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CaO对城市生活垃圾原位水蒸气气化制备富氢燃气的影响

王晶博 张 静 钱益斌 胡 超 周兴翠 肖 波 马彩凤

王晶博, 张 静, 钱益斌, 胡 超, 周兴翠, 肖 波, 马彩凤. CaO对城市生活垃圾原位水蒸气气化制备富氢燃气的影响[J]. 环境科学研究, 2014, 27(3): 279-286.
引用本文: 王晶博, 张 静, 钱益斌, 胡 超, 周兴翠, 肖 波, 马彩凤. CaO对城市生活垃圾原位水蒸气气化制备富氢燃气的影响[J]. 环境科学研究, 2014, 27(3): 279-286.
WANG Jing-bo, ZHANG Jing, QIAN Yi-bin, HU Chao, ZHOU Xing-cui, XIAO Bo, MA Cai-feng. Influence of CaO on Hydrogen-Rich Gas Production from in-situ Steam Gasification of the Municipal Solid Waste[J]. Research of Environmental Sciences, 2014, 27(3): 279-286.
Citation: WANG Jing-bo, ZHANG Jing, QIAN Yi-bin, HU Chao, ZHOU Xing-cui, XIAO Bo, MA Cai-feng. Influence of CaO on Hydrogen-Rich Gas Production from in-situ Steam Gasification of the Municipal Solid Waste[J]. Research of Environmental Sciences, 2014, 27(3): 279-286.

CaO对城市生活垃圾原位水蒸气气化制备富氢燃气的影响

基金项目: 国家自然科学基金项目(21276100);国家高技术研究发展计划(863)项目(2012AA101809)

Influence of CaO on Hydrogen-Rich Gas Production from in-situ Steam Gasification of the Municipal Solid Waste

  • 摘要: 为高效资源化利用城市生活垃圾,提出了一种城市生活垃圾原位水蒸气气化制备富氢燃气方法. 在城市生活垃圾原位水蒸气气化过程中添加CaO,对CO2进行高温吸收,促进H2产生. 考察了n(Ca)/n(C)(CaO与垃圾原料中碳元素的摩尔比)、反应温度及垃圾含水率等因素对H2产率以及气化特性的影响. 结果表明:随着n(Ca)/n(C)由0增至1.5,φ(H2)和H2产率(以w计)分别由25.89%、10.86g/kg增至45.90%、31.56g/kg;水蒸气的引入提高了CaO的碳酸化反应活性,促进了H2的产生,但当含水率高于39.45%时,则会降低产气品质;反应温度高于750℃时,虽能强化城市生活垃圾、焦油的热分解等反应产生更多的H2,但不利于CaO的碳酸化反应,最佳的操作温度为700~750℃;对固体残留物进行XRD和SEM分析可知,反应温度高于750℃会降低CaO的活性,不利于CaO对CO2的吸收. 以CaO为添加剂的城市生活垃圾原位水蒸气气化制备富氢燃气是一种有效的城市生活垃圾资源化利用方式.

     

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出版历程
  • 收稿日期:  2013-07-23
  • 修回日期:  2013-10-15
  • 刊出日期:  2014-03-25

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