摘要:
Disclosed is a method for regenerating and maintaining the activity of an ionic liquid catalyst, which comprises supplying hydrogen halide or halogenated hydrocarbon to the acidic ionic liquid catalyst or alkylation materials during alkylation reaction, wherein said ionic liquid catalyst is used to catalyze alkylation of C4 alkene and alkane. Disclosed is also a method for producing alkylate by alkylation reaction, which comprises supplying hydrogen halide or halogenated hydrocarbon to the acidic ionic liquid catalyst or reaction materials during said alkylation reaction. The method can prolong the service life of the acidic ionic liquid catalyst, does not influence the quality of the alkylate, and has simple operation. The processed amount of materials may be 1000 times more than the used amount of the ionic liquid.
摘要:
A method for reducing halide concentration in a hydrocarbon product made by a hydrocarbon conversion process using an ionic liquid catalyst comprising a halogen-containing an acidic ionic liquid comprising: (i) separating at least a portion of the hydrocarbon product from the ionic liquid catalyst used in the hydrocarbon conversion process from the hydrocarbon product; (ii) contacting at least a portion of the separated hydrocarbon product with an ionic liquid catalyst having the same formula as the ionic liquid catalyst used in the hydrocarbon conversion process; (iii) separating at least a portion of the hydrocarbon product from the ionic liquid catalyst of step (ii); and (iv) recovering at least a portion of the separated hydrocarbon product of step (iii) having a halide concentration less than the halide concentration of the hydrocarbon product of step (i) is disclosed.
摘要:
A method for reducing halide concentration in a hydrocarbon product having an organic halide content from 50 to 4000 ppm which is made by a hydrocarbon conversion process using an ionic liquid catalyst comprising a halogen-containing acidic ionic liquid comprising contacting at least a portion of the hydrocarbon product with at least one molecular sieve having pore size from 4 to 16 Angstrom under organic halide absorption conditions to reduce the halogen concentration in the hydrocarbon product to less than 40 ppm is disclosed.
摘要:
Provided is a process for producing low volatility, high quality gasoline blending components from a number of isoparaffin feed streams, olefin feed streams, and ionic liquid catalyst streams. The process entails providing an iso paraffin feed stream comprising iso paraffins, an olefin feed stream comprising olefins, and a catalyst stream comprising ionic liquid catalyst, and subsequently splitting at least the reactive olefin feed stream for feeding into the reaction zone at different locations.
摘要:
Process for upgrading a paraffinic feedstcok comprising contacting feedstock and olefin at a paraffin to olefin ratio greater than 5 v/v with a solid acid catalyst wherein the process is carried out under hydrogenating conditions preferably as part of cyclic process for catalytically upgrading a paraffinic feedstock and upgrading the activity of deactivated catalyst. Process is especially suited for alkylation of a paraffinic feedstock by the condensation of paraffins with olefins.
摘要:
A process for alkylating an isoparaffin containing up to 20 carbon atoms with an olefin containing from 2 to 12 carbon atoms comprises contacting the isoparaffin and olefin with a catalyst comprising a large pore zeolite and a Lewis acid at a temperature of -40°C to 500°C and a pressure up to 5000 psig (35000 kPa), wherein the molar ratio of the isoparaffin to the olefin is from 1:1 to 50:1 and the contacting takes place in the presence of water.
摘要:
L'invention concerne un procédé d'alkylation dans lequel on traite une charge comprenant au moins une isoparaffine et au moins une oléfine contenant de 2 à 6 atomes de carbone par molécule, en présence d'un catalyseur solide d'alkylation ; ledit procédé comprenant :
a) l'introduction et la mise en contact avec le catalyseur présent dans une zone réactionnelle R des composés suivants :
(i) ladite charge, de préférence introduite au moins à l'entrée de la zone R, (ii) l'effluent liquide décrit en b), introduit au moins à l'entrée de la zone R, de préférence totalement introduits à l'entrée de la zone R et, (iii) l'effluent liquide décrit en d), de préférence introduit au moins à l'entrée de la zone R,
b) le recyclage d'une partie de l'effluent liquide sortant de la zone réactionnelle R vers l'entrée de ladite zone R, c) l'introduction d'une autre partie de l'effluent liquide sortant de la zone réactionnelle R dans une zone de séparation isobutane/normal-butane/alkylat S, d) le recyclage de la majeure partie de l'effluent liquide riche en isobutane de la zone S en zone réactionnelle R, e) l'obtention d'un alkylat à titre de produit, soutiré de la partie inférieure dans la zone S, et, f) l'obtention de normal-butane à titre de purge de la zone S,
le procédé étant caractérisé par l'emploi d'un catalyseur spécifique notamment comprenant de l'acide sulfurique imprégné sur un support poreux.
摘要:
A process for alkylating an isoparaffin containing up to 20 carbon atoms with an olefin containing from 2 to 12 carbon atoms comprises contacting the isoparaffin and olefin with a catalyst comprising a non-zeolitic solid inorganic oxide and a Lewis acid at a temperature of -40°C to 500°C and a pressure up to 35000 kPa (5000 psig), wherein the molar ratio of the isoparaffin to the olefin is from 1:1 to 50:1 and the contacting takes place in the presence of water.