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2015 | 36 | 2 | 239-250
Tytuł artykułu

Influence of Steam Reforming Catalyst Geometry on the Performance of Tubular Reformer – Simulation Calculations

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
A proper selection of steam reforming catalyst geometry has a direct effect on the efficiency and economy of hydrogen production from natural gas and is a very important technological and engineering issue in terms of process optimisation. This paper determines the influence of widely used seven-hole grain diameter (ranging from 11 to 21 mm), h/d (height/diameter) ratio of catalyst grain and Sh/St (hole surface/total cylinder surface in cross-section) ratio (ranging from 0.13 to 0.37) on the gas load of catalyst bed, gas flow resistance, maximum wall temperature and the risk of catalyst coking. Calculations were based on the one-dimensional pseudo-homogeneous model of a steam reforming tubular reactor, with catalyst parameters derived from our investigations. The process analysis shows that it is advantageous, along the whole reformer tube length, to apply catalyst forms of h/d = 1 ratio, relatively large dimensions, possibly high bed porosity and Sh/St ≈ 0.30-0.37 ratio. It enables a considerable process intensification and the processing of more natural gas at the same flow resistance, despite lower bed activity, without catalyst coking risk. Alternatively, plant pressure drop can be reduced maintaining the same gas load, which translates directly into diminishing the operating costs as a result of lowering power consumption for gas compression.
Wydawca

Rocznik
Tom
36
Numer
2
Strony
239-250
Opis fizyczny
Daty
wydano
2015-06-01
otrzymano
2014-09-12
poprawiono
2015-04-21
zaakceptowano
2015-04-30
online
2015-07-17
Twórcy
  • New Chemical Syntheses Institute (INS), Al. Tysiąclecia Państwa Polskiego 13A, 24-110 Puławy, Poland
  • New Chemical Syntheses Institute (INS), Al. Tysiąclecia Państwa Polskiego 13A, 24-110 Puławy, Poland
  • Maria Curie-Skłodowska University (UMCS), Faculty of Chemistry, Department of Chemical Technology, Pl. M. Curie-Skłodowskiej 3, 20-031 Lublin, Poland
  • New Chemical Syntheses Institute (INS), Al. Tysiąclecia Państwa Polskiego 13A, 24-110 Puławy, Poland
  • New Chemical Syntheses Institute (INS), Al. Tysiąclecia Państwa Polskiego 13A, 24-110 Puławy, Poland
Bibliografia
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  • Franczyk E., Michalska K., Prokop U., Stołecki K., Wróbel W., 2009. Deactivation of steam reforming catalysts under industrial conditions. Przem. Chem., 88, 878-881.
  • Gołębiowski A., Kowalik P., Stołecki K., Narowski R., Kruk J., Prokop U., Mordecka Z., Dmoch M., Jesiołowski J., Śpiewak Z., 2009. Industrial catalyst technologies developed by INS Puławy. Fifty years of experience. Przem. Chem., 88, 1284-1290.
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  • Rostrup-Nielsen J.R., 1984. Catalytic steam reforming, In: Anderson J.R., Boudart M. (Eds.), Catalysis - science and technology. Vol.5. Springer-Verlag, Berlin. DOI: 10.1007/978-3-642-93247-2_1.
  • Rostrup-Nielsen J., Christiansen L.J., 2011. Concepts in Syngas Manufacture, In: Hutchings G.J. (Ed.), Catalytic Science Series. Vol.10. Imperial College Press, London. DOI: 10.1142/9781848165687.
  • Schmidt + Clemens Group. Spun casting - Petrochemical industry. One group - One expertise. High alloys for the petrochemical industries. Retrieved September 11, 2014, from: http://www.schmidtclemens.com/fileadmin/web_images/Broschueren/SC_SpunCasting_Petro_08-2010_ENG.pdf.
  • Shumake G., Coleman A., 2007. Optimize your hydrogen plant operations. Hydrocarb. Process., 9, 153-158.
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  • Ziółkowski D., Legawiec B., Tobiś J., 1982a. Over-all heat transfer coefficient at the gas stream heating by the wall of a tubular apparatus packed with a static granular bed. Inż. Chem. Proc., 3, 765-778.
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Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_1515_cpe-2015-0016
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