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公开(公告)号：EP0715609B1
公开(公告)日：1999-09-08
申请号：EP94924474.3
申请日：1994-07-19
CPC分类号： C01B7/195 , C07C2/62 , C07C9/16 , C07C2527/1206 , C07D333/48 , Y02P20/584
摘要： An isoparaffin-olefin alkylation process comprising (a) alkylating an isoparaffin-olefin feed stream (10) in the presence of an alkylation acid catalyst (12) containing HF and sulfolane in a riser reactor (20) where acid soluble oligomers (ASO) are formed; (b) separating the alkylator effluent (22) in a gravitational separator (30) to obtain a less dense stream (38) containing the alkylate and unreacted isoparaffin, and a more dense stream (32) containing HF, sulfolane and ASO; (c) recycling most of the more dense stream to the riser reactor (20) as recycled acid catalyst (36) along with make-up HF catalyst (14); (d) stripping the rest (34) of the more dense stream in a catalyst stripper (50) with a stripping isoparaffin fluid (57) to obtain an overhead stream (56) which flows to the product fractionator (90); (e) gravitationally separating the stripper bottom stream (54) in a separator (70) to obtain a less dense phase (76) enriched in ASO, a more dense stream (77) enriched in sulfolane and a bottoms stream (78) containing solids; (f) fractionating streams (38) and (56) in a product fractionator (90) to obtain an overhead stream (92) enriched in isoparaffin and HF, which condenses in overhead cooler (94) and separates into a hydrocarbon phase and an acid phase in the overhead accumulator (120); (g) recycling part (123) of the hydrocarbon phase in overhead accumulator as a reflux to the fractionator (90) and the rest (125) as isoparaffin recycle to the riser reactor (20); (h) recycling the acid phase (124) in the overhead accumulator as a catalyst to the riser reactor (20); and (i) obtaining the alkylate product (56) and an n-butane by-product (98) from the fractionator (90).
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公开(公告)号：EP0715610B1
公开(公告)日：1999-10-20
申请号：EP94924543.5
申请日：1994-08-01
CPC分类号： C07C2/62 , C07C2527/1206
摘要： An isoparafin-olefin alkylation process comprising the sequential steps of (a) alkylating a mixed isoparaffin-olefin feed (10) in the presence of an alkylation catalyst (12) comprising HF and sulfolane in a riser reactor (20), whereby acid soluble oligomers (ASO) are formed; (b) gravitationally separating the effluent (22) in separator (30) into a less dense stream (38) containing the alkylate and unreacted isoparaffin and a more dense stream (32) containing sulfolane, ASO and HF, part (36) of which is recycled into the riser reactor (20) as the acid catalyst; (c) stripping HF from the rest (34) of the more dense stream (32) in a multi-step stipping column (50) with a stripping isoparaffin fluid (52) to obtain a stripped bottom stream (54) containing less than 30 % HF and an overhead stream (58) containing HF, isoparaffin, and a fraction of low-boiling ASO; (d) gravitationally separating the stripped bottom (54) in a separator (70) into a more dense sulfolane-enriched stream (78) and a less dense ASO-enriched stream (76); (e) charging the stripper overhead stream (56) into an alkylate fractionator (90) to obtain an overhead stream (92) containing isoparaffin and HF; (f) condensing the overhead stream (92) in overhead accumulator (100), a part (103) of which is recycled as reflux to the fractionator (90) and the rest (105) is recycled as isoparaffin stream to the riser reactor (20); (g) recycling the acid phase (104) condensate in overhead accumulator (100) back to the riser reactor (20) as catalyst; (h) and recovering an alkylate product (96) and an n-butane product (98).
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3.发明授权AN ISOPARAFFIN-OLEFIN ALKYLATION CATALYST COMPRISING HF, SULFONE AND WATER 失效烷基化有催化剂的异构烷烃与烯烃WHICH HF，砜水中含有
公开(公告)号：EP0632795B1
公开(公告)日：1998-01-07
申请号：EP93906203.0
申请日：1993-02-23
IPC分类号： C07C2/62
CPC分类号： C07C2/62 , C07C2527/1206
摘要： The present invention provides a process for alkylation of an isoparaffin with an olefin in the presence of acid catalyst composition comprising from 50 to 80 weight percent hydrofluoric acid, from 20 to 50 weight percent sulfolane, and from 0.5 to 10 weight percent water. The addition of the water decreases the corrosivity of the mixture of hydrofluoric acid and sulfolane.
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