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Listar por palabra clave "Deactivation"

Mostrando ítems 1-6 de 6

Conversion of methanol to olefins: Stabilization of nanosized SAPO-34 by hydrothermal treatment

Li, Zhibin; Martínez Triguero, Luis Joaquín; Yu, Jihong; Corma Canós, Avelino (Elsevier, 2015-09)

Nano-SAPO-34 zeolite catalyst (20 nm crystal size) has been stabilized by hydrothermal treatment. After steamed at high temperatures (T >= 550 degrees C), its textural properties and high lifetime during the reaction of ...
Improving the catalytic performance of SAPO-18 for the methanol-to-olefins (MTO) reaction by controlling the Si distribution and crystal size

Martínez Franco, Raquel; Li, Zhibin; Martínez Triguero, Luis Joaquín; Moliner Marin, Manuel; Corma Canós, Avelino (Royal Society of Chemistry, 2016)

[EN] The physico-chemical properties of the small pore SAPO-18 zeotype have been controlled by properly selecting the organic molecules acting as organic structure directing agents (OSDAs). The two organic molecules selected ...
New micro and mesoporous materials for the reaction of methanol to olefins

Li, Zhibin (Universitat Politècnica de València, 2014-11-17)

(1) We will show that nano sized samples of SAPO-34 synthesized by microwave heating presents much higher lifetime than standard-SAPO-34 synthesized by conventional hydrothermal method for the reaction of methanol to ...
Non-oxidative dehydroaromatization of methane:an effective reaction regeneration cyclic operation for catalyst life extension

Portilla Ovejero, Mª Teresa; Llopis Alonso, Francisco; Martínez, Cristina (Royal Society of Chemistry, 2015)

[EN] Non-oxidative methane aromatization is an attractive direct route for producing higher hydrocarbons. It is highly selective to benzene despite the low conversion due to thermodynamic limitations, and Mo/H-ZSM-5, the ...
The influence of zeolite surface-aluminum species on the deactivationof CuZnAl/zeolite hybrid catalysts for the direct DME synthesis

García Trenco, Andrés; Martinez Feliu, Agustin (Elsevier, 2014-05-15)

[EN] The influence of the nature and amount of zeolite-surface Al species on the deactivation behavior ofbifunctional CZA/zeolite hybrid catalysts during the direct DME synthesis (260◦C, 4.0 MPa) from syn-gas (66% ...
Transient absorption spectroscopy detection of sensitized delayed fluorescence in chiral benzophenone/naphthalene systems

Bonancía Roca, Paula; Jiménez Molero, María Consuelo; Miranda Alonso, Miguel Ángel (Elsevier, 2011-10-17)

Transient absorption spectroscopy has proven to be a powerful tool to investigate the formation and decay of excited singlet states upon triplet–triplet annihilation, following T–T energy transfer from a selectively excited ...