会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 3. 发明申请
    • CONTINUOUS GAS FLUIDIZED BED POLYMERIZATION PROCESS
    • US20180056263A1
    • 2018-03-01
    • US15560238
    • 2016-03-24
    • SABIC Global Technologies B.V.
    • Mohammed AlthukairAbdulrahman Ashri
    • B01J8/00B01J8/18C08F10/02
    • B01J8/0015B01J8/1827B01J8/1836B01J8/20B01J19/18B01J2208/00274B01J2208/003B01J2219/00006C08F2/01C08F2/34C08F10/02C08F10/00C08F210/16C08F210/08C08F2500/12
    • The invention relates to a process for the preparation of a polyolefin in a reaction system from one or more α-olefin monomers of which at least one is ethylene or propylene, 5 wherein the reaction system comprises a reactor, a product purge bin, a granular feed bin, wherein the granular feed bin is located downstream of the product purge bin, a recovery unit and an extrusion unit directly coupled to the granular fed bin, wherein the reactor comprises a fluidized bed, an expanded section located at or near the top of the reactor, a distribution plate located at the lower part of the reactor and an 10 inlet for a recycle stream located under the distribution plate, wherein the process comprises a) feeding a polymerization catalyst to the fluidized bed in the area above the distribution plate, b) feeding the one or more α-olefin monomers to the reactor, 15 c) circulating fluids from the top of the reactor to the bottom of the reactor, wherein the circulating fluids are cooled using a heat exchanger, resulting in a cooled recycle stream comprising liquid, and wherein the cooled recycle stream is introduced into the reactor using the inlet for the recycle stream, d) withdrawing a stream comprising the polyolefin and fluids from the reactor and 20 passing said stream into the product purge bin, e) purging the product purge bin with a purge stream comprising a first inert gas, preferably nitrogen and steam such that a stream comprising a purged polyolefin and a stream comprising fluids, wherein the stream comprising the fluids is substantially free of steam, is obtained, 25 f) introducing at least part of the stream comprising the fluids back into the reactor via the recovery unit, g) introducing the stream comprising the purged polyolefin into the granular feed bin and h) contacting a deactivating stream comprising steam with the purged polyolefin in the 30 granular feed bin to obtain a polyolefin that is substantially free of active polymerization catalyst.
    • 9. 发明授权
    • Process for the preparation of methanol in parallel reactors
    • 在并联反应器中制备甲醇的方法
    • US09464014B2
    • 2016-10-11
    • US14892124
    • 2014-05-15
    • Haldor Topsøe A/S
    • Hassan ModarresiChristian Wix
    • C07C27/00C07C29/152B01J8/04B01J8/02B01J19/18
    • C07C29/152B01J8/0292B01J8/0453B01J19/1856B01J2208/00274B01J2208/027C07C31/04
    • In a process for the preparation of methanolin parallel reactors, comprising the steps of (a) reacting carbon oxides and hydrogen in the presence of a methanol catalyst in a first methanol reactor to obtain a first methanol-containing effluent, (b) introducing and reacting unconverted synthesis gas in a second methanol reactor in the presence of a methanol catalyst to obtain a second methanol-containing effluent, the first methanol reactor and the second methanol reactor being connected in parallel, (c) combining the first and second effluent, and (d) cooling and separating the combined and cooled effluent into a methanol-containing liquid phase and unconverted synthesis gas, the methanol catalyst in the first methanol reactor is indirectly cooled by boiling water and the methanol catalyst in the second methanol reactor is either directly or indirectly cooled by the unconverted synthesis gas prior to conversion into the second effluent.
    • 在制备甲醇并行反应器的方法中,包括以下步骤:(a)在甲醇催化剂存在下,在第一甲醇反应器中使碳氧化物和氢气反应,得到第一含甲醇的流出物,(b)引入和反应 未转化的合成气在第二甲醇反应器中在甲醇催化剂存在下得到第二含甲醇的流出物,第一甲醇反应器和第二甲醇反应器并联连接,(c)将第一和第二流出物与( d)冷却并将合并后的流出物分离成含甲醇的液相和未转化的合成气,第一甲醇反应器中的甲醇催化剂由沸水间接冷却,第二甲醇反应器中的甲醇催化剂直接或间接地 在转化成第二流出物之前由未转化的合成气冷却。