首页> 外文期刊>Energy & fuels >Study on Co-combustion Kinetics of Oil Shale Sludge and Semicoke
【24h】

Study on Co-combustion Kinetics of Oil Shale Sludge and Semicoke

机译:油页岩污泥与半焦的混合燃烧动力学研究

获取原文
获取原文并翻译 | 示例
       

摘要

Experiments on combustion of oil shale sludge and semicoke were conducted on TG-FTIR to investigate the mechanism of co-combustion involved. The synergy effect of sludge and semicoke was estimated by using the interaction coefficient and the relative error of mean square root. In addition, the activation energy was calculated by means of Coats Redfern, DAEM, FWO, and Starink. The results show that the whole process contains three stages: light components combustion (130-350 degrees C), heavy components and volatiles co-combustion (350-650 degrees C), and fixed carbon combustion (650-750 degrees C). During the combustion, synergy behaves differently with variation of mixing proportion in mixture and heating rates. DTG curves of mixtures can be decomposed into five Gaussian fitting peaks, respectively corresponding to five independent parallel reactions. From the results of Coats Redfern, one can see that the kinetic triplets are related to mixture proportion, combustion stage, and heating rate. In addtion, the results of DAEM, FWO, and Starink indicate the three above are fit for calculating kinetic parameters of mixture and also suggest that combustion of mixture is a multiple reaction. It can be noted that there is a positive relationship between release rate of flue gas and proportion of sludge. Besides, the nonlinearity between A(CO)/A(CO2) and the proportion of sludge indicates that an overlarge proportion of sludge is disadvantageous for sufficient burning. According to the combustion characteristics, the kinetic analysis, synergy, and FTIR analysis of flue gas, the optimal blending ratio is 20%/80% of sludge/semicoke.
机译:在TG-FTIR上进行了油页岩污泥和半焦的燃烧实验,以研究其共燃烧的机理。利用相互作用系数和均方根的相对误差,估算了污泥与半焦的协同效应。另外,借助于Coats Redfern,DAEM,FWO和Starink计算活化能。结果表明,整个过程包括三个阶段:轻组分燃烧(130-350摄氏度),重组分和挥发物共燃烧(350-650摄氏度)和固定碳燃烧(650-750摄氏度)。在燃烧过程中,协同作用随混合物中混合比例和加热速率的变化而变化。混合物的DTG曲线可分解为五个高斯拟合峰,分别对应于五个独立的平行反应。从高士·雷德芬(Coats Redfern)的结果中,可以看出动力学三元组与混合物比例,燃烧阶段和加热速率有关。此外,DAEM,FWO和Starink的结果表明上述三个参数适合计算混合物的动力学参数,也表明混合物的燃烧是多重反应。可以注意到,烟气的释放速率与污泥比例之间存在正相关关系。此外,A(CO)/ A(CO2)与污泥比例之间的非线性关系表明,污泥比例过大不利于充分燃烧。根据烟气的燃烧特性,动力学分析,协同作用和FTIR分析,最佳混合比为污泥/半烟的20%/ 80%。

著录项

  • 来源
    《Energy & fuels》 |2016年第3期|2373-2384|共12页
  • 作者单位

    Northeast Dianli Univ, Changchun Rd 169, Jilin 132012, Jilin, Peoples R China;

    Northeast Dianli Univ, Changchun Rd 169, Jilin 132012, Jilin, Peoples R China;

    Northeast Dianli Univ, Changchun Rd 169, Jilin 132012, Jilin, Peoples R China;

    Northeast Dianli Univ, Changchun Rd 169, Jilin 132012, Jilin, Peoples R China;

    Northeast Dianli Univ, Changchun Rd 169, Jilin 132012, Jilin, Peoples R China;

    Northeast Dianli Univ, Changchun Rd 169, Jilin 132012, Jilin, Peoples R China;

    Northeast Dianli Univ, Changchun Rd 169, Jilin 132012, Jilin, Peoples R China;

    Jishun Oil Shale Dev Co Ltd, Jilin 132013, Jilin, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号