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Gasification of Coal-Water Compositions by Laser Pulses of Various Intensity

机译：通过各种强度的激光脉冲气化煤水组合物

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The paper analyzes the processes occurring on the interaction of high-power nanosecond laser pulses with a coal-water mixture prepared from gas-coal waste. It was found that the rate of production of a mixture of CO and H-2 sharply increased at a laser radiation intensity higher than 8 J/cm(2). This was expressed in a sharp increase in the concentration of the combustible components of synthesis gas (CO, up to 0.57 vol %) and in a noticeable acceleration of the growth of the mass of a gas-aerosol fuel mixture upon the absorption of laser pulses (by 40%). At low pulse energy densities, the generation of a finely dispersed (particle size, 30-70 m) fuel aerosol was a predominant process. Gasification came into play above the effective ablation threshold when the weight ratio between synthesis gas and the sprayed aerosol reached 1 : 3. Thus, the action of laser pulses makes it possible to convert coal preparation wastes into a highly flammable gas-aerosol fuel mixture.
机译：本文分析了高功率纳秒激光脉冲与由煤气 - 煤矸石制备的煤水混合物相互作用的过程。发现CO和H-2混合物的产生率在高于8J / cm（2）的激光辐射强度下急剧增加。这表达了合成气（CO，高达0.57体积％）的可燃组分浓度的急剧增加，并且在吸收激光脉冲的吸收时，在气溶胶燃料混合物的质量的显着加速度下显着加速（达到40％）。在低脉冲能量密度下，精细分散的（粒径，30-70μm）燃料气溶胶的产生是主要的方法。当合成气和喷涂气溶胶之间的重量比达到1：3时，气化在有效的消融阈值上方发挥作用。因此，激光脉冲的作用使得可以将洗煤废物转化为高度易燃的气溶胶燃料混合物。

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