High-pressure advantages in stoichiometric hydrogenation of carbon dioxide to methanol

<p> Interplay between three important reaction parameters (pressure, temperature, and space velocity) in stoichiometric hydrogenation of carbon dioxide (CO<sub>2</sub>:H<sub>2</sub>=1:3) was systematically investigated using a commercial Cu/ZnO/Al<sub>2</sub>...

Descripción completa

Detalles Bibliográficos
Autores: Gaikwad, Rohit, Bansode, Atul, Urakawa, Atsushi
Tipo de recurso: artículo
Fecha de publicación:2016
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2072/305873
Acceso en línea:http://hdl.handle.net/2072/305873
https://doi.org/10.1016/j.jcat.2016.02.005
Access Level:acceso abierto
Palabra clave:CO2 hydrogenation
methanol synthesi
high-pressure
kinetics
thermodynamics
Cu/ZnO/Al2O3
id ES_2d9fc99787ec48637e07dda95e06bc23
oai_identifier_str oai:recercat.cat:2072/305873
network_acronym_str ES
network_name_str España
repository_id_str
spelling High-pressure advantages in stoichiometric hydrogenation of carbon dioxide to methanolGaikwad, RohitBansode, AtulUrakawa, AtsushiCO2 hydrogenationmethanol synthesihigh-pressurekineticsthermodynamicsCu/ZnO/Al2O3<p> Interplay between three important reaction parameters (pressure, temperature, and space velocity) in stoichiometric hydrogenation of carbon dioxide (CO<sub>2</sub>:H<sub>2</sub>=1:3) was systematically investigated using a commercial Cu/ZnO/Al<sub>2</sub>O<sub>3</sub> catalyst. Their impacts on reaction performance and important ranges of process conditions towards full one-pass conversion of CO<sub>2</sub> to methanol at high yield were rationalized based on the kinetics and thermodynamics of the reaction. Under high-pressure condition above a threshold temperature, the reaction overcomes kinetic control, entering thermodynamically controlled regime. Ca. 90% CO<sub>2</sub> conversion and &gt;95% methanol selectivity was achieved with a very good yield (0.9-2.4 g<sub>MeOH</sub> g<sub>cat</sub><sup>-1</sup> h<sup>-1</sup>) at 442 bar. Such high-pressure condition induces the formation of highly dense phase and consequent mass transfer limitation. When this limitation is overcome, the advantage of high-pressure conditions can be fully exploited and weight time yield as high as 15.3 g<sub>MeOH</sub> g<sub>cat</sub><sup>-1</sup> h<sup>-1</sup> could be achieved at 442 bar. Remarkable advantages of high-pressure conditions in the terms reaction kinetics, thermodynamics, and phase behavior in the aim to achieve better methanol yield are discussed.</p>Elsevier2016info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/2072/305873https://doi.org/10.1016/j.jcat.2016.02.005RECERCAT (Dipòsit de la Recerca de Catalunya)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésICIQ FoundationMINECOSevero Ochoa Excellence Accreditation 2014-2018Journal of CatalysisSEV-2013-0319CTQ2012-34153EEBB-I-15-10528© 2016 Elsevierinfo:eu-repo/semantics/openAccessoai:recercat.cat:2072/3058732026-05-29T05:05:01Z
dc.title.none.fl_str_mv High-pressure advantages in stoichiometric hydrogenation of carbon dioxide to methanol
title High-pressure advantages in stoichiometric hydrogenation of carbon dioxide to methanol
spellingShingle High-pressure advantages in stoichiometric hydrogenation of carbon dioxide to methanol
Gaikwad, Rohit
CO2 hydrogenation
methanol synthesi
high-pressure
kinetics
thermodynamics
Cu/ZnO/Al2O3
title_short High-pressure advantages in stoichiometric hydrogenation of carbon dioxide to methanol
title_full High-pressure advantages in stoichiometric hydrogenation of carbon dioxide to methanol
title_fullStr High-pressure advantages in stoichiometric hydrogenation of carbon dioxide to methanol
title_full_unstemmed High-pressure advantages in stoichiometric hydrogenation of carbon dioxide to methanol
title_sort High-pressure advantages in stoichiometric hydrogenation of carbon dioxide to methanol
dc.creator.none.fl_str_mv Gaikwad, Rohit
Bansode, Atul
Urakawa, Atsushi
author Gaikwad, Rohit
author_facet Gaikwad, Rohit
Bansode, Atul
Urakawa, Atsushi
author_role author
author2 Bansode, Atul
Urakawa, Atsushi
author2_role author
author
dc.subject.none.fl_str_mv CO2 hydrogenation
methanol synthesi
high-pressure
kinetics
thermodynamics
Cu/ZnO/Al2O3
topic CO2 hydrogenation
methanol synthesi
high-pressure
kinetics
thermodynamics
Cu/ZnO/Al2O3
description <p> Interplay between three important reaction parameters (pressure, temperature, and space velocity) in stoichiometric hydrogenation of carbon dioxide (CO<sub>2</sub>:H<sub>2</sub>=1:3) was systematically investigated using a commercial Cu/ZnO/Al<sub>2</sub>O<sub>3</sub> catalyst. Their impacts on reaction performance and important ranges of process conditions towards full one-pass conversion of CO<sub>2</sub> to methanol at high yield were rationalized based on the kinetics and thermodynamics of the reaction. Under high-pressure condition above a threshold temperature, the reaction overcomes kinetic control, entering thermodynamically controlled regime. Ca. 90% CO<sub>2</sub> conversion and &gt;95% methanol selectivity was achieved with a very good yield (0.9-2.4 g<sub>MeOH</sub> g<sub>cat</sub><sup>-1</sup> h<sup>-1</sup>) at 442 bar. Such high-pressure condition induces the formation of highly dense phase and consequent mass transfer limitation. When this limitation is overcome, the advantage of high-pressure conditions can be fully exploited and weight time yield as high as 15.3 g<sub>MeOH</sub> g<sub>cat</sub><sup>-1</sup> h<sup>-1</sup> could be achieved at 442 bar. Remarkable advantages of high-pressure conditions in the terms reaction kinetics, thermodynamics, and phase behavior in the aim to achieve better methanol yield are discussed.</p>
publishDate 2016
dc.date.none.fl_str_mv 2016
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/2072/305873
https://doi.org/10.1016/j.jcat.2016.02.005
url http://hdl.handle.net/2072/305873
https://doi.org/10.1016/j.jcat.2016.02.005
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv ICIQ Foundation
MINECO
Severo Ochoa Excellence Accreditation 2014-2018
Journal of Catalysis
SEV-2013-0319
CTQ2012-34153
EEBB-I-15-10528
dc.rights.none.fl_str_mv © 2016 Elsevier
info:eu-repo/semantics/openAccess
rights_invalid_str_mv © 2016 Elsevier
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv RECERCAT (Dipòsit de la Recerca de Catalunya)
reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869405333351301120
score 15,81155

Similares en LA Referencia