水蒸气气氛下生物质与聚丙烯共气化产气特性数值分析

叶垚; 张俊霞; 李阳; 王巧丽

doi:10.19912/j.0254-0096.tynxb.2021-0784

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太阳能学报 ›› 2023, Vol. 44 ›› Issue (1) : 353-360. DOI: 10.19912/j.0254-0096.tynxb.2021-0784

水蒸气气氛下生物质与聚丙烯共气化产气特性数值分析

叶垚, 张俊霞, 李阳, 王巧丽

作者信息 +

NUMERICAL ANALYSIS ON GAS PRODUCTION CHARACTERISTICS BASED ON CO-GASIFICATION OF BIOMASS AND POLYPROPYLENE IN STEAM

Ye Yao, Zhang Junxia, Li Yang, Wang Qiaoli

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摘要

搭建生物质与废塑料共气化动力学模型,并用实验数据对其进行验证。选用6种生物质和聚丙烯作为共气化反应物,以水蒸气为气化剂,计算气化温度在300~1000 ℃之间、气化压强在0.1~0.8 MPa之间、聚丙烯和松木锯末质量比例在0.5~2.5之间,以及不同生物质类型等对生物质和聚丙烯共气化产气特性的影响。结果表明：松木锯末气化中添加聚丙烯后,最高产气量和最大产气速率增加,最高产气总流量提高21.46%,最高产气速率提高4.64%,H₂和CO最高产量分别提高54.27%和79.51%;压强增加不利于提高共气化产气的H₂和CO含量,有利于提高CH₄含量;6种常见生物质和聚丙烯共气化产氢量大小顺序为：果皮>棉花秆≈玉米秸秆>杨树木屑>稻秆>条浒苔;聚丙烯掺混比率增加有利于提高H₂、CO和CH₄等组分产量。

Abstract

An kinetic model of biomass and polypropylene co-gasification was built, and the model was verified by experimental data, use six kinds of biomass and polypropylene as co-gasification reactants, steam as gasification agent. The effects of temperature between 300-1000 ℃, pressure between 0.1-0.8 MPa, mass ratio of polypropylene and pine sawdust between 0.5-2.5, and different biomass types on the co-gasification characteristics of biomass and polypropylene were calculated. After the addition of polypropylene in the gasification of pine sawdust, the maximum gas yield and maximum gas yield rate increased, the maximum total gas flow rate increased by 21.46%, the maximum gas yield rate increased by 4.64%, and the maximum H₂ and CO yields increased by 54.27% and 79.51%, respectively. The increase of pressure is not conducive to the increase of H₂ and CO content in co-gasification gas, but is beneficial to the increase of CH₄ content. The order of H₂ content from co-gasification of six types biomass and polypropylene is, peel > cotton stalk≈ corn straw>poplar sawdust>rice straw>Enteromorpha prolifera. It is beneficial to increase the yield of H₂, CO and CH₄ on increasing the blending ratio of polypropylene.

导出引用

叶垚, 张俊霞, 李阳, 王巧丽. 水蒸气气氛下生物质与聚丙烯共气化产气特性数值分析[J]. 太阳能学报. 2023, 44(1): 353-360 https://doi.org/10.19912/j.0254-0096.tynxb.2021-0784

Ye Yao, Zhang Junxia, Li Yang, Wang Qiaoli. NUMERICAL ANALYSIS ON GAS PRODUCTION CHARACTERISTICS BASED ON CO-GASIFICATION OF BIOMASS AND POLYPROPYLENE IN STEAM[J]. Acta Energiae Solaris Sinica. 2023, 44(1): 353-360 https://doi.org/10.19912/j.0254-0096.tynxb.2021-0784

中图分类号： TK6

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