CO_(2)溶解与负压析出法对油泥资源化处理研究  

Study on Oil Sludge Resource Treatment by CO_(2) Dissolution and Negative Pressure Precipitation Method

作　　者：周金铎 何昭卫 苟湘[1] Zhou Jinduo;He Zhaowei;Gou Xiang(School of Energy and Environmental Engineering,Hebei University of Technology,Tianjin,300401)

机构地区：[1]河北工业大学能源与环境工程学院,天津300401

出　　处：《当代化工研究》2024年第16期182-184,共3页Modern Chemical Research

摘　　要：油泥是石油开采、加工、储存和运输过程中产生的副产品,会造成能源的浪费和严重的环境污染。开展了采用CO_(2)溶解与负压析出法对油泥高附加值资源化处理研究,通过CO_(2)气泡的膨胀作用将固相表面的油分进行剥离。分析对比在不同工况下油分的回收率,结果表明:采用CO_(2)溶解与负压析出相结合法可回收78.87%的油分;最佳的温度、排气压力、油泥和水质量比、搅拌转速和处理时间工况分别为70℃、20 kPa、1:7、700 r/min和30 min。Oil-containing sludge is a by-product of oil extraction,processing,storage and transportation,which can cause energy waste and serious environmental pollution.The study of high value-added resource treatment of oil sludge by CO_(2) dissolution and negative pressure precipitation was carried out,in which the oil on the surface of the solid phase was stripped off by the expansion of CO_(2) bubbles.The results show that the combination of water-enhanced CO_(2) dissolution and negative-pressure precipitation can recover 73.5%of the oil,which is better than the traditional water washing method;The optimal temperature,exhaust pressure,sludge and water mass ratio,stirring speed,and processing time are 70℃,20 kPa,1:7,700 r/min,and 30 min,respectively.

关 键 词：油泥 二氧化碳 油回收 

分 类 号：X74[环境科学与工程—环境工程]