Influence of AAEM on kinetic characteristics of rice husk pyrolysis in micro-fluidized bed reactor

GUO Feiqiang; LIU Yuan; GUO Chenglong; DONG Yuping

doi:10.11949/j.issn.0438-1157.20170300

您当前的位置：

首页 >

文章列表页 >

Influence of AAEM on kinetic characteristics of rice husk pyrolysis in micro-fluidized bed reactor

更新时间：2025-12-10

- Influence of AAEM on kinetic characteristics of rice husk pyrolysis in micro-fluidized bed reactor
- CIESC Journal Issue 10, Pages: 3795-3804(2017)
- 作者机构：
  
  1. 中国矿业大学电气与动力工程学院,江苏,徐州,221116
  2. 山东大学机械工程学院,山东,济南,250061
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20170300
  CLC： Q056.1
- Online First：05 October 2017，
  
  Published：05 October 2017
- 稿件说明：
移动端阅览
GUO Feiqiang, LIU Yuan, GUO Chenglong, et al. Influence of AAEM on kinetic characteristics of rice husk pyrolysis in micro-fluidized bed reactor[J]. CIESC Journal, 2017, (10): 3795-3804.
DOI：

GUO Feiqiang, LIU Yuan, GUO Chenglong, et al. Influence of AAEM on kinetic characteristics of rice husk pyrolysis in micro-fluidized bed reactor[J]. CIESC Journal, 2017, (10): 3795-3804. DOI： 10.11949/j.issn.0438-1157.20170300.

摘要

通过微型流化床反应分析仪（MFBRA）研究两种典型碱金属和碱土金属（AAEM）钠与镁对稻壳热解气体生成动力学的影响，并采用模型积分法求解出4种主要气体组分（H2、CO、CH4与CO2）的生成动力学参数。结果表明：不同气体组分具有不同的开始与终止释放时间，说明4种气体对应不同的生成路径和机理，高温条件和添加钠、镁离子均会提高气体生成的反应速率。采用典型气固反应动力学模型对气体生成过程进行了拟合求解，获取了气体组分在不同条件下的最概然机理函数。通过最概然机理函数求得了4种气体生成动力学参数，对比发现钠离子与镁离子降低了H2、CO、CH4与CO2生成反应的表观活化能，其中CO受钠离子和镁离子的影响最为显著，进而从活化能角度证实了两种金属离子对于生物质热解特性的影响。

Abstract

The influence of two typical alkali and alkaline earth metal (AAEM)

sodium and magnesium

on the gas releasing kinetics during rice husk high-temperature pyrolysis was investigated in a micro-fluidized bed reactor (MFBRA).Reaction kinetics for generating four main gases (H2

CH4 and CO2) was deduced based on universal integral method.Results indicated that different gas components had different times to start and end the gas releasing process

indicating different evolution routes and mechanics for generating these gas species.The conversion rate of four gases could be promoted at higher temperature or with the presence of AAEM.The gas releasing process was calculated by linear fitting method based on typical gas-solid reaction models and the most probable mechanism functions of four gas components were obtained at different conditions.The kinetic parameters of gaseous products calculated by most probable mechanism functions indicated that the resulting apparent activation energies for four gases decreased in presence of sodium and magnesium.Particularly

the effect of the two metal irons on the formation of CO was more obvious compared with the other gas species.From this study

the influence of two metal ions on biomass pyrolysis characteristics was confirmed on the basis of the variation of the activation energy.

关键词

Keywords

references

Views

136

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Thermo-oxidative degradation characteristics of TPT backsheet from end-of-life photovoltaic modules

Revealing mechanisms of tar formation and char structural evolution during lignin pyrolysis from microscopic perspective

Progress of molten salt-assisted thermochemical high-value conversion of biomass

Waste sponge derived carbon-based solid acids for levoglucosanone production via cassava residue pyrolysis

Effect of the component evolution of Chinese fir sawdust on wood vinegar during hydrothermal process

Related Author

WANG Shangming

LI Xiaofeng

FANG Qiuyu

WANG Qiang

ZHANG Guoping

CHEN Yunan

CHEN Bin

ZHANG Min

Related Institution

State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University

State Key Laboratory of Mesoscience and Engineering, Institute of Process Engineering, Chinese Academy of Sciences

Innovation Academy for Green Manufacture, Chinese Academy of Sciences

School of Energy and Power Engineering, Huazhong University of Science and Technology

EU Institute for Clean and Renewable Energy, Huazhong University of Science and Technology

⁰