粒径对煤在H2/Ar等离子体中热解的影响 |
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引用本文: | 吕永康,田原宇,王大鸷,谢克昌,朱素渝.粒径对煤在H2/Ar等离子体中热解的影响[J].燃料化学学报,2002,30(3):229-233. |
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作者姓名: | 吕永康 田原宇 王大鸷 谢克昌 朱素渝 |
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作者单位: | 一碳化学与化工国家重点实验室,煤科学与技术山西省重点实验室,太原理工大学,山西,太原,030024 |
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基金项目: | 国家自然科学基金重点项目 (1993 5 0 10 ),国家重点基础研究发展规划 (G19990 2 2 10 6)~~ |
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摘 要: | 对粒径在H2/Ar等离子体煤热解制乙炔中的影响进行了研究,得到了煤的粒径与煤的裂解程度(转化率)、乙炔收率、乙炔在产品气体中摩尔分数和反应器壁结焦的关系,并且在考虑各种因素的制约下,对如何选择最佳粒径和粒径分布的问题进行了讨论。根据煤等离子体热解制乙炔反应器壁结焦的机理和煤粒径是影响反应器内结焦的重要因素,提出了进料粒径双峰分布缓解煤等离子体热解制乙炔装置结焦的新方法,实验证明该方法可行。
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关 键 词: | 粒径 煤 等离子体 热解 乙炔 粒度 结焦 氢气 氩气 |
文章编号: | 0253-2409(2002)03-0229-05 |
修稿时间: | 2001年12月12 |
INFLUENCE OF GRANULARITY ON COAL PYROLYSIS IN Ar/H2 PLASMA |
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Abstract: | Coal pyrolysis in arc plasma is very complex These are many factors affecting this process, such as coal size, type of coal, proportion of working gases (Ar/H 2) and input powders Coal Pyrolysis in H 2 rich Ar plasma jet reactor was performed The effect of granularity on coal conversion, acetylene yield, acetylene molar ratio in product gas and coke formation at the wall of reactor was studied According to the coke formation mechanism in which the granularity is the key factor, the new way of coal feed with double apex distribution granularity was put forward to eliminate the coke formation The experiments indicated that this new method was feasible |
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Keywords: | coal plasma pyrolysis acetylene granularity double apex coke formation |
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