Study of the activity of catalysts for the production of high quality biomass gasification gas: with emphasis on Ni-substituted Ba-hexaaluminates

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Parsland, CharlotteLinnéuniversitetet,Institutionen för byggd miljö och energiteknik (BET) (författare)

Study of the activity of catalysts for the production of high quality biomass gasification gas : with emphasis on Ni-substituted Ba-hexaaluminates

BokEngelska2016

Förlag, utgivningsår, omfång ...

Linnaeus University,2016
72 s.
electronicrdacarrier

Nummerbeteckningar

LIBRIS-ID:oai:DiVA.org:lnu-55702
ISBN:9789188357359
https://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-55702URI

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Språk:engelska
Sammanfattning på:engelska

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Ämneskategori:vet swepub-contenttype
Ämneskategori:lic swepub-publicationtype

Serie

Faculty of Technology, Report ;45

Anmärkningar

The fossil hydrocarbons are not inexhaustible, and their use is not without impact in our need of energy, fuels and hydrocarbons as building blocks for organic materials. The quest for renewable, environmentally more friendly technologies are in need and woody biomass is a promising candidate, well provided in the boreal parts of the world. To convert the constituents of wood into valuable gaseous products, suitable for the end use required, we need a reliable gasification technology. But to become an industrial application on full scale there are still a few issues to take into account since the presence of contaminants in the process gas will pose several issues, both technical and operational, for instance by corrosion, fouling and catalyst deactivation. Furthermore the downstream applications may have very stringent needs for syngas cleanliness depending on its use. Therefore, the levels of contaminants must be decreased by gas cleanup to fulfil the requirements of the downstream applications.One of the most prominent problems in biomass gasification is the formation of tars – an organic byproduct in the degradation of larger hydrocarbons. So, tar degrading catalysts are needed in order to avoid tar related operational problems such as fouling but also reduced conversion efficiency. Deactivation of catalysts is generally inevitable, but the process may be slowed or even prevented. Catalysts are often very sensitive to poisonous compounds in the process gas, but also to the harsh conditions in the gasifier, risking problems as coke formation and attrition. Alongside with having to be resistant to any physical and chemical damage, the catalyst also needs to have high selectivity and conversion rate, which would result in a more or less tar-free gas. Commercial tar reforming catalysts of today often contain nickel as the active element, but also often display a moderate to rapid deactivation due to the causes mentioned.

Ämnesord och genrebeteckningar

TEKNIK OCH TEKNOLOGIER Industriell bioteknik Bioenergi hsv//swe
ENGINEERING AND TECHNOLOGY Industrial Biotechnology Bioenergy hsv//eng
TEKNIK OCH TEKNOLOGIER Kemiteknik Annan kemiteknik hsv//swe
ENGINEERING AND TECHNOLOGY Chemical Engineering Other Chemical Engineering hsv//eng
bioenergy
catalysis
tars
steam reforming
gasification
hexaaluminate
bioenergi
katalys
tjäror
ångreformering
förgasning
hexaaluminat
Bioenergiteknik/Energi- och Miljöteknik
Bioenergy Technology
Kemi
Chemistry

Biuppslag (personer, institutioner, konferenser, titlar ...)

Brandin, JanLinnéuniversitetet,Institutionen för byggd miljö och energiteknik (BET) (preses)
Holmen, AndersNorges teknisk-naturvitenskapelige universitet, Norge (opponent)
LinnéuniversitetetInstitutionen för byggd miljö och energiteknik (BET) (creator_code:org_t)

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Av författaren/redakt...: Parsland, Charlo ...; Brandin, Jan; Holmen, Anders

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TEKNIK OCH TEKNOLOGIER: TEKNIK OCH TEKNO ...; och Industriell biot ...; och Bioenergi

TEKNIK OCH TEKNOLOGIER: TEKNIK OCH TEKNO ...; och Kemiteknik; och Annan kemiteknik

Delar i serien: Faculty of Techn ...

Av lärosätet: Linnéuniversitetet

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