裂解碳五聚合原因分析及防范措施  

Cause Analysis and Preventive Measures of Cracking C5 Polymerization

作　　者：王雨雨 Wang Yuyu(SINOPEC Yangzi Petrochemical Co.,Ltd.,Jiangsu,Nanjing,210000)

机构地区：[1]中国石化扬子石油化工有限公司,江苏南京210000

出　　处：《安全、健康和环境》2025年第3期36-42,共7页Safety Health & Environment

摘　　要：某企业液态烃罐区储存的裂解碳五中的二烯烃含量达到61.17%,全年裂解碳五平均来料温度达到30℃,储罐内壁、小接管等部位聚合物堆积严重,给液态烃罐区的生产运行带来巨大安全隐患。为优化裂解碳五储存工艺条件,研究了储存时间、储存温度、铁锈含量、氧含量对裂解碳五聚合物生成量的影响,提出了裂解碳五防聚合措施。结果表明:储存时间越长或储存温度越高,裂解碳五聚合物生成量越多,储存时间不宜长于7天、储存温度不应高于30℃,可采取开启储罐降温喷淋和储罐刷隔热漆等措施降低储存温度;储罐中存在的铁锈和氧含量会促进碳五聚合物的生成,通过增设氮封系统,避免裂解碳五与氧气接触,减少聚合物的生成。研究成果对裂解碳五储存工艺参数优化和日常生产管理具有重要指导意义。The content of cracked carbon pentadiene stored in the liquid hydrocarbon tank area of an enterprise reached 61.17%,the average incoming temperature of cracked C5 reached 30℃throughout the year,and the polymer accumulation in the inner wall of the storage tank and small joints was serious,which brought huge security risks to the production and operation of the liquid hydrocarbon tank area.The effects of storage time,storage temperature,rust content and oxygen content on the yield of cracked C5 polymer were studied in order to optimize the storage conditions,and the anti-polymerization measures were put forward.The results showed that the longer the storage time or the higher the storage temperature,the more the pyrolysis C5 polymer will be produced.The storage time should not be longer than 7 days,and the storage temperature should not be higher than 30℃.The storage temperature can be reduced by opening the storage tank cooling spray and brushing the heat insulation paint.The presence of rust and oxygen content in the tank will promote the formation of C5 polymers,and the addition of a nitrogen sealing system will avoid the contact of cracked C5 with oxygen and reduce the formation of polymers.The research results had important guiding significance for the process parameter optimization and daily production management of cracked C5 storage.

关 键 词：裂解碳五 聚合原因 防聚合 储存条件 原因分析 

分 类 号：X937[环境科学与工程—安全科学]