Abstract:
processo e aparelho para converter olefinas em compostos maiores. o processo e aparelho convertem olefinas de ccf para compostos mais pesados. os compostos mais pesados são mais facilmente separados das parafinas não convertidas. os compostos mais pesados podem ser reciclados para uma unidade de ccf ou ser distribuídos para uma unidade de ccf separada. zonas de conversão apropriadas são zonas de oligomerização e alquilação aromática.
Abstract:
processo para a produção de olefinas, e, processo para a produção de propileno. processos para a conversão, sob condições e com um sistema de catalilsador eficaz para a metáfase de olefinas, de cargas de alimentação de hidrocarbonetos compreendendo uma olefina acíclica simétrica (por exemplo, buteno-2) são descritos. produtos olefínicos de números de carbono menores e maiores (por exempo, propileno e penteno) são formados na presença de um catalisador compreendendo um suporte sólido e um hidreto de tungstênio ligado a uma alumina presente no suporte. isto ocorre apesar do mecanismo de reação de metátese de olefina levar a um resultado degenerativo, sem qualquer produção esperada de produtos de números de carbono diferentes a partir de olefinas acíclicas simétricas.
Abstract:
A new family of aluminosilicate zeolites designated UZM-44 has been synthesized. These zeolites are represented by the empirical formula. NanMmk+TtAl1-xExSiyOz where M represents a metal or metals from zine, Group 1, Group 2, Group 3 and or the lanthanide series of the periodic table, “m” is the mole ratio of M to (Al+E), T is the organic structure directing agent or agents, and E is a framework element such as gallium. UZM-44 may be used to catalyze a process for the transalkylation of a feedstream comprising one or more of C7, C9, C10 and C11+ aromatics to obtain a transalkylation product stream having an increased concentration of C8 aromatics relative to that of the feedstream.
Abstract:
La presente invención se refiere a la síntesis de una nueva familia de materiales compuestos coherentemente formados de zeotipos TUN y IMP. Estas zeolitas están representadas por la fórmula empírica NanMmk+TtAl1-xExSiyOz, donde "n" es la proporción molar de Na contra (A1 + E), M representa un metal o metales de entre zinc, del Grupo 1, del Grupo 2, del Grupo 3 y/o la serie de lantánidos de la tabla periódica, "m" es la proporción molar de M contra (A1 + E), "k" es la carga media del metal o metales M, T es el agente o agentes directores de estructura orgánicos, y E es un elemento de estructura como galio. Estas zeolitas son similares a TNU-9 e IM-5, pero se caracterizan por composiciones y procedimientos de síntesis únicos en su tipo, y poseen propiedades catalíticas para realizar diversos procesos de conversión de hidrocarburos, y propiedades de separación para realizar diversas separaciones.
Abstract:
A process and catalyst for the metathesis of olefins in general and specifically for the production of propylene from ethylene and butylene has been developed. The catalyst comprises a tungsten metal compound, which contains at least one tungsten-fluoro bond, dispersed or grafted onto a support. A specific example of the catalyst is the compound WOF(CH2CMe3)3 grafted onto a silica support.
Abstract:
A new family of coherently grown composites of TUN and IMF zeotypes has been synthesized and shown to be effective catalysts for aromatic transformation reactions. These zeolites are represented by the empirical formula. NanMm k+TtA11-xExSiyOz where "n" is the mole ratio of Na to (Al + E), M represents at least one metal, "m" is the mole ratio of M to (Al + E), "k" is the average charge of the metal or metals M, T is the organic structure directing agent or agents, "t" is the mole ratio of N from the organic structure directing agent or agents to (Al + E), and E is a framework element such as gallium. The process involves contacting at least a first aromatic with the coherently grown composites of TUN and IMF zeotypes to produce at least a second aromatic.
Abstract:
Novel 1-oxa-4-azonium cyclohexane salts are described. These compounds can be used as structure directing agents, and they overcome many of the typical problems associated with OSDA synthesis and subsequent zeolite synthesis. Methods for synthesis of the 1-oxa-4-azonium cyclohexane salts from a variety of starting materials are also described. A substituted hydrocarbon is added to water to form a mixture, and a 1-oxa-4-azacyclohexane derivative is then added. The reaction mixture stirred until a solution containing the 1-oxa-4-azonium cyclohexane salt is obtained.
Abstract:
A process and catalyst for the metathesis of olefins in general and specifically for the production of propylene from ethylene and butylene has been developed. The catalyst comprises a tungsten metal compound, which contains at least one tungsten-fluoro bond, dispersed or grafted onto a support. A specific example of the catalyst is the compound WOF(CH2CMe3)3 grafted onto a silica support.
Abstract:
A process for removing a metal from a vacuum gas oil feed includes contacting the vacuum gas oil feed comprising the metal with a VGO-immiscible ionic liquid to produce a vacuum gas oil and VGO-immiscible ionic liquid mixture, and separating the mixture to produce a vacuum gas oil effluent having a reduced metal content relative to the vacuum gas oil feed.
Abstract:
A process for removing a metal from a crude oil includes contacting the crude oil containing the metal with a crude-immiscible ionic liquid to produce a crude oil and crude-immiscible ionic liquid mixture, and separating the mixture to produce a crude oil effluent having a reduced metal content relative to the crude oil feed. Optionally, a de-emulsifier is added to at least one of the contacting and separating steps.