摘要:
C.sub.4 -C.sub.15 alkanes (preferably C.sub.4 -C.sub.8 alkanes) are disproportionated in the presence of at least one alkylaluminum chloride (preferably isobutylaluminum dichloride), at least one chloroalkane (preferably carbon tetrachloride), and at least one solid material (selected from a group comprising alumina, silica, aluminosilicates, various other aluminum compounds, various boron compounds, and sulfonated styrene polymers).
摘要:
An alkane/fluoroalkane feed is treated with an acidic alumina to reduce the amount of fluoroalkane(s) in the feed. In a particularly preferred embodiment, the feed is treated with a sulfur-containing alumina so as to convert a major portion of fluoroalkane(s) to higher alkane(s).
摘要:
A composition of matter, which is an effective alkylation catalyst composition, is prepared by a method comprising heating, at a temperature of about 40.degree.-90.degree. C., (a) aluminum chloride, (b) boron phosphate, (c) alumina and/or silica, and (d) at least one chlorinated hydrocarbon (preferably CCl.sub.4), and subsequently separating the formed solid from the chlorinated hydrocarbon. The thus-prepared catalyst composition is employed in the alkylation of C.sub.2 -C.sub.7 alkane(s) with C.sub.2 -C.sub.7 alkene(s).
摘要:
C.sub.5 -C.sub.10 cycloalkanes (preferably methylcyclopentane) are isomerized in the presence of a catalyst comprising aluminum chloride and at least one of the following materials: boron phosphate on silica, boron phosphate on activated carbon, boron sulfate on silica.
摘要:
A hydrocarbon conversion process comprising contacting a hydrocarbon stream such as, for example, gasoline, with a catalyst composition to effect the conversion of the hydrocarbon to olefins and C6 to C8 aromatic hydrocarbons such as toluene and xylenes. The catalyst composition comprises a zeolite, a promoter and optionally a binder.
摘要:
A catalyst composition and a process for converting a hydrocarbon stream such as, for example, gasoline to C6 to C8 aromatic hydrocarbons such as toluene and xylenes are disclosed. The catalyst composition includes an alumina, a silica, and a metal wherein the weight ratio of aluminum to silicon is in the range of from about 0.002:1 to about 0.6:1. The process includes contacting a hydrocarbon stream with the catalyst composition under a condition sufficient to effect the conversion of a hydrocarbon to a C6 to C8 aromatic hydrocarbon. Also disclosed is a process for producing the catalyst composition which includes: (1) contacting a zeolite with an effective amount of an acid under a condition sufficient to effect a reduction in aluminum content of the zeolite to produce an acid-leached zeolite; and (2) impregnating the acid-leached zeolite with an effective amount of a metal compound under a condition sufficient to effect the production of a metal-promoted zeolite.
摘要:
A catalyst composition, a process for producing the catalyst composition, and a hydroconversion process for converting a fluid stream comprising at least one saturated hydrocarbon to C6 to C8 aromatic hydrocarbons such as benzene, toluene, and xylenes are disclosed. The catalyst composition comprises a zeolite and a promoter. The process for producing the composition comprises the steps of: (1) combining a zeolite with a complexing ligand and a promoter compound under a condition sufficient to produce a modified zeolite; and (2) heating the modified zeolite to produce a promoted zeolite. The hydroconversion process comprises contacting a fluid stream with the catalyst composition under a condition sufficient to effect the conversion of a saturated hydrocarbon to a C6 to C8 aromatic hydrocarbon.
摘要:
A catalyst composition and process for preparing such catalyst composition which can be useful in contacting a hydrocarbon-containing fluid which contains a highly unsaturated hydrocarbon such as 1,3-butadiene, in the presence of hydrogen, with such catalyst composition in a hydrogenation zone under a hydrogenation condition effective to hydrogenate such highly unsaturated hydrocarbon to a less unsaturated hydrocarbon such as n-butene is disclosed. Such process for preparing a catalyst composition includes (1) combining a zeolite, a Group VIB metal, and an inorganic support to form a modified zeolite; (2) calcining such modified zeolite under a calcining condition to produce a calcined, modified zeolite; and (3) contacting such calcined, modified zeolite with a carburizing agent under a carburizing condition to provide such catalyst composition.
摘要:
A catalyst composition, a process for producing the catalyst composition, and a hydroconversion process for converting a fluid stream comprising at least one saturated hydrocarbon to C.sub.6 to C.sub.8 aromatic hydrocarbons such as benzene, toluene, and xylenes are disclosed. The catalyst composition comprises a zeolite and a promoter. The process for producing the composition comprises the steps of: (1) combining a zeolite with a complexing ligand and a promoter compound under a condition sufficient to produce a modified zeolite; and (2) heating the modified zeolite to produce a promoted zeolite. The hydroconversion process comprises contacting a fluid stream with the catalyst composition under a condition sufficient to effect the conversion of a saturated hydrocarbon to a C.sub.6 to C.sub.8 aromatic hydrocarbon.
摘要:
A process to produce a composition is provided. Said process comprises: contacting a zeolite component, a silicon component, a Group 14 metal component, and a phosphorus component together to form a first mixture; treating said first mixture to form a second mixture; contacting said second mixture with a binder component to form a third mixture; agglomerating said third mixture to form a fourth mixture; and treating said fourth mixture to form said composition.