含油污泥的热解处理与利用

文章对油田和炼油含油污泥进行了热解处理室内实验,测定了回收油气组成、热解残渣含碳量和Al2O3含量,开展了热解残渣对沥青的吸附性能和再生处理的絮凝性能测试分析。结果表明,含油污泥热解处理具有较好的油气回收和残渣再生利用价值,可实现污泥“零排放”,具有显著的直接经济效益和社会效益。污泥热解的产油率一般可达10%以上,废白土可达20%～30%,油回收率高;污水处理污泥热解残渣的Al2O3含量可达20%以上,有较高的铝含量,初步再生评价对污水有较好的絮凝作用,可再生循环利用;废白土热解残渣的吸附性能与活性白土相当,可循环使用。

Study on the Pyrolysis and Utilization method of Oily Sludge

Experimental study on pyrolysis of oilfield and refinery oily sludge,survey component of recovey oil and gas, carbon and Al2O3 content of pyrolysis sediment,analysis the absorptivity and flocculability of pyrolysis sediment .These experiments show that :While oily sludge is pyrolysised, obvious economic and social benefit could be achieved, zero discard of oily sludge could be achieved, recovey oil rate of oily sludge could hit 10% and waste attapulgite (white earth) could hit 20-30%;Al2O3 content of waste sludge pyrolysis sediment could hit 20%,the sediment could flocculant waste water effectively,could be revivalrecycled;The absorptivity of waste attapulgite pyrolysis sediment correspond to active attapulgite, the sediment could be recycled.