玉米秸秆与污泥的堆肥预处理时间及气化温度对气化的影响

王彩玉; 孟姝妍; 郭祥; 张颖秀; 宋英今; 陈冠益

doi:10.13205/j.hjgc.202610018

玉米秸秆与污泥的堆肥预处理时间及气化温度对气化的影响

doi: 10.13205/j.hjgc.202610018

1. 天津大学环境科学与工程学院, 天津 300072;
2. 天津商业大学, 天津 300134

基金项目:

天津市重点研发计划科技支撑重点项目”多源生物质废弃物燃气化创新技术研究”（2019FV-0007）

详细信息

作者简介:
王彩玉（1995—），女，主要研究方向为生物质资源化利用。wangcaiyu19951003@163.com

通讯作者:
宋英今（1972—），女，副教授，主要研究方向为生物质资源化利用。yinjin@tju.edu.cn

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出版历程
- 收稿日期: 2025-06-28
- 网络出版日期: 2026-11-10

Effect of composting pretreatment time of corn stalks and sewage sludge and gasification temperature on gasification

1. College of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China;
2. Tianjin University of Commerce, Tianjin 300134, China

摘要

摘要: 改善气体产物质量是有机固体废物热解气化的瓶颈，研究采用堆肥预处理的方法以期提高合成气的产氢量和低位热值（LHV）。首先分析了玉米秸秆（CS）、污泥（SS）及两者混合物在堆肥时间为0，7，14，21，28，35 d（C0、C1、C2、C3、C4和C5）下的物理性质和化学结构变化，然后测定了CS、SS和不同堆肥时间混合物在不同气化温度（800，900，1000 ℃）下的产氢量与LHV。多项表征和物性分析表明：堆肥（C1—C5）较不堆肥（C0）处理的木质素含量均有提高。气化温度为900 ℃时，与CS和C0相比，C1的H₂含量（9.66%，以体积分数计）分别提高了2.14和4.53百分点，LHV（6.17 MJ/Nm³）分别提高了0.60，1.37 MJ/Nm³；而C1—C5无明显差异。温度为900 ℃时的气化效果优于800，1000 ℃。研究证明堆肥预处理有效促进了CS和SS的气化，为今后的应用提供了理论和实践参考。
- 堆肥 /
- 玉米秸秆 /
- 污泥 /
- 气化 /
- 低位热值
Abstract: Improving gas products' quality is the bottleneck of the pyrolytic gasification of organic solid waste. In this study， an experimental method of composting pretreatment was proposed to increase hydrogen production and lower heating value （LHV） of the syngas. Firstly， the physical properties and chemical structures of corn stalks （CS）， sewage sludge （SS）， and their mixtures under different composting times （C0： 0 d， C1： 7 d， C2： 14 d， C3： 21 d， C4： 28 d， and C5： 35 d） were analyzed. Then， the hydrogen production and LHV of CS， SS， and their mixtures at different gasification temperatures （800， 900， and 1000 ℃） were measured. The characterization and physical property analysis of the compost showed that the lignin content of composted （C1 to C5） was higher than that of non-composted （C0）. At a gasification temperature of 900 ℃， compared with CS and C0， the H₂ concentration in C1 （9.66%， volume ratio） increased by 2.14 and 4.53 percentage points， and the LHV of C1 （6.17 MJ/Nm³） increased by 0.60 MJ/Nm³ and 1.37 MJ/Nm³， respectively； there was no significant difference among treatment group C1 to C5. The gasification effect at 900 ℃ was better than that at 800 ℃ and 1000 ℃. This study proved that composting pretreatment effectively promoted the gasification of CS and SS， which provided a theoretical and practical reference for future applications.
- compost /
- corn stalks /
- sewage sludge /
- gasification /
- low heating value

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