摘要
油田含油污水过滤一般采用价格低廉的核桃壳作为滤料,核桃壳滤料使用过程中空隙会被原油堵塞导致慢慢失效,需要通过化学清洗的方式将核桃壳表层及内部附着物清洗干净,恢复初始孔隙过滤状态继续使用。将PO嵌段脂肪酸甲酯乙氧基化物(FMEE)、磺酸盐(FMES)、螯合剂乙二胺二邻苯基乙酸钠(EDDHA-Na)、乳化剂辛基酚聚氧乙烯醚(OP-8)、工业乙醇作为核桃壳清洗剂的表面活性剂组分,并通过正交实验确定了五种原料最佳的比例为FMEE 8%、FMES 4%、OP-86%、EDDHA-Na 1%、工业乙醇16%、水65%,该比例复配制得核桃壳清洗剂用于污水站的过滤器清洗,用量为2.5%,清洗用水为常温水,清洗后的过滤器进出口流速明显提升,延长了核桃壳更换周期。
The cheap walnut shell is generally used as filter material for oily sewage filtration,walnut shell filter material will be stained in the process of filtration,which will be ineffective slowly,so it is necessary to clean the walnut shell through chemical cleaning,in order to restore the initial filtration state.The walnut shell cleaning agent was prepared with PO block fatty acid methyl ester ethoxide(FMEE),sulfonate(FMES),chelating agent ethylenediamine dio-phenylacetic acid sodium(EDDHA-Na),emulsifier octylphenol polyoxyethylene ether(OP-8),ethanol the surfactant components.The best proportion of these five raw materials are FMEE 8%,FMES 4%,OP-86%,EDDHA-Na 1%,industrial ethanol 16%,water65%through the orthogonal test determined.The dosage of this walnut shell cleaning agent for sewage station filter cleaning is 2.5%,cleaning water is room temperature water,the filter inlet and outlet flow rate increased significantly after cleaning,the replacement cycle of walnut shell prolonged.
作者
郑辉
ZHENG Hui(Shanghai Xihe Fine Chemical Co.,Ltd.,Shanghai 201620,China)
出处
《石油化工应用》
CAS
2022年第12期105-108,共4页
Petrochemical Industry Application
关键词
含油污水
过滤
核桃壳
化学清洗
oil waste water
filtration
walnut shell
chemical cleaning
