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Toluene vapor capture by activated carbon particles in a dual gas-solid cyclone system
Yun Hui Lim1, Khanh Quoc Ngo, Young Koo Park
1Department of Environmental Science and Engineering, Center for Environmental Studies, Kyung Hee University, Kyunggi-do, Yongin, Korea.
Abstract:
Capturing of odorous compounds such as toluene vapor by a particulate-activated carbon adsorbent was investigated in a gas-solid cyclone, which is one type of mobile beds. The test cyclone was early modified with the post cyclone (PoC) and a spiral flow guide to the vortex finder. The proposed process may contribute to the reduction of gases and dust from industrial exhausts, especially when dealing with a low concentration of odorous elements and a large volume ofdust flow. In this device, the toluene capturing efficiency at a 400 ppm concentration rose up to 77.4% when using activated carbon (AC) particles with a median size of 27.03 microm. A maximum 96% of AC particles could be collected for reuse depending on the size and flow rate. The AC regenerated via thermal treatment showed an adsorption potential up to 66.7% throughout repeated tests.
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