紧凑式三室RTO系统处理乙酸乙酯废气性能的实验研究

doi:10.11949/0438-1157.20241224

化工学报 ›› 2025, Vol. 76 ›› Issue (7): 3585-3595.DOI: 10.11949/0438-1157.20241224

紧凑式三室RTO系统处理乙酸乙酯废气性能的实验研究

杨鹏¹(), 尤万里², 凌忠钱¹(), 曾宪阳¹, 李允超¹, 林佳一¹, 王丽建³^,⁴, 袁定琨¹

^1.中国计量大学能源环境与安全工程学院，浙江杭州 310018
^2.杭州优业环保科技有限公司，浙江杭州 310015
^3.浙江省质量科学研究院，浙江杭州 310018
^4.全省数字精密测量技术研究重点实验室，浙江杭州 310018

收稿日期:2024-10-31 修回日期:2025-03-13 出版日期:2025-07-25 发布日期:2025-08-13
通讯作者: 凌忠钱
作者简介:杨鹏（1998—），男，硕士研究生，s22020804072@cjlu.edu.cn
基金资助:
浙江省“尖兵”“领雁”研发攻关计划项目(2023C03125);浙江省市场监督管理局科技计划项目(ZD2024006);浙江省自然科学基金项目(LQN25E060007)

Experimental study on performance of compact three-chamber RTO system for treating waste gas containing ethyl acetate

Peng YANG¹(), Wanli YOU², Zhongqian LING¹(), Xianyang ZENG¹, Yunchao LI¹, Jiayi LIN¹, Lijian WANG³^,⁴, Dingkun YUAN¹

^1.College of Energy Environment and Safety Engineering, China Jiliang University, Hangzhou 310018, Zhejiang, China
^2.Hangzhou Youye Environmental Protection Technology Co. , Ltd. , Hangzhou 310015, Zhejiang, China
^3.Zhejiang Institute of Quality Sciences，Hangzhou 310018, Zhejiang, China
^4.Zhejiang Key Laboratory of Digital Precision Measurement Technology Research, Hangzhou 310018, Zhejiang, China

Received:2024-10-31 Revised:2025-03-13 Online:2025-07-25 Published:2025-08-13
Contact: Zhongqian LING

摘要/Abstract

摘要：

挥发性有机化合物（VOCs）的排放问题日益凸显，对生态环境及公众健康构成了严重威胁。针对治理VOCs排放问题自行设计并搭建了进气风量为200 m³/h、尺寸为2915 mm×1150 mm×2200 mm的紧凑式三室RTO实验装置，以制药行业中排放量占比较大的乙酸乙酯作为研究对象，探究在不同工况条件下紧凑式RTO装置处理乙酸乙酯废气的去除效率，热效率以及蓄热室、氧化室和出口的温度特性。实验结果表明，氧化室温度在750~850℃范围内，RTO系统对VOCs的去除效率大于97%。此外，进气风量降低可以提高乙酸乙酯的氧化分解效率，吹扫风量增加亦能提升乙酸乙酯的去除效果，阀门换向时间会影响蓄热室温度和氧化室内压力，进而影响系统的稳定性和热效率。本设计开发的紧凑式三室RTO装置在处理乙酸乙酯废气方面表现出高效性能，去除率在97%~99%之间，热效率超过96%。

关键词: 挥发性有机化合物, 三室RTO, 反应器, 氧化, 污染, 废物处理, 环境

Abstract:

The emission of volatile organic compounds (VOCs) has emerged as an increasingly prominent environmental concern, posing significant threats to both ecological systems and public health. Aiming at the problem of VOCs emission, this study designed and built a compact three-chamber RTO device with an air intake volume of 200 m³/h and a size of 2915 mm×1150 mm×2200 mm. The experimental investigation focused on ethyl acetate, a predominant VOC emission in the pharmaceutical industry, as the target compound. The study examined the removal efficiency, thermal efficiency, and temperature characteristics of the heat storage chamber, oxidation chamber, and outlet under various operating conditions. Experimental results demonstrated that the RTO system achieved VOCs removal efficiencies exceeding 97% when the oxidation chamber temperature ranged from 750℃ to 850℃. Furthermore, reducing the intake airflow enhanced the oxidation and decomposition efficiency of ethyl acetate, while increasing the reverse purge airflow improved its removal effectiveness. The valve switching time was found to influence both the temperature of the heat storage chamber and the pressure within the oxidation chamber, consequently affecting system stability and thermal efficiency. The compact three-chamber RTO device developed in this study demonstrated highly efficient treatment of ethyl acetate waste gas, achieving removal rates between 97% and 99%, with thermal efficiency exceeding 96%.

Key words: volatile organic compounds, three-chamber RTO, reactors, oxidation, pollution, waste treatment, environment

中图分类号:

O 643.2⁺1

杨鹏, 尤万里, 凌忠钱, 曾宪阳, 李允超, 林佳一, 王丽建, 袁定琨. 紧凑式三室RTO系统处理乙酸乙酯废气性能的实验研究[J]. 化工学报, 2025, 76(7): 3585-3595.

Peng YANG, Wanli YOU, Zhongqian LING, Xianyang ZENG, Yunchao LI, Jiayi LIN, Lijian WANG, Dingkun YUAN. Experimental study on performance of compact three-chamber RTO system for treating waste gas containing ethyl acetate[J]. CIESC Journal, 2025, 76(7): 3585-3595.

图/表 21

图1 RTO装置系统原理图

Fig.1 Principle diagram of RTO system

图2 RTO装置实物图

Fig.2 Physical diagram of RTO system

表1 氧化室温度实验工况

Table 1 Oxidation chamber temperature test operating conditions

氧化室温度/℃	乙酸乙酯浓度/（mg/m³）	进气风量/（m³/h）	阀门切换时间/s
600	1000	200	120
650	1000	200	120
700	1000	200	120
750	1000	200	120
800	1000	200	120
850	1000	200	120

表2 进气风量实验工况

Table 2 Inlet air flow test operating conditions

进气风量/（m³/h）	乙酸乙酯浓度/（mg/m³）	氧化室温度/℃	阀门切换时间/s
100	1000	800	120
120	1000	800	120
140	1000	800	120
160	1000	800	120
180	1000	800	120
200	1000	800	120

表3 吹扫风量实验工况

Table 3 Purge flow rate test operating conditions

吹扫风量/（m³/h）	乙酸乙酯浓度/（mg/m³）	氧化室温度/℃	进气风量/（m³/h）	阀门切换时间/s
0	1000	800	200	120
16.2	1000	800	200	120
32.4	1000	800	200	120
48.6	1000	800	200	120
64.8	1000	800	200	120
81.0	1000	800	200	120

表4 阀门切换时间实验工况

Table 4 Valve switching time test operating conditions

阀门切换时间/s	乙酸乙酯浓度/（mg/m³）	氧化室温度/℃	进气风量/（m³/h）
60	500，1000，1500，2000，2500	850	200
120	500，1000，1500，2000，2500	850	200
180	500，1000，1500，2000，2500	850	200
240	500，1000，1500，2000，2500	850	200

图3 氧化室温度对进出气温度的影响

Fig.3 Effect of oxidation chamber temperature on inlet and outlet gas temperatures

图4 氧化室温度对去除效率及热效率的影响

Fig.4 Effect of oxidation chamber temperature on removal efficiency and thermal efficiency

图5 不同氧化室温度下RTO内部燃烧情况

Fig.5 Internal flame combustion of RTO at different oxidation chamber temperatures

图6 进气风量与蓄热室平均温度的关系

Fig.6 Relationship between inlet air flow rate and average temperature of heat storage chamber

图7 进气风量与进出气温度的关系

Fig.7 Relationship between inlet air flow and inlet/outlet gas temperatures

图8 进气风量变化对热效率和去除效率的影响

Fig.8 Effects of inlet air flow rate changes on thermal efficiency and removal efficiency

图9 蓄热室平均温度与吹扫风量的关系

Fig.9 Relationship between average temperature of regenerator and purge air flow rate

图10 吹扫风量与进出气温度的关系

Fig.10 Relationship between purge air flow rate and inlet/outlet gas temperature

图11 吹扫风量对蓄热室去除效率和热效率的影响

Fig.11 Effect of purge flow rate on removal efficiency and thermal efficiency of regenerative chambers

图12 蓄热室温度、进出气温度和阀门切换时间的关系

Fig.12 Relationship between regenerator temperature, inlet/outlet gas temperature and valve switching time

图13 温度波高与监测点温度点及阀门切换时间的关系

Fig.13 Relationship between temperature wave height, monitoring point temperature and valve switching time

图14 阀门切换时间与氧化室温度波动的关系

Fig.14 Relationship between valve switching time and oxidation chamber temperature fluctuation

图15 阀门切换时间180 s条件下氧化室内的压力波动及氧化室平均温度

Fig.15 Pressure fluctuation and average temperature in oxidation chamber under 180 s valve switching time condition

图16 阀门切换时间及废气浓度对去除效率的影响

Fig.16 Effect of valve switching time and waste gas concentration on removal efficiency

图17 阀门切换时间与热效率的关系

Fig.17 Relationship between valve switching time and thermal efficiency

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紧凑式三室RTO系统处理乙酸乙酯废气性能的实验研究

Experimental study on performance of compact three-chamber RTO system for treating waste gas containing ethyl acetate

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