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Acetylene‐Hydration Kinetics on Cadmium‐Exchanged Clinoptilolite Catalyst, Preliminary Communication
Author(s) -
Kalló Dénes,
Onyestyák György
Publication year - 2001
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/1522-2675(20010516)84:5<1157::aid-hlca1157>3.0.co;2-7
Subject(s) - chemistry , acetylene , clinoptilolite , catalysis , acetaldehyde , desorption , kinetics , steady state (chemistry) , adsorption , inorganic chemistry , rate equation , reactions on surfaces , photochemistry , organic chemistry , zeolite , ethanol , physics , quantum mechanics
Hydration of acetylene under steady‐state conditions around 450 K proceeds on Cd‐clinoptilolite without catalyst deactivation and formation of by‐products. Reaction rates were determined under steady‐state conditions at different partial pressures of acetylene, water, and acetaldehyde. In relation with the results, rate equations for different kinetic models were evaluated. Langmuir‐Hinshelwood kinetics was established. According to this model, acetylene and water must adsorb on similar sites, and the surface reaction between the adsorbed reactants is the rate‐determining step, which is followed by equilibrated desorption of the produced acetaldehyde.