| 油漆废渣化学链气化特性及动力学行为 |
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| 引用本文： | 张杰,张博,郭伟,伍松,谢涛,杨伯伦,吴志强. 油漆废渣化学链气化特性及动力学行为[J]. 石油学报(石油加工), 2020, 36(6): 1273-1284. DOI: 10.3969/j.issn.1001-8719.2020.06.018 |
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| 作者姓名： | 张杰 张博 郭伟 伍松 谢涛 杨伯伦 吴志强 |
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| 作者单位： | 西安交通大学 化学工程与技术学院 陕西省能源化工过程强化重点实验室，陕西 西安 710049 |
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| 基金项目： | 国家自然科学基金项目（22038011, 51976168）资助 |
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| 摘 要： | 为探究化学链气化技术处理油漆废渣的可行性,通过热重分析仪以及管式炉-在线质谱仪联用研究了以Fe2O3为载氧体的油漆废渣化学链气化特性及动力学行为。热重分析结果表明:随着Fe2O3掺混比例的增加,掺混Fe2O3的油漆废渣热解气化时的总体质量损失量会减少。在升温速率为40℃/min时,当油漆废渣中Fe2O3掺混比例(质量分数)分别为10%、30%、50%时,最大质量损失速率相应分别为-27.23%/min、-23.39%/min和-17.12%/min,低于未掺混Fe2O3的油漆废渣热解时的最大质量损失速率-27.56%/min;油漆废渣化学链气化平均活化能分别为192.31、204.81、166.98 kJ/mol,明显低于未掺混Fe2O3的油漆废渣热解时的平均活化能223.29 kJ/mol。管式炉-质谱联用分析结果表明:反应...
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| 关 键 词： | 化学链气化 有机固体废物 油漆废渣 动力学 产物分布 |
| 收稿时间： | 2020-06-30 |
Chemical Looping Gasification Characteristics and Kinetic Behavior of Paint Slag |
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| ZHANG Jie,ZHANG Bo,GUO Weigh,WU Song,XIE Tao,YANG Bolun,WU Zhiqiang. Chemical Looping Gasification Characteristics and Kinetic Behavior of Paint Slag[J]. Acta Petrolei Sinica (Petroleum Processing Section), 2020, 36(6): 1273-1284. DOI: 10.3969/j.issn.1001-8719.2020.06.018 |
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| Authors: | ZHANG Jie ZHANG Bo GUO Weigh WU Song XIE Tao YANG Bolun WU Zhiqiang |
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| Affiliation: | Shaanxi Key Laboratory of Energy Chemical Process Intensification, School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an 710049, China |
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| Abstract: | To explore the feasibility of chemical looping gasification (CLG) technology in the treatment of paint slag, experiments were carried out by thermogravimetry, tube furnace and mass spectrometry. Based on the Fe2O3 carrier, the CLG characteristics of paint slag and the kinetic behavior of gas product formation were studied. Thermogravimetric analysis shows that with the increase of Fe2O3 blending ratio, the total mass loss of paint waste slag blended with Fe2O3 during pyrolysis and gasification is reduced. When the heating rate is 40 ℃/min, the maximum mass loss rate of Fe2O3 in the paint slag is -27.23%/min, -23.39%/min and -17.12%/min, respectively, which is significantly lower than that of paint waste slag pyrolysis alone (-27.56%/min). When the mass fraction of Fe2O3 is 10%, 30% and 50%, the average activation energy of CLG of paint slag is 192.31, 204.81 and 166.98 kJ/mol, respectively, which is significantly lower than the average activation energy (223.29 kJ/mol) when the paint slag is pyrolyzed alone. The results of tube furnace mass spectrometry show that when the reaction temperature is 800 ℃, the low heating value of the gas-phase product is 7.24, 7.36 and 6.04 MJ/m3 when the Fe2O3 mass fraction in the paint slag is 10%, 30% and 50%, respectively. The low heating value of the gas-phase product is obviously lower than the low heating value of the gas-phase product (8.76 MJ/m3) when the paint slag is pyrolyzed alone. The addition of Fe2O3 will reduce the low heating value of gas phase products. When Fe2O3 mass fraction is 50%, the activation energies of CO, CH4 and H2 generated by CLG of paint slag are 22.67, 31.94, 18.99 kJ/mol, respectively, which are significantly lower than those of the single pyrolysis of paint slag. TiO2 in paint slag and Fe3O4 after reaction mainly stay in solid residue, which can be recovered by a magnetic separation device. |
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| Keywords: | chemical looping gasification organic solid waste paint slag kinetics product disribution |
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