Effect of Mass Ratio of Solvent to Solute and Pressure in Supercritical Fluid Extraction of Coal Tar

DOI

10.2991/icsma-16.2016.20How to use a DOI?

Keywords

coal tar, supercritical extraction, n-pentane, mass ratio, pressure curve

Abstract

Coal tar sample was extracted by supercritical n-pentane. The mass ratios of solvent to solute were researched in different pressures and the extraction yields were explored in 4-12MPa at 215 . The results show that, the mass ratio affects extraction yield distinctly and the extraction yield increases gradually with the rise of pressure. The mass ratio was defined as 1:9 and 1:12 when the pressure was below and above 8MPa respectively. A maximum extraction yield was achieved during 10-12MPa as 71.24%. An empirical extraction yield-pressure curve was calculated as EY=34.857p0.3042 (%).

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Wen Ji
AU  - Hengbo Huang
AU  - Yongfei Zhao
AU  - Shaohua Zhan
AU  - Zhaoxiang Yu
PY  - 2016/12
DA  - 2016/12
TI  - Effect of Mass Ratio of Solvent to Solute and Pressure in Supercritical Fluid Extraction of Coal Tar
BT  - Proceedings of the 2016 4th International Conference on Sensors, Mechatronics and Automation (ICSMA 2016)
PB  - Atlantis Press
SP  - 96
EP  - 100
SN  - 1951-6851
UR  - https://doi.org/10.2991/icsma-16.2016.20
DO  - 10.2991/icsma-16.2016.20
ID  - Ji2016/12
ER  -