Tar conversion and recombination in steam gasification of biogenic residues: the influence of a countercurrent flow column in pilot- and demonstration-scale

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Huber, MiriamBEST – Bioenergy and Sustainable Technologies GmbH, Inffeldgasse 21b, Graz, Austria; TU Wien, Institute of Chemical, Environmental and Bioscience Engineering, Getreidemarkt 9/166, Vienna, Austria (author)

Tar conversion and recombination in steam gasification of biogenic residues : the influence of a countercurrent flow column in pilot- and demonstration-scale

Article/chapterEnglish2024

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Elsevier,2024
electronicrdacarrier

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LIBRIS-ID:oai:DiVA.org:umu-220472
https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-220472URI
https://doi.org/10.1016/j.fuel.2024.131068DOI

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Language:English
Summary in:English

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Subject category:ref swepub-contenttype
Subject category:art swepub-publicationtype

Notes

First experiments with biogenic residues and a plastic-rich rejects and woody biomass blend were conducted in an advanced 1 MW dual fluidized bed steam gasification demonstration plant at the Syngas Platform Vienna. Wood chips, bark, forest residues, and the plastic-rich rejects and woody biomass blend were tested and the tar composition was analyzed upstream and downstream of the upper gasification reactor, which is designed as a high-temperature column with countercurrent flow of catalytic material. Each feedstock was gasified with olivine as bed material in demonstration scale and is compared to the gasification of softwood pellets with olivine and limestone in pilot scale. A reduction in tar content was observed after countercurrent column for all feedstocks. However, a shift in tar species occurred. While styrene, phenol, and 1H-indene were predominant upstream, naphthalene and polycyclic aromatic hydrocarbons (PAHs) were the prevailing tar species downstream the countercurrent column. Hence, an increase of i.e. anthracene, fluoranthene, and pyrene from the upstream concentration was observed. For pyrene, up to twice the initial concentration was measured. This recombination to PAHs was observed for all feedstocks in demonstration- and pilot-scale. The only exception occurred with limestone as bed material, characterized by a higher catalytic activity in comparison to the typically used olivine. In the perspective of the integrated product gas cleaning, tar with higher temperature of condensation are separated more efficiently in the installed scrubbing unit. Hence, the recombination facilitates an overall decline of tar content after the gas cleaning.

Subject headings and genre

TEKNIK OCH TEKNOLOGIER Maskinteknik Energiteknik hsv//swe
ENGINEERING AND TECHNOLOGY Mechanical Engineering Energy Engineering hsv//eng
TEKNIK OCH TEKNOLOGIER Industriell bioteknik Bioenergi hsv//swe
ENGINEERING AND TECHNOLOGY Industrial Biotechnology Bioenergy hsv//eng
Bark
Dual fluidized bed gasification
Plastic rejects
Polycyclic aromatic hydrocarbons (PAH)
Tar mitigation

Added entries (persons, corporate bodies, meetings, titles ...)

Benedikt, FlorianTU Wien, Institute of Chemical, Environmental and Bioscience Engineering, Getreidemarkt 9/166, Vienna, Austria (author)
Karel, ThomasBEST – Bioenergy and Sustainable Technologies GmbH, Inffeldgasse 21b, Graz, Austria; TU Wien, Institute of Chemical, Environmental and Bioscience Engineering, Getreidemarkt 9/166, Vienna, Austria (author)
Binder, MatthiasBEST – Bioenergy and Sustainable Technologies GmbH, Inffeldgasse 21b, Graz, Austria; TU Wien, Institute of Chemical, Environmental and Bioscience Engineering, Getreidemarkt 9/166, Vienna, Austria (author)
Hochstöger, DanielBEST – Bioenergy and Sustainable Technologies GmbH, Inffeldgasse 21b, Graz, Austria; TU Wien, Institute of Chemical, Environmental and Bioscience Engineering, Getreidemarkt 9/166, Vienna, Austria (author)
Egger, AnnaBEST – Bioenergy and Sustainable Technologies GmbH, Inffeldgasse 21b, Graz, Austria; TU Wien, Institute of Chemical, Environmental and Bioscience Engineering, Getreidemarkt 9/166, Vienna, Austria (author)
Fürsatz, KatharinaUmeå universitet,Institutionen för tillämpad fysik och elektronik,BEST – Bioenergy and Sustainable Technologies GmbH, Inffeldgasse 21b, Graz, Austria(Swepub:umu)kafr0130 (author)
Kuba, MatthiasBEST – Bioenergy and Sustainable Technologies GmbH, Inffeldgasse 21b, Graz, Austria (author)
BEST – Bioenergy and Sustainable Technologies GmbH, Inffeldgasse 21b, Graz, Austria; TU Wien, Institute of Chemical, Environmental and Bioscience Engineering, Getreidemarkt 9/166, Vienna, AustriaTU Wien, Institute of Chemical, Environmental and Bioscience Engineering, Getreidemarkt 9/166, Vienna, Austria (creator_code:org_t)

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ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Mechanical Engin ...; and Energy Engineeri ...

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Industrial Biote ...; and Bioenergy

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