TUHH Open Research
Help
  • Log In
    New user? Click here to register.Have you forgotten your password?
  • English
  • Deutsch
  • Communities & Collections
  • Publications
  • Research Data
  • People
  • Institutions
  • Projects
  • Statistics
  1. Home
  2. TUHH
  3. Publication References
  4. Dried chitosan-gels as organocatalysts for the production of biomass-derived platform chemicals
 
Options

Dried chitosan-gels as organocatalysts for the production of biomass-derived platform chemicals

Publikationstyp
Journal Article
Date Issued
2012-08-24
Sprache
English
Author(s)
Kayser, Henning  
Müller, Christoph  
García-González, Carlos A.  
Smirnova, Irina  orcid-logo
Leitner, Walter  
Domínguez de María, Pablo  
Institut
Thermische Verfahrenstechnik V-8  
TORE-URI
http://hdl.handle.net/11420/12537
Journal
Applied catalysis  
Volume
445/446
Start Page
180
End Page
186
Citation
Applied Catalysis A: General 445/446: 180-186 (2012-11-28)
Publisher DOI
10.1016/j.apcata.2012.08.014
Scopus ID
2-s2.0-84870311933
Publisher
Elsevier Science
Aldol condensations between sugar-derived dehydrated aldehydes (e.g. furfural) and acetone have been proposed as a route to provide useful biomass-derived chemicals. In the quest of sustainable catalytic ways for such aldol condensations, this paper assesses the use of dried chitosan-gels as naturally-immobilized, readily available and non-hazardous amino-based organocatalysts. At room temperature chitosan dried gels are not suitable catalysts for the desired reaction. However, at higher temperatures (>90 °C) reaction proceeds efficiently either in solvent-free systems (with addition of catalytic amounts of water) or in water. The set-up of closed reactor set-ups (thermoshakers or microwave reactions) proved highly beneficial for the reaction outcome. Furthermore, chitosan dried gels were successfully re-used for a number of cycles. An efficient catalyst drying method (either lyophilization or scCO2 drying) was crucial to achieve virtually full conversions in 4 h. After pertinent further process optimization, dried chitosan-gels may become very useful catalysts for their use in biomass-based reactions in biorefineries.
Subjects
Aerogels
Biofuels
Biorefineries
Chitosan
Furfural
Gasoline
DDC Class
600: Technik
More Funding Information
This work was performed as part of the Cluster of Excellence “Tailor-Made Fuels from Biomass”, which is funded by the Excellence Initiative of the German Research Foundation to promote science and research at German universities.
TUHH
Weiterführende Links
  • Contact
  • Send Feedback
  • Cookie settings
  • Privacy policy
  • Impress
DSpace Software

Built with DSpace-CRIS software - Extension maintained and optimized by 4Science
Design by effective webwork GmbH

  • Deutsche NationalbibliothekDeutsche Nationalbibliothek
  • ORCiD Member OrganizationORCiD Member Organization
  • DataCiteDataCite
  • Re3DataRe3Data
  • OpenDOAROpenDOAR
  • OpenAireOpenAire
  • BASE Bielefeld Academic Search EngineBASE Bielefeld Academic Search Engine
Feedback