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首页> 外文期刊>Powder Technology: An International Journal on the Science and Technology of Wet and Dry Particulate Systems >Catalytic ash free coal gasification in a fluidized bed thermogravimetric analyzer
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Catalytic ash free coal gasification in a fluidized bed thermogravimetric analyzer

机译：流化床中的催化灰煤气化在流化床热重分析仪

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摘要

Catalytic ash free coal gasification was investigated in the newly developed fluidized bed thermogravimetric analyzer. The total yield obtained from the fluidized bed TGA showed good agreement with the total gas product. For char gasification, the values of activation energy and pre-exponential factor were similar to those obtained from coal gasification in our previous work. The activation energy for the CO shift reaction decreased by 56% and 37% from the value reported in our previous work for coal gasification and in literature for catalytic coal gasification respectively. For the methane reforming reaction, the value of the activation energy was reduced by 33% from the one observed previously in our work, in the absence of a catalyst and decreased by 42% from the one reported in literature for catalytic gasification. The carbon conversion for the catalytic ash free coal gasification was 69% higher than the value obtained from the coal gasification for the same experimental conditions. This value was found to be 44.5% for the ash free coal gasification. The heating value of the gas product by using the catalyst for temperatures below 520 degrees C was also higher than without catalyst. However, at higher temperature, using the catalyst had no effect on the heating value of the gas product. (C) 2017 Elsevier B.V. All rights reserved.
机译：在新开发的流化床热重分析仪中研究了催化灰自由煤气化。从流化床TGA获得的总产量与总天然气产品吻合良好。对于炭气化，活化能量和预指数因子的值与我们以前的工作中的煤气化获得的值类似。 CO移位反应的激活能量分别从我们以前的煤气化工作和催化煤气化的文献中报告的价值下降了56％和37％。对于甲烷重整反应，在我们的工作中观察到的活化能量的值减少了33％，在没有催化剂的情况下，从文献中报告的催化气化中报告的催化剂下降42％。催化灰煤气化的碳转化比在相同的实验条件下从煤气化获得的值高69％。发现灰烬游离煤气化的该值为44.5％。使用催化剂的气体产品的加热值低于520℃的温度也高于无催化剂。然而，在更高的温度下，使用催化剂对气体产品的加热值没有影响。 （c）2017 Elsevier B.v.保留所有权利。

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