丁苯橡胶装置单体回收系统堵挂问题探讨

Study of fouling of monomer recovery system of ESBR plant

介绍了齐鲁引进乳聚丁苯橡胶装置回收单元存在的设备堵挂问题 ,经分析认为歧化松香酸钾中带有含共轭双键的松香酸钾 ,脂肪酸中C1 6 - 1 8组分含量高 ,DEMOL缩合度高于 5的组分高 ,反应转化率高于 72 %是造成堵挂的 4条主要原因 。

The fouling of monomer recovery system of Qilu ESBR plant was studied.It was considered that the fouling was principally caused by the following four reasons;There existed the colopholic potassium containing conjugated doublebonds in the disproportionated colopholic potassium;excessive content of C16 18 compositions existed in the fatty acid;excessive content of compositions for which the DEMOL condensation degree was above 5;the reaction conversion was higher than 72 percent.Effective countermeasures were proposed.