公开(公告)号：US06924406B2

公开(公告)日：2005-08-02

申请号：US09886994

申请日：2001-06-25

申请人： Gianluca Girardi ,  Gianni Pandolfi ,  Renzo Bignazzi ,  Renato Paludetto

发明人： Gianluca Girardi ,  Gianni Pandolfi ,  Renzo Bignazzi ,  Renato Paludetto

IPC分类号： C07C7/13 ,  C07C9/14 ,  C07C15/04 ,  C07C15/06 ,  C07C15/073 ,  C07C15/08 ,  C10G25/03 ,  C10G53/08 ,  C07C7/12

CPC分类号： C07C7/13

摘要： A process for separating mixtures of hydrocarbon isomers on molecular sieves, including providing columns which include molecular sieves and function alternatively as secondary adsorption, primary adsorption, and desorption devices, feeding the mixtures of hydrocarbon isomers to a column functioning as the primary adsorption device for adsorbing isomers with greater selectivity towards the molecular sieves, feeding effluent of the mixtures from the column functioning as the primary adsorption device to a column functioning as the secondary adsorption device for adsorbing remaining isomers with greater selectivity, discharging isomers with a lower selectivity from the column functioning as the secondary adsorption device and a desorbing agent therein, feeding a desorbing agent to the column functioning as the desorption device, discharging isomers with a greater selectivity towards the molecular sieves and the desorbing agent in the column functioning as the desorption device.

摘要翻译： 分子筛上分离烃异构体的混合物的方法，包括提供包括分子筛的色谱柱，或者作为二次吸附，主要吸附和解吸装置的功能，将烃异构体的混合物供给到用作吸附的主要吸附装置的塔 对分子筛具有更高选择性的异构体，将来自作为主要吸附装置的塔的混合物的流出物供给到用作用于以更高选择性吸附剩余的异构体的第二吸附装置的塔，从柱的功能以较低的选择性排出异构体 作为第二吸附装置和解吸剂，将脱附剂供给到用作解吸装置的塔中，以用作解吸装置的塔中的分子筛和解吸剂以更大的选择性排出异构体。

公开(公告)号：US06737558B2

公开(公告)日：2004-05-18

申请号：US09851131

申请日：2001-05-09

申请人： Renzo Bignazzi ,  Gianni Pandolfi

发明人： Renzo Bignazzi ,  Gianni Pandolfi

IPC分类号： C07C714

CPC分类号： C07C7/14 ,  C07C15/24

摘要： Process for the separation of 2,6-dimethylnaphthalene from mixtures containing it, comprising the following operations: crystallization by the addition of a solvent and cooling of the mixture to a temperature higher than the formation value of the first eutectic; removal of the mother liquor by repeated washings; dissolution of the solid obtained; crystallization by cooling; filtration.

摘要翻译： 用于从含有它的混合物的混合物中分离2,6-二甲基萘的方法，包括以下操作：通过加入溶剂进行结晶并将混合物冷却至比第一共晶体的形成值高的温度;除去母液 通过反复洗涤;溶解所得固体;通过冷却结晶;过滤。

公开(公告)号：US5563299A

公开(公告)日：1996-10-08

申请号：US383317

申请日：1995-02-03

申请人： Renato Paludetto ,  Gianni Donati ,  Alfredo Orsi ,  Gianni Pandolfi ,  Roberto Trotta ,  Maura Brianti

发明人： Renato Paludetto ,  Gianni Donati ,  Alfredo Orsi ,  Gianni Pandolfi ,  Roberto Trotta ,  Maura Brianti

IPC分类号： C07C43/04 ,  C07C11/08 ,  C07C41/06 ,  C07C41/34

CPC分类号： C07C41/06 ,  C07C41/36 ,  Y02P20/125

摘要： An integrated process for the simultaneous production of alkyl tert-butyl ethers and 1-butene, comprising feeding a C.sub.4 hydrocarbon stream to an etherification unit and recycling the remaining stream to the same unit after possible separation of the 1-butene and treatment in an isomerization section to convert the remaining butenes into isobutene, a molecular sieve separation unit operating with the hydrocarbons in the vapour phase being incorporated into the cycle.

摘要翻译： 一种用于同时生产烷基叔丁基醚和1-丁烯的综合方法，包括将C4烃流进料到醚化装置，并将剩余物流再循环至相同的单元，之后可能分离出1-丁烯并进行异构化处理 将剩余的丁烯转化成异丁烯，将与气相中的烃一起操作的分子筛分离装置并入循环中。

公开(公告)号：US08535487B2

公开(公告)日：2013-09-17

申请号：US12664747

申请日：2008-05-30

申请人： Lino Carnelli ,  Carla Lazzari ,  Gianni Pandolfi

发明人： Lino Carnelli ,  Carla Lazzari ,  Gianni Pandolfi

IPC分类号： B01D3/00 ,  C02F1/04 ,  C02F9/02

CPC分类号： C02F1/04 ,  C02F1/16 ,  C02F9/00 ,  C02F2101/32 ,  C02F2103/365

摘要： A process for purifying an aqueous stream from a Fischer-Tropsch reaction that includes feeding the aqueous stream to a system that includes a distillation column equipped with a partial condenser and a total condenser, at least partially condensing the vaporized stream leaving the head of the distillation column and collecting a first distillate in which in heavier by-products, totally condensing the remaining portion of the vaporized stream leaving the partial condenser and collecting a liquid stream which is returned to the distillation column as a reflux and removing a purified aqueous stream from the bottom of the distillation column.

摘要翻译： 一种用于从费 - 托反应中纯化含水物流的方法，包括将含水物流送入系统，所述系统包括装备有部分冷凝器和总冷凝器的蒸馏塔，至少部分冷凝离开蒸馏头的汽化物流 并收集第一馏出物，其中在较重的副产物中，将离开部分冷凝器的蒸发物流的剩余部分完全冷凝并收集液流，其作为回流返回到蒸馏塔，并将纯化的水流从 蒸馏塔底部。

公开(公告)号：US20100193346A1

公开(公告)日：2010-08-05

申请号：US12664747

申请日：2008-05-30

申请人： Lino Carnelli ,  Carla Lazzari ,  Gianni Pandolfi

发明人： Lino Carnelli ,  Carla Lazzari ,  Gianni Pandolfi

IPC分类号： B01D3/14

CPC分类号： C02F1/04 ,  C02F1/16 ,  C02F9/00 ,  C02F2101/32 ,  C02F2103/365

摘要： The present invention relates to a process for the purification of an aqueous stream coming from the Fischer-Tropsch reaction which comprises:—feeding of the aqueous stream containing the organic by-products of the reaction to a system consisting of a distillation column equipped with a partial condenser and a total condenser;—partial condensation of the vaporized stream leaving the head of the column and collection of a first distillate enriched in the heavier by-products;—total condensation of the vaporized stream leaving the partial condenser and collection of a liquid stream which is partly sent back to the distillation column as reflux whereas the remaining part is collected as distillate;—extraction of the purified aqueous stream from the bottom of the distillation column.

摘要翻译： 本发明涉及一种用于净化来自费 - 托反应的含水物流的方法，该方法包括：将含有反应的有机副产物的含水物流输送到由装备有 部分冷凝器和总冷凝器;离开塔顶部的汽化物流的部分冷凝和收集富含较重副产物的第一馏出物; - 蒸发的物流的总冷凝，离开部分冷凝器并收集液体 其部分作为回流部分送回蒸馏塔，而剩余部分作为馏出物收集; - 从蒸馏塔的底部萃取纯化的含水物流。