| 张永利*,马凯,马玉林.功率红外作用下煤对CO2吸附/解吸规律研究[J].实验力学,2019,34(5):883~889 |
| 功率红外作用下煤对CO2吸附/解吸规律研究 |
| On the CO2 adsorption/desorption of coal based on power infrared technology |
| 投稿时间：2018-03-02 修订日期：2018-04-01 |
| DOI：10.7520/1001-4888-18-039 |
| 中文关键词: 功率红外 吸附/解吸 曲线拟合 CO2 |
| 英文关键词:power infrared adsorption/desorption curve fitting CO2 |
| 基金项目:国家自然科学基金(51574138)，辽宁省自然科学基金计划(2015020647)，辽宁省教育厅一般项目(LJYL046)资助 |
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| 中文摘要: |
| 中国煤层气储量丰富，但由于赋存条件差，储层特征表现为低压、低渗、低饱和度，煤层气解吸及运移困难，导致目前大多数煤层气井产量低，产量递减快。为了提高煤层气的开采效率，增加煤层气的产出量，针对此问题本文提出了一种煤层气增产新技术--功率红外开采煤层气。采用自主研制的功率红外作用下煤层气等温吸附/解吸仿真试验仪进行实验，基于该装置对取自海州矿的煤样进行了恒定温度下不同红外功率、不同压力吸附/解吸规律的研究。结果表明，同一红外功率下，吸附量与解吸量关于压力值呈正相关，且最终趋于稳定；同一压力条件下，吸附量与解吸量随红外功率的增加逐渐减小；解吸作用较吸附作用有明显的滞后现象;吸附/解吸过程符合Langmuir Ⅰ型曲线模型。所得功率红外作用下煤层气的吸附/解吸规律可为功率红外开采煤层气应用提供理论参考。 |
| 英文摘要: |
| China is rich in coalbed methane (CBM) reserves, but due to poor storage conditions, reservoir characteristics are low pressure, low permeability, low saturation, difficulty in desorption and transport of coalbed methane, which results in low production and rapid decline of production in most coalbed methane wells at present. In order to improve the mining efficiency of CBM and increase its output of coalbed methane, a new technology for increasing the production of CBM is put forward in this paper, which is the power infrared mining of CBM. Experiment was carried out by using the self-developed simulation instrument of isothermal adsorption/desorption of coalbed methane under the action of power infrared, and based on this apparatus, experiment for coalbed samples taken from Haizhou Mine was carried out by using power infrared for isothermal adsorption/desorption under different pressure. Results show that the adsorption/desorption capacity have a positive correlation trend with respect to pressure value, and eventually tend to be stable. Under the same pressure condition, the adsorption/desorption capacity decrease with the increase of out-power infrared. Compared with adsorption, desorption is apparently lagged. The process of the adsorption/desorption is in consistent with Langmuir Ⅰ curve model. Therefore, the adsorption/desorption behavior of CBM under the action of infrared power may provide experimental foundation for the application of CBM extraction. |
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