Long Chen, Sen Lin, Jiayu Liang, Fatih Evrendilek, Yao He, Jingyong Liu
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引用次数: 0
摘要
摘要 第二代(非食用)生物质的燃烧可用于共同提高能源、环境质量和产品附加值。本研究采用热分析方法对枸杞(Lycium barbarum L.,LBL)在N2/O2和CO2/O2气氛中燃烧的能量、环境(气灰反应)和操作性能进行了表征和联合优化。加热速率的增加使反应更加剧烈,并在热重曲线上延迟了反应时间。二氧化碳延迟了反应。活化能在 166.95-177.45 kJ/mol 之间。检测到的主要气态产物有 H2O、CH4、CO2、CO、C=O、C-O(H)、C=C 和 NH3。N2/O2 气氛和 ≥ 671 °C 温度范围的最佳组合同时将气态产物的排放量降至最低。LBL 灰属于 K 型灰,具有严重的结渣倾向和较高的沉积风险。CO2/O2气氛加剧了结渣现象。
Combustion behaviors of Lycium barbarum L.: Kinetics, thermodynamics, gas emissions, and optimization
Abstract
The combustion of second-generation (non-edible) biomass may be leveraged to jointly improve energy, environmental quality, and value-added products. This study used thermoanalytical methods to characterize and jointly optimize the energetic, environmental (gas-to-ash responses), and operational performances of the combustion of Lycium barbarum L. (LBL) in the N2/O2 and CO2/O2 atmospheres. The increased heating rate rendered the reactions more intense and delayed them in the thermogravimetric curve. CO2 delayed the reactions. Activation energy was in the range of 166.95-177.45 kJ/mol. The main gaseous products detected were H2O, CH4, CO2, CO, C=O, C-O(H), C=C and NH3. The optimal combination of the N2/O2 atmosphere and the range of ≥ 671 °C simultaneously minimized the emissions of the gaseous products. LBL ash was of the K type and had a serious slagging tendency and high deposition risk. The CO2/O2 atmosphere aggravated the slagging.
期刊介绍:
Biomass Conversion and Biorefinery presents articles and information on research, development and applications in thermo-chemical conversion; physico-chemical conversion and bio-chemical conversion, including all necessary steps for the provision and preparation of the biomass as well as all possible downstream processing steps for the environmentally sound and economically viable provision of energy and chemical products.