Precious metal catalysts in the clean-up of biomass gasification gas

Part 1: Monometallic catalysts and their impact on gasification gas composition

Hanne Rönkkönen (Corresponding Author), Pekka Simell, Matti Reinikainen, M. Niemelä, O. Krause

Research output: Contribution to journalArticleScientificpeer-review

12 Citations (Scopus)

Abstract

The performance of Rh, Ru, Pt, and Pd on modified commercial zirconia support (m-ZrO2) was compared to a benchmark Ni/m-ZrO2 catalyst in the presence of H2S in the clean-up of gasification gas from tar, methane, and ammonia. The aim was to produce ultra clean gas applicable for liquid biofuel production. In general, the activity towards the decomposition decreased in the order of aromatic hydrocarbons, ethylene > methane > ammonia. Hydrocarbon decomposition on m-ZrO2 supported Rh, Ni, and Ru catalysts mainly occurred at 800–900 °C through reforming and/or dealkylation reactions. Aromatic hydrocarbon decomposition reactions proceeded on Pt/m-ZrO2 and Pd/m-ZrO2 via oxidation reactions at temperatures of 600–800 °C, while at 900 °C, the reforming and/or dealkylation reactions were dominating also on Pt/m-ZrO2 and Pd/m-ZrO2 catalysts. During longer test runs of ten hours at 800 °C, the activity of the Rh/m-ZrO2 catalyst declined in the presence of 100 ppm H2S due to the sulfur poisoning effects, coke formation, and the particle size growth. Although the performance of Rh/m-ZrO2 declined, it still remained better than Ni/m-ZrO2 both towards naphthalene and total aromatic hydrocarbon, while only Ni/m-ZrO2 and Ru/m-ZrO2 decomposed ammonia in the presence of sulfur. Nevertheless, the most promising catalyst for clean gas production was Rh/m-ZrO2.
Original languageEnglish
Pages (from-to)1457-1465
Number of pages9
JournalFuel Processing Technology
Volume92
Issue number8
DOIs
Publication statusPublished - 2011
MoE publication typeA1 Journal article-refereed

Fingerprint

Precious metals
Gasification
Biomass
Aromatic Hydrocarbons
Gases
Aromatic hydrocarbons
Catalysts
Ammonia
Chemical analysis
Methane
Reforming reactions
Decomposition
Sulfur
Tars
Biofuels
Tar
Naphthalene
Hydrocarbons
Coke
Zirconia

Keywords

  • Gasification
  • Gas clean-up
  • Precious metal catalyst
  • Aromatic hydrocarbon decomposition
  • Liquid biofuels

Cite this

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title = "Precious metal catalysts in the clean-up of biomass gasification gas: Part 1: Monometallic catalysts and their impact on gasification gas composition",
abstract = "The performance of Rh, Ru, Pt, and Pd on modified commercial zirconia support (m-ZrO2) was compared to a benchmark Ni/m-ZrO2 catalyst in the presence of H2S in the clean-up of gasification gas from tar, methane, and ammonia. The aim was to produce ultra clean gas applicable for liquid biofuel production. In general, the activity towards the decomposition decreased in the order of aromatic hydrocarbons, ethylene > methane > ammonia. Hydrocarbon decomposition on m-ZrO2 supported Rh, Ni, and Ru catalysts mainly occurred at 800–900 °C through reforming and/or dealkylation reactions. Aromatic hydrocarbon decomposition reactions proceeded on Pt/m-ZrO2 and Pd/m-ZrO2 via oxidation reactions at temperatures of 600–800 °C, while at 900 °C, the reforming and/or dealkylation reactions were dominating also on Pt/m-ZrO2 and Pd/m-ZrO2 catalysts. During longer test runs of ten hours at 800 °C, the activity of the Rh/m-ZrO2 catalyst declined in the presence of 100 ppm H2S due to the sulfur poisoning effects, coke formation, and the particle size growth. Although the performance of Rh/m-ZrO2 declined, it still remained better than Ni/m-ZrO2 both towards naphthalene and total aromatic hydrocarbon, while only Ni/m-ZrO2 and Ru/m-ZrO2 decomposed ammonia in the presence of sulfur. Nevertheless, the most promising catalyst for clean gas production was Rh/m-ZrO2.",
keywords = "Gasification, Gas clean-up, Precious metal catalyst, Aromatic hydrocarbon decomposition, Liquid biofuels",
author = "Hanne R{\"o}nkk{\"o}nen and Pekka Simell and Matti Reinikainen and M. Niemel{\"a} and O. Krause",
year = "2011",
doi = "10.1016/j.fuproc.2011.03.006",
language = "English",
volume = "92",
pages = "1457--1465",
journal = "Fuel Processing Technology",
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publisher = "Elsevier",
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}

Precious metal catalysts in the clean-up of biomass gasification gas : Part 1: Monometallic catalysts and their impact on gasification gas composition. / Rönkkönen, Hanne (Corresponding Author); Simell, Pekka; Reinikainen, Matti; Niemelä, M.; Krause, O.

In: Fuel Processing Technology, Vol. 92, No. 8, 2011, p. 1457-1465.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Precious metal catalysts in the clean-up of biomass gasification gas

T2 - Part 1: Monometallic catalysts and their impact on gasification gas composition

AU - Rönkkönen, Hanne

AU - Simell, Pekka

AU - Reinikainen, Matti

AU - Niemelä, M.

AU - Krause, O.

PY - 2011

Y1 - 2011

N2 - The performance of Rh, Ru, Pt, and Pd on modified commercial zirconia support (m-ZrO2) was compared to a benchmark Ni/m-ZrO2 catalyst in the presence of H2S in the clean-up of gasification gas from tar, methane, and ammonia. The aim was to produce ultra clean gas applicable for liquid biofuel production. In general, the activity towards the decomposition decreased in the order of aromatic hydrocarbons, ethylene > methane > ammonia. Hydrocarbon decomposition on m-ZrO2 supported Rh, Ni, and Ru catalysts mainly occurred at 800–900 °C through reforming and/or dealkylation reactions. Aromatic hydrocarbon decomposition reactions proceeded on Pt/m-ZrO2 and Pd/m-ZrO2 via oxidation reactions at temperatures of 600–800 °C, while at 900 °C, the reforming and/or dealkylation reactions were dominating also on Pt/m-ZrO2 and Pd/m-ZrO2 catalysts. During longer test runs of ten hours at 800 °C, the activity of the Rh/m-ZrO2 catalyst declined in the presence of 100 ppm H2S due to the sulfur poisoning effects, coke formation, and the particle size growth. Although the performance of Rh/m-ZrO2 declined, it still remained better than Ni/m-ZrO2 both towards naphthalene and total aromatic hydrocarbon, while only Ni/m-ZrO2 and Ru/m-ZrO2 decomposed ammonia in the presence of sulfur. Nevertheless, the most promising catalyst for clean gas production was Rh/m-ZrO2.

AB - The performance of Rh, Ru, Pt, and Pd on modified commercial zirconia support (m-ZrO2) was compared to a benchmark Ni/m-ZrO2 catalyst in the presence of H2S in the clean-up of gasification gas from tar, methane, and ammonia. The aim was to produce ultra clean gas applicable for liquid biofuel production. In general, the activity towards the decomposition decreased in the order of aromatic hydrocarbons, ethylene > methane > ammonia. Hydrocarbon decomposition on m-ZrO2 supported Rh, Ni, and Ru catalysts mainly occurred at 800–900 °C through reforming and/or dealkylation reactions. Aromatic hydrocarbon decomposition reactions proceeded on Pt/m-ZrO2 and Pd/m-ZrO2 via oxidation reactions at temperatures of 600–800 °C, while at 900 °C, the reforming and/or dealkylation reactions were dominating also on Pt/m-ZrO2 and Pd/m-ZrO2 catalysts. During longer test runs of ten hours at 800 °C, the activity of the Rh/m-ZrO2 catalyst declined in the presence of 100 ppm H2S due to the sulfur poisoning effects, coke formation, and the particle size growth. Although the performance of Rh/m-ZrO2 declined, it still remained better than Ni/m-ZrO2 both towards naphthalene and total aromatic hydrocarbon, while only Ni/m-ZrO2 and Ru/m-ZrO2 decomposed ammonia in the presence of sulfur. Nevertheless, the most promising catalyst for clean gas production was Rh/m-ZrO2.

KW - Gasification

KW - Gas clean-up

KW - Precious metal catalyst

KW - Aromatic hydrocarbon decomposition

KW - Liquid biofuels

U2 - 10.1016/j.fuproc.2011.03.006

DO - 10.1016/j.fuproc.2011.03.006

M3 - Article

VL - 92

SP - 1457

EP - 1465

JO - Fuel Processing Technology

JF - Fuel Processing Technology

SN - 0378-3820

IS - 8

ER -