炼厂含油污泥低温热解研究  

Low temperature pyrolysis of refinery oily sludge

作　　者：叶政钦[1] 李金灵[2] 李彦[2] 

机构地区：[1]延长油田股份有限公司,陕西延安716000 [2]西安石油大学化学化工学院,陕西西安710065

出　　处：《石油化工应用》2016年第3期123-126,130,共5页Petrochemical Industry Application

基　　金：陕西省教育厅重点实验室科研计划项目;项目编号:14JS086;15JS089;西安市科技计划项目;项目编号:CXY1515(3)

摘　　要：延长油田某炼厂含油污泥的含水率为19.63%,含油率为28.85%,外观呈油黑色,具有较大的回收利用价值。以热解油回收率为考核指标,通过单因素实验和正交实验对某炼厂含油污泥热解参数进行了优化,研究了热解终温、停留时间、氮气流速、升温速率以及加热方式对热解油回收率的影响规律,并初步分析了热解终温对热解油凝点的影响。结果表明,热解时间对热解油回收率影响最大,氮气流速无明显影响。最佳热解条件为:污泥初温时加入热解炉,热解终温440℃、停留时间4 h、氮气流速80 m L·min^(-1)、升温速率10℃·min^(-1),此时的热解油回收率最大,达到73.56%。另外,在热解终温400℃~450℃范围内,随着温度的升高,热解油的凝固点逐渐降低。The oily sludge from a certain refinery of Yanchang oil field with water content19.63 %,oil content 28.85 %,has a large recycling value.Through single-factor test and orthogonal experimental,the effect of pyrolysis temperature,reaction time, nitrogen flow rate,temperature raising rate and heating way on the oil recovery rate was investigated during the pyrolysis of refinery oily sludge,and the influence of temperature on the pyrolysis oil condensation point was also discussed.The results show that the reaction time has the most impact on the oil recovery rate,whereas,nitrogen flow rate has little impact.The optimum pyrolysis parameters were pyrolysis temperature 440 ℃,reaction time 4h,nitrogen flow rate 80 m L·min^（-1） and temperature raising rate 10 ℃·min^（-1）.In addition,with the increase of temperature,the pyrolysis oil condensation point was reduced.

关 键 词：含油污泥 低温热解 热解油回收率 

分 类 号：X742[环境科学与工程—环境工程]