TY - JOUR
T1 - Batch conversion of methane to methanol using copper loaded mordenite
T2 - Influence of the main variables of the process
AU - Mojica Molina, Hebert Rodrigo
AU - González Montiel, Marlene
AU - Navarro Frómeta, Amado Enrique
N1 - Publisher Copyright:
© 2021, Universidad Nacional de Colombia. All rights reserved.
PY - 2021
Y1 - 2021
N2 - Due to the demands of oxygenated derivatives of hydrocarbons for the industry, the methane (CH4) to methanol (MeOH) conversion through solid-state catalysis is a current topic, with definite questions and specific challenges. This work shows a statistical model that predicts the quantity of methanol produced through a batch conversion process employing copper-exchanged mordenite in accordance with a full factorial experimental design. Synthesis was performed through solid-state ion exchange from Cu(acac)2 and NH4-Mordenite, obtaining weight percentages (%Cu) of 1%, 3%, and 5%, which was followed by activation through calcination at a range of temperatures (Tcal) between 300-500◦C, as well as a reaction with methane under 2-10 bar pressure (P) in static conditions employing a batch reactor. The quantities of MeOH produced, and their yields were determined through a gas chromatography and mass spectrometry analysis of the reaction samples. Finally, the role and contribution of each of the variables considered in the conversion process were analyzed. By using a nonlinear model, a quadratic dependence with %Cu and P in the studied range of the variables was found, as well as a linear dependence with Tcal. Finally, for this experiment, the highest yields (µmol/g) were obtained with the following conditions: %Cu = 3 %, P = 6 bar, and Tcal = 400◦C.
AB - Due to the demands of oxygenated derivatives of hydrocarbons for the industry, the methane (CH4) to methanol (MeOH) conversion through solid-state catalysis is a current topic, with definite questions and specific challenges. This work shows a statistical model that predicts the quantity of methanol produced through a batch conversion process employing copper-exchanged mordenite in accordance with a full factorial experimental design. Synthesis was performed through solid-state ion exchange from Cu(acac)2 and NH4-Mordenite, obtaining weight percentages (%Cu) of 1%, 3%, and 5%, which was followed by activation through calcination at a range of temperatures (Tcal) between 300-500◦C, as well as a reaction with methane under 2-10 bar pressure (P) in static conditions employing a batch reactor. The quantities of MeOH produced, and their yields were determined through a gas chromatography and mass spectrometry analysis of the reaction samples. Finally, the role and contribution of each of the variables considered in the conversion process were analyzed. By using a nonlinear model, a quadratic dependence with %Cu and P in the studied range of the variables was found, as well as a linear dependence with Tcal. Finally, for this experiment, the highest yields (µmol/g) were obtained with the following conditions: %Cu = 3 %, P = 6 bar, and Tcal = 400◦C.
KW - Activation temperature
KW - Copper mordenite
KW - Copper weight percent
KW - Methane
KW - Methane pressure
KW - Methanol
KW - Mild conditions
KW - Solid-state ion exchange
UR - http://www.scopus.com/inward/record.url?scp=85108620664&partnerID=8YFLogxK
U2 - 10.15446/ing.investig.v41n3.87537
DO - 10.15446/ing.investig.v41n3.87537
M3 - Artículo
AN - SCOPUS:85108620664
SN - 0120-5609
VL - 41
JO - Ingenieria e Investigacion
JF - Ingenieria e Investigacion
IS - 3
M1 - e87537
ER -