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首页> 外文期刊>Fuel Processing Technology >Coal and coal and calcined dolomite gasification experiments in a bubbling fluidized bed gasifier under air atmosphere
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Coal and coal and calcined dolomite gasification experiments in a bubbling fluidized bed gasifier under air atmosphere

机译：空气气氛下鼓泡流化床气化炉中的煤及煤和煅烧白云石气化实验

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摘要

Among different kinds of parameters, the fuel input plays a principal role on the quality of the product gas generated by gasification. Turkish coals have high ash and sulfur contents along with low carbon content and low heating value. The present study investigates the gasification characteristics of four different Turkish coals and also the effects of addition of calcined dolomite on the quality of the product gas. A laboratory scale bubbling fluidized bed gasifier is used to perform gasification tests. Within this frame, air is used as a gasification agent, quartz sand is used as a bed material and the effects of equivalence ratio (ER), coal type and calcined dolomite on gas properties are investigated. The LHV is calculated by using the measured gas compositions. Comparing the gasification performances of four Turkish coals at a fixed ER value, the present study reveals that the ranking is, from the highest to the lowest, Orhaneli, Kale-2, Kale-1 and Goynuk. For Kale-1, the LHV is obtained in the range of 4.36 to 6.16 MJ/Nm~3 for the ER range of 0.44 to 0.17, respectively. The dolomite decreases the tar, H2S and NH3 contents, as well as the LHV of the product gas.
机译：在不同种类的参数中，燃料输入对由气化产生的产物气体的质量起主要作用。土耳其煤的灰分和硫含量高，碳含量低，热值低。本研究调查了四种不同的土耳其煤的气化特性，以及煅烧白云石的加入对产物气质量的影响。实验室规模的鼓泡流化床气化炉用于进行气化测试。在此框架内，空气用作气化剂，石英砂用作床层材料，研究了当量比（ER），煤类型和煅烧白云石对气体性质的影响。 LHV通过使用测得的气体成分来计算。比较四种土耳其煤在固定的ER值下的气化性能，本研究表明，排名从高到低依次为Orhaneli，Kale-2，Kale-1和Goynuk。对于Kale-1，对于ER范围为0.44至0.17，LHV分别在4.36至6.16 MJ / Nm〜3的范围内获得。白云石降低了焦油，H2S和NH3含量以及产物气体的LHV。

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