Premium
Kinetics of hydrogen absorption in a stirred metal hydride slurry
Author(s) -
Tung Yuanki,
Grohse E. W.,
Hill F. B.
Publication year - 1986
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.690321107
Subject(s) - slurry , agitator , hydride , mass transfer , hydrogen , chemistry , isothermal process , mass transfer coefficient , absorption (acoustics) , continuous stirred tank reactor , kinetics , chemical engineering , materials science , analytical chemistry (journal) , thermodynamics , chromatography , organic chemistry , composite material , physics , engineering , quantum mechanics
Isothermal, isobaric measurements were made of the rate of hydrogen absorption by a slurry of LaNi 5 powder suspended in n ‐undecane in a baffled stirred reactor. The data were interpreted using a model emobodying three resistances in series: a gas‐liquid mass transfer resistance, a liquid‐solid mass transfer resistance, and an “overall reaction resistance.” At the highest agitator speeds employed, 2,000 rpm, conversions of LaNi 5 to hydride of 90% or better were obtained within one minute or less, thereby confirming the potential of the metal hydride slurry concept for commercial applications.