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电厂烟气注入采空区封存的可行性

高飞 邓存宝 王雪峰 武司苑

高飞, 邓存宝, 王雪峰, 武司苑. 电厂烟气注入采空区封存的可行性[J]. 环境科学研究, 2016, 29(7): 1096-1100.
引用本文: 高飞, 邓存宝, 王雪峰, 武司苑. 电厂烟气注入采空区封存的可行性[J]. 环境科学研究, 2016, 29(7): 1096-1100.
GAO Fei, DENG Cunbao, WANG Xuefeng, WU Siyuan. Feasibility Analysis on Seal of Power Plant Smoke Injected into the Goaf[J]. Research of Environmental Sciences, 2016, 29(7): 1096-1100.
Citation: GAO Fei, DENG Cunbao, WANG Xuefeng, WU Siyuan. Feasibility Analysis on Seal of Power Plant Smoke Injected into the Goaf[J]. Research of Environmental Sciences, 2016, 29(7): 1096-1100.

电厂烟气注入采空区封存的可行性

基金项目: 国家自然科学基金面上项目(51174108);辽宁省教育厅一般项目(L2014138)

Feasibility Analysis on Seal of Power Plant Smoke Injected into the Goaf

  • 摘要: 为了考察将电厂烟气注入采空区实现防火与气体封存的可行性,采用自制的煤大样量吸附装置测定了常温、常压条件下塔山烟煤对各种烟气成分的饱和吸附量,并对烟煤在空气和烟气氛围下对氧气的吸附行为进行了研究. 结果表明:将电厂烟气注入井下采空区,每t煤可封存约1.20 m3的CO2,烟气中SO2和NO2可全部被烟煤封存;在物理吸附阶段,烟煤对CO2的吸附量分别为对N2吸附量的13倍,对O2吸附量的41倍;在常温、常压条件下,烟煤对N2和CO2的吸附为物理吸附,12 h已基本达到饱和状态,但烟煤对O2的吸附随着时间的增加逐渐由物理吸附转变为化学吸附,因此在较长时间内未能达到平衡状态. 通过不同气体氛围下烟煤吸附氧气量的数据分析发现,将电厂烟气注入到采空区,因烟煤对氧气的吸附量降低了29%,可有效抑制其自燃反应的进行. 研究显示,电厂烟气注入采空区可实现节能减排和灾害治理的统一.

     

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出版历程
  • 收稿日期:  2016-01-14
  • 修回日期:  2016-04-11
  • 刊出日期:  2016-07-25

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