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    PROCESS FOR AMMONIA PRODUCTION
    2.
    发明申请
    PROCESS FOR AMMONIA PRODUCTION 审中-公开

    公开(公告)号：US20200317534A1

    公开(公告)日：2020-10-08

    申请号：US16305351

    申请日：2017-04-20

    Applicant: CASALE SA

    Inventor： Raffaele OSTUNI ,  Cristina FERRINI ,  Javier GOICOCHEA

    IPC: C01C1/04 ,  B01J8/04

    Abstract: A process for the synthesis of ammonia from a make-up gas containing hydrogen and nitrogen, comprising at least two steps for the synthesis of ammonia, wherein: said reactive steps are performed in series and each of said reactive steps provides an ammonia-containing product gas; the second and any subsequent reactive step receives, as a feed stream, at least a portion of the product gas of the previous reactive step; an intermediate adsorptive step of ammonia is performed between consecutive reactive steps, so that the product gas of each step is depleted of ammonia prior to the subsequent reactive step of said series.

    PROCESS FOR PRODUCING AMMONIA SYNTHESIS GAS
    4.
    发明申请
    PROCESS FOR PRODUCING AMMONIA SYNTHESIS GAS 有权
    生产氨合成气的方法

    公开(公告)号：US20160311680A1

    公开(公告)日：2016-10-27

    申请号：US15104448

    申请日：2014-12-16

    Applicant: CASALE SA

    Inventor： Ermanno FILIPPI ,  Raffaele OSTUNI

    IPC: C01B3/02 ,  B01J19/00 ,  B01J7/02

    CPC classification number: C01B3/025 ,  B01J7/02 ,  B01J19/0046 ,  B01J2219/0059 ,  B01J2219/00756 ,  C01B2203/0233 ,  C01B2203/0244 ,  C01B2203/0283 ,  C01B2203/043 ,  C01B2203/046 ,  C01B2203/048 ,  C01B2203/143

    Abstract: A process and a related equipment for producing ammonia synthesis gas from a hydrocarbon-containing feedstock (20), the process comprising the steps of: primary reforming with steam (21), secondary reforming with an oxidant stream (23), and purification of the effluent of said secondary reforming, said purification comprising a step of shift conversion (13) of carbon monoxide, wherein the synthesis gas (25) produced by said secondary reforming is subject to a medium-temperature shift over a copper-based catalyst, and the global steam to carbon ratio of the process is not greater than 2.

    Abstract translation: 一种用于从含烃原料（20）生产氨合成气的方法和相关设备，该方法包括以下步骤：用蒸汽（21）进行一次重整，用氧化剂流（23）进行二次重整，并纯化 所述二次重整的流出物，所述纯化包括一氧化碳的转移转化（13）的步骤，其中由所述二次转化产生的合成气（25）经受铜基催化剂的中温转变，并且 全球蒸汽碳比过程不大于2。

    PLANT AND PROCESS FOR AMMONIA PRODUCTION WITH CRYOGENIC PURIFICATION, AND RELATED METHOD OF REVAMPING
    10.
    发明申请
    PLANT AND PROCESS FOR AMMONIA PRODUCTION WITH CRYOGENIC PURIFICATION, AND RELATED METHOD OF REVAMPING 审中-公开

    公开(公告)号：US20180266758A1

    公开(公告)日：2018-09-20

    申请号：US15527989

    申请日：2015-11-25

    Applicant: Casale SA

    Inventor： Ermanno Filippi ,  Raffaele OSTUNI

    IPC: F25J3/02 ,  C01C1/04

    Abstract: Process for the synthesis of ammonia from a make-up gas containing hydrogen and nitrogen, said process comprising: generation of a synthesis gas (8) containing hydrogen and nitrogen in a molar ratio lower than 3, inside a front-end section (2); a first cryogenic purification, designed to remove nitrogen and raise said molar ratio; conversion of the synthesis gas into ammonia (13) inside a high-pressure synthesis loop (6), with extraction from said loop of a purge stream (14) containing hydrogen and inert gases; wherein at least a portion of said purge stream (14) undergoes a further purification in order to recover at least part of the hydrogen contained therein, obtaining at least one stream (15, 15a, 16, 18) containing recovered hydrogen which is recycled to the process.

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