METHOD FOR THE OXIDATIVE DEHYDRATION OF N-BUTENES INTO 1,3-BUTADIEN

    公开(公告)号:US20160122264A1

    公开(公告)日:2016-05-05

    申请号:US14898849

    申请日:2014-06-16

    申请人: BASF SE

    IPC分类号: C07C5/48 B01J8/06

    摘要: The invention relates to a method for producing 1,3 butadien by means of the oxidative dehydration of n-butenes on a heterogenous particulate multimetal oxide catalyst which contains molybdenum as the active compound and at least one other metal and which is filled into the contact tubes (KR) of two or more tube bundle reactors (R-I, R-II), wherein a heat transfer medium flows around the intermediate space between the contact tubes (KR) of the two or more tube bundle reactors (R-I, R-II). The method includes a production mode and a regeneration mode which are carried out in an alternating manner. In the production mode, an n-butene-containing feed flow is mixed with an oxygen-containing gas flow and conducted as a supply flow (1) over the heterogenous particulate multimetal oxide catalyst filled into the contact tubes (KR) of the two or more tube bundle reactors (R-I, R-II), and the heat transfer medium absorbs the released reaction heat, minus the heat quantity used to heat the supply flow (1) to the reaction temperature in the production mode, by means of an indirect heat exchange and completely or partly dispenses the reaction heat onto a secondary heat transfer medium (H2Oliq) in an external cooler (SBK). In the regeneration mode, the heterogenous particulate multimetal oxide catalyst is regenerated by conducting an oxygen-containing gas mixture (3) over the catalyst and burning off the deposits accumulated on the heterogenous particulate multimetal oxide catalyst. The invention is characterized in that the two or more tube bundle reactors (R-I, R-II) have a single heat transfer medium circuit and as many of the two or more tube bundle reactors (R-I, R-II) as necessary are operated constantly in the production mode so that the released reaction heat, minus the heat quantity used to heat the supply flow (1) to the reaction temperature in the production mode, suffices to keep the temperature of the heat transfer medium in the intermediate spaces between the content tubes (KR) of all the tube bundle reactors (R-I, R-II) at a constant level with a variation range of maximally +/−10 DEG C.

    Reacting apparatus, method of assembling reacting apparatus and reactor containing package
    3.
    发明授权
    Reacting apparatus, method of assembling reacting apparatus and reactor containing package 失效
    反应装置,组装反应装置的方法和反应堆包装

    公开(公告)号:US08282884B2

    公开(公告)日:2012-10-09

    申请号:US12280963

    申请日:2007-02-27

    IPC分类号: B01J10/00 A47J39/00

    摘要: A reacting apparatus includes a reactor having a supply port and a discharge port, a first member connected to the surface of the reactor having a through hole associated with the supply port, and a second member connected to the surface of the reactor and having a through hole associated with the discharge port, a supply pipe connected to the supply port by way of the through hole of the first member, to supply a fluid before the reaction to the supply port, and a discharge pipe connected to the discharge port by way of the through hole of the second member, to discharge a fluid after the reaction from the discharge port. The supply port and discharge port include a portion covered by a surface of the first member and a portion communicating with the through hole of the first member. The discharge port includes a portion covered by a surface of the second member and a portion communicating with the through hole of the second member. A first opening of the through hole of the first member includes a portion covered by the surface of the reactor and a portion communicating with the supply port. A second opening of the through hole of the second member includes a portion covered by the surface of the reactor and a portion communicating with the discharge port.

    摘要翻译: 反应装置包括具有供给口和排出口的反应器,与反应器的表面连接的第一部件,具有与供给口对应的通孔,第二部件与反应器的表面连接, 与排出口相关联的孔,通过第一构件的通孔连接到供给口的供给管,以在供应口的反应之前供给流体,以及通过与排出口连接的排出管, 所述第二构件的通孔从所述排出口排出反应后的流体。 供给口和排出口包括由第一构件的表面覆盖的部分和与第一构件的通孔连通的部分。 排出口包括由第二构件的表面覆盖的部分和与第二构件的通孔连通的部分。 第一构件的通孔的第一开口包括被反应器的表面覆盖的部分和与供给口连通的部分。 第二构件的通孔的第二开口包括由反应器的表面覆盖的部分和与排出口连通的部分。