RT Journal Article
T1 Phosphorus-containing mesoporous carbon acid catalyst for methanol dehydration to dimethyl ether.
A1 Valero-Romero, María José
A1 Calvo-Muñoz, Elisa Maria
A1 Ruiz-Rosas, Ramiro Rafael
A1 Rodríguez-Mirasol, José
A1 Cordero-Alcántara, Tomás
K1 Catalizadores
K1 Carbono
K1 Fósforo
K1 Metanol (Combustible)
AB Catalytic dehydration of methanol on an acid carbon catalyst prepared by chemical activation of olive stone with H3PO4 is reported. This preparation methodology produces carbons with a well-developed porous texture and highly thermally stable phosphorus surface complexes in form of C–O–PO3 and C–PO3. These P groups confer the carbon with a high oxidation resistance, surface acid and redox sites. In the absence of oxygen, the catalyst experimented a gradual deactivation due to coke deposition on the strong acid sites (P-OH) and reduction of the moderate-strength acid P-surface groups (from C–O–P to C–P type ones). The novelty of this research concerns the high catalytic stability in air atmosphere of this type of carbon with a steady state methanol conversion of 20% at 300ºC and selectivity towards dimethyl ether of 95%. The presence of oxygen in the reaction gas avoids coke deposition by continuously (re)oxidation of reduced P-surface groups, without gasification of the carbon catalyst.
PB ACS Publications
YR 2019
FD 2019-02-14
LK https://hdl.handle.net/10630/29325
UL https://hdl.handle.net/10630/29325
LA spa
NO María José Valero-Romero, Elisa María Calvo-Muñoz, Ramiro Ruiz-Rosas, José Rodríguez-Mirasol and Tomás Cordero. Phosphorus-Containing Mesoporous Carbon Acid Catalyst for Methanol Dehydration to Dimethyl Ether. Ind. Eng. Chem. Res. 2019, 58, 4042−4053
NO We thank the Spanish Ministry of Science, Innovation and Universities and FEDER (Project CTQ2015-68654-R) for financing this research. M.J.V.-R. gratefully thanks Universidad de Málaga for a postdoctoral fellowship as part of the I Plan Propio de Investigación y Transferencia.
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 20 ene 2026