Abstract: An isomerization process for lowering the normal paraffin content of a hydrocarbon oil feedstock by contacting the feedstock with a catalyst comprising an intermediate pore size silicoaluminophosphate molecular sieve and at least one Group VIII metal wherein the metal is occluded in the molecular sieve is described. The n-paraffins in the feedstock become isomerized to isoparaffins to form liquid range materials which contribute to a low viscosity, low pour point product in the case of middle distillate and lube oils and high octane in the case of gasoline.
Abstract: The viscosity index of synthetic lubricant stocks such as those produced by olefin oligomerization is increased by contacting such stocks with a solid acidic isomerization catalyst such as boron trifluoride at elevated temperatures, say above about 200.degree. C. The high viscosity index fractions of the resulting product may be sorbed by a shape-selective zeolite such as ZSM-5 and recovered to produce a high VI lubricant.
Abstract: Titanium-containing molecular sieves are disclosed having use as molecular sieves and as catalyst compositions in hydrocarbon conversion and other processes. The instant invention employs novel titanium-containing molecular sieves comprising titanium, aluminum, phosphorus and oxygen and are generally employable in hydrocarbon conversion processes, including cracking, hydrocracking and hydrotreating.
Type:
Grant
Filed:
July 3, 1984
Date of Patent:
November 5, 1985
Assignee:
Union Carbide Corporation
Inventors:
Brent M. T. Lok, Bonita K. Marcus, Edith M. Flanigen
Abstract: Natural gasoline of low octane value derived from natural gas is upgraded to higher octane value by means of a liquid ternary catalyst comprising trifluoromethanesulfonic acid and hydrogen fluoride in conjunction with a Lewis acid of the formula MX.sub.n wherein M is selected from Group III-A, IV-B or V elements of the Periodic Table, x is a halogen and n is a number varying from 3 to 6. Effective upgrading is achieved when the Lewis acid:HF mole ratio of the catalyst ranges from 1:2 to 2:1 at temperatures less than about 120.degree. C. under liquid phase conditions.
Abstract: A process is described for paraffin isomerization under strong acid conditions in which an adamantyl carboxylic acid or sulfonic acid is used to substantially increase the reaction rate of the isomerization.
Abstract: A process is described for non-cyclic paraffin isomerization under strong acid conditions in which an adamantane hydrocarbon is used to substantially increase the reaction rate of the isomerization.
Abstract: A process is described for paraffin isomerization under strong acid conditions in which in aminoalkyladamantane is used to substantially increase the reaction rate of the isomerization.
Abstract: Unbranched or less branched paraffins having 6 carbon atoms as essential components are isomerized without side reaction in high yield in the presence of hydrogen fluoride and boron trifluoride as a catalyst while keeping percent isomerization of paraffins having 6 carbon atoms lower than the equilibrium percent isomerization of the paraffins having 6 carbon atoms at a given reaction temperature, or by conducting isomerization at a plurality of stages while keeping a reaction temperature at a given stage lower than that at the preceding stage and keeping percent isomerization of paraffins having 6 carbon atoms at a given stage lower than the equilibrium percent isomerization thereof at the reaction temperature at the stage.
Abstract: Hydrocarbon conversion processes wherein hydrocarbon feedstreams are contacted with heteronuclear noble metal catalysts are improved by the use of supported heteronuclear noble metal cluster catalysts prepared from novel supported heteronuclear noble metal cluster complexes. The heteronuclear noble metal cluster complexes used as catalyst precursors are selected from the group consisting of(pyridine).sub.2 Pt[Ir.sub.6 (CO).sub.15 ],(pyridine).sub.2 Pt[Ir.sub.2 (CO).sub.7 ],((C.sub.6 H.sub.5).sub.3 P).sub.2 Pt[IR(CO).sub.3 P(C.sub.6 H.sub.5).sub.3 ].sub.2,(pyridine).sub.2 Pt[Ru.sub.3 (CO).sub.12 ]((C.sub.6 H.sub.5).sub.3 P).sub.2 Rh(CO)[Ir(CO).sub.4 ],(pyridine).sub.2 Pt[Rh(CO).sub.2 (P(C.sub.6 H.sub.5).sub.3).sub.2 ].sub.2.