Ni(II)-Al(III) layered double hydroxide as catalyst precursor for ethanol steam reforming: Activation treatments and kinetic studies
The kinetic behaviour of the steam reforming reaction using Ni(II)-Al(III) layered double hydroxide (LDH) as catalyst precursor is studied. The carbonate form of Ni(II)-Al(III) LDH (takovite) was prepared using an homogeneous alkalinization procedure, by means of the thermal hydrolysis of urea. Diff...
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Formato: | Capítulo de libro |
Lenguaje: | Inglés |
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2008
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100 | 1 | |a Mas, V. | |
245 | 1 | 0 | |a Ni(II)-Al(III) layered double hydroxide as catalyst precursor for ethanol steam reforming: Activation treatments and kinetic studies |
260 | |c 2008 | ||
270 | 1 | 0 | |m Amadeo, N.; Laboratorio de Procesos Catalíticos, Departamento de Ingeniería Química, Facultad de Ingeniería, Pabellon Industrias, Ciudad Universitaria, 1428 Buenos Aires, Argentina; email: norma@di.fcen.uba.ar |
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506 | |2 openaire |e Política editorial | ||
520 | 3 | |a The kinetic behaviour of the steam reforming reaction using Ni(II)-Al(III) layered double hydroxide (LDH) as catalyst precursor is studied. The carbonate form of Ni(II)-Al(III) LDH (takovite) was prepared using an homogeneous alkalinization procedure, by means of the thermal hydrolysis of urea. Different activation treatments of Ni(II)Al(III) precursor are analysed; it was found that the catalyst which presents the higher activity in methane steam reforming, is that obtained by pure H2 reduction of precursor without previous calcination. The H2 yield for ethanol steam reforming using the reduced LDH sample reaches values of 5 mol of H2 per mol of ethanol in the feed. The others products obtained, operating between 823 and 923 K, are CO, CO2 and CH4. It is found that the reaction order respect to ethanol is lower than 1. It is verified that, for each reaction temperature, there is a water/ethanol molar ratio at which ethanol conversion has a maximum. It means that a competition between both reactants adsorbed on the same active sites is verified. © 2007 Elsevier B.V. All rights reserved. |l eng | |
536 | |a Detalles de la financiación: Secretaria de Ciencia y Tecnica, Universidad de Buenos Aires | ||
536 | |a Detalles de la financiación: Agencia Nacional de Promoción Científica y Tecnológica | ||
536 | |a Detalles de la financiación: Consejo Nacional de Investigaciones Científicas y Técnicas | ||
536 | |a Detalles de la financiación: To Roberto Tejeda for TPR measurements. To University of Buenos (UBA), SECyT, ANPCyT and CONICET for their financial support. | ||
593 | |a Laboratorio de Procesos Catalíticos, Departamento de Ingeniería Química, Facultad de Ingeniería, Pabellon Industrias, Ciudad Universitaria, 1428 Buenos Aires, Argentina | ||
593 | |a INQUIMAE, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellon II, Ciudad Universitaria, 1428 Buenos Aires, Argentina | ||
690 | 1 | 0 | |a ETHANOL STEAM REFORMING |
690 | 1 | 0 | |a KINETIC STUDY |
690 | 1 | 0 | |a LDH |
690 | 1 | 0 | |a NI CATALYST |
690 | 1 | 0 | |a ACTIVATION ANALYSIS |
690 | 1 | 0 | |a CATALYST ACTIVITY |
690 | 1 | 0 | |a ETHANOL |
690 | 1 | 0 | |a HYDROLYSIS |
690 | 1 | 0 | |a OXIDES |
690 | 1 | 0 | |a UREA |
690 | 1 | 0 | |a ETHANOL STEAM REFORMING |
690 | 1 | 0 | |a KINETIC BEHAVIOR |
690 | 1 | 0 | |a NICKEL COMPOUNDS |
700 | 1 | |a Dieuzeide, M.L. | |
700 | 1 | |a Jobbágy, M. | |
700 | 1 | |a Baronetti, G. | |
700 | 1 | |a Amadeo, Norma Elvira | |
700 | 1 | |a Laborde, M. | |
773 | 0 | |d 2008 |g v. 133-135 |h pp. 319-323 |k n. 1-4 |p Catal Today |x 09205861 |w (AR-BaUEN)CENRE-4117 |t Catalysis Today | |
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