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    A PROCESS FOR CO-PRODUCTION OF AMMONIA, UREA AND METHANOL
    5.
    发明申请
    A PROCESS FOR CO-PRODUCTION OF AMMONIA, UREA AND METHANOL 有权
    一种生产氨，尿素和甲醇的方法

    公开(公告)号：US20160083260A1

    公开(公告)日：2016-03-24

    申请号：US14787797

    申请日：2014-04-16

    申请人： HALDOR TOPSØE A/S

    发明人： Per Juul Dahl

    IPC分类号： C01C1/04 ,  C07C29/151 ,  C07C273/10 ,  C01B3/48 ,  C01B3/50

    CPC分类号： C01C1/0488 ,  C01B3/025 ,  C01B3/382 ,  C01B3/48 ,  C01B3/50 ,  C01B3/52 ,  C01B2203/0233 ,  C01B2203/0244 ,  C01B2203/0283 ,  C01B2203/0415 ,  C01B2203/0475 ,  C01B2203/06 ,  C01B2203/061 ,  C01B2203/068 ,  C01B2203/1241 ,  C01B2203/141 ,  C01B2203/145 ,  C07C29/1518 ,  C07C273/04 ,  C07C273/10 ,  F25J3/04539 ,  F25J3/04587 ,  Y02P20/152 ,  Y02P20/52 ,  C07C31/04

    摘要： A process for co-production of ammonia, urea and methanol from natural gas, comprising the steps of (a) producing a synthesis gas by simultaneous feeding natural gas to an autothermal reformer (ATR) and to a steam methane reformer (SMR), the two reformers running in parallel, (b) feeding air to an air separation unit (ASU), where the air is split into oxygen, which is fed to the ATR, and nitrogen, (c) subjecting the synthesis gas from the SMR to a water gas shift, (d) removing the carbon dioxide from the synthesis gas from step (c) and leading it to urea synthesis in a urea synthesis unit, (e) combining the hydrogen-rich gas from step (d) with the nitrogen from step (b), removing catalyst poisons from the gases and leading the gas mixture to ammonia synthesis in an ammonia synthesis unit, (f) optionally removing part of the carbon dioxide from the syngas from the ATR in step (a) and leading it to urea synthesis in a urea synthesis unit and (g) leading the syngas from step (f) to the methanol synthesis unit, wherein synthesis gas from step (a) may be led either from the ATR outlet to the SMR outlet upstream from the shift stage or the other way.

    摘要翻译： 一种从天然气共同生产氨，尿素和甲醇的方法，包括以下步骤：（a）通过同时将天然气同时供给到自热重整器（ATR）和蒸汽甲烷重整器（SMR）来生产合成气， 两台并联运行的改质器，（b）将空气送入空气分离装置（ASU），空气分离成氧气，送入ATR，氮气，（c）使来自SMR的合成气体 （d）从步骤（c）的合成气中除去二氧化碳，并导致尿素合成单元中的尿素合成，（e）将来自步骤（d）的富氢气体与来自 步骤（b）中，从气体中除去催化剂毒物并将氨气合成装置导入氨合成，（f）在步骤（a）中任选地从合成气中除去部分二氧化碳，并将其导入 在尿素合成单元中的尿素合成和（g）将来自步骤（f）的合成气引导到我 其中来自步骤（a）的合成气可以从ATR出口或从换档级上游的SMR出口或其它方式引导。

    Process and Plant for Ammonia-Urea Production
    8.
    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

    申请人： Ermanno Filippi ,  Marco Badano ,  Frederico Zardi ,  Andrea Scotto

    发明人： Ermanno Filippi ,  Marco Badano ,  Frederico Zardi ,  Andrea Scotto

    IPC分类号： C07C273/10

    CPC分类号： C07C273/10 ,  C01C1/0488 ,  Y02P20/52 ,  C07C275/02

    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。