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CO2 gasification in a dual fluidized bed reactor system: Impact on the product gas composition

Anna Magdalena Mauerhofer; Josef Fuchs; Stefan Müller; Florian Benedikt; Johannes Christian Schmid; Hermann Hofbauer


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{
  "inLanguage": {
    "alternateName": "eng", 
    "@type": "Language", 
    "name": "English"
  }, 
  "description": "<p>The use of CO<sub>2</sub> as gasification agent in the 100 kW<sub>th</sub> dual fluidized bed gasification pilot plant was investigated at TU Wien. For this purpose, steam as gasification agent was replaced stepwise by CO<sub>2</sub>. Softwood was used as fuel and olivine as bed material. Starting from 100 vol.-% steam as gasification agent, substituting it by 32, 45 and finally 68 vol.-% CO<sub>2</sub>. All loop seals were fluidized further with steam, which resulted in these volume percentages. Additionally, a CO<sub>2</sub> gasification test campaign converting softwood with a mixture (90/10 wt.-%) of olivine and limestone was investigated. For this case, the gasification agent was composed of 65 vol.-% CO<sub>2</sub> and 35 vol.-% steam. The use of CO<sub>2</sub> as gasification agent led to changes of the product gas. Instead of a H<sub>2</sub>-enriched product gas, which was produced during steam gasification, CO and CO<sub>2</sub> occupied the major share of the product gas. Consequently, the H<sub>2</sub>/CO ratios as well as the lower heating values decreased when substituting steam by CO<sub>2</sub>. Tar contents were lower for CO<sub>2</sub>/steam gasification compared to pure steam gasification.</p>", 
  "license": "https://creativecommons.org/licenses/by/4.0/legalcode", 
  "creator": [
    {
      "affiliation": "TU Wien", 
      "@id": "https://orcid.org/0000-0002-7709-8865", 
      "@type": "Person", 
      "name": "Anna Magdalena Mauerhofer"
    }, 
    {
      "affiliation": "TU Wien", 
      "@id": "https://orcid.org/0000-0002-4627-4475", 
      "@type": "Person", 
      "name": "Josef Fuchs"
    }, 
    {
      "affiliation": "TU Wien", 
      "@id": "https://orcid.org/0000-0001-8878-429X", 
      "@type": "Person", 
      "name": "Stefan M\u00fcller"
    }, 
    {
      "affiliation": "TU Wien", 
      "@id": "https://orcid.org/0000-0002-8600-1375", 
      "@type": "Person", 
      "name": "Florian Benedikt"
    }, 
    {
      "affiliation": "TU Wien", 
      "@id": "https://orcid.org/0000-0001-9381-633X", 
      "@type": "Person", 
      "name": "Johannes Christian Schmid"
    }, 
    {
      "affiliation": "TU Wien", 
      "@id": "https://orcid.org/0000-0001-6318-9072", 
      "@type": "Person", 
      "name": "Hermann Hofbauer"
    }
  ], 
  "headline": "CO2 gasification in a dual fluidized bed reactor system: Impact on the product gas composition", 
  "image": "https://zenodo.org/static/img/logos/zenodo-gradient-round.svg", 
  "datePublished": "2019-05-15", 
  "url": "https://zenodo.org/record/3233549", 
  "keywords": [
    "CO2 gasification", 
    "biomass", 
    "100 kWth pilot plant", 
    "olivine", 
    "H2/CO ratio"
  ], 
  "@context": "https://schema.org/", 
  "identifier": "https://doi.org/10.1016/j.fuel.2019.04.168", 
  "@id": "https://doi.org/10.1016/j.fuel.2019.04.168", 
  "@type": "ScholarlyArticle", 
  "name": "CO2 gasification in a dual fluidized bed reactor system: Impact on the product gas composition"
}
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