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Conversion of Liquefied Hydrocarbon Gases on Industrial Nickel Catalysts

Authors
  • Yakovenko, R. E.1
  • Il’in, V. B.1
  • Savost’yanov, A. P.1
  • Zubkov, I. N.1
  • Dul’nev, A. V.2
  • Semenov, O. A.3
  • 1 Platov South Russian State Polytechnic University (NPI), Novocherkassk, 346428, Russia , Novocherkassk (Russia)
  • 2 NIAP Katalizator, Novomoskovsk, 301660, Russia , Novomoskovsk (Russia)
  • 3 EPM-NEZ, Novocherkassk, Novocherkassk, 346413, Russia , Novocherkassk (Russia)
Type
Published Article
Journal
Catalysis in Industry
Publisher
Pleiades Publishing
Publication Date
Apr 01, 2020
Volume
12
Issue
2
Pages
119–126
Identifiers
DOI: 10.1134/S2070050420020117
Source
Springer Nature
Keywords
License
Yellow

Abstract

Abstract—The two-stage conversion of industrial liquefied hydrocarbon gases (LHGs) on NIAP-07-01 (NKM-1) and NIAP-03-01 catalysts is studied to obtain hydrogen-containing gases. The experiments are performed in flow reactors with fixed catalyst layers at a pressure of 0.1 MPa under the conditions of pre-reforming: temperature, 350–450°С; GHSV = 1000–3000 h−1; steam : gas ratio, (4 : 1)–(8 : 1). For steam–air reforming: temperature, 700°С; GHSV = 2000 h–1; air : gas ratio, 1.2 : 1. The concentrations of converted gas components under these conditions correspond to equilibrium values calculated using the Peng–Robinson model. The conversion of methane homologs is almost 100% during the pre-reforming stage, while the concentrations of methane and hydrogen are 32–54 and 24–47%, respectively. The main condition for the pre-reforming of hydrocarbon gases with a high methane equivalent is a Н2О : С ratio greater than 2 to avoid the formation of elemental carbon (carbonization). The yield of hydrogen-containing gas during two-stage reforming is 15.6 m3, obtained from 1 m3 of initial LHGs with a hydrogen content of 41.81%, and the total amount of CO and H2 is more than 52%.

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