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AuthorKumar, Anand
Available date2020-02-24T08:57:13Z
Publication Date2018
Publication NameCatalysts
ResourceScopus
ISSN20734344
URIhttp://dx.doi.org/10.3390/catal8100481
URIhttp://hdl.handle.net/10576/13006
AbstractMethane dry reforming (MDR) is an attractive alternative to methane steam reforming for hydrogen production with low harmful environmental emissions on account of utilizing carbon dioxide in the feed. However, carbon formation in the product stream has been the most challenging aspect of MDR, as it leads to catalyst deactivation by coking, prevalent in hydrocarbon reforming reactions. Common strategies to limit coking have mainly targeted catalyst modifications, such as by doping with rare earth metals, supporting on refractory oxides, adding oxygen/steam in the feed, or operating at reaction conditions (e.g., higher temperature), where carbon formation is thermodynamically restrained. These methods do help in suppressing carbon formation; nonetheless, to a large extent, catalyst activity and product selectivity are also adversely affected. In this study, the effect of ammonia addition in MDR feed on carbon suppression is presented. Based on a thermodynamic equilibrium analysis, the most significant observation of ammonia addition is towards low temperature carbon dioxide activation to methane, along with carbon removal. Results indicate that ammonia not only helps in removing carbon formation, but also greatly enriches hydrogen production.
SponsorThis research was funded by Qatar National Research Fund, grant number NPRP8-145-2-066 and NFPuRnPd8in-5g0:9T-2h-i2s09r.esTehaerAchPCwwasa sfufunnddeeddby Qatar NNaatitoionnalaLl iRbreasreya. rch Fund, grant number NPRP8-145-2-066
Languageen
PublisherMDPI AG
SubjectAmmonia-assisted reforming
Carbon dioxide conversion
Methane dry reforming
Thermodynamic equilibrium analysis
TitleLow temperature activation of carbon dioxide by Ammonia in Methane dry reforming?A thermodynamic study
TypeArticle
Issue Number10
Volume Number8
dc.accessType Abstract Only


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