Microwave heating behaviors of used mercury-containing catalysts

Chao LiuState Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming, Yunnan, China; ;National Local Joint Laboratory of Engineering Application of Microwave Energy and Equipment Technology, Kunming University of Science and Technology, Kunming, Yunnan, China; ;Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, Yunnan, China; View further author information

Chenhui LiuState Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming, Yunnan, China; ;National Local Joint Laboratory of Engineering Application of Microwave Energy and Equipment Technology, Kunming University of Science and Technology, Kunming, Yunnan, China; ;School of Chemistry and Environment, Yunnan Minzu University, Kunming, Yunnan, ChinaView further author information

Libo ZhangState Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming, Yunnan, China; ;National Local Joint Laboratory of Engineering Application of Microwave Energy and Equipment Technology, Kunming University of Science and Technology, Kunming, Yunnan, China; ;Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, Yunnan, China; Correspondence[email protected]
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Jinhui PengState Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming, Yunnan, China; ;National Local Joint Laboratory of Engineering Application of Microwave Energy and Equipment Technology, Kunming University of Science and Technology, Kunming, Yunnan, China; ;Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, Yunnan, China; View further author information

Aiyuan MaState Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming, Yunnan, China; ;National Local Joint Laboratory of Engineering Application of Microwave Energy and Equipment Technology, Kunming University of Science and Technology, Kunming, Yunnan, China; ;Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, Yunnan, China; View further author information

Tu HuState Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming, Yunnan, China; ;National Local Joint Laboratory of Engineering Application of Microwave Energy and Equipment Technology, Kunming University of Science and Technology, Kunming, Yunnan, China; ;Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, Yunnan, China; View further author information

Hongying XiaState Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming, Yunnan, China; ;National Local Joint Laboratory of Engineering Application of Microwave Energy and Equipment Technology, Kunming University of Science and Technology, Kunming, Yunnan, China; ;Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, Yunnan, China; View further author information

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Abstract

Heating characteristics of two types of used mercury-containing catalysts with different mercury content in microwave field were studied. Spent mercury catalysts were proved to be good microwave receptors. Heating curves were analyzed using heat transfer equation. With microwave heating, the sample temperature increased linearly, then increased gradually with considering heat loss, and finally reached an equilibrium value. Effects of material mass, microwave input power and particle size on heating behaviors were investigated. A proper material mass fitted with microwave power can lead to higher average heating rate and equilibrium temperature. Sample temperature increased with increasing input power at a constant material mass. Average heating rate was linearly related to input power. A good linear fitting relation between equilibrium temperature and input power was observed especially for catalyst support activated carbon and used low-level mercury catalysts.

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Funding

The authors want to gratefully acknowledge the support from the National Science Fund for Excellent Young Scholars of China [No. 51522405].

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Microwave heating behaviors of used mercury-containing catalysts

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Microwave heating behaviors of used mercury-containing catalysts

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