采用热解方法回收油泥中原油  

OIL RECOVERY FROM OILY-SLUDGE BY PYROLYSIS METHOD

作　　者：全翠[1] 李爱民[1] 高宁博[1] 郭眈丹[1] 

机构地区：[1]大连理工大学环境学院,辽宁大连116024

出　　处：《石油学报（石油加工）》2010年第5期742-746,共5页Acta Petrolei Sinica(Petroleum Processing Section)

基　　金：中国博士后科学基金项目(20090451264)资助

摘　　要：应用热天平和管式热解炉对油泥的热解行为进行实验研究。考察了不同升温速率对油泥热解的影响和不同热解终温对油泥各热解产物分布的影响,求解了油泥热解的动力学参数,并采用元素分析、FT-IR和1H NMR对油泥热解产物进行了分析。结果表明,随着升温速率的加快,油泥的热失重曲线向高温侧偏移,反应活化能和指前因子也随之增大。油泥最宜热解终温为823 K,此时热解油产率达40.36%。所得热解油的化学组成与柴油相似,可以回收利用。油泥热解残渣为黑色粉体,残油量为0.0662%,达到国家标准对农用土壤油含量的规定(<0.3%)。Pyrolysis characteristics of oily-sludge were studied by thermogravimetric（TG） analyzer and tubular furnace reactor.The effects of heating rates on oily-sludge pyrolysis and the effects of final pyrolysis temperature on the product distribution of oily-sludge pyrolysis were investigated.The kinetic parameters of oily-sludge were calculated with the method of Coats-Redfern.The products of oily-sludge pyrolysis were analyzed by elemental analysis,FT-IR and1H NMR.The results indicated that TG curve of oily-sludge shifted to higher temperature,and its activation energy（E） and pre-exponential factor（A） values were increased with the increase of the heating rates.The optimum final pyrolysis temperature was 823 K,at which the oil yield of oily-sludge pyrolysis reached its maximum value of 40.36%.The recovered oil had the similar chemical composition to diesel oil,which could be reused.The pyrolysis residues of oily-sludge were black powder solid and residual oil content in it was about 0.0662%,meeting the national standard regulation for farm-oriented soil oil content（0.3%）.

关 键 词：油泥 热解 原油回收 

分 类 号：X705[环境科学与工程—环境工程]