Clean bio-oil production from fast pyrolysis of sewage sludge: Effects of reaction conditions and metal oxide catalysts

被引:155
作者
Park, Hyun Ju [1 ]
Heo, Hyeon Su [1 ]
Park, Young-Kwon [1 ]
Yim, Jin-Heong [2 ]
Jeon, Jong-Ki [3 ]
Park, Junhong [4 ]
Ryu, Changkook [5 ]
Kim, Seung-Soo [6 ]
机构
[1] Univ Seoul, Fac Environm Engn, Seoul 130743, South Korea
[2] Kongju Natl Univ, Div Adv Mat Engn, Gongju 314701, South Korea
[3] Kongju Natl Univ, Dept Chem Engn, Gongju 314701, South Korea
[4] Hanyang Univ, Sch Mech Engn, Seoul 133791, South Korea
[5] Sungkyunkwan Univ, Sch Mech Engn, Suwon 440746, South Korea
[6] Kangwon Natl Univ, Dept Chem Engn, Samcheok 245711, South Korea
关键词
Bio-oil; Fast pyrolysis; Sewage sludge; Chlorine; Metal oxide catalysts; LOW-TEMPERATURE PYROLYSIS; FLUIDIZED-BED; ADSORBENTS;
D O I
10.1016/j.biortech.2009.06.103
中图分类号
S2 [农业工程];
学科分类号
0828 ;
摘要
Fast pyrolysis of sewage sludge was carried out under different reaction conditions, and its effects on bio-oil characteristics were studied. The effect of metal oxide catalysts on the removal of chlorine in the bio-oil was also investigated for four types of catalysts. The optimal pyrolysis temperature for bio-oil production was found to be 450 degrees C, while much smaller and larger feed sizes adversely influenced production. Higher flow and feeding rates were more effective but did not greatly affect bio-oil yields. The use of the product gas as the fluidizing medium gave an increased bio-oil yield. Metal oxide catalysts (CaO and La2O3) contributed to a slight decrease in bio-oil yield and an increase in water content but were significantly effective in removal of chlorine from the bio-oil. The fixed catalyst bed system exhibited a higher removal rate than when metal oxide-supported alumina was used as the fluidized bed material. (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码:S83 / S85
页数:3
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