利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

3 条记录 (耗时 0.013 秒)

    APPARATUS AND PROCESS FOR THE PRODUCTION OF FORMALDEHYDE
    1.
    发明公开
    APPARATUS AND PROCESS FOR THE PRODUCTION OF FORMALDEHYDE 审中-公开

    公开(公告)号：EP3374074A1

    公开(公告)日：2018-09-19

    申请号：EP16797609.1

    申请日：2016-11-10

    申请人： Johnson Matthey Public Limited Company

    发明人： HOLMBERG, Johan Björn Mattias ,  MAGNUSSON, Andreas Erik Johan

    IPC分类号： B01J8/06 ,  C07C47/04 ,  B01J8/04

    CPC分类号： B01J8/067 ,  B01J8/0496 ,  B01J2208/00212 ,  C07C45/002 ,  C07C47/04

    摘要： An apparatus for the production of formaldehyde is disclosed. The apparatus comprises a cooled tubular reactor section (8, 108, 208, 308, 408, 508) having a first inlet, a first outlet and a plurality of tubes each having a first end in fluid communication with the first inlet and a second end in fluid communication with the first outlet. The plurality of tubes contain a first catalyst for the production of formaldehyde by oxidative dehydrogenation. The apparatus is characterised in that the apparatus further comprises a pre-reactor section (7, 107, 207, 307, 407, 507). The pre-reactor section (7, 107, 207, 307, 407, 507) has an inlet. The pre-reactor section (7, 107, 207, 307, 407, 507) has an outlet in fluid communication with the first inlet of the cooled tubular reactor section (8, 108, 208, 308, 408, 508). The pre-reactor section (7, 107, 207, 307, 407, 507) is configured to contain, in use, an adiabatic catalyst bed. The adiabatic catalyst bed comprises a second catalyst for the production of formaldehyde by catalytic oxidative dehydrogenation.

    INTEGRATED PROCESS FOR THE PRODUCTION OF FORMALDEHYDE-STABILISED UREA
    2.
    发明公开
    INTEGRATED PROCESS FOR THE PRODUCTION OF FORMALDEHYDE-STABILISED UREA 审中-公开

    公开(公告)号：EP3390353A1

    公开(公告)日：2018-10-24

    申请号：EP16804890.8

    申请日：2016-11-28

    申请人： Johnson Matthey Public Limited Company

    发明人： ERLANDSSON, Ola ,  MAGNUSSON, Andreas Erik Johan ,  MCFARLANE, Kate ,  PACH, John David ,  SHELDON, Daniel Thomas ,  WARD, Darren

    IPC分类号： C07C273/04 ,  C07C273/14

    摘要： A process for producing formaldehyde-stabilised urea is described comprising generating a synthesis gas, subjecting the synthesis gas to water-gas shift to form a shifted gas; recovering carbon dioxide from the shifted gas; synthesising methanol from the carbon dioxide-depleted synthesis gas; subjecting recovered methanol to oxidation; subjecting the methanol synthesis off-gas to methanation; synthesising ammonia from the ammonia synthesis gas and recovering the ammonia; reacting ammonia and recovered carbon dioxide stream to form a urea stream; and stabilising the urea by mixing the urea stream and a stabiliser prepared using the recovered formaldehyde, wherein a portion of the synthesis gas by-passes either the one or more of the water-gas shift reactors, carbon dioxide removal unit, or water-gas shift reactors and the carbon dioxide removal unit used in the process.