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1. 发明授权

US06200540B1 Urea synthesis apparatus 有权
标题翻译：尿素合成装置
公开(公告)号：US06200540B1
公开(公告)日：2001-03-13
申请号：US09307807
申请日：1999-05-10
申请人： Yasuhiko Kojima , Hidetsugu Fujii
发明人： Yasuhiko Kojima , Hidetsugu Fujii
IPC分类号： B01J1000
CPC分类号： C07C273/04 , B01D5/0063 , B01J19/006 , B01J2219/00006 , B01J2219/00108 , B01J2219/0011 , B01J2219/00777
摘要： A vertical condenser is installed on or above a urea synthesis column to condense the mixed gas from the stripper by bringing it into contact with an absorption medium under cooling. A first down pipe for making the top part of the condenser communicate with the bottom part of the synthesis column is provided to allow the resultant condensate to flow down to the bottom part of the synthesis column by gravity. The condensate is subjected to urea synthesis together with feed ammonia or a part of feed carbon dioxide supplied thereto. The urea synthesis solution thus formed is introduced into the stripper by gravity through a second down pipe having an opening in the top part of the synthesis column. Unreacted ammonia and carbon dioxide are separated as the aforesaid mixed gas by the rest of the feed carbon dioxide and introduced into the bottom part of the aforesaid condenser so as to be condensed. Alternatively, the condensate from the vertical condenser is sucked by means of an ejector using preheated feed liquid ammonia as the driving fluid, so that it is introduced into the bottom part of the urea synthesis column and is subjected to urea synthesis.
摘要翻译：立式冷凝器安装在尿素合成塔上或上方，通过使其与冷却下的吸收介质接触而将来自汽提塔的混合气体冷凝。提供用于使冷凝器的顶部与合成塔的底部连通的第一下管，以使所得的冷凝物通过重力向下流到合成塔的底部。冷凝物与供给氨或供给二氧化碳的一部分进行尿素合成。如此形成的尿素合成溶液通过重力通过在合成塔的顶部具有开口的第二下管引入汽提器。未反应的氨和二氧化碳作为前述混合气体被剩余的进料二氧化碳分离，并被引入上述冷凝器的底部以便冷凝。或者，来自垂直冷凝器的冷凝物借助于使用预热的进料液氨作为驱动流体的喷射器吸入，从而将其引入到尿素合成塔的底部并进行尿素合成。

2. 发明授权

US6093850A Process for the synthesis of urea and equipment therefor 有权
标题翻译：合成尿素及其设备的方法
公开(公告)号：US6093850A
公开(公告)日：2000-07-25
申请号：US269164
申请日：1999-03-23
申请人： Yasuhiko Kojima , Hidetsugu Fujii
发明人： Yasuhiko Kojima , Hidetsugu Fujii
IPC分类号： B01D5/00 , B01D53/00 , B01J3/04 , B01J10/00 , B01J19/00 , B01J19/02 , B01J19/26 , C07C273/04 , C07C275/00
CPC分类号： C07C273/04 , B01D5/0003 , B01D53/002 , B01J10/002 , B01J19/006 , B01J19/0073 , B01J19/02 , B01J19/26 , B01J3/04 , B01J2219/00078 , B01J2219/00083 , B01J2219/00103 , B01J2219/00777 , B01J2219/0277 , B01J2219/182 , B01J2219/185 , B01J2219/1943 , Y02P20/149 , Y02P70/34
摘要： The present invention provides an improved process for synthesizing urea from ammonia and carbon dioxide while preventing corrosion of sites, that are to be in contact with a condensate, of the joints of a tube plate and cooling tubes in a condenser installed vertically or horizontally. According to this process, the sites, that are to be in contact with the condensate, of the joints of the tube plate and the cooling tubes in the condenser are prevented from corrosion by enveloping the sites with liquid ammonia or a solution rich in ammonia in the synthesis of urea comprising separating unreacted ammonia and carbon dioxide as a gaseous mixture thereof from a urea synthesis solution at a pressure substantially equal to the urea synthesis pressure, bringing the gaseous mixture into contact with an absorption medium in the condenser to form a condensate, and recirculating the condensate to the synthesis column.
摘要翻译： PCT No.PCT / JP98 / 05698 Sec。 371 1999年3月23日 102（e）1999年3月23日PCT 1998年12月17日PCT PCT。公开号WO99 / 31053 日期1999年6月24日本发明提供了一种从氨和二氧化碳合成尿素的改进方法，同时防止与冷凝器接触的位置的腐蚀，管冷却器的接头和冷凝器中的冷却管安装垂直或水平根据该过程，通过用液氨或富含氨的溶液包围所述部位，防止了冷凝器中的管板和冷却管的接头与冷凝物接触的部位被腐蚀尿素的合成，其包括以基本上等于尿素合成压力的压力从尿素合成溶液中分离其未反应的氨和二氧化碳作为其气体混合物，使气态混合物与冷凝器中的吸收介质接触以形成冷凝物，并将冷凝物再循环到合成塔。

3. 发明授权

US5936122A Urea synthesis process and apparatus therefor 失效
标题翻译：尿素合成方法及其设备
公开(公告)号：US5936122A
公开(公告)日：1999-08-10
申请号：US939126
申请日：1997-09-26
申请人： Yasuhiko Kojima , Hidetsugu Fujii
发明人： Yasuhiko Kojima , Hidetsugu Fujii
IPC分类号： B01D5/00 , B01J10/00 , B01J19/00 , C07C273/04 , C07C275/00
CPC分类号： C07C273/04 , B01D5/0063 , B01J19/006 , B01J2219/00006 , B01J2219/00108 , B01J2219/0011 , B01J2219/00777
摘要： A vertical condenser is installed on or above a urea synthesis column to condense the mixed gas from the stripper by bringing it into contact with an absorption medium under cooling. A first down pipe for making the top part of the condenser communicate with the bottom part of the synthesis column is provided to allow the resultant condensate to flow down to the bottom part of the synthesis column by gravity. The condensate is subjected to urea synthesis together with feed ammonia or a part of feed carbon dioxide supplied thereto. The urea synthesis solution thus formed is introduced into the stripper by gravity through a second down pipe having an opening in the top part of the synthesis column. Unreacted ammonia and carbon dioxide are separated as the aforesaid mixed gas by the rest of the feed carbon dioxide and introduced into the bottom part of the aforesaid condenser so as to be condensed. Alternatively, the condensate from the vertical condenser is sucked by means of an ejector using preheated feed liquid ammonia as the driving fluid, so that it is introduced into the bottom part of the urea synthesis column and is subjected to urea synthesis.
摘要翻译：立式冷凝器安装在尿素合成塔上或上方，通过使其与冷却下的吸收介质接触而将来自汽提塔的混合气体冷凝。提供用于使冷凝器的顶部与合成塔的底部连通的第一下管，以使所得的冷凝物通过重力向下流到合成塔的底部。冷凝物与供给氨或供给二氧化碳的一部分进行尿素合成。如此形成的尿素合成溶液通过重力通过在合成塔的顶部具有开口的第二下管引入汽提器。未反应的氨和二氧化碳作为前述混合气体被剩余的进料二氧化碳分离，并被引入上述冷凝器的底部以便冷凝。或者，来自垂直冷凝器的冷凝物借助于使用预热的进料液氨作为驱动流体的喷射器吸入，从而将其引入到尿素合成塔的底部并进行尿素合成。

4. 发明授权

US07270689B2 Reformer 有权
标题翻译：改革者
公开(公告)号：US07270689B2
公开(公告)日：2007-09-18
申请号：US10890973
申请日：2004-07-14
申请人： Hidetsugu Fujii , Fumitake Watanabe , Katsuya Uehara , Yukuo Katayama
发明人： Hidetsugu Fujii , Fumitake Watanabe , Katsuya Uehara , Yukuo Katayama
IPC分类号： C01B3/32
CPC分类号： C01B3/382 , B01J8/0453 , B01J8/0492 , B01J2208/025 , B01J2219/0277 , C01B2203/00 , C01B2203/0233 , C01B2203/0844 , C01B2203/1041 , C01B2203/1052 , C01B2203/1241 , C01B2203/143 , C01B2203/82
摘要： A reformer for reacting a raw material gas to be reformed, with an oxidizing agent gas and a reforming agent gas in the presence of an oxidation catalyst and a reforming catalyst to obtain a hydrogen-containing gas, including: a set of catalyst layers consisting of an oxidation catalyst layer and a reforming catalyst layer, and two or more inlets for feeding the oxidizing agent gas to the oxidation catalyst and/or the reforming catalyst in plural stages. The reformer can produce a hydrogen-containing gas without forming a combustion region of a temperature of as high as one thousand and several hundreds centigrade and can be manufactured at a low cost.
摘要翻译：一种重整器，用于在氧化催化剂和重整催化剂的存在下使待重整的原料气体与氧化剂气体和重整剂气体反应以获得含氢气体，包括：一组由氧化催化剂层和重整催化剂层，以及用于将氧化剂气体多级进料至氧化催化剂和/或重整催化剂的两个或更多个入口。重整器可以产生含氢气体，而不形成高达一千和几百摄氏度的燃烧区域，并且可以以低成本制造。

5. 发明授权

US07201889B2 Fuel reforming method and system 失效
标题翻译：燃料重整方法与系统
公开(公告)号：US07201889B2
公开(公告)日：2007-04-10
申请号：US10349997
申请日：2003-01-24
申请人： Keiji Murata , Kazuaki Nakagawa , Yoshikazu Hagiwara , Kazuya Yamada , Mitsutoshi Hamamura , Yasuhito Sakakibara , Hidetsugu Fujii
发明人： Keiji Murata , Kazuaki Nakagawa , Yoshikazu Hagiwara , Kazuya Yamada , Mitsutoshi Hamamura , Yasuhito Sakakibara , Hidetsugu Fujii
IPC分类号： C01B3/26 , B01J8/04 , B01J10/00
CPC分类号： B01J20/0229 , B01D53/04 , B01D2257/504 , B01D2259/40088 , B01D2259/41 , B01J8/0453 , B01J20/0211 , B01J20/041 , B01J20/06 , B01J20/10 , B01J20/3458 , B01J20/3483 , B01J2208/00061 , B01J2208/00309 , B01J2208/00504 , B01J2208/00513 , B01J2208/0053 , B01J2219/00038 , C01B3/382 , C01B3/46 , C01B3/56 , C01B2203/0227 , C01B2203/0233 , C01B2203/0425 , C01B2203/043 , C01B2203/0475 , C01B2203/0805 , C01B2203/0811 , C01B2203/0822 , C01B2203/0827 , C01B2203/0866 , C01B2203/1619 , Y02C10/08 , Y02P20/128 , Y02P20/152 , Y02P20/52 , Y02P30/30
摘要： A fuel reforming method includes the step of supplying carbon-containing fuel and steam to a reactor filled with a fuel reforming catalyst and a CO2 absorbent and discharging CO2, and setting the absorbent at an absorption temperature, thereby converting the carbon-containing fuel into reformed fuel, and separating CO2 from the reformed fuel, the step of obtaining a product gas by oxidizing a portion of the reformed fuel and/or the carbon-containing fuel with an oxidizer, and heating the absorbent with this product gas to a regeneration temperature, thereby regenerating the absorbent and storing heat in this absorbent, and the step of supplying the carbon-containing fuel and steam to the reactor, thereby cooling, to the absorption temperature, the absorbent heated to the regeneration temperature, and converting the carbon-containing fuel into reformed fuel by heat energy stored in the CO2 absorbent. An apparatus for the method is also disclosed.
摘要翻译：燃料重整方法包括向填充有燃料重整催化剂和CO 2吸收剂并排出CO 2的反应器供应含碳燃料和蒸汽的步骤，并设置在吸收温度下的吸收剂，由此将含碳燃料转化为重整燃料，并从重整燃料中分离CO 2，通过氧化一部分重整燃料获得产物气体的步骤;以及 /或具有氧化剂的含碳燃料，并将该产物气体的吸收剂加热到再生温度，从而再生吸收剂并在该吸收剂中储存热量，以及将含碳燃料和蒸汽供应到反应器的步骤，从而将加热到再生温度的吸收剂冷却至吸收温度，并且通过存储在CO 2吸收剂中的热能将含碳燃料转化为重整燃料。还公开了一种用于该方法的装置。

6. 发明授权

US6060125A Method and apparatus for controlling opening and closing speed of dispensing gun valve mechanism 有权
标题翻译：用于控制分配枪阀机构的打开和关闭速度的方法和装置
公开(公告)号：US6060125A
公开(公告)日：2000-05-09
申请号：US228360
申请日：1999-01-11
申请人： Hidetsugu Fujii
发明人： Hidetsugu Fujii
IPC分类号： B05D1/26 , B05C5/00 , B05C5/02 , B05C11/10 , B05D1/02
CPC分类号： B05C5/0225
摘要： Dispensing apparatus including a dispensing gun having a gun body and a valve mechanism disposed in the gun body. The valve mechanism is operatively coupled to a piston mounted for reciprocating movement and the valve mechanism is operable between opened and closed positions for selectively dispensing liquid from the dispensing gun. A hydraulic actuator is operatively coupled to the piston for moving the piston by way of an output of hydraulic pressure. A flow control device is operatively coupled to the hydraulic actuator for regulating liquid flow from the hydraulic actuator and thereby controlling at least one of the opening speed and closing speed of the valve mechanism. A method of dispensing liquid in accordance with the disclosure includes holding a supply of pressurized liquid in a liquid passage of the dispensing gun, moving the piston under the force of hydraulic pressure to move the valve mechanism from the closed position to the opened position, and dispensing pressurized liquid from the gun.
摘要翻译：分配装置包括具有喷枪主体和设置在枪体内的阀机构的分配枪。阀机构可操作地联接到安装成往复运动的活塞，并且阀机构可在打开位置和关闭位置之间操作，用于从分配枪选择性地分配液体。液压致动器可操作地联接到活塞上，用于通过液压输出来移动活塞。流量控制装置可操作地联接到液压致动器，用于调节来自液压致动器的液体流量，从而控制阀机构的打开速度和关闭速度中的至少一个。根据本发明的分配液体的方法包括将加压液体供应在分配枪的液体通道中，在液压力的作用下移动活塞以将阀机构从关闭位置移动到打开位置，以及从枪中分配加压液体。

7. 发明授权

US5965071A Process for preparing granular urea 失效
标题翻译：颗粒状尿素的制备方法
公开(公告)号：US5965071A
公开(公告)日：1999-10-12
申请号：US913871
申请日：1997-09-05
申请人： Hidetsugu Fujii , Haruyuki Morikawa
发明人： Hidetsugu Fujii , Haruyuki Morikawa
IPC分类号： B01J2/02 , B01J2/04 , B01J2/16 , C05C9/00 , C05C9/02 , C07C273/02 , C07C273/14 , C07C275/00 , B29B9/10
CPC分类号： B01J2/16 , B01J2/04 , C05C9/005 , C07C273/02 , C07C273/14
摘要： The present invention provides a process for preparing granular urea, which solves the problem of removing moisture in a prilling tower method and the problem of concentrating diluted formaldehyde in granulation by a fluidized, spouted bed method when urea is granulated in the presence of formaldehyde. That is, the present invention provides a process for preparing granular urea from liquid drops or sprayed drops of a urea solution, wherein the urea solution is divided into two portions of a urea solution A and a urea solution B, and a urea solution prepared by mixing an aqueous formaldehyde solution with the urea solution A, concentrating the above mixed solution and then mixing it with the urea solution B is used.
摘要翻译： PCT No.PCT / JP97 / 00108 Sec。 371日期：1997年9月5日 102（e）1997年9月5日PCT 1997年1月21日PCT PCT。公开号WO97 / 28100 PCT 日期：1997年8月7日本发明提供了一种制备颗粒状尿素的方法，其解决了造粒塔法中除去水分的问题，以及当尿素成粒时，通过流化喷雾床方法将稀释的甲醛浓缩成粒状的问题存在甲醛。也就是说，本发明提供了一种从尿液溶液的液滴或喷雾液滴制备颗粒状尿素的方法，其中将尿素溶液分成尿素溶液A和尿素溶液B两部分，尿素溶液由将甲醛水溶液与尿素溶液A混合，浓缩上述混合溶液，然后与尿素溶液B混合。

8. 发明授权

US4365089A Synthesis of urea 失效
标题翻译：尿素合成
公开(公告)号：US4365089A
公开(公告)日：1982-12-21
申请号：US293926
申请日：1981-08-18
申请人： Hiroshi Ono , Hidetsugu Fujii , Shigeru Inoue
发明人： Hiroshi Ono , Hidetsugu Fujii , Shigeru Inoue
IPC分类号： C07C67/00 , C07C239/00 , C07C273/04 , C07C126/02
CPC分类号： C07C273/04
摘要： The specification describes a process for synthesizing urea. The process comprises reacting ammonia and carbon dioxide in a molar ratio of 3:1-5:1 and at a pressure of 150-250 Kg/cm.sup.2 G, subjecting the resultant reaction mixture to a stripping step using gaseous carbon dioxide at a pressure substantially equal to the urea synthesis pressure and a temperature of 195.degree.-210.degree. C. to remove unreacted ammonia and unreacted carbon dioxide contained in the reaction mixture so that the content of unreacted ammonia is lowered to 10-15% by weight. This invention ensures a high conversion ratio from carbon dioxide to urea, considerably little formation of biuret during the stripping step, and reduced consumption of high pressure steam.
摘要翻译：该说明书描述了合成尿素的方法。该方法包括使氨和二氧化碳以3：1-5：1的摩尔比和150-250Kg / cm2G的压力进行反应，将所得反应混合物进行汽提步骤，使用气态二氧化碳，压力基本相等至尿素合成压力和195℃-210℃的温度以除去反应混合物中所含的未反应的氨和未反应的二氧化碳，使得未反应的氨的含量降低至10-15重量％。本发明确保了从二氧化碳到尿素的高转化率，在汽提步骤期间几乎不少的缩二脲形成，并降低了高压蒸汽的消耗。

9. 发明申请

US20050013752A1 Reformer 有权
标题翻译：改革者
公开(公告)号：US20050013752A1
公开(公告)日：2005-01-20
申请号：US10890973
申请日：2004-07-14
申请人： Hidetsugu Fujii , Fumitake Watanabe , Katsuya Uehara , Yukuo Katayama
发明人： Hidetsugu Fujii , Fumitake Watanabe , Katsuya Uehara , Yukuo Katayama
IPC分类号： B01J8/04 , C01B3/38 , B01J8/00
CPC分类号： C01B3/382 , B01J8/0453 , B01J8/0492 , B01J2208/025 , B01J2219/0277 , C01B2203/00 , C01B2203/0233 , C01B2203/0844 , C01B2203/1041 , C01B2203/1052 , C01B2203/1241 , C01B2203/143 , C01B2203/82
摘要： A reformer for reacting a raw material gas to be reformed, with an oxidizing agent gas and a reforming agent gas in the presence of an oxidation catalyst and a reforming catalyst to obtain a hydrogen-containing gas, including: a set of catalyst layers consisting of an oxidation catalyst layer and a reforming catalyst layer, and two or more inlets for feeding the oxidizing agent gas to the oxidation catalyst and/or the reforming catalyst in plural stages. The reformer can produce a hydrogen-containing gas without forming a combustion region of a temperature of as high as one thousand and several hundreds centigrade and can be manufactured at a low cost.
摘要翻译：一种重整器，用于在氧化催化剂和重整催化剂的存在下使待重整的原料气体与氧化剂气体和重整剂气体反应以获得含氢气体，包括：一组由氧化催化剂层和重整催化剂层，以及用于将氧化剂气体多级进料至氧化催化剂和/或重整催化剂的两个或更多个入口。重整器可以产生含氢气体，而不形成高达一千和几百摄氏度的燃烧区域，并且可以以低成本制造。

10. 发明授权

US06203730B1 Method for granulation and granulator 有权
标题翻译：制粒造粒机的方法
公开(公告)号：US06203730B1
公开(公告)日：2001-03-20
申请号：US09141992
申请日：1998-08-28
申请人： Tetsuzo Honda , Kimikazu Kido , Yuzuru Yanagisawa , Hidetsugu Fujii
发明人： Tetsuzo Honda , Kimikazu Kido , Yuzuru Yanagisawa , Hidetsugu Fujii
IPC分类号： B29B910
CPC分类号： C05G3/0058 , B01J2/16 , C05C9/005
摘要： There is disclosed an improved, energy-saving granulation method, wherein use is made of a granulator (1) having a bottom floor (9) of a granulation section whose bottom is a perforated plate, an upper air feed pipe (23) for feeding air for fluidization to the bottom floor of the granulation section, a lower air feed pipe (2), air feed pipes (3, 4, 5) branched from the lower air feed pipe for jetting air into the granulation section, and jetting nozzles (6, 7, 8) provided at the centers of the air outlets for jetting a molten raw material; which involves the steps of jetting a molten raw material from the jetting nozzles to approximately spherical nuclei in the granulation section, which have been fed after the particle diameter has been caused to be an average particle diameter of 0.4 to 3.0 mm, to form granules. There is also disclosed an improved granulator.
摘要翻译：公开了一种改进的节能造粒方法，其中使用造粒机（1），其具有底部是多孔板的造粒部分的底部底部（9），用于进给的上部空气供给管（23）用于流态化到造粒部底底的空气，下部空气供给管（2），从下部空气供给管分支用于将空气喷射到造粒部的空气供给管（3,4,5）和喷射喷嘴 6,7,8）设置在空气出口的中心，用于喷射熔融原料; 其包括将熔融原料从喷射喷嘴喷射到造粒部中的近似球形核，在粒径达到0.4〜3.0mm的平均粒径之后进料，形成颗粒。还公开了一种改进的造粒机。

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