反应参数对单组分和多组分VOCs低温催化臭氧化影响的响应面法对比研究

IF 3.2 4区 工程技术 Q2 CHEMISTRY, MULTIDISCIPLINARY
Qi Shao, Haoran Xiao, Huiming Chen, Lei Gao, Jian Zhang, Chao Long
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引用次数: 0

摘要

近年来,臭氧催化氧化技术因能在低温下高效去除VOCs而受到广泛关注。然而,不同因素对VOCs尤其是多组分VOCs催化臭氧化的影响尚不确定。本文采用高效催化剂(Mn/Y),系统评价了各反应参数对单组分和多组分甲苯和碳酸二甲酯臭氧化反应的影响。同时,采用响应面法建立多元二次回归模型,比较不同反应条件对单组分和多组分VOCs反应体系的贡献差异。结果表明,不同因素对VOCs转化的影响依次为反应温度>;空速>;臭氧输入浓度。此外,反应条件对DMC反应体系中臭氧转化率和甲苯反应体系中COx选择性的影响(反应温度>;臭氧输入浓度>;空速)不同于其他反应体系(反应温度>;空速>;臭氧输入浓度)。令人满意的是,催化反应实验结果与多元二次回归模型拟合的数据高度吻合。可为优化不同反应体系中催化臭氧化VOCs的反应参数提供理论指导。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Comparative Study on the Effect of Reaction Parameters on Low-temperature Catalytic Ozonation of Single- and Multi-component VOCs Using Response Surface Methodology

Comparative Study on the Effect of Reaction Parameters on Low-temperature Catalytic Ozonation of Single- and Multi-component VOCs Using Response Surface Methodology

Comparative Study on the Effect of Reaction Parameters on Low-temperature Catalytic Ozonation of Single- and Multi-component VOCs Using Response Surface Methodology

Recently, ozone catalytic oxidation technology has been widely concerned because it can efficiently remove VOCs at low temperatures. However, the influence of different factors on the catalytic ozonation of VOCs, especially of multi-component VOCs, is still indeterminate. Herein, the effect of each reaction parameter on catalytic ozonation of single- and multi-component of toluene and dimethyl carbonate was systematically evaluated using a highly efficient catalyst (Mn/Y). Simultaneously, a multiple quadratic regression model was established by response surface methodology to compare the difference of the contribution of different reaction conditions to single- and multi-component VOCs reaction systems. It was found that the effect of different factors on VOCs conversion followed reaction temperature > space velocity > input concentration of ozone. In addition, the effect of the reaction conditions on ozone conversion in DMC reaction system and COx selectivity in toluene reaction system (reaction temperature > input concentration of ozone > space velocity) is different from the other reaction systems (reaction temperature > space velocity > input concentration of ozone). Satisfactorily, the results of the catalytic reaction experiment are highly consistent with the data fitted by the multiple quadratic regression model. It can provide theoretical guidance for optimizing the reaction parameters of catalytic ozonation of VOCs in different reaction systems.

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来源期刊
Korean Journal of Chemical Engineering
Korean Journal of Chemical Engineering 工程技术-工程:化工
CiteScore
4.60
自引率
11.10%
发文量
310
审稿时长
4.7 months
期刊介绍: The Korean Journal of Chemical Engineering provides a global forum for the dissemination of research in chemical engineering. The Journal publishes significant research results obtained in the Asia-Pacific region, and simultaneously introduces recent technical progress made in other areas of the world to this region. Submitted research papers must be of potential industrial significance and specifically concerned with chemical engineering. The editors will give preference to papers having a clearly stated practical scope and applicability in the areas of chemical engineering, and to those where new theoretical concepts are supported by new experimental details. The Journal also regularly publishes featured reviews on emerging and industrially important subjects of chemical engineering as well as selected papers presented at international conferences on the subjects.
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