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- Title
Hydrothermal Carbonization of Lignin with Vanillin as a Model Component.
- Authors
Curtze, Jan HENning; Bär, Fabian; Steffan, Jörg; Dörr, Timo; Vogel, Herbert
- Abstract
Hydrothermal carbonization (HTC) is one possibility to concentrate energy of wet biomass in so-called hydrochar. To design technical HTC reactors in a rational way, the reaction kinetics of the four main components of biomass, i.e., carbohydrates, lignin, fats/oils, and proteins, should be known. To determine the kinetics of hydrochar functionalization, initially an appropriate analytical method must be developed. In the presented experiments, the hydrochar obtained by HTC of vanillin is investigated by diffuse reflectance infrared (IR) Fourier transform spectroscopy (DRIFTS). In order to assign the IR bands in the DRIFT spectra to different functional groups, temperature-programmed desorption (TPD) experiments are conducted, followed by a combination of DRIFTS and TPD. This TPD/DRIFT combination is applied as an analytical method to investigate the kinetics of hydrochar functionalization during HTC.
- Subjects
LIGNINS; HYDROTHERMAL carbonization; BIOMASS conversion; BIOMASS; FOURIER transform infrared spectroscopy
- Publication
Chemical Engineering & Technology, 2017, Vol 40, Issue 6, p1190
- ISSN
0930-7516
- Publication type
Article
- DOI
10.1002/ceat.201600090