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    OXYCOMBUSTION SYSTEMS AND METHODS WITH THERMALLY INTEGRATED AMMONIA SYNTHESIS
    83.
    发明申请
    OXYCOMBUSTION SYSTEMS AND METHODS WITH THERMALLY INTEGRATED AMMONIA SYNTHESIS 审中-公开
    具有热积分氨基酸合成的氧化系统和方法

    公开(公告)号：US20150183650A1

    公开(公告)日：2015-07-02

    申请号：US14143737

    申请日：2013-12-30

    申请人： Saudi Arabian Oil Company

    发明人： Mourad Younes ,  Tidjani Niass

    IPC分类号： C01C1/04 ,  B01J12/00 ,  C07C273/04 ,  C07C273/10

    CPC分类号： C01C1/0417 ,  B01D53/1418 ,  B01D2256/22 ,  B01J12/00 ,  C01C1/0488 ,  C07C273/04 ,  C07C273/10 ,  F23L7/007 ,  Y02E20/344 ,  Y02P20/129 ,  Y02P20/52

    摘要： Oxycombustion systems and oxycombustion methods include thermally integrated ammonia synthesis. The oxycombustion systems may include an air separation unit that separates air into an oxygen stream and a nitrogen stream. An ammonia synthesis unit synthesizes ammonia from a hydrogen feed and the nitrogen stream to form a crude ammonia stream. An ammonia separation unit condenses the crude ammonia stream and separates the ammonia from any unreacted nitrogen and hydrogen to form a purified ammonia stream. An oxycombustion reactor combusts a fuel from a fuel feed stream in the presence of the oxygen stream from the air separation unit to generate hot water or steam. At least one thermal integration may be present in the oxycombustion systems and may be chosen from a reactor thermal linkage of the ammonia synthesis unit with the oxycombustion reactor, a separator thermal linkage of the air separation unit with the ammonia separation unit, or both.

    摘要翻译： 氧燃烧系统和氧燃烧方法包括热合成氨合成。 氧燃烧系统可以包括将空气分离成氧气流和氮气流的空气分离单元。 氨合成单元从氢气进料和氮气流中合成氨以形成粗氨气流。 氨分离单元冷凝粗氨流并将氨与任何未反应的氮和氢分离以形成纯化的氨流。 氧燃烧反应器在来自空气分离单元的氧气流的存在下燃烧来自燃料进料流的燃料，以产生热水或蒸汽。 在氧燃烧系统中可以存在至少一个热积分，并且可以选自氨合成单元与氧燃烧反应器的反应器热连接，空气分离单元与氨分离单元的分离器热连接，或两者。

    Process for combined production of ammonia and urea
    86.
    发明申请
    Process for combined production of ammonia and urea 有权

    公开(公告)号：US20010002245A1

    公开(公告)日：2001-05-31

    申请号：US09759347

    申请日：2001-01-16

    发明人： Giorgio Pagani ,  Umberto Zardi

    IPC分类号： C07C273/00 ,  B32B005/02 ,  B32B027/04 ,  B32B027/12 ,  F28D001/00 ,  B01J008/02 ,  B01J035/02 ,  C01C001/04

    CPC分类号： C07C273/10 ,  C01C1/0488 ,  Y02P20/52 ,  Y02P20/582

    摘要： A process for the combined production of ammonia and urea of the type comprising an ammonia synthesis reactor (2), a urea synthesis reactor (5) and a urea recovery section (21) stands out for the fact of submitting at least a part of a flow comprising carbamate in aqueous solution coming from the urea recovery section (21) to a partial decomposition treatment, to obtain a flow comprising ammonia and carbon dioxide in vapor phase and a flow comprising diluted carbamate in aqueous solution, which is fed together with a gas flow comprising hydrogen, nitrogen and carbon dioxide, preferably obtained by hydrocarbons steam reforming, and a flow comprising ammonia coming from the ammonia synthesis reactor (2) to a carbamate synthesis section (3), where ammonia and carbon dioxide are caused to react, to obtain a flow comprising carbamate in aqueous solution and a gas flow comprising hydrogen and nitrogen. The flow comprising carbamate in aqueous solution is then sent to the urea synthesis reactor (5), while the gas flow comprising hydrogen and nitrogen is sent to the ammonia synthesis reactor (2).

    Integrated ammonia-urea process
    87.
    发明授权
    Integrated ammonia-urea process 失效
    综合氨 - 尿素工艺

    公开(公告)号：US4869887A

    公开(公告)日：1989-09-26

    申请号：US115242

    申请日：1987-10-30

    申请人： Christiaan P. Van Dijk

    发明人： Christiaan P. Van Dijk

    IPC分类号： C01C1/04 ,  C07C273/10

    CPC分类号： C01C1/0488 ,  C07C273/10 ,  Y02P20/52

    摘要： An integrated ammonia urea process where the reaction of carbon dioxide and ammonia is in a urea reactor having a condensing section, a reaction section having more than one stage and a stripping section. The raw ammonia synthesis gas containing carbon dioxide is introduced into the stripping section of the urea reactor at a pressure selected within the range of 2000 and 3500 psig. The stripping effluent removed from the stripping section comprises the raw ammonia synthesis gas, carbon dioxide and ammonia which is introduced into a state of the reaction section.

    摘要翻译： 一种其中二氧化碳和氨的反应在具有冷凝段，具有多于一个级的反应段和汽提段的尿素反应器中的综合氨尿法。 含有二氧化碳的原氨合成气以2000psig和3500psig范围内的压力被引入尿素反应器的汽提部分。 从汽提段除去的汽提流出物包含原氨合成气，二氧化碳和氨，其被引入反应段的状态。

    Method and the reuse of sewage waters of the combined urea-ammonia installations
    88.
    发明授权
    Method and the reuse of sewage waters of the combined urea-ammonia installations 失效
    组合尿氨装置污水的方法和再利用

    公开(公告)号：US4327068A

    公开(公告)日：1982-04-27

    申请号：US234159

    申请日：1981-02-13

    申请人： Vincenzo Lagana ,  Umberto Zardi

    发明人： Vincenzo Lagana ,  Umberto Zardi

    IPC分类号： C01C1/04 ,  C01B3/02 ,  C07C67/00 ,  C07C239/00 ,  C07C273/04 ,  C07C273/10

    CPC分类号： C01B3/025 ,  C07C273/10

    摘要： A method is disclosed for reusing the processing condensates in a combined plant for the production of ammonia and urea. The condensates are combined into a single stream, filtered to remove the solid substances in suspension, if any, and fed to a boiler for the production of steam while exploiting the sensible heat. Pollution of sewage waters is prevented while obtaining a considerable economy in the running costs.

    摘要翻译： 公开了一种用于在用于生产氨和尿素的组合设备中重新使用处理冷凝物的方法。 将冷凝物组合成单一流，过滤以除去悬浮液中的固体物质（如果有的话），并且在利用显热的同时将其送入锅炉中以产生蒸汽。 防止污水污染，同时在运行成本方面获得相当大的经济效益。

    Combined process for the production of urea and ammonia
    89.
    发明授权
    Combined process for the production of urea and ammonia 失效
    用于生产尿素和氨的组合方法

    公开(公告)号：US4291006A

    公开(公告)日：1981-09-22

    申请号：US059217

    申请日：1979-07-20

    申请人： Giorgio Pagani ,  Vincenzo Lagana ,  Francesco Saviano

    发明人： Giorgio Pagani ,  Vincenzo Lagana ,  Francesco Saviano

    IPC分类号： C01C1/04 ,  C07C273/10

    CPC分类号： C01C1/0488 ,  C07C273/10 ,  Y02P20/52

    摘要： In an integrated or combined process for the production of ammonia and urea, the improvement consisting in that the absorption of CO.sub.2 from the raw gas going to the synthesis reactor for ammonia is carried out with an absorption apparatus which is divided into two sections, one being of the plate type and the other of the thin film type. The predominant fraction of CO.sub.2 is stripped in the thin-film section, the remainder in the adiabatic plate section.

    摘要翻译： 在用于生产氨和尿素的综合或组合方法中，改进包括从进入氨的合成反应器的原料气体吸收CO 2，其中吸收装置分为两部分，一个是 的板型，另一种为薄膜型。 在薄膜部分剥离CO 2的主要部分，其余部分在绝热板部分中。

    Integrated ammonia-urea process
    90.
    发明授权
    Integrated ammonia-urea process 失效
    综合氨 - 尿素工艺

    公开(公告)号：US4235816A

    公开(公告)日：1980-11-25

    申请号：US18729

    申请日：1979-03-08

    申请人： Vincenzo Lagana ,  Francesco Saviano

    发明人： Vincenzo Lagana ,  Francesco Saviano

    IPC分类号： C07C273/10 ,  C07C126/00

    CPC分类号： C07C273/10

    摘要： An integrated ammonia-urea process is disclosed which uses as the starting gas mixture a stream coming, for example, from steam reforming of hydrocarbons, carbon dioxide being stripped from the stream by the action of a very concentrated ammonia solution (above 70% by wt) first and the the action of an ammoniated solution of ammonium carbonate secondly, a solution of ammonium carbamate being obtained together with a gas stream composed of nitrogen and hydrogen; sending the carbamate solution to the urea reactor, discharging from the urea reactor the urea solution containing unconverted carbamate and excess ammonia, decomposing said carbamate and sending evolved ammonia to the urea reactor again along with carbon dioxide, discharging the urea solution having now 50% of the original carbamate to an adiabatic stripper in which the stripping gas is essentially composed of hydrogen and nitrogen, removing ammonia and carbon dioxide with water from the adiabatic stripper and condensing ammonia and carbon dioxide by heat exchange, sending the stream of hydrogen and nitrogen to methanization and ammonia synthesis and concentrating the urea solution directly until obtaining a urea melt.

    摘要翻译： 公开了一种综合的氨 - 尿素方法，其用作起始气体混合物，例如来自烃的蒸汽重整的物流，通过非常浓缩的氨溶液（高于70重量％ ）和氨化氨化碳酸铵溶液的作用二次，将氨基甲酸铵溶液与由氮和氢组成的气流一起获得; 将氨基甲酸酯溶液送到尿素反应器，从尿素反应器中排出含有未转化的氨基甲酸酯和过量氨的尿素溶液，分解所述氨基甲酸酯并再次将二氧化碳排放到尿素反应器中，将现有的50％ 将原始氨基甲酸酯转化成绝热汽提塔，其中汽提气体基本上由氢气和氮气组成，用绝热汽提塔的水除去氨和二氧化碳，并通过热交换冷凝氨和二氧化碳，将氢气和氮气送入甲烷化 和氨合成并直接浓缩尿素溶液直到获得尿素熔体。