常松;初茉;曹文瀚;王博;
CHANG Song;CHU Mo;CAO Wenhan;WANG Bo;China University of Mining and Technology ( Beijing) ,School of Chemical and Environmental Engineering;

• 1:中国矿业大学(北京)化学与环境工程学院

摘要(Abstract)：

为实现煤直接液化残渣的清洁、高效利用,利用管式炉进行液化残渣的热解实验,研究了残渣热解气体析出产率、速率及气体组成随温度的变化规律。结果表明:400℃前,气体析出量较少,全程共析出气体143.6 L,残渣热解气平均产率为0.2393 L/g,析出速率呈"两段式"分布,500⁵50℃和700550℃和700⁷50℃出现两个极值,分别为1.86、1.89 L/min。气体组成中H2含量较高,450750℃出现两个极值,分别为1.86、1.89 L/min。气体组成中H2含量较高,450⁹00℃平均体积分数高达65%,分别在500℃出现极大值66.4%和800℃出现最大值70.2%;H2析出特点与气体产率相似,呈"两段式"分布。CH4在600℃出现最高值23.8%,C m H n在500℃出现最高值7.7%,CO在900℃出现极大值9.0%,CO2在残渣热解气中含量较少,分别在500℃出现极大值1.15%和800℃出现极大值1.24%。
To achieve clean and effective use of direct liquefaction residue,conduct the pyrolysis experiment on fixed-bed tubular furnace. Investigate gas yield,precipitation rate and the change rule with temperature. The results show that,when the temperature is below400 ℃,the average yield of gas is 0. 2393 L / g,the total gas yield are 143. 6 L. The precipitation rate shows a " two section" peculiarity,there are two extreme value at the temperature range of 500 ℃ to 550 ℃ and 700 ℃ to 750 ℃,which is 1. 86 L / min and 1. 89 L / min respectively. When the temperature is below 450 ℃,the H2in gas is little,while its average content reach up to 65 percent between 450 ℃and 900 ℃. The extreme value is 66. 4 percent at 500 ℃ and the maximum value is 70. 2 percent at 800 ℃. Its precipitation rate is similar to the average yield of gas. The maximum value of CH4appears at 600 ℃,which is 23. 8 percent,and the maximum value of C m H n appears at 600 ℃,which is 7. 7 percent. There is a little CO under 750 ℃,the maximum value of CO appears at 900 ℃,which is 9. 0 percent.There is a little CO2in the gas,there are two extreme value at 500 ℃ and 800 ℃,which is 1. 15 percent and 1. 24 percent respectively.

关键词(KeyWords)： 液化残渣;热解;产气规律;气体组成;固定床;管式炉
liquefaction residue;pyrolysis;precipitation rate;gas composition;fixed-bed;pyrolysis;tubular furnace

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金资助项目(U1261101)

作者(Authors): 常松;初茉;曹文瀚;王博;
CHANG Song;CHU Mo;CAO Wenhan;WANG Bo;China University of Mining and Technology ( Beijing) ,School of Chemical and Environmental Engineering;

DOI: 10.13226/j.issn.1006-6772.2014.02.022

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