Hydrogen sulfide

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Scavenging H2S(G) From Oil Phases By Means Of Ultradispersed Sorbents

Journal Title, Volume, Page: 
Journal of Colloid and Interface Science Volume 342, Issue 2, 15 February 2010, Pages 253-260
Year of Publication: 
2010
Authors: 
Maen M. Husein
Department of Chemical and Petroleum Engineering, University of Calgary, Calgary, AB, Canada T2N 1N4
Luis Patruyo
Department of Chemical and Petroleum Engineering, University of Calgary, Calgary, AB, Canada T2N 1N4
Pedro Pereira-Almao
Department of Chemical and Petroleum Engineering, University of Calgary, Calgary, AB, Canada T2N 1N4
Nashaat N. Nassar
Department of Chemical and Petroleum Engineering, University of Calgary, Calgary, AB, Canada T2N 1N4
Current Affiliation: 
Department of Chemical Engineering, An-Najah National University, P.O. Box 7, Nablus, Palestine
Preferred Abstract (Original): 
Ultradispersed catalysts significantly enhance rates of reaction and mass transfer by virtue of their extended and easy accessible surface. These attractive features were exploited in this study to effectively capture H2S(g) from an oil phase by ultradispersed sorbents. Sorption of H2S(g) from oil phases finds application for scavenging H2S(g) forming during heavy oil extraction and upgrading. This preliminary investigation simulated heavy oil by (w/o) microemulsions having 1-methyl-naphthalene; a high boiling point hydrocarbon, as the continuous phase. H2S(g) was bubbled through the microemulsions which contained the ultradispersed sorbents. The type and origin of sorbent were investigated by comparing in situ prepared FeOOH and commercial α-Fe2O3 nanoparticles as well as aqueous FeCl3 and NaOH solutions dispersed in the (w/o) microemulsions. The in situ prepared FeOOH nanoparticles captured H2S(g) in a chemically inactive form and displayed the highest sorption rate and capacity. Temperature retarded the performance of FeOOH particles, while mixing had no significant effect.
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