
东北大学学报(自然科学版) ›› 2025, Vol. 46 ›› Issue (12): 124-131.DOI: 10.12068/j.issn.1005-3026.2025.20240150
• 资源与土木工程 • 上一篇
姚锡文, 张宏柏, 许开立, 张雷雷
收稿日期:2024-07-15
出版日期:2025-12-15
发布日期:2026-02-09
通讯作者:
许开立
作者简介:姚锡文(1987—),男,山东五莲人,东北大学副教授
基金资助:Xi-wen YAO, Hong-bai ZHANG, Kai-li XU, Lei-lei ZHANG
Received:2024-07-15
Online:2025-12-15
Published:2026-02-09
Contact:
Kai-li XU
摘要:
采用可控气氛管式炉研究煤与生物质在CO2气氛下气化过程中的产气规律及反应动力学特性.研究发现,煤与生物质在N2气氛下热解分为3个阶段:脱水(30~210 ℃)、急剧热解(210~400 ℃)和缓慢热解(400~1 000 ℃);在CO2气氛下气化分为4个阶段:脱水(30~210 ℃)、挥发分释放(210~400 ℃)、缓慢失重(400~660 ℃)和Boudouard反应(660~1 000 ℃);CO2气氛下气化转化率约85%,高于N2气氛下的53%;CO2气氛下的气化反应较N2气氛下所需活化能更高,但反应速率较快;煤与生物质在CO2气氛下气化产生的气体主要包括CO,CO2,CH4和H2;800 ℃时CO气体再次生成,说明高温下CO2作为氧化剂与碳发生Boudouard反应;CO2抑制CH4,H2和C m H n 这些含氢高热值气体的生成.
中图分类号:
姚锡文, 张宏柏, 许开立, 张雷雷. 燃煤耦合生物质在CO2气氛下共气化产气特性及动力学研究[J]. 东北大学学报(自然科学版), 2025, 46(12): 124-131.
Xi-wen YAO, Hong-bai ZHANG, Kai-li XU, Lei-lei ZHANG. Study on Gas Production Characteristics and Kinetics of Coal and Biomass Co-gasification Under CO2 Atmosphere[J]. Journal of Northeastern University(Natural Science), 2025, 46(12): 124-131.
表1 实验样品的工业分析和元素分析(质量分数) (%)
Table 1 Industrial analysis and elemental analysis of experimental samples(mass fraction)
| 气氛 | 温度/℃ | β/(℃·min-1) | 拟合方程 | 活化能 E/(kJ·mol-1) | 频率因子 A/min-1 | 线性指数 R2 |
|---|---|---|---|---|---|---|
| CO2 | 790~1 000 | 10 | 39.114 | 9.72×105 | 0.974 | |
| N2 | 240~390 | 10 | 30.588 | 1.64×105 | 0.998 |
表2 N2和CO2气氛下煤与生物质动力学参数
Table 2 Kinetic parameters of coal and biomass under N2 and CO2 atmospheres
| 气氛 | 温度/℃ | β/(℃·min-1) | 拟合方程 | 活化能 E/(kJ·mol-1) | 频率因子 A/min-1 | 线性指数 R2 |
|---|---|---|---|---|---|---|
| CO2 | 790~1 000 | 10 | 39.114 | 9.72×105 | 0.974 | |
| N2 | 240~390 | 10 | 30.588 | 1.64×105 | 0.998 |
| CO2体积分数/% | 气体体积分数/% | QLHV | |||
|---|---|---|---|---|---|
| CO | CH4 | C m H n | H2 | MJ·m-3 | |
| 0 | 13.92 | 28.41 | 21.36 | 25.18 | 2.74 |
| 5 | 45.07 | 13.26 | 8.11 | 10.55 | 1.64 |
| 10 | 47.60 | 8.09 | 4.58 | 6.78 | 1.24 |
| 15 | 45.99 | 6.57 | 3.92 | 5.26 | 1.11 |
| 20 | 43.17 | 5.07 | 2.90 | 3.73 | 0.94 |
| 25 | 39.84 | 4.52 | 2.90 | 2.68 | 0.86 |
表3 不同CO2体积分数对燃气组分和热值的影响 (gas composition and calorific value)
Table 3 Effect of different CO2 volume fraction on
| CO2体积分数/% | 气体体积分数/% | QLHV | |||
|---|---|---|---|---|---|
| CO | CH4 | C m H n | H2 | MJ·m-3 | |
| 0 | 13.92 | 28.41 | 21.36 | 25.18 | 2.74 |
| 5 | 45.07 | 13.26 | 8.11 | 10.55 | 1.64 |
| 10 | 47.60 | 8.09 | 4.58 | 6.78 | 1.24 |
| 15 | 45.99 | 6.57 | 3.92 | 5.26 | 1.11 |
| 20 | 43.17 | 5.07 | 2.90 | 3.73 | 0.94 |
| 25 | 39.84 | 4.52 | 2.90 | 2.68 | 0.86 |
| [1] | Li R P; Zhang J L, Wang G W, et al. Study on CO2 gasification reactivity of biomass char derived from high-temperature rapid pyrolysis [J]. Applied Thermal Engineering, 2017, 121: 1022-1031. |
| [2] | Zhang Z H, Yi B J, Sun Z S, et al. Reaction process and characteristics for coal char gasification under changed CO2/H2O atmosphere in various reaction stages [J]. Energy, 2021, 229: 120677. |
| [3] | Asadullash M. Biomass gasification gas cleaning for downstream applications: a comparative critical review [J]. Renewable and Sustainable Energy Reviews, 2014, 40: 118-132. |
| [4] | Yao X W, Zhou H D, Zhao Z C, et al. Research on dependence of concentration and transformation of inorganics in biomass gasification ashes upon particle size classification [J]. Powder Technology, 2020, 371: 1-12. |
| [5] | Ding G C, He B S, Yao H F, et al. Synergistic effect, kinetic and thermodynamics parameters analyses of co-gasification of municipal solid waste and bituminous coal with CO2 [J].Waste Management, 2021, 119, 342-355. |
| [6] | Tong S, Sun Y M, Li X, et al., Gas-pressurized torrefaction of biomass wastes: co-gasification of gas-pressurized torrefied biomass with coal [J]. Bioresource Technology, 2021, 321, 124505. |
| [7] | Wei J T, Ding L, Gong Y, et al. High‐temperature char gasification of anthracite/petroleum coke: using biomass leachate as cheap-effective additive [J]. Asia-Pacific Journal of Chemical Engineering, 2020, 15(4): e2454. |
| [8] | Zhou T X, Zhang W W, Shen Y J, et al. Progress in the change of ash melting behavior and slagging characteristics of co-gasification of biomass and coal: a review [J]. Journal of the Energy Institute, 2023, 111: 101414. |
| [9] | 王晓蕾, 张乾, 杨宇晶,等. 生物质与石油焦非等温共气化反应特性及动力学[J]. 太原理工大学学报, 2025, 56(4): 631-638. |
| (Wang Xiao-lei, Zhang Qian, Yang Yu-jing, et al Non-isothermal co-gasification behavior and kinetic analysis of biomass with petroleum coke [J]. Journal of Taiyuan University of Technology, 2025, 56(4): 631-638) | |
| [10] | 张恒, 王勤辉, 梁晓锐, 等. CO2气氛下煤/生物质混合热解过程氮转化特性实验[J]. 热力发电 2019, 48(4): 8-14. |
| Zhang Heng, Wang Qin-hui, Liang Xiao-rui, et al. Experimental study on transformation characteristics of nitrogen during coal/biomass co-pyrolysis in CO2 atmosphere [J]. Thermal Power Generation, 2019, 48(4): 8-14. | |
| [11] | Hu J H, Si Y H, Yang H P, et al., Influence of volatiles-char interactions between coal and biomass on the volatiles released, resulting char structure and reactivity during co-pyrolysis [J]. Energy Conversion and Management,2017, 152: 229-238. |
| [12] | Abdalazeez A, Li T L, Wang W J, et al. A brief review of CO2 utilization for alkali carbonate gasification and biomass/coal co-gasification: reactivity, products and process [J]. Journal of CO 2 Utilization , 2021, 43: 101370. |
| [13] | Zhou H D, Xu K L, Yao X W, et al. Investigation of the co-pyrolysis characteristics and gas emission properties of spent bleaching earth and biomass in a thermogravimetric analyser and a fixed bed reactor [J]. Process Safety and Environmental Protection, 2024, 189: 736-744. |
| [14] | Hou A, Wang Z, Song W L, et al. Thermogravimetric analysis on gasification reactivity of Hailar lignite: influence of inherent mineral matters and external ash [J]. Journal of Thermal Analysis and Calorimetry, 2012, 109 (1): 337-343. |
| [15] | 姚锡文, 许开立, 闫放, 等. 不同农业生物质废弃物的热解特性及动力学对比[J].东北大学学报(自然科学版), 2016, 37(11): 1593-1597. |
| Yao Xi-wen, Xu Kai-li, Yan Fang, et al. Comparative study on pyrolysis characteristics and dynamics characteristics of different agriculture biomass wastes [J]. Journal of Northeastern University(Natural Science), 2016,37(11): 1593-1597. | |
| [16] | 周浩东. 生物质热解气化特性及残余灰分沾污结渣规律研究[D].沈阳:东北大学, 2021. |
| Zhou Hao-dong. Investigation on pyrolysis and gasification characteristics of biomass and on fouling and slagging law of residual ashes [D]. Shenyang: Northeastern University, 2021. | |
| [17] | 徐卫, 孙宁, 应浩, 等. 木屑炭高温CO2气化特性研究[J]. 生物质化学工程, 2017, 51 (5): 49-53. |
| Xu Wei, Sun Ning, Ying Hao, et al. Characteristics of high-temperature carbon dioxide gasification of sawdust-derived char [J]. Biomass Chemical Engineering, 2017,51(5):49-53. |
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