摘要
为了提高油页岩热解制油的效率和半焦的利用价值,将桦甸油页岩和废轮胎共热解,采用热重分析仪和铝甑反应器考察共热解的失重行为、产物产率和组成性质,基于实验值和计算值的差异分析协同效应。结果表明,共热解可以促进挥发分的释放,500℃时实际失重量比计算值高,当废轮胎占比为80%时二者差值为2.86%;共热解过程存在“增油减水”效应,废轮胎占比为50%时实际油产率为32.91%,比计算值高约1.5%,实际水产率比计算值低1.20%~1.77%,同时使热解油中大于350℃的重质组分含量升高;废轮胎热解的半焦发热量达30.43 MJ/kg,热解气中C_(1)-C_(4)烃类含量更高,使共热解半焦和热解气的热值高于油页岩热解。
In order to improve the efficiency of oil shale pyrolysis and the utilization value of semi-coke,this paper co-pyrolyzed Huadian oil shale and waste tire.The weight loss behavior,product yield and composition properties of co-pyrolysis were investigated by thermogravimetric analyzer and aluminum retort reactor.The synergistic effect was analyzed based on the difference between experimental and calculated values.The results show that co-pyrolysis can promote the release of volatile matter,the actual weight loss is higher than the calculated value at 500℃,and reaches the maximum value of 2.86%when the proportion of waste tire is 80%.The mixed pyrolysis of oil shale and waste tire has the effect of“increasing oil and reducing water”.When the waste tire accounts for 50%,the actual oil yield is 32.91%,which is 1.5%higher than the calculated value,and the actual water yield is 1.20%to 1.77%lower than the calculated value.Meanwhile,the content of heavy components with boiling point higher than 350℃in the pyrolysis oil increases.There is higher yield of C1~C4 hydrocarbons from waste tire pyrolysis,and the calorific value of semicoke is up to 30.43 MJ/kg.Co-pyrolysis can also improve the calorific value of pyrolysis gas and semi-coke.
作者
畅志兵
王楚楚
王依宁
王新红
旷文昊
初茉
Chang Zhibing;Wang Chuchu;Wang Yining;Wang Xinhong;Kuang Wenhao;Chu Mo(School of Chemical and Environmental Engineering,China University of Mining and Technology-Beijing,Beijing 100083,China)
出处
《矿业科学学报》
CSCD
2023年第2期213-221,共9页
Journal of Mining Science and Technology
基金
中央高校基本科研业务费专项资金(2020XJHH03)
中国矿业大学(北京)大学生创新训练(202103027)。
关键词
油页岩
废轮胎
共热解特性
产物分布
协同效应
oil shale
waste tire
co-pyrolysis characteristic
product distribution
synergistic effect
