Atomic layer deposition coated filters in catalytic filtration of gasification gas

Tyko Viertiö; Viivi Kivelä; Matti Putkonen; Johanna Kihlman; Pekka Simell

doi:10.3390/catal11060688

Atomic layer deposition coated filters in catalytic filtration of gasification gas

Tyko Viertiö^*, Viivi Kivelä, Matti Putkonen, Johanna Kihlman, Pekka Simell

^*Corresponding author for this work

BA5205 Chemical and polymer synthesis

Research output: Contribution to journal › Article › Scientific › peer-review

1 Citation (Scopus)

111 Downloads (Pure)

Abstract

Steel filter discs were catalytically activated by ALD, using a coating of supporting Al₂O₃ layer and an active NiO layer for gas cleaning. Prepared discs were tested for model biomass gasification and gas catalytic filtration to reduce or eliminate the need for a separate reforming unit for gasification gas tars and lighter hydrocarbons. Two different coating methods were tested. The method utilizing the stop-flow setting was shown to be the most suitable for the preparation of active and durable catalytic filters, which significantly decreases the amount of tar compounds in gasification gas. A pressure of 5 bar and temperatures of over 850°C are required for efficient tar reforming. In optimal conditions, applying catalytic coating to the filter resulted in a seven-fold naphthalene conversion increase from 7% to 49%.

Original language	English
Article number	688
Journal	Catalysts
Volume	11
Issue number	6
DOIs	https://doi.org/10.3390/catal11060688
Publication status	Published - Jun 2021
MoE publication type	A1 Journal article-refereed

Funding

COMSYN project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No 727476. M.P. acknowledges funding from the Academy of Finland through the profiling action on Matter and Materials, grant no. 318913.

Keywords

Atomic layer deposition (ALD)
Catalytic filtration
Gasification gas
Tar reforming

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.3390/catal11060688Licence: CC BY

catal11060688Final published version, 3.89 MBLicence: CC BY

Cite this

@article{4d242b4a50c04f7aa958e937cff2dad3,

title = "Atomic layer deposition coated filters in catalytic filtration of gasification gas",

abstract = "Steel filter discs were catalytically activated by ALD, using a coating of supporting Al2O3 layer and an active NiO layer for gas cleaning. Prepared discs were tested for model biomass gasification and gas catalytic filtration to reduce or eliminate the need for a separate reforming unit for gasification gas tars and lighter hydrocarbons. Two different coating methods were tested. The method utilizing the stop-flow setting was shown to be the most suitable for the preparation of active and durable catalytic filters, which significantly decreases the amount of tar compounds in gasification gas. A pressure of 5 bar and temperatures of over 850°C are required for efficient tar reforming. In optimal conditions, applying catalytic coating to the filter resulted in a seven-fold naphthalene conversion increase from 7\% to 49\%.",

keywords = "Atomic layer deposition (ALD), Catalytic filtration, Gasification gas, Tar reforming",

author = "Tyko Vierti{\"o} and Viivi Kivel{\"a} and Matti Putkonen and Johanna Kihlman and Pekka Simell",

note = "Publisher Copyright: {\textcopyright} 2021 by the authors. Licensee MDPI, Basel, Switzerland.",

year = "2021",

month = jun,

doi = "10.3390/catal11060688",

language = "English",

volume = "11",

journal = "Catalysts",

issn = "2073-4344",

publisher = "MDPI",

number = "6",

}

TY - JOUR

T1 - Atomic layer deposition coated filters in catalytic filtration of gasification gas

AU - Viertiö, Tyko

AU - Kivelä, Viivi

AU - Putkonen, Matti

AU - Kihlman, Johanna

AU - Simell, Pekka

PY - 2021/6

Y1 - 2021/6

N2 - Steel filter discs were catalytically activated by ALD, using a coating of supporting Al2O3 layer and an active NiO layer for gas cleaning. Prepared discs were tested for model biomass gasification and gas catalytic filtration to reduce or eliminate the need for a separate reforming unit for gasification gas tars and lighter hydrocarbons. Two different coating methods were tested. The method utilizing the stop-flow setting was shown to be the most suitable for the preparation of active and durable catalytic filters, which significantly decreases the amount of tar compounds in gasification gas. A pressure of 5 bar and temperatures of over 850°C are required for efficient tar reforming. In optimal conditions, applying catalytic coating to the filter resulted in a seven-fold naphthalene conversion increase from 7% to 49%.

AB - Steel filter discs were catalytically activated by ALD, using a coating of supporting Al2O3 layer and an active NiO layer for gas cleaning. Prepared discs were tested for model biomass gasification and gas catalytic filtration to reduce or eliminate the need for a separate reforming unit for gasification gas tars and lighter hydrocarbons. Two different coating methods were tested. The method utilizing the stop-flow setting was shown to be the most suitable for the preparation of active and durable catalytic filters, which significantly decreases the amount of tar compounds in gasification gas. A pressure of 5 bar and temperatures of over 850°C are required for efficient tar reforming. In optimal conditions, applying catalytic coating to the filter resulted in a seven-fold naphthalene conversion increase from 7% to 49%.

KW - Atomic layer deposition (ALD)

KW - Catalytic filtration

KW - Gasification gas

KW - Tar reforming

UR - https://www.scopus.com/pages/publications/85106901587

U2 - 10.3390/catal11060688

DO - 10.3390/catal11060688

M3 - Article

AN - SCOPUS:85106901587

SN - 2073-4344

VL - 11

JO - Catalysts

JF - Catalysts

IS - 6

M1 - 688

ER -

Atomic layer deposition coated filters in catalytic filtration of gasification gas

Abstract

Funding

Keywords

UN SDGs

Access to Document

Other files and links

Fingerprint

COMSYN: Compact Gasification and Synthesis process for Transport Fuels

Cite this

Atomic layer deposition coated filters in catalytic filtration of gasification gas

Abstract

Funding

Keywords

UN SDGs

Access to Document

Other files and links

Fingerprint

Projects

COMSYN: Compact Gasification and Synthesis process for Transport Fuels

Cite this