为了解决甲醇制烯烃装置含油水处理难题,开发了甲醇制烯烃含油水综合处理技术。该技术针对装置各股含油水的特性分别处理,采用固定床过滤技术和序列式除油技术,建立了200 t/h急冷水除固单元和50 t/h含油水除油单元。该技术应用后将急冷水悬浮物脱除至50 mg/L以内,减少急冷水外排量91.5%;含油水处理后石油类降至2~5 mg/L,可作为气化磨煤用水,提高了甲醇制烯烃的综合用水能力,节能减排。

In order to solve the problem that oily wastewater in methanol to olefin unit is difficult to treat,China Energy Baotou Coal Chemical Co.,Ltd.and Shanghai Lanke Environmental Technology Co.,Ltd.jointly develops a comprehensive treatment technology for oily wastewater in methanol to olefin plant.According to the characteristics of oily wastewater in each stream of the plant,the technology adopts fixed bed filtration technology and sequential oil removal technology to establish a 200 t·h^-1 solids removal unit for quench water and a 50 t·h^-1 oil-removal unit for oily wastewater.After the application of this technology,the suspended solids in the quench water is less than 50 mg·L^-1,and the external discharge of the quench water is reduced by 91.5%;and the oil content in oily water drops to 2-5 mg·L^-1,which can be used in gasification and coal milling to improve the comprehensive water use efficiency of methanol to olefin plant,save energy and reduce emission.

闫庆亮(1984-),男,硕士,高级工程师,研究方向为煤制烯烃工程与工艺;黄令漫(1987-),男,硕士,高级工程师,研究方向为煤制烯烃工程与工艺,通讯联系人,380853578@qq.com。