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聚丙烯装置汽蒸单元运行问题分析及对策 被引量:4
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作者 张聪玲 高晓斌 郭峰 《石化技术与应用》 CAS 2011年第5期446-449,共4页
分析了聚丙烯装置汽蒸单元产生汽蒸罐结块频繁、汽蒸罐洗剂塔隔离池固体粉料多及工艺水过滤器频繁堵塞等问题的原因,通过优化调整工艺参数,如减少汽蒸蒸汽流量、将汽蒸罐料位控制值由50%降至35%、将汽蒸罐温度设定为105℃等,并采取将工... 分析了聚丙烯装置汽蒸单元产生汽蒸罐结块频繁、汽蒸罐洗剂塔隔离池固体粉料多及工艺水过滤器频繁堵塞等问题的原因,通过优化调整工艺参数,如减少汽蒸蒸汽流量、将汽蒸罐料位控制值由50%降至35%、将汽蒸罐温度设定为105℃等,并采取将工艺水过滤器改为双层金属网式过滤器、汽蒸罐洗涤塔液位计改为浮筒式液位计等措施,使汽蒸单元运行平稳,各项控制指标均达设计要求。 展开更多
关键词 聚丙烯 汽蒸单元 蒸汽 旋风分离器 工艺水过滤器 汽蒸
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Case Studies of Heat Integration of Evaporation Systems
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作者 冯霄 RobinSmith 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2001年第2期224-227,共4页
In this paper, through two case studies, evaporation systems are considered in the context of overall process, and then are optimized to obtain energy-saving effect. The possible evaporation schemes are given when int... In this paper, through two case studies, evaporation systems are considered in the context of overall process, and then are optimized to obtain energy-saving effect. The possible evaporation schemes are given when integrated with the background process and how to optimize the evaporator is shown. From the case studies, it can be seen that sometimes incomplete integration and heat pump evaporation are better than complete integration so should be considered as candidate retrofit schemes. 展开更多
关键词 EVAPORATION heat integration grand composite curve multi-effect evaporation vapour recompression evaporator
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