Zobrazeno 1 - 10 of 91 pro vyhledávání: '"Pekka Simell"'
1
Akademický článek
Two-Step Conversion of CO2 to Light Olefins: Laboratory-Scale Demonstration and Scale-Up Considerations
Autor: Matti Reinikainen, Aki Braunschweiler, Sampsa Korpilo, Pekka Simell, Ville Alopaeus
Publikováno v: ChemEngineering, Vol 6, Iss 6, p 96 (2022)
The highly selective production of light olefins from CO2 was demonstrated for the first time with a laboratory-scale process comprising consecutive reverse water gas shift (RWGS) and Fischer–Tropsch (FT) reactors. The RWGS reaction, catalyzed by r
Externí odkaz: https://doaj.org/article/4ea0e3dba75040099bf96a2b1b006c92
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3
Akademický článek
Activated Carbons for Syngas Desulfurization: Evaluating Approaches for Enhancing Low-Temperature H2S Oxidation Rate
Autor: Christian Frilund, Ilkka Hiltunen, Pekka Simell
Publikováno v: ChemEngineering, Vol 5, Iss 2, p 23 (2021)
Its relatively low cost and high surface area makes activated carbon an ideal adsorbent candidate for H2S removal. However, physical adsorption of H2S is not very effective; therefore, methods to facilitate reactive H2S oxidation on carbons are of in
Externí odkaz: https://doaj.org/article/f01aff00cd3b45c98f22d5a7b2d9557f
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4
Akademický článek
Preparation of Synthesis Gas from CO2 for Fischer–Tropsch Synthesis—Comparison of Alternative Process Configurations
Autor: Ilkka Hannula, Noora Kaisalo, Pekka Simell
Publikováno v: C, Vol 6, Iss 3, p 55 (2020)
We compare different approaches for the preparation of carbon monoxide-rich synthesis gas (syngas) for Fischer–Tropsch (FT) synthesis from carbon dioxide (CO2) using a self-consistent design and process simulation framework. Three alternative metho
Externí odkaz: https://doaj.org/article/3508255b10d74c81bdf7beb3db01d631
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5
Atomic layer deposition coated filters in catalytic filtration of gasification gas
Autor: Tyko Viertiö, Viivi Kivelä, Matti Putkonen, Johanna Kihlman, Pekka Simell
Publikováno v: Viertiö, T, Kivelä, V, Putkonen, M, Kihlman, J & Simell, P 2021, ' Atomic layer deposition coated filters in catalytic filtration of gasification gas ', Catalysts, vol. 11, no. 6, 688 . https://doi.org/10.3390/catal11060688
Catalysts
Volume 11
Issue 6
Catalysts, Vol 11, Iss 688, p 688 (2021)
Steel filter discs were catalytically activated by ALD, using a coating of supporting Al2 O3 layer and an active NiO layer for gas cleaning. Prepared discs were tested for model biomass gasification and gas catalytic filtration to reduce or eliminate
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::d8929bce988a3eafbc09ff24e979b37b
https://cris.vtt.fi/en/publications/4d242b4a-50c0-4f7a-a958-e937cff2dad3
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6
Small- to medium-scale deep syngas purification:Biomass-to-liquids multi-contaminant removal demonstration
Autor: Christian Frilund, Pekka Simell, Sanna Tuomi, Esa Kurkela
Publikováno v: Frilund, C, Tuomi, S, Kurkela, E & Simell, P 2021, ' Small-to medium-scale deep syngas purification : Biomass-to-liquids multi-contaminant removal demonstration ', Biomass and Bioenergy, vol. 148, 106031 . https://doi.org/10.1016/j.biombioe.2021.106031
Biomass and Bioenergy
The complete and economic removal of harmful components from biomass gasification-based syngas is a major challenge. A final gas cleaning concept for syngas purification to catalytic synthesis quality was developed as an alternative to organic-solven
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b6bf4e0a6f649cfdfa71fe8393b94606
https://cris.vtt.fi/ws/files/45528869/1_s2.0_S0961953421000684_main.pdf
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7
Catalyst for dehydrogenation, method for preparing the catalyst and use
Autor: Pekka Simell, Matti Reinikainen, Matti Putkonen, Laura Keskiväli, Noora Kaisalo, Timo Repo, Juha Keskiväli, Päivi Aakko-Saksa
Publikováno v: Simell, P, Reinikainen, M, Putkonen, M, Keskiväli, L, Kaisalo, N, Repo, T, Keskiväli, J & Aakko-Saksa, P May. 07 2020, Catalyst for dehydrogenation, method for preparing the catalyst and use, Patent No. FI20185940 .
VTT Technical Research Centre of Finland-PURE
The invention relates to a catalyst for dehydrogenation. The catalyst is a Pt catalyst, in which Pt catalyst agent is formed by using a Pt-precursor and is arranged on a support, and the support is selected from TiO2 or gamma-?12O3. Further, the inve
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::362435dae6530fcf1e24d13b1355209f
https://cris.vtt.fi/en/publications/7edad701-7f6c-4719-9ac1-ad4227f80202
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8
Hydrogen release from liquid organic hydrogen carriers catalysed by platinum on rutile-anatase structured titania
Autor: Unto Tapper, Pekka Simell, Laura Keskiväli, Matti Reinikainen, Marko Vehkamäki, Timo Repo, Marianna Kemell, Päivi Aakko-Saksa
Publikováno v: Aakko-Saksa, P T, Vehkamäki, M, Kemell, M, Keskiväli, L, Simell, P, Reinikainen, M, Tapper, U & Repo, T 2020, ' Hydrogen release from liquid organic hydrogen carriers catalysed by platinum on rutile-anatase structured titania ', Chemical communications (Cambridge, England), vol. 56, no. 11, pp. 1657-1660 . https://doi.org/10.1039/c9cc09715e
A liquid organic hydrogen carrier (LOHC) is an interesting concept for hydrogen storage. We describe herein a new, active catalyst system for dehydrogenation of perhydrogenated dibenzyl toluene (H18-DBT), which is a promising LOHC candidate. Pt suppo
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6a09de6763a9c7d56da754b3bc3163c4
http://hdl.handle.net/10138/324318
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9
Modeling of nickel-based hydrotalcite catalyst coated on heat exchanger reactors for CO2 methanation
Autor: Mari Leena Koskinen-Soivi, Ajenthan Mylvaganam, Ville Alopaeus, Pekka Simell, Francisco Vidal Vázquez, Johanna Kihlman
Publikováno v: Vidal Vázquez, F, Kihlman, J, Mylvaganam, A, Simell, P, Koskinen-Soivi, M L & Alopaeus, V 2018, ' Modeling of nickel-based hydrotalcite catalyst coated on heat exchanger reactors for CO 2 methanation ', Chemical Engineering Journal, vol. 349, pp. 694-707 . https://doi.org/10.1016/j.cej.2018.05.119
This study presents the kinetic modeling of CO2 methanation reaction using 15 wt% Ni/Mg/Al hydrotalcite coated catalyst. Power law and Langmuir-Hinshelwood-Hougens-Watson (LHHW) models were used to represent the kinetics of CO2 methanation. LHHW mode
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7fa780ba030fe21372206d9b6063b716
https://doi.org/10.1016/j.cej.2018.05.119
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10
Method and apparatus for forming hydrocarbons and use
Autor: Pekka Simell, Matti Reinikainen, Noora Kaisalo, Johanna Kihlman
Publikováno v: Simell, P, Reinikainen, M, Kaisalo, N & Kihlman, J Dec. 12 2019, Method and apparatus for forming hydrocarbons and use, Patent No. FI20185531 .
VTT Technical Research Centre of Finland-PURE
The invention relates to a method and an apparatus for forming hydrocarbons. A feed (1) which comprises at least carbon dioxide is supplied to a reactor (2) comprising two catalysts, which are a Fe-based catalyst (6) and a Co-based catalyst (7), and
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::6296a386a06ec0464402cd4d4552db0d
https://cris.vtt.fi/en/publications/2869296d-bb33-450f-ac6e-a637d6ed60e0
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