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1. 发明授权

US08293201B2 Method for the recovery of ammonia from a gaseous stream in a synthesis process of urea 有权
标题翻译：在尿素合成过程中从气流中回收氨的方法
公开(公告)号：US08293201B2
公开(公告)日：2012-10-23
申请号：US12743717
申请日：2008-11-14
申请人： Paolo Casara , Alessandro Gianazza , Ivano Miracca , Giuseppe Merelli , Gustavo Capannelli , Aldo Bottino
发明人： Paolo Casara , Alessandro Gianazza , Ivano Miracca , Giuseppe Merelli , Gustavo Capannelli , Aldo Bottino
IPC分类号： B01J19/00 , C01C1/02
CPC分类号： C07C273/04 , B01D53/326 , B01D53/58 , B01D53/75 , B01D61/44 , B01D61/445 , C02F1/20 , C02F1/441 , C02F1/4693 , C07C273/16 , Y02P20/582
摘要： A process for the recovery of ammonia contained in a gaseous purging stream produced in a synthesis process of urea.
摘要翻译：在尿素的合成过程中产生的气态吹扫液中所含的氨的回收方法。

2. 发明授权

US4188354A Method for the preparation of asymmetrical membranes 失效
标题翻译：制备不对称膜的方法
公开(公告)号：US4188354A
公开(公告)日：1980-02-12
申请号：US820322
申请日：1977-07-29
申请人： Stelio Munari , Fernando Vigo , Gustavo Capannelli , Claudio Uliana , Aldo Bottino
发明人： Stelio Munari , Fernando Vigo , Gustavo Capannelli , Claudio Uliana , Aldo Bottino
IPC分类号： B01D71/28 , B01D67/00 , B01D71/32 , B01D71/34 , B01D71/44 , B01D71/78 , B01D71/82 , C08J5/18 , C08J5/22 , C08L27/12 , C08L27/16 , C09D127/12 , B29D27/04
CPC分类号： B01D71/34 , B01D67/0011 , B01D69/02
摘要： Asymmetric membranes for osmosis and ultrafiltration are prepared from fluorinated polymers which are dissolved in one or more solvents, cast on a plate, allowed to evaporate and precipitated with a nonsolvent. The polymeric material can variously be modified by chemical reactions, irradiations or both. By varying the chemical and physical parameters of the preparation run, a variety of membranes can be obtained which have the most varied performances and properties.
摘要翻译：用于渗透和超滤的不对称膜由溶解在一种或多种溶剂中的氟化聚合物制备，浇铸在板上，允许蒸发并用非溶剂沉淀。聚合物材料可以通过化学反应，照射或两种方法进行各种修饰。通过改变制备过程的化学和物理参数，可以获得具有最多变化性能和性质的各种膜。

3. 发明申请

US20130312445A1 CONTACTOR MODULE WITH HYDROPHOBIC CAPILLARY MEMBRANES, INTEGRATED IN A HEAT EXCHANGER AND HYBRID PLANT FOR THE DEHUMIDIFICATION/CONDITIONING OF AIR 审中-公开
公开(公告)号：US20130312445A1
公开(公告)日：2013-11-28
申请号：US13877133
申请日：2011-09-29
申请人： Carlo Isetti , Enrico Nannei , Gustavo Capannelli , Aldo Bottino
发明人： Carlo Isetti , Enrico Nannei , Gustavo Capannelli , Aldo Bottino
IPC分类号： F24F3/14 , F25D17/06
CPC分类号： F24F3/1429 , B01D53/1425 , B01D53/263 , B01D53/265 , B01D53/28 , B01D2251/306 , B01D2251/60 , B01D2252/10 , B01D2257/80 , B01D2258/06 , F24F3/1417 , F24F5/0014 , F24F13/30 , F24F2003/1435 , F24F2003/144 , F25D17/06 , F28D21/0015 , F28F13/003
摘要： The present invention concerns a contact module (10) operating with three fluids, air, coolant fluid and desiccant solution, with hydrophobic tubular membranes for the dehumidification and/or cooling of process air, said contact module comprising plurality of conduits (1) for the refrigerant fluid, in particular typically frigorific evaporating fluid, the contact module being characterized in that:—the space between said plurality of conduits (1) is substantially filled with a plurality of capillary pipes (2) in hydrophobic micro-porous membrane whose lumen is suitable to be crossed by and whose main extension direction is perpendicular to said plurality of conduits (1);—on the two opposite surfaces of the contact module at the ends of said plurality of capillary pipes, one or more closing material layers, in particular of hardening resin, are disposed, for incorporating the end parts of said plurality of capillary pipes and sealing the thus created space between said plurality of capillary pipes, said space being suitable to let a desiccant solution pass which laps the external surface of said plurality of capillary pipes without being able to penetrate in their interior owing to the hydrophobic nature of their material, said two opposite surfaces having been subjected to cutting mechanical operations to the end of opening the lumen of said more capillary pipes making thus possible the passage of the air to be dehumidified and/or cooled;—on the opposite surfaces at the ends of said plurality of conduits (1) respective collectors (2) are arranged for the collection of the coolant fluid and the desiccant solution. The invention further concerns an integrated plant (300, 400) for the dehumidification and conditioning of air, which makes use of one or two contact modules according to the invention.

4. 发明申请

US20110091369A1 METHOD FOR THE RECOVERY OF AMMONIA FROM A GASEOUS STREAM IN A SYNTHESIS PROCESS OF UREA 有权
标题翻译：在尿素合成过程中从气体流中恢复氨的方法
公开(公告)号：US20110091369A1
公开(公告)日：2011-04-21
申请号：US12743717
申请日：2008-11-14
申请人： Paolo Casara , Alessandro Gianazza , Ivano Miracca , Giuseppe Merelli , Gustavo Capannelli , Aldo Bottino
发明人： Paolo Casara , Alessandro Gianazza , Ivano Miracca , Giuseppe Merelli , Gustavo Capannelli , Aldo Bottino
IPC分类号： C01C1/04 , C07C273/02 , B01D61/42
CPC分类号： C07C273/04 , B01D53/326 , B01D53/58 , B01D53/75 , B01D61/44 , B01D61/445 , C02F1/20 , C02F1/441 , C02F1/4693 , C07C273/16 , Y02P20/582
摘要： The present invention relates to a process for the recovery of ammonia contained in a gaseous purging stream produced in a synthesis process of urea, comprising the following phases: a) subjecting the gaseous purging stream to a washing with an aqueous acidic solution, at a pH ranging from 1 to 6, with the formation of a first purified gaseous stream and an aqueous solution containing an ammonium salt; b) subjecting the aqueous solution containing the ammonium salt coming from phase a) to stripping, after treatment with a strong base, at a temperature ranging from 50 to 250° C. and a pressure ranging from 1 to 40 absolute bar, with the formation of a second gaseous stream comprising NH3, H2O and possibly CO2 and a solution containing a salt of the cation of said strong base; c) subjecting the solution containing the salt of the cation of the strong base coming from phase b) to a Membrane Electrochemical Process (MEP) with the formation of an aqueous solution of the acid used in phase a), an aqueous solution of the base used in phase b) and possibly a diluted aqueous solution of the cation salt of the strong base; d) recycling said aqueous solution of the acid and aqueous solution of the base to phase a) and to phase b) respectively, and recycling said second gaseous stream coming from phase b) to the urea synthesis process. The relative equipment is also described.
摘要翻译：本发明涉及一种在尿素合成过程中产生的气态吹扫液中所含的氨的回收方法，包括以下阶段：a）在酸性溶液中以pH值进行洗涤，形成第一纯化气流和含有铵盐的水溶液; b）使来自a）相的含有铵盐的水溶液在强碱处理后，在50-250℃的温度和1至40绝对巴的压力下进行汽提，同时形成包含NH 3，H 2 O和可能的CO 2的第二气流和含有所述强碱的阳离子的盐的溶液; c）在相a）中使用的酸的水溶液的形成，将含有来自相b）的强碱的阳离子盐的溶液经受膜电化学工艺（MEP），将碱的水溶液在阶段b）中使用，并且可能是强碱的阳离子盐的稀释水溶液; d）将所述碱的酸和水溶液的所述水溶液分别循环到a）相和b相，并将来自b）相的所述第二气流再循环到尿素合成过程。还描述了相关设备。

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