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
    • 4. 发明申请
    • PROCESS FOR WITHDRAWING POLYOLEFINS
    • 撤消聚烯烃的方法
    • WO2017108909A1
    • 2017-06-29
    • PCT/EP2016/082113
    • 2016-12-21
    • BOREALIS AG
    • AL-HAJ ALI, MohammadERIKSSON, ErikVIJAY, SameerMATHIVANAN, GuhanRÄSÄNEN, JukkaSLEIJSTER, HenryWURNITSCH, ChristofZITTING, Samuli
    • C08F6/00C08F6/12
    • C08F6/003C08F6/12C08L23/02
    • A process for withdrawing polyolefins from a solution polymerization reactor comprising: providing - a low pressure separator 1, - a washing column 2, - a withdrawal line 3 connecting the upper part of the low pressure separator and the washing column - a condenser 4, - a condenser-line 5 connecting the top part of the washing column and the condenser - optionally a recycle solvent vessel 6 - optionally a solvent-vessel-line 7 connecting the condenser with the recycle solvent vessel - a reflux line 8 connecting the condenser and the upper part of the washing column or connecting the recycle solvent vessel and the upper part of the washing column - optionally a circulation line 9 fluidly connected to the middle part of the washing column and recycling line 10 - a recycling line 10 connecting the bottom of the washing column and the upper part of the low pressure separator, - optionally a wash recycle heater 11 embedded into the recycling line 10 - optionally a heater 12 embedded into the circulation line 9 (a) continuously withdrawing a liquid solution stream from the solution polymerization reactor and passing said liquid solution stream into the first low pressure separator 1; (b) withdrawing a first vapour stream and a first liquid stream from the low pressure separator and passing said first vapour stream via withdrawal line 3 into the washing column (c) withdrawing a second vapour stream from the washing column and feeding it via condenser line 5 to condenser 4 (d) cooling the second vapour stream in condenser 4 so that a part of the second vapour stream condenses thereby producing a condensed second vapour stream and an uncondensed second vapour stream (e) passing the condensed second vapour stream to the upper part of the washing column via reflux line 8 (f) withdrawing a second liquid stream from the washing column and passing at least a part of the second liquid stream to the low pressure separator via recycling line 10 (g) recovering heat from the condenser
    • 一种从溶液聚合反应器中取出聚烯烃的方法,其包括:提供 - 低压分离器1, - 洗涤塔2, - 连接低压分离器的上部部分和 洗涤塔 - 冷凝器4 - 连接洗涤塔顶部和冷凝器的冷凝器管线5 - 任选的循环溶剂容器6 - 任选的连接冷凝器和循环溶剂容器的溶剂容器管线7 - 连接冷凝器和洗涤塔上部的回流管线8或连接再循环溶剂容器和洗涤塔上部的循环管线8 - 任选地循环管线9,其流体连接到洗涤塔的中间部分和循环管线10-a - 连接洗涤塔底部和低压分离器上部的再循环管线10, - 任选的嵌入再循环管线10中的洗涤再循环加热器11, - 可选地加热器12 em (a)连续地从溶液聚合反应器中排出液体溶液流并将所述液体溶液流输送到第一低压分离器1中; (b)从低压分离器中取出第一蒸气流和第一液体流,并将所述第一蒸气流经排出管线3送入洗涤塔(c)从洗涤塔中排出第二蒸气流,并通过冷凝器管线 (d)冷却冷凝器4中的第二蒸气流,使得第二蒸气流的一部分冷凝,由此产生冷凝的第二蒸气流和未冷凝的第二蒸气流(e)将冷凝的第二蒸气流传送至上部 (f)从洗涤塔抽出第二液体物流,并将至少一部分第二液体物流通过循环管线10输送到低压分离器(g),从冷凝器的部分回收热量 / p>