Zobrazeno 1 - 10
of 41
pro vyhledávání: '"Uffe Vie Mentzel"'
Autor:
Andreas Eschenbacher, Alireza Saraeian, Brent H. Shanks, Uffe Vie Mentzel, Jesper Ahrenfeldt, Ulrik Birk Henriksen, Anker Degn Jensen
Publikováno v:
Catalysts, Vol 10, Iss 7, p 748 (2020)
The treatment of biomass-derived fast pyrolysis vapors with solid acid catalysts (in particular HZSM-5 zeolite) improves the quality of liquid bio-oils. However, due to the highly reactive nature of the oxygenates, the catalysts deactivate rapidly du
Externí odkaz:
https://doaj.org/article/48a2fd19acf3493f81534b8e535ed0c7
Autor:
Joachim Thrane, Lars Fahl Lundegaard, Pablo Beato, Uffe Vie Mentzel, Max Thorhauge, Anker Degn Jensen, Martin Høj
Publikováno v:
Catalysts, Vol 10, Iss 1, p 82 (2020)
Alkali earth metal molybdates (MMoO4, M = Mg, Ca, Sr, and Ba) were investigated as catalysts for the selective oxidation of methanol to formaldehyde in the search for more stable alternatives to the current industrial iron molybdate catalyst. The cat
Externí odkaz:
https://doaj.org/article/809a5a9607d94697b09e38a4e8ccbf6f
Autor:
Stian Svelle, Uffe Vie Mentzel, Elisa Borfecchia, Silvia Bordiga, Finn Joensen, Pablo Beato, Tomás Cordero-Lanzac, Kirill A. Lomachenko, Unni Olsbye, Irene Pinilla-Herrero
Publikováno v:
Journal of Catalysis. 394:416-428
The Zn-loaded zeolite ZSM-5 is an active and promising catalyst for the conversion of methanol to aromatics with high yield. In this work, we have investigated the catalytic performance of shaped Zn-ZSM-5/alumina catalysts in this reaction at industr
Autor:
Jens Ø. Duus, Chengxin Li, Andreas Eschenbacher, Asger B. Hansen, Jesper Ahrenfeldt, Alireza Saraeian, Ulrik Birk Henriksen, Brent H. Shanks, Peter Arendt Jensen, Uffe Vie Mentzel, Anker Degn Jensen
Publikováno v:
Eschenbacher, A, Saraeian, A, Shanks, B H, Jensen, P A, Li, C, Duus, J Ø, Hansen, A B, Mentzel, U V, Henriksen, U B, Ahrenfeldt, J & Jensen, A D 2020, ' Enhancing bio-oil quality and energy recovery by atmospheric hydrodeoxygenation of wheat straw pyrolysis vapors using Pt and Mo-based catalysts ', Sustainable Energy & Fuels, vol. 2020, no. 4, pp. 1991-2008 . https://doi.org/10.1039/C9SE01254K
Atmospheric hydrodeoxygenation (HDO) of wheat straw fast pyrolysis vapors was studied as a promising route for the production of renewable liquid transportation fuels. The performance of TiO2-supported Pt (0.5 wt%) and MoO3 (10 wt%) catalysts was com
Publikováno v:
Catalysts, Vol 11, Iss 1329, p 1329 (2021)
Thrane, J, Mentzel, U V, Thorhauge, M, Høj, M & Jensen, A D 2021, ' A review and experimental revisit of alternative catalysts for selective oxidation of methanol to formaldehyde ', Catalysts, vol. 11, no. 11, 1329 . https://doi.org/10.3390/catal11111329
Thrane, J, Mentzel, U V, Thorhauge, M, Høj, M & Jensen, A D 2021, ' A review and experimental revisit of alternative catalysts for selective oxidation of methanol to formaldehyde ', Catalysts, vol. 11, no. 11, 1329 . https://doi.org/10.3390/catal11111329
The selective oxidation of methanol to formaldehyde is a growing million-dollar industry, and has been commercial for close to a century. The Formox process, which is the largest production process today, utilizes an iron molybdate catalyst, which is
Autor:
Anker Degn Jensen, Jesper Ahrenfeldt, Ulrik Birk Henriksen, Peter Arendt Jensen, Uffe Vie Mentzel, Jens Ø. Duus, Chengxin Li, Andreas Eschenbacher
Publikováno v:
Eschenbacher, A, Jensen, P A, Henriksen, U B, Ahrenfeldt, J, Li, C, Duus, J Ø, Mentzel, U V & Jensen, A D 2019, ' Deoxygenation of wheat straw fast pyrolysis vapors using HZSM-5, Al 2 O 3, HZSM-5/Al 2 O 3 extrudates, and desilicated HZSM-5/Al 2 O 3 extrudates ', Energy & Fuels, vol. 33, no. 7, pp. 6405-6420 . https://doi.org/10.1021/acs.energyfuels.9b00906
HZSM-5 extrudates, its two constituents (HZSM-5 zeolite and alumina binder), and SiC for reference were tested after steam treatment for the upgrading of wheat straw fast pyrolysis (FP) vapors from an ablative bench scale system. In addition, mesopor
Autor:
Lars Pilsgaard Hansen, Troels Lindahl Christiansen, Max Thorhauge, Uffe Vie Mentzel, Joachim Thrane, Christopher Falholt Elvebakken, Anker Degn Jensen, Mikkel Juelsholt, Lars F. Lundegaard, Martin Høj, Kirsten M. Ø. Jensen
Publikováno v:
Thrane, J, Falholt Elvebakken, C, Juelsholt, M, Lindahl Christiansen, T, Jensen, K M Ø, Pilsgaard Hansen, L, Fahl Lundegaard, L, Vie Mentzel, U, Thorhauge, M, Degn Jensen, A & Høj, M 2021, ' Highly Stable Apatite Supported Molybdenum Oxide Catalysts for Selective Oxidation of Methanol to Formaldehyde : Structure, Activity and Stability ', ChemCatChem, vol. 13, no. 23, pp. 4954-4975 . https://doi.org/10.1002/cctc.202101220
Thrane, J, Elvebakken, C F, Juelsholt, M, Christiansen, T L, Jensen, K M Ø, Hansen, L P, Lundegaard, L F, Mentzel, U V, Thorhauge, M, Jensen, A D & Høj, M 2021, ' Highly Stable Apatite Supported Molybdenum Oxide Catalysts for Selective Oxidation of Methanol to Formaldehyde: Structure, Activity and Stability ', ChemCatChem, vol. 13, no. 23, pp. 4954-4975 . https://doi.org/10.1002/cctc.202101220
Thrane, J, Elvebakken, C F, Juelsholt, M, Christiansen, T L, Jensen, K M Ø, Hansen, L P, Lundegaard, L F, Mentzel, U V, Thorhauge, M, Jensen, A D & Høj, M 2021, ' Highly Stable Apatite Supported Molybdenum Oxide Catalysts for Selective Oxidation of Methanol to Formaldehyde: Structure, Activity and Stability ', ChemCatChem, vol. 13, no. 23, pp. 4954-4975 . https://doi.org/10.1002/cctc.202101220
Molybdenum oxide (5 to 20 wt.%) supported on calcium or strontium hydroxyapatite were investigated as catalysts for selective oxidation of methanol to formaldehyde. These catalysts were both active and selective, with a maximum yield achieved at 95 %
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::478881d4fe744f237a90c22a2ecc00e4
https://curis.ku.dk/ws/files/288788089/ChemCatChem_2021_Thrane_Highly_Stable_Apatite_Supported_Molybdenum_Oxide_Catalysts_for_Selective_Oxidation_of.pdf
https://curis.ku.dk/ws/files/288788089/ChemCatChem_2021_Thrane_Highly_Stable_Apatite_Supported_Molybdenum_Oxide_Catalysts_for_Selective_Oxidation_of.pdf
Publikováno v:
Thrane, J, Mentzel, U V, Thorhauge, M, Høj, M & Jensen, A D 2021, ' Hydroxyapatite Supported Molybdenum Oxide Catalyst for Selective Oxidation of Methanol to Formaldehyde: Studies of Industrial Sized Catalyst Pellets ', Catalysis Science & Technology, vol. 11, pp. 970-983 . https://doi.org/10.1039/D0CY01931C
In this study, 10 wt% MoO3 supported on hydroxyapatite (HAP, Ca5(OH)(PO4)3) pellets were investigated as catalysts for the selective oxidation of methanol to formaldehyde. HAP was synthesized by co-precipitation and pressed into industrial sized pell
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::756407368b2942c3b3ee00f303554f3e
https://orbit.dtu.dk/en/publications/b7131e6f-8c5f-4a05-b184-6b99242b93ce
https://orbit.dtu.dk/en/publications/b7131e6f-8c5f-4a05-b184-6b99242b93ce
Autor:
Anker Degn Jensen, Uffe Vie Mentzel, Pablo Beato, Joachim Thrane, Max Thorhauge, Lars F. Lundegaard, Martin Høj
Publikováno v:
Catalysts
Volume 10
Issue 1
Thrane, J, Lundegaard, L F, Beato, P, Mentzel, U V, Thorhauge, M, Jensen, A D & Høj, M 2020, ' Alkali Earth Metal Molybdates as Catalysts for the Selective Oxidation of Methanol to Formaldehyde — Selectivity, Activity, and Stability ', Catalysts, vol. 10, no. 1, 82 . https://doi.org/10.3390/catal10010082
Catalysts, Vol 10, Iss 1, p 82 (2020)
Volume 10
Issue 1
Thrane, J, Lundegaard, L F, Beato, P, Mentzel, U V, Thorhauge, M, Jensen, A D & Høj, M 2020, ' Alkali Earth Metal Molybdates as Catalysts for the Selective Oxidation of Methanol to Formaldehyde — Selectivity, Activity, and Stability ', Catalysts, vol. 10, no. 1, 82 . https://doi.org/10.3390/catal10010082
Catalysts, Vol 10, Iss 1, p 82 (2020)
Alkali earth metal molybdates (MMoO4, M = Mg, Ca, Sr, and Ba) were investigated as catalysts for the selective oxidation of methanol to formaldehyde in the search for more stable alternatives to the current industrial iron molybdate catalyst. The cat
Autor:
Brent H. Shanks, Ulrik Birk Henriksen, Andreas Eschenbacher, Alireza Saraeian, Jesper Ahrenfeldt, Uffe Vie Mentzel, Anker Degn Jensen
Publikováno v:
Eschenbacher, A, Saraeian, A, Shanks, B H, Mentzel, U V, Ahrenfeldt, J, Henriksen, U B & Jensen, A D 2020, ' Counteracting Rapid Catalyst Deactivation by Concomitant Temperature Increase during Catalytic Upgrading of Biomass Pyrolysis Vapors Using Solid Acid Catalysts ', Catalysts, vol. 10, no. 7, 748 . https://doi.org/10.3390/catal10070748
Catalysts; Volume 10; Issue 7; Pages: 748
Catalysts, Vol 10, Iss 748, p 748 (2020)
Catalysts; Volume 10; Issue 7; Pages: 748
Catalysts, Vol 10, Iss 748, p 748 (2020)
The treatment of biomass-derived fast pyrolysis vapors with solid acid catalysts (in particular HZSM-5 zeolite) improves the quality of liquid bio-oils. However, due to the highly reactive nature of the oxygenates, the catalysts deactivate rapidly du
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e9761ddd605e52e96bb45ec7914afbdd
https://orbit.dtu.dk/en/publications/904baf23-7dc9-4bad-b23e-b46fe8d77d5a
https://orbit.dtu.dk/en/publications/904baf23-7dc9-4bad-b23e-b46fe8d77d5a