摘要:
A continuous alkylation process for the production of high octane gasoline comprising contacting a mixture of an isoparaffin and an olefin with a catalyst complex comprising BF3:H.sub.3 PO.sub.4 in a continuous hydrocarbon downflow reactor.
摘要翻译:包括用于生产高辛烷值汽油的连续烷基化方法,包括使异链烷烃和烯烃的混合物与包含BF 3 :H 3 PO 4的催化剂络合物在连续的烃下流反应器中接触。
摘要:
An isoparaffin-olefin alkylation process is disclosed which improves alkylate quality by segregating the olefin feed into intermediate feedstreams which are enriched in propene, 1-butene, and/or 2-butenes with respect to the olefin feed, and alkylating these intermediate feedstreams in separate reaction zones at reaction temperatures specific to the olefin feed to increase the ratio of trimethylpentanes to dimethylhexanes in the resulting alkylate product.
摘要:
The present invention provides a method for separating conjunct polymers and sulfolane from a mixture containing conjunct polymers, sulfolane, and hydrofluoric acid comprising the sequential steps of:(a) separating hydrofluoric acid from said mixture to provide an intermediate stream containing less than about 30 percent hydrofluoric acid by weight;(b) gravitationally separating said intermediate stream into a sulfolane-enriched stream and a conjunct polymer-enriched stream;(c) contacting said sulfolane-enriched stream with a polar extraction solvent to provide an extract stream enriched in sulfolane and a raffinate stream enriched in conjunct polymers;(d) stripping the polar extraction solvent from said sulfolane-enriched extract stream; and(e) recovering sulfolane from said enriched stream of step (d).
摘要:
The present invention provides a method for separating conjunct polymers which are formed as byproducts of acid catalyzed isoparaffin-olefin alkylation and sulfolane from a mixture containing conjunct polymers, sulfolane, and hydrofluoric acid comprising the sequential steps of:(a) separating hydrofluoric acid from a mixture containing conjunct polymers, sulfolane, and hydrofluoric acid to provide a first intermediate stream containing less than about 30 percent hydrofluoric acid by weight;(b) mixing said intermediate stream with a nonpolar extraction solvent to provide a second intermediate stream; and(c) gravitationally separating said intermediate stream into a less dense extract stream enriched in conjunct polymers and a more dense liquid stream enriched in sulfolane.
摘要:
There is provided a process for ring opening of aromatics and cycloaliphatics, as well as isomerization of aliphatics. The feedstream to this process comprises hydrocarbons having 6 carbon atoms. The process involves the use of at least two reactors connected in series. The first reactor contains a zeolite catalyst and is operated under conditions which particularly promote ring opening. The catalyst in this first reactor may comprise zeolite Beta and platinum. A downstream reactor is operated under conditions to promote isomerization of aliphatics. The catalyst in the second reactor may comprise alumina, platinum and a chloride component.
摘要:
The invention provides an isoparaffin:olefin alkylation catalyst composition and a process employing the same, wherein the catalyst composition comprises from about 10 to about 90 percent of at least one acid selected from the group consisting of hydrofluoric acid and the halogen-substituted sulfonic acids, together with from about 10 to about 90 weight percent of an additive having the formula R--(NO.sub.2).sub.n, wherein R is an alkyl, aromatic, alkyl halide or halide-substituted aromatic group having from about 1 to about 30 carbon atoms.
摘要:
The present invention provides a process for alkylating an isoparaffin with an olefin comprising contacting an isoparaffin having from 4 to 8 carbon atoms with an olefin having from 2 to 12 carbon atoms in an alkylation reaction zone at temperature from about -20.degree. C. to about 150.degree. C. with an alkylation catalyst complex comprising a Lewis acid and an inorganic, porous crystalline phase material having, after calcination, a d-spacing greater than about 18 Angstrom Units and having a benzene adsorption capacity of greater than 15 grams benzene per 100 grams of said material at 50 torr and 25.degree. C., wherein the molar ratio of said isoparaffin to said olefin is from about 1 to about 250 to evolve a product stream containing C.sub.5 +alkylate. In a preferred embodiment, the alkylation catalyst complex comprises a Lewis acid and an inorganic, porous crystalline phase material having, after calcination, a hexagonal arrangement of uniformly-sized pores having diameters of at least about 13 Angstrom Units and exhibiting a hexagonal electron diffraction pattern that can be indexed with a d.sub.100 value greater than about 18 Angstrom Units.
摘要:
A low acidity Group VIII metal-containing zeolite MCM-22 catalyst, said zeolite exhibiting an Alpha value of not greater than about 150, is provided for conversion of aliphatic C.sub.2 to C.sub.12 hydrocarbon(s) to olefin(s) and/or aromatic(s).
摘要:
The invention provides an isoparaffin-olefin alkylation catalyst composition comprising from about 5 to about 95 weight percent hydrofluoric acid, from about 5 to about 95 weight percent of a solvent having a Donor Number of less than about 40 and from about 0.05 to about 10 weight percent water.An isoparaffin-olefin alkylation process employing the catalyst composition of the invention is also disclosed.
摘要:
The present invention relates to a novel alkylation catalyst complex and to alkylation processes employing such a catalyst complex. More specifically, the invention relates to a novel catalyst complex comprising a BF.sub.3 :H.sub.3 PO.sub.4 adduct, and at least one polar hydrocarbon formed in situ. The catalyst complex may optionally include water as well as an added solubilizing agent. The invention further includes a pretreatment method for enhancing the isoparaffin selectivity of a catalyst complex containing a BF.sub.3 :H.sub.3 PO.sub.4 adduct.
摘要翻译:本发明涉及一种新的烷基化催化剂络合物和使用这种催化剂络合物的烷基化方法。 更具体地说,本发明涉及包含BF 3 :H 3 PO 4加合物和至少一种在原位形成的极性烃的新型催化剂络合物。 催化剂络合物可以任选地包括水以及添加的增溶剂。 本发明还包括用于提高含有BF 3 :H 3 PO 4加合物的催化剂络合物的异构烷烃选择性的预处理方法。