학술논문
PP等规指数的优化控制 / Optimal control of isotacticity in polypropylene production
Document Type
Academic Journal
Author
Source
合成树脂及塑料 / China Synthetic Resin and Plastics. (1):44-49
Subject
Language
Chinese
ISSN
1002-1396
Abstract
分析了外给电子体加入量、催化剂种类对聚丙烯（PP）等规指数的影响。结果表明：外给电子体加入量与等规指数成正比；不同类型催化剂对PP等规指数可调范围、可调敏感性的影响不同；在间歇釜式PP装置和连续双环管PP装置的运行中，工艺路线不同，等规指数的控制范围不同。在200kt/a连续双环管PP装置上生产PPT30S时，主催化剂为CS-Ⅱ型催化剂，外给电子体用量为0.010～0.017kg/t，PP等规指数可控制在95.0%～98.0%，从开工至今连续运行208天，打破了国内PP装置最长连续运行188天的记录。
The?authors?analyzed?the?effects?of?the?external?electron?donor?amount?and?the?catalyst?type?on?the?isotactic?index?of?polypropylene?(PP).?The?results?show?that?the?amount?of?the?external?electron?donor?is?proportional?to?the?isotactic?index?of?PP.?Different?types?of?catalysts?have?different?influences?on?the?adjustable?range?and?the?adjustable?sensitivity?of?the?isotactic?index?of?PP.?The?control?range?of?the?isotactic?index?is?various?with?process?routes?in?the?intermittent?PP?reactor?and?the?continuous?double-loop?PP?reactor.?For?producing?grade?T30S?in?the?200?kt/a?continuous?double-loop?PP?reactor,the?isotactic?index?of?PP?can?be?controlled?in?the?range?of?95.0%-98.0%?when?the?main?catalyst?is?catalyst?CS-Ⅱand?the?amount?of?the?external?electron?donor?is?0.010-0.017?kg/t.?The?PP?plant?has?continuously?run?for?208?days,breaking?the?longest?record?of?continuous?operation?for?188?days?in?the?national?PP?plant.
The?authors?analyzed?the?effects?of?the?external?electron?donor?amount?and?the?catalyst?type?on?the?isotactic?index?of?polypropylene?(PP).?The?results?show?that?the?amount?of?the?external?electron?donor?is?proportional?to?the?isotactic?index?of?PP.?Different?types?of?catalysts?have?different?influences?on?the?adjustable?range?and?the?adjustable?sensitivity?of?the?isotactic?index?of?PP.?The?control?range?of?the?isotactic?index?is?various?with?process?routes?in?the?intermittent?PP?reactor?and?the?continuous?double-loop?PP?reactor.?For?producing?grade?T30S?in?the?200?kt/a?continuous?double-loop?PP?reactor,the?isotactic?index?of?PP?can?be?controlled?in?the?range?of?95.0%-98.0%?when?the?main?catalyst?is?catalyst?CS-Ⅱand?the?amount?of?the?external?electron?donor?is?0.010-0.017?kg/t.?The?PP?plant?has?continuously?run?for?208?days,breaking?the?longest?record?of?continuous?operation?for?188?days?in?the?national?PP?plant.