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基于动态气封壁反应器的湿式氧化工艺

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殷逢俊, 陈忠, 王光伟, 陈鸿珍, 陈则良, 徐贵华, 徐愿坚. 基于动态气封壁反应器的湿式氧化工艺[J]. 环境工程学报, 2016, 10(12): 6988-6994. doi: 10.12030/j.cjee.201507151
引用本文: 殷逢俊, 陈忠, 王光伟, 陈鸿珍, 陈则良, 徐贵华, 徐愿坚. 基于动态气封壁反应器的湿式氧化工艺[J]. 环境工程学报, 2016, 10(12): 6988-6994. doi: 10.12030/j.cjee.201507151
shu
YIN Fengjun, CHEN Zhong, WANG Guangwei, CHEN Hongzhen, CHEN Zeliang, XU Guihua, XU Yuanjian. Wet air oxidation process based on dynamic gas seal wall reactor[J]. Chinese Journal of Environmental Engineering, 2016, 10(12): 6988-6994. doi: 10.12030/j.cjee.201507151
Citation: YIN Fengjun, CHEN Zhong, WANG Guangwei, CHEN Hongzhen, CHEN Zeliang, XU Guihua, XU Yuanjian. Wet air oxidation process based on dynamic gas seal wall reactor[J]. Chinese Journal of Environmental Engineering, 2016, 10(12): 6988-6994. doi: 10.12030/j.cjee.201507151
shu

基于动态气封壁反应器的湿式氧化工艺

  • 1.

    中国科学院重庆绿色智能技术研究院, 中国科学院水库水环境重点实验室, 重庆 400714

  • 2.

    中国科学院大学, 北京 100049

  • 基金项目:

    中国科学院"百人计划"项目（Y33Z050M10）

    重庆市基础与前沿研究计划项目（cstc2015jcyjA20010）

    重庆市国土房管科技计划项目（CQGT-KJ-2014040）

  • 中图分类号: X703

Wet air oxidation process based on dynamic gas seal wall reactor

  • 1.

    Chongqing Institute of Green and Intelligent Technology(CIGIT), Key Laboratory of Reservoir Aquatic Environment, Chinese Academy of Sciences, Chongqing 400714, China

  • 2.

    University of Chinese Academy of Sciences, Beijing 100049, China

  • Fund Project:

  • 摘要: 将动态气封壁反应器应用于湿式氧化，利用空气与亚临界水的界面张力将腐蚀性反应液局限在多孔壁以内实现“气封”，并在9.1~10.9 MPa、242~338℃的实验条件下得到了验证。对应的湿式氧化工艺在处理固含量2.9%的城市污泥和回收固含量1.6%~10.5%的污泥用活性炭的实验过程中，设备运行稳定，“防腐抗堵”性能良好。进一步分析表明，动态气封壁反应器能强化气液混合、降低设备投入和减少系统能耗，具有一定的开发潜力。但由于受限于反应器体积，过氧量和停留时间不足，导致处理效率偏低，需进一步优化改进。
    Abstract: A dynamic gas seal wall reactor (DGSWR) was applied to wet air oxidation (WAO). The gas seal effect was achieved to contain a corrosive reaction mixture within a porous tube by taking advantage of the surface tension difference between air and subcritical water. The gas seal effect was successfully verified at 9.1 to 10.9 MPa and 242 to 338℃ by treating sewage sludge with 2.9% dry solid or spent activated carbon with 1.6% to 10.5% dry solid, respectively. Under WAO conditions, the DGSWR showed stable operation, and good anti-plugging and anti-corrosion performance. Further analysis showed that it possessed some other advantages over normal WAO systems, such as enhanced gas-liquid mixing, reduced reactor cost, and reduced energy consumption. However, both the TOC removal efficiency and activated carbon regeneration efficiency for DGSWR, were low because the reaction volume, stoichiometric oxygen excess, and residence time were low for the current reactor. The DGSWR should be further studied and improved.
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  • [1] ZOU L. Y., LI Yuncang, HUNG Y. T. Wet air oxidation for waste treatment//WANG L. K., HUNG Y. T., SHAMMAS N. K. Advanced Physicochemical Treatment Technologies. Berlin:Springer, 2007
    [2] MISHRA V. S., MAHAJANI V. V., JOSHI J. B. Wet air oxidation. Industrial & Engineering Chemistry Research, 1995, 34(1):2-48
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    [4] DEBELLEFONTAINE H., FOUSSARD J. N. Wet air oxidation for the treatment of industrial wastes. Chemical aspects, reactor design and industrial applications in Europe. Waste Management, 2000, 20(1):15-25
    [5] BAROUTIAN S., SMIT A. M., ANDREWS J., et al. Hydrothermal degradation of organic matter in municipal sludge using non-catalytic wet oxidation. Chemical Engineering Journal, 2015, 260:846-854
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    [7] 陈玲, 赵建夫, 陈岳松. 活性炭湿式氧化再生工艺参数控制与效率试验. 上海环境科学, 2001(11):551-553 CHEN Ling, ZHAO Jianfu, CHEN Yuesong. Regeneration of phenol-spent activated carbon by wet air oxidation-Regeneration parameters control and efficiency. Shanghai Environmental Sciences, 2001(11):551-553(in Chinese)
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    [11] MARRONE P. A., HONG G. T. Corrosion control methods in supercritical water oxidation and gasification processes. The Journal of Supercritical Fluids, 2009, 51(2):83-103
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    [13] YANG Shu, WANG Guangwei, XU Yuanjian. New design of supercritical water oxidation reactor for sewage sludge treatment. Advanced Materials Research, 2013, 774-776:212-215
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  • 收稿日期:  2015-08-17
  • 刊出日期:  2016-12-08
殷逢俊, 陈忠, 王光伟, 陈鸿珍, 陈则良, 徐贵华, 徐愿坚. 基于动态气封壁反应器的湿式氧化工艺[J]. 环境工程学报, 2016, 10(12): 6988-6994. doi: 10.12030/j.cjee.201507151
引用本文: 殷逢俊, 陈忠, 王光伟, 陈鸿珍, 陈则良, 徐贵华, 徐愿坚. 基于动态气封壁反应器的湿式氧化工艺[J]. 环境工程学报, 2016, 10(12): 6988-6994. doi: 10.12030/j.cjee.201507151
shu
YIN Fengjun, CHEN Zhong, WANG Guangwei, CHEN Hongzhen, CHEN Zeliang, XU Guihua, XU Yuanjian. Wet air oxidation process based on dynamic gas seal wall reactor[J]. Chinese Journal of Environmental Engineering, 2016, 10(12): 6988-6994. doi: 10.12030/j.cjee.201507151
Citation: YIN Fengjun, CHEN Zhong, WANG Guangwei, CHEN Hongzhen, CHEN Zeliang, XU Guihua, XU Yuanjian. Wet air oxidation process based on dynamic gas seal wall reactor[J]. Chinese Journal of Environmental Engineering, 2016, 10(12): 6988-6994. doi: 10.12030/j.cjee.201507151
shu

基于动态气封壁反应器的湿式氧化工艺

  • 1.  中国科学院重庆绿色智能技术研究院, 中国科学院水库水环境重点实验室, 重庆 400714
  • 2.  中国科学院大学, 北京 100049
  • 收稿日期:  2015-08-17
基金项目:

中国科学院"百人计划"项目（Y33Z050M10）

重庆市基础与前沿研究计划项目（cstc2015jcyjA20010）

重庆市国土房管科技计划项目（CQGT-KJ-2014040）

摘要: 将动态气封壁反应器应用于湿式氧化，利用空气与亚临界水的界面张力将腐蚀性反应液局限在多孔壁以内实现“气封”，并在9.1~10.9 MPa、242~338℃的实验条件下得到了验证。对应的湿式氧化工艺在处理固含量2.9%的城市污泥和回收固含量1.6%~10.5%的污泥用活性炭的实验过程中，设备运行稳定，“防腐抗堵”性能良好。进一步分析表明，动态气封壁反应器能强化气液混合、降低设备投入和减少系统能耗，具有一定的开发潜力。但由于受限于反应器体积，过氧量和停留时间不足，导致处理效率偏低，需进一步优化改进。

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