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Volume 8, Issue 4 (Suppl) J Pet Environ Biotechnol, an open access journal
ISSN: 2157-7463 Oil Gas Expo 2017
July 13-14, 2017
Oil and Gas
July 13-14, 2017 Berlin, Germany
3rd International Conference and Expo on
Adsorption dynamics and rate assessment of volatile organic compounds in active carbon
Jing Zhu
China University of Petroleum, China
Volatile organic compounds (VOCs) emanated from car spills and oil and gas development can have mutagenic and carcinogenic
effects on human beings. Adsorption using activated carbon with high specific surface area and large pore volume was one of the
most widely used and mature methods to recycle VOCs. In this paper, an investigation was presented about terahertz time-domain
spectroscopy (THz-TDS) as a novel tool for the characterization of the dynamic adsorption rate of volatile organic compounds,
including isooctane, ethanol, and butyl acetate, in the pores of active carbon. The THz-TDS peak intensity (EP) was extracted and
corresponded to the measurement time frames. By analyzing EP with time, the entire process could be divided into three physical
parts including volatilization, adsorption and stabilization so that the adsorption dynamics could be clearly identified. In addition,
based on the pseudo-second-order kinetic model and the relationship between EP and time in the adsorption process, a mathematical
model was built in terms of the adsorbed rate parameter and the THz parameter. Consequently, the adsorption rate of isooctane,
ethanol and butyl acetate could be assessed by the THz measurement, indicating that THz spectroscopy could be used as a promising
selection tool to monitor the adsorption dynamics and evaluate adsorption efficiency in the recovery of pollutants.
Figure 1: Adsorption Isotherm of Different Volatile Liquids
Biography
Jing Zhu has received her BSc degree from China University of Petroleum, China in 2011. She is currently working toward her PhD degree in Material Science and
Engineering at China University of Petroleum, Beijing, China. Her research interests focus on the application of THz waves.
Jing Zhu, J Pet Environ Biotechnol 2017, 8:4 (Suppl)
DOI: 10.4172/2157-7463-C1-034