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

• Autorzy: Franczyk E. , Gołębiowski A. , Borowiecki T. , Kowalik P. , Wróbel W.

Identyfikatory

DOI

10.1515/cpe-2015-0016

• 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.

Słowa kluczowe

EN

tubular steam reforming; nickel catalyst geometry; process simulation; catalyst coking; process intensification

PL

symulacja procesu; katalizator koksujący; intensyfikacja

• Wydawca: Komitet Inżynierii Chemicznej i Procesowej Polskiej Akademii Nauk
• Czasopismo: Chemical and Process Engineering
• Rocznik: 2015
• Tom: Vol. 36, nr 2
• Strony: 239--250
• Opis fizyczny: Bibliogr. 20 poz., rys.

Twórcy

autor

Franczyk E.

• New Chemical Syntheses Institute (INS), Al. Tysiąclecia Państwa Polskiego 13A, 24-110 Puławy, Poland

autor

Gołębiowski A.

• New Chemical Syntheses Institute (INS), Al. Tysiąclecia Państwa Polskiego 13A, 24-110 Puławy, Poland

autor

Borowiecki T.

• 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

autor

Kowalik P.

• New Chemical Syntheses Institute (INS), Al. Tysiąclecia Państwa Polskiego 13A, 24-110 Puławy, Poland

autor

Wróbel W.

• New Chemical Syntheses Institute (INS), Al. Tysiąclecia Państwa Polskiego 13A, 24-110 Puławy, Poland

Bibliografia

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