Carbon formation in catalytic steam reforming of natural gas with SOFC anode off-gas

Research output: Contribution to journalArticleScientificpeer-review

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Abstract

Natural gas was reformed with anode off-gas of a solid oxide fuel cell (SOFC) in a laboratory reactor using model gases. Nickel and precious metal catalysts were tested at 650 °C and 700 °C inlet temperature. The oxygen to carbon (O/C) molar ratio of the inlet gas was varied between 0.3 and 2.0 to find out the limit O/C ratio for carbon formation. Two natural gas compositions were used: low purity Danish gas and high purity Russian gas. The experimental limit was found to be 0.9-1.25 for nickel catalyst and 0.5-0.75 for precious metal catalyst. The limit was higher with Danish gas than with Russian gas in the experiments with nickel catalyst but this effect was not observed with the precious metal catalyst. A good correlation between experimental results and thermodynamic calculations was found using the principle of actual gas: the calculations estimated the O/C limit ratio for nickel at 1.0 and for precious metal catalyst between 0.5 and 0.7.
Original languageEnglish
Pages (from-to)1548-1558
JournalInternational Journal of Hydrogen Energy
Volume40
Issue number3
DOIs
Publication statusPublished - 2015
MoE publication typeA1 Journal article-refereed

Fingerprint

Catalytic reforming
cell anodes
Steam reforming
natural gas
solid oxide fuel cells
Solid oxide fuel cells (SOFC)
steam
Natural gas
Anodes
Carbon
carbon
Precious metals
noble metals
Gases
gases
catalysts
Catalysts
Nickel
nickel
Oxygen

Keywords

  • anode off-gas recycling
  • reforming
  • precious metal catalyst
  • nickel catalyst
  • carbon formation
  • solid oxide fuel cell

Cite this

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title = "Carbon formation in catalytic steam reforming of natural gas with SOFC anode off-gas",
abstract = "Natural gas was reformed with anode off-gas of a solid oxide fuel cell (SOFC) in a laboratory reactor using model gases. Nickel and precious metal catalysts were tested at 650 °C and 700 °C inlet temperature. The oxygen to carbon (O/C) molar ratio of the inlet gas was varied between 0.3 and 2.0 to find out the limit O/C ratio for carbon formation. Two natural gas compositions were used: low purity Danish gas and high purity Russian gas. The experimental limit was found to be 0.9-1.25 for nickel catalyst and 0.5-0.75 for precious metal catalyst. The limit was higher with Danish gas than with Russian gas in the experiments with nickel catalyst but this effect was not observed with the precious metal catalyst. A good correlation between experimental results and thermodynamic calculations was found using the principle of actual gas: the calculations estimated the O/C limit ratio for nickel at 1.0 and for precious metal catalyst between 0.5 and 0.7.",
keywords = "anode off-gas recycling, reforming, precious metal catalyst, nickel catalyst, carbon formation, solid oxide fuel cell",
author = "Johanna Kihlman and Juli Sucipto and Noora Kaisalo and Pekka Simell and Juha Lehtonen",
year = "2015",
doi = "10.1016/j.ijhydene.2014.11.074",
language = "English",
volume = "40",
pages = "1548--1558",
journal = "International Journal of Hydrogen Energy",
issn = "0360-3199",
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Carbon formation in catalytic steam reforming of natural gas with SOFC anode off-gas. / Kihlman, Johanna; Sucipto, Juli; Kaisalo, Noora; Simell, Pekka; Lehtonen, Juha.

In: International Journal of Hydrogen Energy, Vol. 40, No. 3, 2015, p. 1548-1558.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Carbon formation in catalytic steam reforming of natural gas with SOFC anode off-gas

AU - Kihlman, Johanna

AU - Sucipto, Juli

AU - Kaisalo, Noora

AU - Simell, Pekka

AU - Lehtonen, Juha

PY - 2015

Y1 - 2015

N2 - Natural gas was reformed with anode off-gas of a solid oxide fuel cell (SOFC) in a laboratory reactor using model gases. Nickel and precious metal catalysts were tested at 650 °C and 700 °C inlet temperature. The oxygen to carbon (O/C) molar ratio of the inlet gas was varied between 0.3 and 2.0 to find out the limit O/C ratio for carbon formation. Two natural gas compositions were used: low purity Danish gas and high purity Russian gas. The experimental limit was found to be 0.9-1.25 for nickel catalyst and 0.5-0.75 for precious metal catalyst. The limit was higher with Danish gas than with Russian gas in the experiments with nickel catalyst but this effect was not observed with the precious metal catalyst. A good correlation between experimental results and thermodynamic calculations was found using the principle of actual gas: the calculations estimated the O/C limit ratio for nickel at 1.0 and for precious metal catalyst between 0.5 and 0.7.

AB - Natural gas was reformed with anode off-gas of a solid oxide fuel cell (SOFC) in a laboratory reactor using model gases. Nickel and precious metal catalysts were tested at 650 °C and 700 °C inlet temperature. The oxygen to carbon (O/C) molar ratio of the inlet gas was varied between 0.3 and 2.0 to find out the limit O/C ratio for carbon formation. Two natural gas compositions were used: low purity Danish gas and high purity Russian gas. The experimental limit was found to be 0.9-1.25 for nickel catalyst and 0.5-0.75 for precious metal catalyst. The limit was higher with Danish gas than with Russian gas in the experiments with nickel catalyst but this effect was not observed with the precious metal catalyst. A good correlation between experimental results and thermodynamic calculations was found using the principle of actual gas: the calculations estimated the O/C limit ratio for nickel at 1.0 and for precious metal catalyst between 0.5 and 0.7.

KW - anode off-gas recycling

KW - reforming

KW - precious metal catalyst

KW - nickel catalyst

KW - carbon formation

KW - solid oxide fuel cell

U2 - 10.1016/j.ijhydene.2014.11.074

DO - 10.1016/j.ijhydene.2014.11.074

M3 - Article

VL - 40

SP - 1548

EP - 1558

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

SN - 0360-3199

IS - 3

ER -