Adsorption of Naphthalene on Activated Wood Charcoal Derived from Biomass Gasification

Abstract

During gasification and/or pyrolysis of wooden biomass, charcoal is formed as a solid intermediate or product. In CO2- and H2O-rich atmospheres at high temperatures, a high specific surface area of several 100 m2 per gram of charcoal may be reached. Common biomass gasifiers aim at a charcoal conversion of 100 %. Up to now, the option of a subsequent usage of the charcoal for adsorption of tar compounds has rarely been considered but is an interesting option to produce a clean syngas in a downstream adsorption unit. Experimental studies show an adsorption capacity of up to 0.4 g of tar per gram of charcoal using naphthalene as a model substance for tar. Respective adsorption isotherms, breakthrough curves in a fixed-bed adsorber, and a kinetic breakthrough model are presented.

Mehr zum Titel

Titel	Adsorption of Naphthalene on Activated Wood Charcoal Derived from Biomass Gasification
Medien	Chem. Eng. & Tech.
Heft	6
Band	44
Verfasser	Dr. Andy Gradel, Joachim Alfred Wünning, Prof. Dr.-Ing. Tobias Plessing, Andreas Jess
Seiten	S. 972-979
Veröffentlichungsdatum	26.02.2021
Zitation	Gradel, Andy; Wünning, Joachim Alfred; Plessing, Tobias; Jess, Andreas (2021): Adsorption of Naphthalene on Activated Wood Charcoal Derived from Biomass Gasification. Chem. Eng. & Tech. 44 (6), S. 972-979.