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发明公开
CN106946367A 一种用于解决煤制乙二醇精馏塔塔底废液聚合、结晶的预处理剂 无效 - 撤回

一种用于解决煤制乙二醇精馏塔塔底废液聚合、结晶的预处理剂
摘要：
本发明公开了一种用于解决煤制乙二醇精馏塔塔底废液聚合、结晶的预处理剂。所述预处理剂是由十二烷基苯磺酸、十二烷基磺酸、羟基乙叉二磷酸、乙二醇制备而成，其重量比为0‑2∶0 ‑2∶0‑2∶1‑2。本发明的预处理剂按重量比为0.1‑1.8%的比例加入废液中使其充分混合，可以得到稳定的煤制乙二醇废液用于下一步的分离回收，避免了煤制乙二醇废液在分离回收的过程中的管道、泵以及精馏塔的聚合堵塞。使回收系统能够连续稳定运行。
摘要（英）：

The invention discloses a pretreating agent for treating polymerization and crystallization of a tower bottom liquid waste of a CTEG rectifying tower. The pretreating agent is prepared from dodecylbenzene sulfonic acid, dodecyl sulfonate, hydroxyethyl diphosphate and ethylene glycol at the mass ratio of (0-2) to (0-2) to (0-2) to (1-2). The pretreating agent is added to the liquid waste at the mass ratio of 0.1-1.8% to be fully mixed, and a stable CTEG liquid waste can be obtained for separation and recovery in the next step, so that polymerization blockage of a pipeline, a pump and the rectifying tower in the separation and recovery processes of the CTEG liquid waste is avoided, and the recovery system can continuously and stable run.

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