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MTBE synthesis in a novel riser simulator
Author(s) -
De Lasa Hugo,
Fournier Pierre,
Prakash Anand,
Solh Tarek El
Publication year - 1999
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450770230
Subject(s) - methanol , isobutylene , catalysis , adsorption , materials science , kinetic energy , chemistry , chemical engineering , simulation , thermodynamics , computer science , engineering , organic chemistry , physics , quantum mechanics , copolymer , polymer
MTBE synthesis, from methanol and iso‐butylene, is studied in a novel Riser Simulator using a ZSM‐5 catalyst. Conditions selected for the operation of the Riser Simulator unit are as follows: 1‐5 catalyst/reactant ratios, 80 to 160°C temperatures, 1.09 methanol/iso‐butylene mol ratio, 25 to 34 kPa methanol partial pressures and 10 to 120 s reaction times. Injection of methanol, with enough time for the methanol to reach adsorption equilibrium, followed by an isobuty‐lene injection is found to be the best operating mode to achieve 100% iso‐butylene selectivity toward MTBE with 4 to 6.8% isobutylene conversions. With the gathered experimental data, a reaction rate model based on the Rideal‐Eley kinetic model is successfully developed.