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On the effect of wa...
On the effect of water on the Fischer-Tropsch rate over a Co-based catalyst : The influence of the H2/CO ratio
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- Lualdi, Matteo (författare)
- KTH,Kemisk teknologi
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- Lögdberg, Sara (författare)
- KTH,Kemisk teknologi
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- Boutonnet, Magali (författare)
- KTH,Kemisk teknologi
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- Järås, Sven (författare)
- KTH,Kemisk teknologi
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(creator_code:org_t)
- Elsevier BV, 2013
- 2013
- Engelska.
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Ingår i: Catalysis Today. - : Elsevier BV. - 0920-5861 .- 1873-4308. ; 214, s. 25-29
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The effect of water partial pressure on the Fischer-Tropsch (FT) rate of a cobalt catalyst supported on narrow-pore γ-Al2O3 was investigated at industrially relevant process conditions (483 K, 30 bar, pellet size: 53-90 μm). Inlet water partial pressure was varied up to 9 bar by external water vapour addition at different H2/CO molar ratios ranging from 1 to 3. The effect of water was found to be positive on FT-rate independently of the H2/CO ratio, but more significantly at H 2-poor condition. Temperature-programmed hydrogenation (TPH) was used to verify the presence of unreactive carbon species on the catalyst after 22 h on stream at the different conditions with and without exposure to about 9 bar water. A higher temperature feature that could be associated to amorphous polymeric carbon was detected at H2-poor conditions but remained unchanged upon 2 h of water exposure which did not result in a change in the amount of amorphous polymeric carbon detectable by TPH.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Kemiteknik -- Annan kemiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Chemical Engineering -- Other Chemical Engineering (hsv//eng)
Nyckelord
- Amorphous polymeric carbon
- Fischer-Tropsch
- H2/CO ratio
- Water
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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