摘要:
The invention is a solid catalyst having acid strength H.sub.o less than -18. Such catalysts are characterized by the ability to react with very weak bases, such as butane, at relatively low temperatures, for example temperatures in the range from 20.degree. to 200.degree. C. The catalysts have exceptionally high activity for various hydrocarbon conversion processes, for example, because of their exceptionally high acid strength.
摘要:
New catalyst compositions comprise sulfated and calcined mixtures of (1) a support comprising an oxide or hydroxide of a Group IV-A element, (2) an oxide or hydroxide of a Group VI, VII or VIII metal, (3) an oxide or hydroxide of a Group I-B, II-B, III-A, III-B, IV-B, V-A or VI-A metal and (4) a metal of the Lanthanide Series of the Periodic Table. A process for alkylation of acyclic saturated compounds with acyclic unsaturated compounds utilizing such catalyst compositions.
摘要:
Isoparaffins and olefins are alkylated by contact with a solid superacid such as sulfated zirconia optionally containing added metals, and containing added heteropolyacids (HPA's) or polyoxoanions (POA's). The presence of HPA's or POA's in the solid superacid catalyst results in higher yields of desired high-octane components in the product mixture than are obtained in the absence of HPA's or POA's.
摘要:
New catalyst compositions comprise sulfated and calcined mixtures of (1) a support comprising an oxide or hydroxide of a Group IV-A element, (2) an oxide or hydroxide of molybdenum, and (3) an oxide or hydroxide of a Group I-B, II-B, III-A, III-B, IV-B, V-A or VI-A metal other than molybdenum or a metal of the Lanthanide Series of the Periodic Table. A process for alkylation of acyclic saturated compounds with acyclic unsaturated compounds utilizing such catalyst compositions.
摘要:
New catalyst compositions comprise sulfated and calcined mixtures of (1) a support comprising an oxide or hydroxide of a Group IV-A element, (2) an oxide or hydroxide of molybdenum, and (3) an oxide or hydroxide of a Group I-B, II-B, III-A, III-B, IV-B, V-A or VI-A metal other than molybdenum or a metal of the Lanthanide Series of the Periodic Table. A process for alkylation of acyclic saturated compounds with acyclic unsaturated compounds utilizing such catalyst compositions.
摘要:
Isoparaffins and olefins are alkylated in the liquid phase by contact with a solid superacid such as sulfated zirconia containing heteropolyacids or polyoxoanions. High octane number blending components for motor fuel and other valuable products are obtained, with important advantages over processes using liquid acid catalysts, and over vapor phase alkylation with solid superacid catalysts.
摘要:
A process for regeneration of spent sulfated and calcined solid superacid catalyst is disclosed. Said process comprises heating said catalyst to a temperature of approximately 450.degree. C. and contacting said catalyst with a gas stream comprising oxygen or air and sulfur dioxide. This regeneration process can be performed in situ.
摘要:
New catalyst compositions comprise sulfated and calcined mixtures of (1) a support comprising an oxide or hydroxide of a Group IV-A element, (2) an oxide or hydroxide of a Group VI, VII or VIII metal, (3) an oxide or hydroxide of a Group I-B, II-B, III-A, III-B, IV-B, V-A or VI-A metal and (4) a metal of the Lanthanide Series of the Periodic Table. A process for alkylation of acyclic saturated compounds with acyclic unsaturated compounds utilizing such catalyst compositions.
摘要:
A sulfated calcined solid catalyst is provided which comprises (1) oxide or hydroxide of Group III or Group IV, e.g. zirconium, metal, (2) oxide or hydroxide of Group V, Group VI or Group VII, e.g. manganese, metal and (3) oxide or hydroxide of Group VIII, e.g. iron, metal. In one embodiment of the invention, the catalyst is used to isomerize normal alkanes having 4 to 7 carbon atoms per molecule, to obtain high octane number blending components for motor fuel and/or valuable chemical intermediates.
摘要:
A sulfated calcined solid catalyst is provided which comprises (1) oxide or hydroxide or Group III or Group IV, e.g. zirconium, metal, (2) oxide or hydroxide or Group V, Group VI or Group VII, e.g. manganese, metal and (3) oxide or hydroxide or Group VIII, e.g. iron, metal. In one embodiment of the invention, the catalyst is used to isomerize normal alkanes having 4 to 7 carbon atoms per molecule, to obtain high octane number blending components for motor fuel and/or valuable chemical intermediates.