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Kinetics Of Tire Derived Fuel (tdf) Char Oxidation And Accompanying Changes In Surface Area

机译：轮胎衍生燃料（tdf）炭氧化的动力学及表面积变化

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The oxidation behavior of tire-derived fuel (TDF) char has recently been studied by several groups. In the present study, TDF char oxidation has been examined between 670 and 825 K, at oxygen partial pressures ranging from 2 to 19.8 kPa. The order of reaction with respect to oxygen varied with burnoff, and was in the range 0.72-0.86. The activation energy of reaction ranged with burnoff from 138 to 150 kJ/mol. The reaction rate does not correlate well with BET surface area, but did correlate well with the surface area in pores ranging in size from 1.2 to roughly 7 nm in width. Pores smaller than 1.2 nm exist in the char, but appear not to be used or developed by the oxidation reaction. Results for chars that have been acid washed to remove some inorganic matter show lowered reactivity, and a distinctly different pattern of pore development with burnoff. This is, in turn, reflected in a very different pattern of reactivity change with burnoff for such materials.
机译：最近，几组研究了轮胎衍生燃料（TDF）炭的氧化行为。在本研究中，在2至19.8 kPa的氧分压下，已检测到670至825 K之间的TDF炭氧化。相对于氧的反应顺序随燃尽而变化，并且在0.72-0.86的范围内。反应的活化能与燃尽的范围为138至150kJ / mol。反应速率与BET表面积没有很好的相关性，但与孔径范围从1.2到大约7 nm的孔中的表面积确实有很好的相关性。炭中存在小于1.2nm的孔，但似乎未被氧化反应使用或显影。经酸洗以除去某些无机物的炭的结果显示，反应性降低，并且随着燃尽，孔发展的方式明显不同。反过来，对于这种材料，反应性随燃尽而变化的模式非常不同。

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