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Rate phenomena in the reaction of hydrogen sulfide with a zinc oxide‐based sorbent
Author(s) -
Palmer Bruce R.,
Gutierrez Carmen,
Gidas MarieBeatrice,
Berrouk Abdallah,
Gawargy Mena W.H.
Publication year - 2011
Publication title -
environmental progress and sustainable energy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.495
H-Index - 66
eISSN - 1944-7450
pISSN - 1944-7442
DOI - 10.1002/ep.10495
Subject(s) - sorbent , hydrogen sulfide , sorption , zinc sulfide , calcination , thermogravimetric analysis , zinc , sulfide , materials science , chemical engineering , inorganic chemistry , chemistry , gravimetric analysis , nuclear chemistry , adsorption , metallurgy , organic chemistry , sulfur , catalysis , engineering
A zinc oxide‐based sorbent was prepared by spraying drying a slurry containing 65% zinc oxide, 18% peptized alumina, and 17% perlite. The spray dried solids were dry sieved, wet sieved, dried at 150°C for 1 h, and subsequently calcined at 635°C for 1 h to produce the sorbent. The rate of sorption of hydrogen sulfide was measured as a function of time with a Cahn VersaTherm™ thermogravimetric analyzer. Sorption rate is reported as a function of hydrogen sulfide partial pressure, temperature, and external particle size. Sorption rate can be described by a hydrogen sulfide mass‐transport model for agglomerated particles. This agglomerate kinetics model satisfactory explains rate phenomena observed in this system. © 2010 American Institute of Chemical Engineers Environ Prog, 2011