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首页> 外文会议>International thermal treatment technologies(IT3) amp; hazardous waste combustors (HWC) joint conference 2009 >Combined Gasification of Woody Biomass and Coal in Down-flow Entrained Bed
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Combined Gasification of Woody Biomass and Coal in Down-flow Entrained Bed

机译：向下夹带床中木质生物质和煤的联合气化

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摘要

Co-gasification experiment with woody biomass and coal was carried out in down-flow entrained gasifier. Pulverized woody biomass and pulverized coal was used as the feedstock, and mixing feedstock was prepared with woody biomass and coal in the different mixing ratio. Oxygen was used as gasifying agent and nitrogen was used for the carrier gas of feedstock. Feedstock and oxygen was injected from the top to gasifer with a burner. Operation gasification temperature was controlled over 1200 K to avoid tar component generation. Injecting feedstock rate, feedstock mixing ratio and oxygen ratio was the operation parameter. Injecting feedstock ratio was 180-200 g/min, woody biomass mixing ration was 0-100 % and oxygen ratio was around 0.4-0.7 in this experiment. The temperature of gasifier, produced gas composition and produced gas volume from the gasifier was measured during the gasification experiment. Carbon conversion, cold gas efficiency and overall apparent gasification rate was calculated from the produced gas composition and produced gas volume. The gasification temperature and produced gas composition was varied by the feeding ratio, and the mixing feedstock achieved the highest cold gas efficiency as well as woody biomass feedstock.
机译：在下流式夹带气化炉中进行了木质生物质和煤的共气化实验。以粉状木质生物质和粉煤为原料，以木质生物质和煤以不同的混合比制备混合原料。氧气用作气化剂，氮气用作原料的载气。用燃烧器从顶部将原料和氧气注入气化炉。将操作气化温度控制在1200 K以上以避免焦油成分的产生。进料速度，进料混合比和氧比为操作参数。在该实验中，进料比为180-200g / min，木质生物质混合比为0-100％，氧比为0.4-0.7左右。在气化实验期间，测量气化炉的温度，气化炉产生的气体成分和产生的气量。由产生的气体组成和产生的气体量计算碳转化率，冷气效率和总表观气化率。气化温度和产生的气体组成随进料比的变化而变化，混合原料和木质生物质原料达到了最高的冷气效率。

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