蓝藻水热碳化制备固体燃料：燃料特性及燃烧行为

周海云; 张琳; 王伟霞; 徐振佳; 袁思佳; 鲍业闯; 姚烘烨; 赵培涛

doi:10.12434/j.issn.2097-2547.20240269

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蓝藻水热碳化制备固体燃料：燃料特性及燃烧行为

碳资源转化利用 | 更新时间：2025-03-27

- 蓝藻水热碳化制备固体燃料：燃料特性及燃烧行为
- Fuel properties and combustion behavior of solid fuel prepared from blue-green algae through hydrothermal carbonization
- 低碳化学与化工 2025, 50(3): 82-88.
- 作者机构：
  
  1.江苏省环境工程技术有限公司，江苏南京 210019
  2.中国矿业大学低碳能源与动力工程学院，江苏徐州 221116
- 作者简介：
  
  周海云（1981—），硕士，高级工程师，研究方向为固体废物资源化处置利用，E-mail：joisen@163.com。
  赵培涛（1984—），博士，副教授，研究方向为有机废物资源化处置利用，E-mail：p.zhao@cumt.edu.cn。
- 基金信息：
  
  江苏省科技项目(BE2021627;BE2022604);江苏省生态环境科研项目(2022003);江苏省环保集团科技项目(JSEP-TZ-2021-2008-RE;JSEP-TZ-2022-1008-RE)
- DOI：10.12434/j.issn.2097-2547.20240269
  中图分类号： TQ038;X71;O642.3
- 收稿日期：2024-06-19，
  
  修回日期：2024-07-10，
  
  纸质出版日期：2025-03-25
- 稿件说明：
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周海云,张琳,王伟霞等.蓝藻水热碳化制备固体燃料：燃料特性及燃烧行为[J].低碳化学与化工,2025,50(03):82-88.

ZHOU Haiyun,ZHANG Lin,WANG Weixia,et al.Fuel properties and combustion behavior of solid fuel prepared from blue-green algae through hydrothermal carbonization[J].Low-carbon Chemistry and Chemical Engineering,2025,50(03):82-88.
周海云,张琳,王伟霞等.蓝藻水热碳化制备固体燃料：燃料特性及燃烧行为[J].低碳化学与化工,2025,50(03):82-88. DOI： 10.12434/j.issn.2097-2547.20240269.

ZHOU Haiyun,ZHANG Lin,WANG Weixia,et al.Fuel properties and combustion behavior of solid fuel prepared from blue-green algae through hydrothermal carbonization[J].Low-carbon Chemistry and Chemical Engineering,2025,50(03):82-88. DOI： 10.12434/j.issn.2097-2547.20240269.

摘要

蓝藻含水率高达99%以上，采用热解等热化学处理方法时需要对蓝藻进行干燥预处理，能耗极高。针对该问题，对含水率92.94%的蓝藻进行水热碳化（HTC）处理，研究了水热温度（180~260 ℃）、保温时长（0~3 h）和升温速率（1 ℃/min和1 ℃/6 min）对水热炭燃料特性及燃烧行为的影响。结果表明，通过水热碳化处理，蓝藻挥发分含量降低了9.92%~29.13%，灰分含量提高了8.54%~25.52%，固定碳含量提高了0.82%~5.26%。蓝藻水热炭燃烧可分为干燥脱水、挥发分脱除以及挥发分和固定碳燃烧3个阶段。水热碳化处理提高了蓝藻的着火温度（505~583 K）和燃尽温度（747~812 K），更加有利于蓝藻储存和运输。动力学分析结果表明，挥发分脱除及其燃烧阶段为一级反应，活化能为27.82~66.04 kJ/mol；固定碳燃烧阶段为二级反应，活化能为38.65~65.68 kJ/mol。本研究可为蓝藻资源化利用提供参考。

Abstract

The moisture content of blue-green algae is over 99%. when using thermochemical treatment methods such as pyrolysis

it is necessary to dry and pretreat the blue-green algae

which consumes a high amount of energy. To address this issue

hydrothermal carbonization (HTC) was applied to blue-green algae with a moisture content of 92.94%. The effects of hydrothermal temperature (180 ℃ to 260 ℃)

holding time (0 h to 3 h)

and heating rate (1 ℃/min and 1 ℃/6 min) on the fuel properties and combustion behavior of the resultant hydrochar were studied. The results indicate that HTC treatment reduces the volatile content of algae by 9.92% to 29.13%

increases ash content by 8.54% to 25.52%

and enhances fixed carbon content by 0.82% to 5.26%. Combustion of hydrochar from blue-green algae occurs in three stages: dehydration

volatile release

and combustion of volatiles and fixed carbon. HTC treatment elevates the ignition temperature (505 K to 583 K) and burnout temperature (747 K to 812 K)

which improves the storage and transport properties of the material. Kinetic analysis shows that the volatile release and its combustion stage follows a first-order reaction with an activation energy of 27.82 kJ/mol to 66.04 kJ/mol

while the fixed carbon combustion stage follows a second-order reaction with an activation energy of 38.65 kJ/mol to 65.68 kJ/mol. This study provides a reference for the resource utilization of blue-green algae.

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references

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