污泥的热解提油-半焦燃烧工艺的实验研究  

Experimental Research on the Technology of Sludge Bio-Oil Extraction Coupled Semi-Coke Combustion

作　　者：赵科[1] 吕清刚[1] 谭力[1] 那永洁[1] 刘琦[1] 

机构地区：[1]中国科学院工程热物理研究所,北京100190

出　　处：《工程热物理学报》2011年第4期687-690,共4页Journal of Engineering Thermophysics

基　　金：国家自然科学基金项目(No.50906084);中国博士后科学基金(No.20090450578);中国科学院知识创新工程重要方向项目(No.KGCX2-YX-399+3)

摘　　要：本文提出了双流化床中污泥的热解提油-半焦燃烧工艺,组织实验论证并进行了探索研究。结果表明,双流化床中可以实现污泥热解提油工艺和半焦燃烧工艺的耦合,即获得了污泥热解产生的油和气,又实现了污泥的焚烧无害化处理。污泥在双流化床中发生热解反应时,干燥无灰基污泥的油产率为24.1%,是煤的2.4倍,干燥无灰基污泥的轻油产率为8.44%,是煤的9倍。该工艺中,污泥中热量的43.1%转化为油,10.4%转化为热值10.54MJ/m^3的气体燃料,46.5%的热量残留在污泥半焦中,在燃烧炉内燃烧放热。The technology of sludge bio-oil extraction coupled semi-coke combustion in dual fluidized beds（DFB） was researched in an experimental rig.The results showed that the process,which coupled the pyrolysis technology for bio-oil extraction and semi-coke combustion technology for harmless disposal,could be achieved on the DFB rig.Bio-oil and gas were achieved in the pyrolysis of sludge.The semi-coke was harmlessly disposed by combustion.During the pyrolysis in the DFB rig, the yield of bio-oil was 24.1%at dry ash-free basis,which was 2.4 times for coal.The yield of light bio-oil was 8.44%,with 9 times for coal.Concerning the energy conversion,43.1%of sludge heat was converted into bio-oil and 10.4%into gas within the heat value of 10.54 MJ/m^3.The 46.5%of the heat left in the semi-coke and combusted in the furnace.

关 键 词：双流化床 污泥 热解 油 燃烧 

分 类 号：TQ530[化学工程—煤化学工程]