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Transmethylation reactions of monomethyl and dimethylamine over montmorillonite in a flow system
Author(s) -
Restelli Edward F.,
Coull James
Publication year - 1966
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.690120216
Subject(s) - chemistry , dimethylamine , isothermal process , catalysis , reaction rate , montmorillonite , diffusion , arrhenius equation , reaction rate constant , thermodynamics , transmethylation , langmuir , exothermic reaction , adsorption , inorganic chemistry , activation energy , organic chemistry , kinetics , biochemistry , physics , amino acid , quantum mechanics , methionine
In this work the transmethylation reactions of monomethylamine and dimethylamine were investigated under steady state conditions in a flow system. A differential reactor was employed with montmorillonite as the catalyst and the initial rates of these reactions were measured isothermally. Mass velocities through the reactor were sufficiently high to eliminate bulk stream diffusion to the catalyst interface as a possible rate‐controlling step of the reaction process. Pore diffusion was checked experimentally and shown to impose no limit on reaction rates. The controlling phenomena of the reactions were determined by applying the Freundlich and Langmuir adsorption isotherms to the experimental results in the form of initial reaction rate vs. average partial pressure of reactant at constant temperature. Velocity constants and Arrhenius equations for these controlling processes were also determined.