快速和慢速热解对棉秆生物炭理化特性及土壤持水量的影响

亚力昆江·吐尔逊; 周术林; 张凯悦; 钟梅; 代正华; 李建; 袁万能; 许晓兵; 李涛

doi:10.13568/j.cnki.651094.651316.2023.09.13.0002

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快速和慢速热解对棉秆生物炭理化特性及土壤持水量的影响

化学与化工 | 更新时间：2026-01-21

- 快速和慢速热解对棉秆生物炭理化特性及土壤持水量的影响
- 快速和慢速热解对棉秆生物炭理化特性及土壤持水量的影响
- 新疆大学学报（自然科学版中英文） 2024年41卷第4期页码：435-443
- 作者机构：
  
  1. 新疆大学化工学院新疆煤炭清洁转化与化工过程重点实验室
  2. 宝钢集团新疆八一钢铁有限公司
- 作者简介：
- 基金信息：
  
  国家自然科学基金“低阶煤原位催化热解联产轻质焦油和富氢气体及其反应调控机理”（22068036）;新疆维吾尔自治区重点实验室开放课题“低阶煤催化热解耦合焦油原位催化提质及反应机制”（2021D04013）;新疆维吾尔自治区重点研发项目新疆大学子课题“生物质一体化预处理及与煤共气化技术研究”（2022B03026-1）
- DOI：10.13568/j.cnki.651094.651316.2023.09.13.0002
  中图分类号： S156;TQ127.11
- 纸质出版：2024
- 稿件说明：
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[1]亚力昆江·吐尔逊,周术林,张凯悦,等.快速和慢速热解对棉秆生物炭理化特性及土壤持水量的影响[J].新疆大学学报(自然科学版中英文),2024,41(04):435-443.
[1]亚力昆江·吐尔逊,周术林,张凯悦,等.快速和慢速热解对棉秆生物炭理化特性及土壤持水量的影响[J].新疆大学学报(自然科学版中英文),2024,41(04):435-443. DOI： 10.13568/j.cnki.651094.651316.2023.09.13.0002.

DOI：10.13568/j.cnki.651094.651316.2023.09.13.0002.

摘要

以新疆棉秆为原料，在300～700℃下利用快速和慢速热解方式制备了生物炭，研究了快速和慢速热解对棉秆生物炭形貌、表面官能团、pH值、元素组成的影响．利用室内土柱试验，研究了不同条件下制备的生物炭对土壤持水量的影响．结果表明：1）随着热解温度的升高，生物炭产率下降，p H值提高，孔隙度增加．快速热解生物炭具有孔隙发达、芳香性高、稳定性强的优点．2）土壤持水量随着生物炭添加量和热解温度的升高而提高．生物炭添加量为0.03 g/g时，土壤持水量分别为51.7%和49.7%，比未添加生物炭提高了32.5%和27.4%.3）添加生物炭土壤15 d后保水量仍有40.3%，远高于纯土壤，且添加快速热解生物炭的土壤保水量高于慢速热解生物炭．

Abstract

Biochar was prepared by fast and slow pyrolysis methods using Xinjiang cotton stalk as biomass at the pyrolysis temperature of 300～700 ℃. The effects of fast and slow pyrolysis methods on the morphology

structure

functional groups

p H value

and elemental composition of biochar have been studied. The effect of biochar prepared under different conditions on soil moisture capacity was studied using indoor soil column experiments.The results showed that: 1) The biochar yield decreased

the pH value and the porosity increased with increasing pyrolysis temperature. Fast pyrolysis biochar has the advantages of well-developed pores

high aromaticity

and strong stability. 2) The soil water holding capacity increases with the increase of biochar addition and pyrolysis temperature. When the amount of biochar addition was 0.03 g/g

the soil water holding capacity was 51.7% and49.7%

respectively

which was 32.5% and 27.4% higher than that without biochar. 3) The water retention of soil with biochar addition is much higher than that of pure soil. The soil added with biochar still retains 40.3% water retention after 15 days. The soil water retention of biochar added soil prepared by fast pyrolysis is higher than that of slow pyrolysis.

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references

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