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Thermal analyses of four adsorption materials for environmental pollution by DSC and TG

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Abstract

In view of loss prevention and hazard control, traditional engineers use adsorbents to adsorb volatile organic compounds (VOCs) in the semiconductor, photonics, and petrochemical industries. To save funds and promote green energy application, industries usually apply a zeolite processing desorption step under high temperature in the zeolite rotor-wheel system. Many thermal runaway accidents and flame incidents have occurred in the desorption step. Zeolite has been used to adsorb VOCs and applied in the processing desorption step in a reactor without considering oxygen concentration situation, which could easily lead to a flame followed by thermal explosion. Nitrogen is a critically important purge gas regarding passive action for avoiding an accident. Home-made zeolite was investigated for the best manufacturing ratio, which was 20. Brunauer–Emmett–Teller of zeolite (Si/Al = 20) was analyzed to be 400 m2 g−1, which is easy for adsorbing pollutants. According to our previous studies, home-made zeolite has prominent adsorption capacities on VOCs. Zeolite rotor-wheel system was developed to desorb the pollutants of interest. Zeolite was applied to analyze the thermal stability, runaway reaction under various oxygen concentrations, reuse rates, etc. Zeolite is a thermally stable material under room temperature to 650 °C. An endothermic reaction (30–100 °C) of home-made zeolite was analyzed by differential scanning calorimetry and thermogravimetric analyzer. Clearly, water has a significant effect on deteriorating for the zeolite adsorption. Home-made zeolite is a suitable adsorbent and catalyst in the petrochemical and environmental industries. As far as pollution control and loss prevention are concerned, versatility in the analysis of recycled adsorbents is required and is useful for various industrial applications.

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Authors and Affiliations

  1. TransWorld University, 1221, Zhennan Rd., Douliou, 640, Yunlin, Taiwan, ROC

    Jun-Yen Wu & Sheng-Hung Wu

  2. Graduate Institute of Human Resource Management, Southern Taiwan University, 1, Nan-Tai Street, Yongkang Dist., Tainan, 710, Taiwan, ROC

    Jin-Chuan Lee

  3. Graduate School of Engineering Science and Technology, National Yunlin University of Science and Technology, 123, University Rd., Sec. 3, Douliou, 64002, Yunlin, Taiwan, ROC

    Yung-Tin Wu

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  1. Jun-Yen Wu
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  2. Jin-Chuan Lee
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Correspondence to Sheng-Hung Wu.

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Wu, JY., Lee, JC., Wu, YT. et al. Thermal analyses of four adsorption materials for environmental pollution by DSC and TG. J Therm Anal Calorim 112, 665–670 (2013). https://doi.org/10.1007/s10973-012-2597-7

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  • DOI: https://doi.org/10.1007/s10973-012-2597-7

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