期刊文献+

神府烟煤焦与城市固体废弃物水热炭焦共气化反应特性的实验研究 被引量:2

Experimental study on co-gasification reactivity of Shenfu bituminous coal char and MSW-based hydrochar
下载PDF
导出
摘要 基于常压热重分析仪(TG)开展了神府烟煤焦(SF char)、水热炭焦(HTC char)及其混合物等温CO_2气化实验以研究气化温度(800-950℃)、掺混比(3∶1、1∶1、1∶3)对共气化特性的影响,并探讨了气化反应活化能及其影响因素。结果表明,HTC因其较大的比表面积和较多的灰分而具有较强的气化活性。低HTC掺混比的混合物气化活性对温度变化敏感。低温下混合物的气化活性受HTC掺混影响显著。反应活化能随着反应转化率的增大而逐渐增大并趋于稳定。进一步研究表明,混合物的活化能与其掺混比以及活性矿物(K+Na)/Ca的物质的量比均存在近似线性关系。 The influences of gasification temperature( 800-950 ℃) and blending ratio( 3 ∶1,1 ∶1,1 ∶3) on the isothermal CO_2 co-gasification reactivities of Shenfu bituminous coal char( SF char) and HTC char were investigated using an atmospheric thermogravimetric analyzer( TGA). Moreover,the activation energy of char gasification and its influence factors were explored. The results show that the greater surface area and the higher ash content are the main reasons for the high gasification reactivity of HTC char. The reactivities of mixtures with low HTC char proportion are more sensitive to temperature at low temperature range. The activation energy increases with the increase of carbon conversion,and the activation energy correlates well with the blending ratio and the molar ratio of active( K+Na)/Ca in the char.
出处 《燃料化学学报》 EI CAS CSCD 北大核心 2017年第10期1191-1199,共9页 Journal of Fuel Chemistry and Technology
基金 国家自然科学基金(21676091 21376081) 中央高校基本科研业务费(222201717004)资助~~
关键词 共气化 水热炭 反应特性 活化能 co- gasification coal hydrochar reactivity activation energy
  • 相关文献

参考文献3

二级参考文献34

  • 1杨帆,范晓雷,周志杰,刘海峰,龚欣,于遵宏.随机孔模型应用于煤焦与CO_2气化的动力学研究[J].燃料化学学报,2005,33(6):671-676. 被引量:25
  • 2张林仙,黄戒介,房倚天,王洋.中国无烟煤焦气化活性的研究——水蒸气与二氧化碳气化活性的比较[J].燃料化学学报,2006,34(3):265-269. 被引量:40
  • 3KITSUKA T,BAYARSAIKHAN B,SONOYAMA N.Behavior of inherent metallic species as a crucial factor for kinetics of steam gasification of char from coal pyrolysis[J].Energy Fuel,2007,21(2):387-394.
  • 4LI C Z.Some recent advances in the understanding of the pyrolysis and gasification behaviour of Victorian brown coal[J].Fuel,2007,86(12/13):1664-1683.
  • 5QUYN D M,HAYASHI J,LI C Z.Volatilisation of alkali and alkaline earth metallic species during the gasification of a Victorian brown coal in CO2[J].Fuel Process Technol,2005,86(12):1241-1251.
  • 6OHTSUKA Y,ASAMI K J.Ion-exchanged calcium from calcium carbonate and low-rank coals:High catalytic activity in steam gasification[J].Energy Fuel,1996,10(2):431-435.
  • 7HAYASHI J I,IWATSUKI M,MORISHITA K,TSUTSUMI A,LI C Z,CHIBA T.Roles of inherent metallic species in secondary reactions of tar and char during rapid pyrolysis of brown coals in a drop-tube reactor[J].Fuel,2002,81(15):1977-1987.
  • 8HUHN F,KLEIN J,JüNTGEN H.Investigations on the alkali-catalysed steam gasification of coal:Kinetics and interactions of alkali catalyst with carbon[J].Fuel,1983,62(2):196-199.
  • 9MOULIJN J A,KAPTEIJN F.Towards a unified theory of reactions of carbon with oxygen-contain molecules[J].Carbon,1995,33(8):1155-1165.
  • 10KARIMI A,SEMGINA N,GRAY M R.Kinetics of catalytic steam gasification of bitumen coke[J].Fuel,2011,90(3):1285-1291.

共引文献17

同被引文献11

引证文献2

二级引证文献10

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部