| 污泥连续式微波热解制备生物气 |
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| 引用本文： | 刘立群, 张军, 吴晓燕, 田禹, 张杰. 污泥连续式微波热解制备生物气[J]. 环境工程学报, 2016, 10(11): 6622-6628. doi: 10.12030/j.cjee.201506079 |
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| 作者姓名： | 刘立群 张军 吴晓燕 田禹 张杰 |
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| 作者单位： | 1.哈尔滨工业大学市政环境工程学院, 哈尔滨 150090 |
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| 基金项目： | 国家水体污染控制与治理科技重大专项（2013ZX07201007） 高等学校博士学科点专项科研基金资助项目（20112302110060） 中央高校基本科研业务费专项资金资助项目（HIT.NSRIF.2015096） 黑龙江省博士后科学基金资助项目（LBH-Z14093） |
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| 摘 要： | 采用升温迅速的微波能作为热源，利用自主设计微波设备对含水率为82%（m/m）的湿污泥进行高温热解实验。采用单因素实验法，探究热解终温、停留时间、活性炭添加量对污泥热解生物气组分和含量的影响规律，确定连续式运行的最佳工况条件：热解终温900℃，停留时间50 min，活性炭添加比例为30%，热解功率1 600 W；在此基础上进行连续12 h微波高温热解实验，共热解污泥56 kg，产生生物气32.26 kg，热解油10.98 kg，固体残渣12.66 kg，产气转化率高达57.8%，生物气组分H2+CO含量高达67%，热解产物具有良好的工业利用价值。污泥热解生物气中H2S浓度超标10倍以上，而NH3浓度未超标，硫化氢的去除技术研究值得关注。
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| 关 键 词： | 微波热解 污水污泥 连续运行 生物气 |
| 收稿时间： | 2015-09-12 |
Production of biosyngas from continuous microwave-induced pyrolysis of sewage sludge |
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| LIU Liqun, ZHANG Jun, WU Xiaoyan, TIAN Yu, ZHANG Jie. Production of biosyngas from continuous microwave-induced pyrolysis of sewage sludge[J]. Chinese Journal of Environmental Engineering, 2016, 10(11): 6622-6628. doi: 10.12030/j.cjee.201506079 |
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| Authors: | LIU Liqun ZHANG Jun WU Xiaoyan TIAN Yu ZHANG Jie |
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| Affiliation: | 1.School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, China |
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| Abstract: | Microwave energy was used as the heat source for a pilot-scale high-temperature pyrolysis experiment using wet sludge with 82% (m/m) moisture content. The single-factor experiment was used to investigate the effects of final temperature, residence time, and activated carbon content on resulting biosyngas composition and yield. A 12-hour continuous microwave-induced pyrolysis experiment was conducted under the optimum conditions established for continuous operation (pyrolysis temperature 900℃, residence time 50 min, active carbon ratio of 30% and MW power of 1 600 W). As a result, 32.26 kg of biosyngas, 10.98 kg of liquid oil, and 12.66 kg of solid residue were produced from 56 kg of sewage sludge. The conversion rate of gas products was as high as 57.8%, in which the yields of H2 and CO reached 67%, indicating good potential for industrial utilization. According to the Chinese standard of odor pollutants, the resulting H2S concentration exceeded 10 times while NH3 concentration was within the limit. Thus, it should be concerned about the removal technology of H2S in the pyrolysis biosyngas. |
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| Keywords: | microwave-induced pyrolysis sewage sludge continuous operation biosyngas |
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