprising contacting an olefinic feed comprising the one or more C 4 -C 24 alpha olefins with a catalyst under isomerization conditions, wherein the catalyst comprises a mesoporous material having a collidine uptake of greater than about 100 μmol/g. The resulting isomerization mixture typically exhibits a low pour point with maintained biodegradability properties as compared to the olefinic feed, and is particularly useful in drilling fluid and paper sizing compositions.
摘要:
The present invention relates to minimizing benzene, toluene, and an A9/A10 recycle loop in a zero benzene aromatics complex. More specifically, the present invention relates to a minimizing benzene, toluene, and an A9/A10 recycle loop in a zero benzene aromatics complex wherein the aromatic feed has a low methyl to phenyl ratio, and where the aromatic feed has a high methyl to phenyl ratio.
摘要:
Processes and reaction systems for low pressure oligomerization of olefins to produce distillate boiling range products using zeolite catalysts are provided herein.
摘要:
In a process for isoparaffin-olefin alkylation, a feed comprising at least one olefin and at least one isoparaffin is contacted under alkylation conditions in the presence of a solid acid catalyst comprising a crystalline microporous material of the MWW framework type to produce an alkylated product. The alkylated product comprises a C 8- fraction, which is useful as a gasoline blending stock, and a C 9+ fraction, which is separated from the alkylated product and at least partially recycled to the alkylation step.
摘要:
A process for the catalytic alkylation of an olefin with an isoparaffin comprises contacting an olefin-containing feed with an isoparaffin-containing feed under alkylation conditions in a reaction zone containing a fixed bed of a solid acid catalyst comprising a crystalline microporous material of the MWW framework type, wherein the reaction zone contains at least 100 kg of the catalyst and the catalyst has a cycle length of at least 150 days.
摘要:
A new crystalline aluminosilicate zeolite comprising a MTT framework has been synthesized that has been designated UZM-53. This zeolite is represented by the empirical formula: M + m R 1 Al 1-x E x Si y O z, where M represents sodium, potassium or a combination of sodium and potassium cations, R is the organic structure directing agent or agents derived from reactants R1 and R2 where R1 is diisopropanolamine and R2 is a chelating diamine, and E is an element selected from the group consisting of gallium, iron, boron and mixtures thereof. Catalysts made from UZM-53 have utility in various hydrocarbon conversion reactions such as oligomerization.
摘要:
This invention refers to a microporous crystalline material of zeolitic nature that has, in its calcined state and in the absence of defects in its crystalline matrix manifested by the presence of silanols, the empirical formula x (M1/nXO2): y YO2: g GeO2: (1-g) SiO2 in which M is selected between H+, at least one inorganic cation of charge +n, and a mixture of both, X is at least one chemical element of oxidation state +3, Y is at least one chemical element with oxidation state +4 different from Si, x takes a value between 0 and 0.2, both included, y takes a value between 0 and 0.1, both included, g takes a value between 0 and 0.5, both included that has been denoted ITQ-55, as well as a method for its preparation. This invention also relates to uses of the crystalline material of zeolitic nature for adsorption of fluid components, membrane separation of fluid components, storage of fluid components, and catalysis of various conversion reactions.
摘要:
Uses for a new crystalline molecular sieve designated SSZ-27 are disclosed. SSZ-27 is synthesized using a hexamethyl [4.3.3.0] propellane-8,11-diammonium cation as a structure directing agent.
摘要:
An oxygenate to olefins conversion reactor system comprising: a) a riser reactor having an inlet for feed, an inlet for catalyst and an outlet; b) a primary gas/solids separator having an inlet for the reactor effluent, an outlet for products, and an outlet for catalyst; c) a secondary gas/solids separator having an inlet for the products, an outlet for final products and an outlet for catalyst; d) a first conduit connecting the riser reactor outlet with the primary gas/solids separator inlet; and e) a second conduit connecting the primary gas/solids separator products outlet with the secondary gas/solids separator inlet wherein the second conduit has at least one injection point for injecting a cooling medium into the effluent.