Process optimization of preparation adsorbent material and pyrolysis for oily sludge
热解含油污泥制备吸附剂及热解过程的优化

For efficient resource utilization of oil sludge in oilfield,an adsorbent material was prepared for flue gas desulfurization by oil sludge after pyrolysis,and in this process resources of oil and gas were recycled.Based on benzene adsorptivity,the conditions of pyrolysis process were optimized.Pyrolysis oil and residue were characterized using ICP-MS,element analyzer,TG,SEM and BET.Performance of pyrolysis residue was evaluated via a flue gas desulfurization test after subsequent processing.The results of orthogonal experiment showed that the most important influencing factor was pyrolysis temperature,secondly pyrolysis time and finally heating rate.The maximum benzene adsorbability of adsorbent material was 29.26 mg/g.The optimum pyrolysis conditions of oily sludge in nitrogen atmosphere were 550℃,4 h,10℃/min for the pyrolysis temperature,pyrolysis time and heating rate,respectively.Adsorbent materials have a high meso-and micropore volume,as a result of which were illustrated by SEM.Pyrolysis residue could be appropriate for preparation of adsorbent material.