The pyrolysis kinetics is very important for the development of biomass thermal chemical conversion technology.By means of the TG-DTG analysis,the pyrolysis behavior and kinetics of corn stalk were investigated with t...The pyrolysis kinetics is very important for the development of biomass thermal chemical conversion technology.By means of the TG-DTG analysis,the pyrolysis behavior and kinetics of corn stalk were investigated with the heating rate from 5℃/min to 100℃/min.The experimental data reveal that the kinetic parameters are much influenced by the operating conditions.And the activation energy of pyrolysis reaction increases with heating rates.Through the kinetics compensation processing,the apparent kinetic parameters of pyrolysis are obtained with the activation energy of 66.5kJ/mol and the frequency factor of 3165s-1.A kinetic model is validated for the corn stalk pyrolysis,which can well fit the experimental results.Moreover,some fundamental data of pyrolysis is provided,which is much valuable for the understanding of process mechanism.展开更多
利用加压水洗提纯沼气小试实验装置,研究了进水流量、进气流量、吸收压力和吸收温度对沼气加压水洗脱碳过程中CO2去除率、CH4回收率和CO2饱和度等参数的影响。结果表明：增大吸收压力和降低吸收温度可显著提升加压水洗脱碳效果,增大进...利用加压水洗提纯沼气小试实验装置,研究了进水流量、进气流量、吸收压力和吸收温度对沼气加压水洗脱碳过程中CO2去除率、CH4回收率和CO2饱和度等参数的影响。结果表明：增大吸收压力和降低吸收温度可显著提升加压水洗脱碳效果,增大进水流量和减小进气流量可以提高CO2去除率和产品气的纯度;CO2去除率越高,CH4回收率和产气率越低;当进水流量为100 m L/min、进气流量为800 m L/min、吸收温度为10℃、吸收压力为0.8~1.0 MPa时,产品气中的CO2含量可控制在3%以下,能够满足车用压缩天然气技术标准的要求。展开更多
文摘The pyrolysis kinetics is very important for the development of biomass thermal chemical conversion technology.By means of the TG-DTG analysis,the pyrolysis behavior and kinetics of corn stalk were investigated with the heating rate from 5℃/min to 100℃/min.The experimental data reveal that the kinetic parameters are much influenced by the operating conditions.And the activation energy of pyrolysis reaction increases with heating rates.Through the kinetics compensation processing,the apparent kinetic parameters of pyrolysis are obtained with the activation energy of 66.5kJ/mol and the frequency factor of 3165s-1.A kinetic model is validated for the corn stalk pyrolysis,which can well fit the experimental results.Moreover,some fundamental data of pyrolysis is provided,which is much valuable for the understanding of process mechanism.
文摘利用加压水洗提纯沼气小试实验装置,研究了进水流量、进气流量、吸收压力和吸收温度对沼气加压水洗脱碳过程中CO2去除率、CH4回收率和CO2饱和度等参数的影响。结果表明：增大吸收压力和降低吸收温度可显著提升加压水洗脱碳效果,增大进水流量和减小进气流量可以提高CO2去除率和产品气的纯度;CO2去除率越高,CH4回收率和产气率越低;当进水流量为100 m L/min、进气流量为800 m L/min、吸收温度为10℃、吸收压力为0.8~1.0 MPa时,产品气中的CO2含量可控制在3%以下,能够满足车用压缩天然气技术标准的要求。
