管输原油流动改性剂评价方法改善

Improvement of Pipe Oil Flowing Improver Evaluation Method

徐英彪冷传基唐永安祁雨桦 张志振 何留 刘红霞

XU Ying-Biao LENG Chuan-Ji TANG Yong-An QI Yu-Hua ZHANG Zhi-Zhen HE Liu LIU Hong-Xia

分析了管输原油流动改性剂对原油含水率上升、外排水化学需氧量增加、炼化设备腐蚀的影响。针对下游炼化企业对管输原油流动改性剂的质量要求，在评价管输原油流动改性剂时，需新增脱水性、可生化性和有机氯含量三个评价指标。给出详细室内实验方法。用该方法评价乙烯-乙酸乙烯酯共聚物、烷基酚聚氧乙烯醚、聚氧乙烯聚氧丙烯共聚物三种原油流动改性剂，其脱水比分别为89%、75%、96%，外排水的五日生化需氧量和化学需氧量比值分别为0.33、0.48、0.89，有机氯含量分别为0.95%、0.23%、0.02%。聚氧乙烯聚氧丙烯共聚物流动改性剂对原油脱水、外排水可生化性能、有机氯含量的负面影响较小，满足炼油生产的要求。

The effect of pipe oil flowing improver on raising water content ratio, increasing discharged water chemical oxygen demand and etching installation of petroleum refinery was analyzed. Based on the requirement of pipe oil flowing improver in refinery, it was necessary to add electric dehydration, chemical oxygen demand and organochlorine content in evaluation method. This paper introduced the detailed experiment procedures. 3 pipe oil flowing improvers including ethylene-vinyl acetate copolymer, alkylphenol ethoxylates and polyoxyethylene polyoxypropylene copolymer were evaluated by this method. Their electric dehydration rate was 89%,75% and 96%, the ratio of biochemical oxygen demand after five days and chemical oxygen demand in discharged water was 0.33, 0.45 and 0.89, and organochlorine content was 0.95%、0.23% and 0.02%. Polyoxyethylene polyoxypropylene copolymer had little affection on oil electric dehydration, chemical oxygen demand and organochlorine content, which met the quality requirement of petroleum refinery.