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Naslov:H2 separation and use in fuel cells and CO2 separation and reuse as a reactant in the existing methanol process
Avtorji:ID Kovač Kralj, Anita (Avtor)
ID Glavič, Peter (Avtor)
Datoteke:URL http://dx.doi.org/10.1021/ef070085q
 
Jezik:Angleški jezik
Vrsta gradiva:Neznano
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:FKKT - Fakulteta za kemijo in kemijsko tehnologijo
Opis:Fuel-cell efficiencies yield substantial reductions in the emissions of climate-change gases and promise an end to exclusive reliance on carbon fuels for energy. Fuel cells, CO2 reuse, process heat integration, and open gas turbine electricity cogeneration can be optimized simultaneously, using a nonlinear programming (NLP) algorithm. The simplified NLP model contains equations of structural and parametric optimization. This NLP model is used tooptimize complex and energy-intensive continuous processes. This procedure does not guarantee a global cost optimum, but it does lead to good, perhaps near-optimum, designs. The plant, which produces methanol, has a surplus of hydrogen (H2) and CO2 flow rates in purge gas. H2 is separated from the purge gas by an existing pressure swing adsorption (PSA) column. Pure H2 can be usedas fuel in fuel cells. CO2 can be separated from the outlet stream (purge gas) by a membrane or absorption system (absorber and regenerator) or an adsorption system and reused as a reactant in a reactor system. Therefore, theproduct yield can be increased and CO2 emissions can be reduced, simultaneously. CO2 emissions can then be reduced at the source. The retrofitted process can be operated within existing parameters. Using a methanol process as a case study, the CO2 emission flow rate can be reduced by4800 t/a. The additional electricity cogeneration in the gas turbine and in fuel cells and additional flow rates of the raw material could generate an additional profit of 2.54 MEUR/a.
Ključne besede:chemical processing, methanol production, optimization, nonlinear programming, CO2 reuse, fuel cells, heat integration, energy cogeneration
Leto izida:2007
PID:20.500.12556/DKUM-25999 Novo okno
UDK:661.721.012
COBISS.SI-ID:11756054 Novo okno
ISSN pri članku:0887-0624
NUK URN:URN:SI:UM:DK:NOOEPCNO
Datum objave v DKUM:31.05.2012
Število ogledov:2763
Število prenosov:124
Metapodatki:XML DC-XML DC-RDF
Področja:Ostalo
:
KOVAČ KRALJ, Anita in GLAVIČ, Peter, 2007, H2 separation and use in fuel cells and CO2 separation and reuse as a reactant in the existing methanol process. Energy & fuels [na spletu]. 2007. [Dostopano 14 marec 2025]. Pridobljeno s: http://dx.doi.org/10.1021/ef070085q
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Skupna ocena:
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Gradivo je del revije

Naslov:Energy & fuels
Skrajšan naslov:Energy fuels
Založnik:The Society
ISSN:0887-0624
COBISS.SI-ID:7266053 Novo okno

Sekundarni jezik

Jezik:Angleški jezik
Ključne besede:kemijska procesna tehnika, proizvodnja metanola, optimiranje, nelinearno programiranje, ponovna uporaba CO2, gorivne celice, toplotna integracija, kogeneracija


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