Process for the ammonia and methanol co-production
    1.
    发明授权
    Process for the ammonia and methanol co-production 失效
    氨和甲醇联合生产工艺

    公开(公告)号:US6106793A

    公开(公告)日:2000-08-22

    申请号:US983496

    申请日:1997-12-29

    摘要: A process for ammonia and methanol co-production in a plant comprising a first primary reforming section (11) and a secondary reforming section (12) arranged in series, an ammonia synthesis section (13) and a methanol synthesis section (22), is distinguished by the fact that ammonia and methanol are produced in independent synthesis processes where the heat required for the reforming reaction in the methanol process is advantageously obtained by utilizing the high heat content present in the gas flow coming from the secondary reforming section (12) of the ammonia process.

    摘要翻译: PCT No.PCT / IB96 / 01248 Sec。 371 1997年12月29日第 102(e)1997年12月29日PCT PCT 1996年11月19日PCT公布。 出版物WO97 / 19018 日期:1997年5月29日一种在植物中氨和甲醇共同生产的方法,其包括串联排列的第一初级重整段(11)和二级转化段(12),氨合成段(13)和甲醇合成段 22)的区别在于,在独立的合成方法中生产氨和甲醇,其中通过利用来自二次转化段的气流中存在的高热含量有利地获得甲醇工艺中的重整反应所需的热量 (12)的氨法。

    Process for Producing Ammonia Synthesis Gas
    4.
    发明申请
    Process for Producing Ammonia Synthesis Gas 有权
    生产氨合成气的工艺

    公开(公告)号:US20100303703A1

    公开(公告)日:2010-12-02

    申请号:US12744748

    申请日:2008-11-06

    IPC分类号: C01B3/24 C01C1/04

    摘要: The present invention concerns a process for producing ammonia synthesis gas from the reforming of hydrocarbons with steam in a primary reformer (1) equipped with a plurality of externally heated catalytic tubes and then in a secondary reformer (2) together with an oxidant gas. In this process, the reaction of said hydrocarbons with said steam in said primary reformer (1) is performed at an operating pressure of at least 45 bar in the catalytic tubes and a flow of essentially pure oxygen or oxygen-enriched air is added to said secondary reformer as oxidant gas for substantially reforming together with said all the hydrocarbons content of said product gas exiting the primary reformer (1). In the case essentially pure oxygen is used as oxidant gas, a flow of nitrogen is added downstream the secondary reformer (2) to reach a N2/H2 molar ratio corresponding to or close to the stoichiometric ratio for ammonia synthesis. This process allows to obtain high synthesis gas production capacities and lower investment and energy costs.

    摘要翻译: 本发明涉及一种在具有多个外部加热的催化管的初级重整器(1)中随后与二次重整器(2)一起氧化剂气体从具有蒸汽的烃类重整生产氨合成气的方法。 在该方法中,在所述初级重整器(1)中所述烃与所述蒸汽的反应在催化管中在至少45巴的操作压力下进行,并且将基本上纯的氧气或富氧空气流加入到所述 二次重整器作为氧化剂气体,用于与所述一次重整器(1)离开的所述产物气体的所有烃含量一起实质上重整。 在使用基本上纯的氧作为氧化剂气体的情况下,在二次重整器(2)的下游加入氮气流,以达到对应于或接近氨合成化学计量比的N 2 / H 2摩尔比。 该过程允许获得高合成气生产能力,降低投资和能源成本。

    Process and plant for ammonia-urea production

    公开(公告)号:US09708250B2

    公开(公告)日:2017-07-18

    申请号:US14007100

    申请日:2012-02-10

    IPC分类号: C07C273/10 C01C1/04

    摘要: A process for ammonia-urea production where: liquid ammonia produced in an ammonia section is fed to a urea section directly at the ammonia synthesis pressure, and where the liquid ammonia is purified at high pressure with the steps of: cooling the liquid ammonia (20) obtaining a cooled liquid ammonia stream (21), separating a gaseous fraction (22) comprising hydrogen and nitrogen from said cooled liquid ammonia, obtaining purified liquid ammonia (23) at a high pressure, and reheating said purified liquid ammonia (23) after separation of said gaseous fraction, obtaining a reheated purified ammonia (24) having a temperature suitable for feeding to the urea synthesis process. The application also deals with an ammonia-urea plant comprising an ammonia cooler, a liquid-gas separator and an ammonia re-heater and with a method for revamping existing ammonia-urea plants.

    Process for producing ammonia synthesis gas
    6.
    发明授权
    Process for producing ammonia synthesis gas 有权
    氨合成气生产工艺

    公开(公告)号:US09040011B2

    公开(公告)日:2015-05-26

    申请号:US12744748

    申请日:2008-11-06

    摘要: The present invention concerns a process for producing ammonia synthesis gas from the reforming of hydrocarbons with steam in a primary reformer (1) equipped with a plurality of externally heated catalytic tubes and then in a secondary reformer (2) together with an oxidant gas. In this process, the reaction of said hydrocarbons with said steam in said primary reformer (1) is performed at an operating pressure of at least 45 bar in the catalytic tubes and a flow of essentially pure oxygen or oxygen-enriched air is added to said secondary reformer as oxidant gas for substantially reforming together with said all the hydrocarbons content of said product gas exiting the primary reformer (1). In the case essentially pure oxygen is used as oxidant gas, a flow of nitrogen is added downstream the secondary reformer (2) to reach a N2/H2 molar ratio corresponding to or close to the stoichiometric ratio for ammonia synthesis. This process allows to obtain high synthesis gas production capacities and lower investment and energy costs.

    摘要翻译: 本发明涉及一种在具有多个外部加热的催化管的初级重整器(1)中随后与二次重整器(2)一起氧化剂气体从具有蒸汽的烃类重整生产氨合成气的方法。 在该方法中,在所述初级重整器(1)中所述烃与所述蒸汽的反应在催化管中在至少45巴的操作压力下进行,并且将基本上纯的氧气或富氧空气流加入到所述 二次重整器作为氧化剂气体,用于与所述一次重整器(1)离开的所述产物气体的所有烃含量一起实质上重整。 在使用基本上纯的氧作为氧化剂气体的情况下,在二次重整器(2)的下游加入氮气流,以达到对应于或接近氨合成化学计量比的N 2 / H 2摩尔比。 该过程允许获得高合成气生产能力,降低投资和能源成本。

    Process and Plant for Ammonia-Urea Production
    9.
    发明申请
    Process and Plant for Ammonia-Urea Production 有权
    氨 - 尿素生产过程和工厂

    公开(公告)号:US20140018575A1

    公开(公告)日:2014-01-16

    申请号:US14007100

    申请日:2012-02-10

    IPC分类号: C07C273/10

    摘要: A process for ammonia -urea production where: liquid ammonia produced in an ammonia section is fed to a urea section directly at the ammonia synthesis pressure, and where the liquid ammonia is purified at high pressure with the steps of: cooling the liquid ammonia (20) obtaining a cooled liquid ammonia stream (21), separating a gaseous fraction (22) comprising hydrogen and nitrogen from said cooled liquid ammonia, obtaining purified liquid ammonia (23) at a high pressure, and reheating said purified liquid ammonia (23) after separation of said gaseous fraction, obtaining a reheated purified ammonia (24) having a temperature suitable for feeding to the urea synthesis process. The application also deals with an ammonia -urea plant comprising an ammonia cooler, a liquid-gas separator and an ammonia re-heater and with a method for revamping existing ammonia -urea plants.

    摘要翻译: 一种氨 - 脲生产方法,其中在氨段产生的液氨直接以氨合成压力供给到尿素部分,并且液氨在高压下被纯化,其步骤是:冷却液氨(20 获得冷却的液氨流(21),从所述冷却的液氨中分离包含氢和氮的气态馏分(22),在高压下获得纯化液氨(23),并在 分离所述气态馏分,获得具有适于供给到尿素合成方法的温度的再加热的纯化氨(24)。 本申请还涉及一种氨脲装置,其包括氨冷却器,液气分离器和氨再加热器以及用于改造现有氨 - 脲装置的方法。