Premium
Experimental study of removing trace H 2 S using solvent coated adsorbent for PSA
Author(s) -
Zhou Li,
Zhong Limei,
Su Wei,
Sun Yan,
Zhou Yaping
Publication year - 2006
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.10833
Subject(s) - sorbent , swing , adsorption , pressure swing adsorption , solvent , chemistry , chemical engineering , process engineering , materials science , chromatography , engineering , mechanical engineering , organic chemistry
Application of compressed natural gas (CNG) as the fuel of motor vehicles will continue to grow. A key requirement for this application is the removal of trace content of H 2 S from the fuel. A pressure swing operation was proposed to take the task. The key technique therein is to modify the ordinal adsorbents with a film of solvent. The dual modes of absorption by solvent and adsorption by the interior adsorbent provide a higher H 2 S capacity than each mode alone and render the sorbent regeneration possible at ambient temperature. Experiments are performed on a two‐column process to study the effect of operation condition on process performance. Consecutive cycling of the operation proves that the pressure swing technique can be used to remove the trace content of H 2 S in practice, which represents a major breakthrough in natural gas purification technology. © 2006 American Institute of Chemical Engineers AIChE J, 2006