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Biological chemical regeneration of desulphurization sorbents based on zinc ferrite

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Title: Biological chemical regeneration of desulphurization sorbents based on zinc ferrite
Authors: Šepelák Vladimír, Vašková Helena, Boldižárová Eva, Kušnierová Mária
Source: Acta Montanistica Slovaca, Vol 7, Iss 1, Pp 55-59 (2002)
Publisher Information: Technical University of Kosice, 2002.
Publication Year: 2002
Collection: LCC:Mining engineering. Metallurgy
LCC:Geology
Subject Terms: desulphurization, bioregeneration, Thiobacillus ferrooxidans, zinc ferrite, Mining engineering. Metallurgy, TN1-997, Geology, QE1-996.5
More Details: One of the main sources of air pollution is the combustion of fuels by various thermal and power plants, transport facilities, and metallurgical plants. Main components of industrial gases that pollute air are carbon oxides, nitrogen oxides, sulphur oxides and hydrogen sulphide. Sulphur has received a more attention than any other contaminant, because the sulphur released into the atmosphere in the form of sulphur dioxide or hydrogen sulphide is a precursor of the acid rain formation. To meet environmental emission regulations, sulphur and other contaminant species released during the gasification of coal must be removed from the fuel gas stream. The removal of contaminat at high temperatures is referred to as hot-gas cleanup in general and hot-gas desulphurization in particular when sulphur species are the primary contaminants to be remove. In recent years, zinc ferrite is the leading candidate for hot-gas desulphurization, capable of removing sulphur-containing species from coal gas at gasifier exit temperatures. It can also be of being regenerated for a continuous use. The conventional methods of the regeneration of sulphurized sorbents are based on oxidizing pyrolysis of sulphides or on the pressure leaching of sulphides in the water environment at high temperatures. The first results of the experiments using the biological-chemical leaching, as a new way of regeneration of sulphurized sorbent based on zinc ferrite, are presented in this paper. The results show that the biological-chemical leaching leads to the removal of sulphides layers (á-ZnS, â-ZnS) from the surface of the sorbent at room temperature. The biological-chemical leaching process results in the increase of the active surface area of the regenerated sorbent.
Document Type: article
File Description: electronic resource
Language: English
Slovak
ISSN: 1335-1788
Relation: http://actamont.tuke.sk/pdf/2002/n1/13kusnierovaetal.pdf; https://doaj.org/toc/1335-1788
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  Data: Biological chemical regeneration of desulphurization sorbents based on zinc ferrite
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  Data: <searchLink fieldCode="AR" term="%22Šepelák+Vladimír%22">Šepelák Vladimír</searchLink><br /><searchLink fieldCode="AR" term="%22Vašková+Helena%22">Vašková Helena</searchLink><br /><searchLink fieldCode="AR" term="%22Boldižárová+Eva%22">Boldižárová Eva</searchLink><br /><searchLink fieldCode="AR" term="%22Kušnierová+Mária%22">Kušnierová Mária</searchLink>
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  Data: Acta Montanistica Slovaca, Vol 7, Iss 1, Pp 55-59 (2002)
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  Data: Technical University of Kosice, 2002.
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  Data: 2002
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  Data: LCC:Mining engineering. Metallurgy<br />LCC:Geology
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  Data: <searchLink fieldCode="DE" term="%22desulphurization%22">desulphurization</searchLink><br /><searchLink fieldCode="DE" term="%22bioregeneration%22">bioregeneration</searchLink><br /><searchLink fieldCode="DE" term="%22Thiobacillus+ferrooxidans%22">Thiobacillus ferrooxidans</searchLink><br /><searchLink fieldCode="DE" term="%22zinc+ferrite%22">zinc ferrite</searchLink><br /><searchLink fieldCode="DE" term="%22Mining+engineering%2E+Metallurgy%22">Mining engineering. Metallurgy</searchLink><br /><searchLink fieldCode="DE" term="%22TN1-997%22">TN1-997</searchLink><br /><searchLink fieldCode="DE" term="%22Geology%22">Geology</searchLink><br /><searchLink fieldCode="DE" term="%22QE1-996%2E5%22">QE1-996.5</searchLink>
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  Label: Description
  Group: Ab
  Data: One of the main sources of air pollution is the combustion of fuels by various thermal and power plants, transport facilities, and metallurgical plants. Main components of industrial gases that pollute air are carbon oxides, nitrogen oxides, sulphur oxides and hydrogen sulphide. Sulphur has received a more attention than any other contaminant, because the sulphur released into the atmosphere in the form of sulphur dioxide or hydrogen sulphide is a precursor of the acid rain formation. To meet environmental emission regulations, sulphur and other contaminant species released during the gasification of coal must be removed from the fuel gas stream. The removal of contaminat at high temperatures is referred to as hot-gas cleanup in general and hot-gas desulphurization in particular when sulphur species are the primary contaminants to be remove. In recent years, zinc ferrite is the leading candidate for hot-gas desulphurization, capable of removing sulphur-containing species from coal gas at gasifier exit temperatures. It can also be of being regenerated for a continuous use. The conventional methods of the regeneration of sulphurized sorbents are based on oxidizing pyrolysis of sulphides or on the pressure leaching of sulphides in the water environment at high temperatures. The first results of the experiments using the biological-chemical leaching, as a new way of regeneration of sulphurized sorbent based on zinc ferrite, are presented in this paper. The results show that the biological-chemical leaching leads to the removal of sulphides layers (á-ZnS, â-ZnS) from the surface of the sorbent at room temperature. The biological-chemical leaching process results in the increase of the active surface area of the regenerated sorbent.
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  Data: http://actamont.tuke.sk/pdf/2002/n1/13kusnierovaetal.pdf; https://doaj.org/toc/1335-1788
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RecordInfo BibRecord:
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    Languages:
      – Text: English
      – Text: Slovak
    PhysicalDescription:
      Pagination:
        PageCount: 5
        StartPage: 55
    Subjects:
      – SubjectFull: desulphurization
        Type: general
      – SubjectFull: bioregeneration
        Type: general
      – SubjectFull: Thiobacillus ferrooxidans
        Type: general
      – SubjectFull: zinc ferrite
        Type: general
      – SubjectFull: Mining engineering. Metallurgy
        Type: general
      – SubjectFull: TN1-997
        Type: general
      – SubjectFull: Geology
        Type: general
      – SubjectFull: QE1-996.5
        Type: general
    Titles:
      – TitleFull: Biological chemical regeneration of desulphurization sorbents based on zinc ferrite
        Type: main
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            NameFull: Šepelák Vladimír
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            NameFull: Vašková Helena
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            NameFull: Boldižárová Eva
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            NameFull: Kušnierová Mária
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            – D: 01
              M: 03
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              Y: 2002
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            – TitleFull: Acta Montanistica Slovaca
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