热解含油污泥制备活性炭负载纳米氧化铝  

Preparation of Activated Carbon Supported Nano-alumina by Pyrolysis of Oily Sludge

作　　者：张璇 王振波[1] 王军[1] ZHANG Xuan;WANG Zhen-bo;WANG Jun(School of Chemical Engineering, China University of Petroleum（East China） , Qingdao 266580, Chin)

机构地区：[1]中国石油大学(华东)化学工程学院,山东青岛266580

出　　处：《过滤与分离》2017年第4期15-20,52,共7页Journal of Filtration & Separation

摘　　要：研究以铝渣和含油污泥两种固体工业废料,经过焚烧,酸洗,调p H,干燥,煅烧等工艺手段制备出活性炭负载纳米氧化铝,该种材料是一种多孔径、高比表面积、高吸附性能的复合材料,由于其优良的吸附性能显示出了较为广阔的应用前景,并实现了含油污泥的无害化处理。用单因素实验来确定不同工艺参数对吸附材料吸附性能的影响,并采取XRD、SEM和氮气吸附分析法对复合材料的比表面积,孔径,孔体积等进行了分析。实验表明:制备活性炭负载纳米氧化铝的最佳工艺路线为:含油污泥与铝渣与氢氧化钠的原料比为1:1:2,煅烧时间为120 min,煅烧温度为800℃,并制备出了比表面积为291.804 m^2/g,平均孔径大小为6.098 nm,孔容为0.326 cm^3/g的复合材料样品。The activated carbon supported nano-alumina was prepared from two kinds of solid industrial wastes, aluminum slag and oily sludge, by burning, acid washing, p H adjusting, drying, calcining and other processes. The material is a kind of composite material with multi-pore, high specific surface area and high adsorption properties. Because of its excellent adsorption performance, it shows a wide application prospect, and the purpose of the harmless disposal of oily sludge is realized. The effects of different process parameters on adsorption properties of adsorption materials were determined by single factor experiment; the specific surface area, pore size and pore volume of the composite were analyzed by XRD, SEM and nitrogen adsorption analysis.Experimental results showed that the optimum technological route for the preparation of activated carbon supported nano-alumina as follows： the raw material ratio of oily sludge and aluminum slag and sodium hydroxide was 1：1：2, the calcination time was120 min, the calcination temperature was 800℃. Under these conditions, a composite material sample with the specific surface area of 291.804 m^2/g, the average aperture size of 6.098 nm and the pore volume of 0.326 cm^3/g was prepared.

关 键 词：含油污泥 活性炭 氧化铝 热解 吸附 

分 类 号：TQ028.8[化学工程]