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    • 1. 发明公开
    • ISOPARAFFIN-OLEFIN ALKYLATION
    • 异链烷烃,烯烃烷基化
    • EP0715609A1
    • 1996-06-12
    • EP94924474.0
    • 1994-07-19
    • MOBIL OIL CORPORATION
    • CHILD, Jonathan, EdwardMELLI, Tomas, Rodolfo
    • C01B7C07B61C07C2C07C7C07C9C07D333C10G35C10L1
    • C01B7/195C07C2/62C07C9/16C07C2527/1206C07D333/48Y02P20/584
    • 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).
    • 4. 发明公开
    • ISOPARAFFIN-OLEFIN ALKYLATION
    • 异链烷烃 - 烯烃烷基化
    • EP0715610A1
    • 1996-06-12
    • EP94924543.0
    • 1994-08-01
    • MOBIL OIL CORPORATION
    • CHILD, Jonathan, EdwardMELLI, Tomas, RodolfoYURCHAK, Sergei
    • B01J31C07B61C07C2C07C7C07C9C10G35C10L1
    • C07C2/62C07C2527/1206
    • 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).
    • (a)在包含HF和环丁砜的烷基化催化剂(12)存在下,在提升管反应器(20)中将混合的异链烷烃 - 烯烃原料(10)烷基化,由此得到酸可溶低聚物 (ASO); (b)将分离器(30)中的流出物(22)重力分离成含有烷基化物和未反应的异链烷烃的低密度流(38)和含有环丁砜,ASO和HF的更密集流(32),其中部分(36) 作为酸催化剂再循环到提升管反应器(20)中; (c)用汽提异链烷烃流体(52)在多步骤提升塔(50)中从更密集流(32)的剩余物(34)中汽提HF以获得含有少于30 %的HF和含有HF,异链烷烃和一部分低沸点ASO的顶部料流(58) (d)将分离器(70)中的汽提底部(54)重力分离成更稠密的富含环丁砜的物流(78)和不太致密的富含ASO的物流(76); (e)将汽提塔顶部物流(56)装入烷基化分馏塔(90)以获得含有异链烷烃和HF的顶部物流(92); (f)将塔顶馏出物流(92)冷凝在顶部储存器(100)中,塔顶馏出物(103)的一部分(103)作为回流物循环至分馏塔(90),剩余物(105)作为异链烷烃物流循环至提升管反应器 20); (g)将在塔顶收集器(100)中的酸相(104)冷凝物作为催化剂再循环回提升管反应器(20); (h)并回收烷基化产物(96)和正丁烷产物(98)。