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Experimental investigation of the absorption enhanced reforming of biomass in a 20 kWth dual fluidized bed system

Year 2012, Volume: 15 Issue: 1, 53 - 59, 10.02.2012

Norman Poboss Karolina Swiecki Alexander Charitos Craig Hawthorne Mariusz Zieba Günter Scheffknecht

Abstract

A gasification product gas with a hydrogen content over 75 vol-%db and a heating value of 15 MJ/m³STP,db has been obtained through the absorption enhanced reforming of biomass. The Absorption Enhanced Reforming (AER) process involves a Dual Fluidized Bed (DFB) system consisting of a gasifier and a regenerator (calciner). In the DFB system, the Ca - looping ratio is an important parameter defined as the ratio of the molar flow rate of regenerated sorbent (FCa) and carbon (Fc) which enters the gasifier as fuel. A special feature of the 20 kWth DFB test facility at IFK is the Ca - looping rate control through a cone valve. Therefore, the Ca - looping ratio  (FCa/FC)  was varied between a value of  2 and 12 molCaO/molC to investigate its influence on the cold gas efficiency, product gas yield, yield of gas components and gravimetric tar concentration during the AER of biomass. The experiments were carried out with wood pellets and a Greek limestone as CO2 sorbent. The experimental work shows a clear influence of the Ca - looping ratio on the AER process. It shows also that beyond a certain value of this parameter, the tar and gas composition is stabilized.

 


 

Keywords

Steam gasification Biomass Tar Dual fluidized bed gasifier CO2 capture Hydrogen

Year 2012, Volume: 15 Issue: 1, 53 - 59, 10.02.2012

Norman Poboss Karolina Swiecki Alexander Charitos Craig Hawthorne Mariusz Zieba Günter Scheffknecht

Abstract

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Details

Primary Language English
Journal Section Invited ECOS 2010 Paper for ECOS Special Issue
Authors

Norman Poboss

Karolina Swiecki This is me

Alexander Charitos This is me

Craig Hawthorne This is me

Mariusz Zieba This is me

Günter Scheffknecht This is me

Publication Date February 10, 2012
Published in Issue Year 2012 Volume: 15 Issue: 1

Cite

APA Poboss, N., Swiecki, K., Charitos, A., Hawthorne, C., et al. (2012). Experimental investigation of the absorption enhanced reforming of biomass in a 20 kWth dual fluidized bed system. International Journal of Thermodynamics, 15(1), 53-59.
AMA Poboss N, Swiecki K, Charitos A, Hawthorne C, Zieba M, Scheffknecht G. Experimental investigation of the absorption enhanced reforming of biomass in a 20 kWth dual fluidized bed system. International Journal of Thermodynamics. February 2012;15(1):53-59.
Chicago Poboss, Norman, Karolina Swiecki, Alexander Charitos, Craig Hawthorne, Mariusz Zieba, and Günter Scheffknecht. “Experimental Investigation of the Absorption Enhanced Reforming of Biomass in a 20 KWth Dual Fluidized Bed System”. International Journal of Thermodynamics 15, no. 1 (February 2012): 53-59.
EndNote Poboss N, Swiecki K, Charitos A, Hawthorne C, Zieba M, Scheffknecht G (February 1, 2012) Experimental investigation of the absorption enhanced reforming of biomass in a 20 kWth dual fluidized bed system. International Journal of Thermodynamics 15 1 53–59.
IEEE N. Poboss, K. Swiecki, A. Charitos, C. Hawthorne, M. Zieba, and G. Scheffknecht, “Experimental investigation of the absorption enhanced reforming of biomass in a 20 kWth dual fluidized bed system”, International Journal of Thermodynamics, vol. 15, no. 1, pp. 53–59, 2012.
ISNAD Poboss, Norman et al. “Experimental Investigation of the Absorption Enhanced Reforming of Biomass in a 20 KWth Dual Fluidized Bed System”. International Journal of Thermodynamics 15/1 (February 2012), 53-59.
JAMA Poboss N, Swiecki K, Charitos A, Hawthorne C, Zieba M, Scheffknecht G. Experimental investigation of the absorption enhanced reforming of biomass in a 20 kWth dual fluidized bed system. International Journal of Thermodynamics. 2012;15:53–59.
MLA Poboss, Norman et al. “Experimental Investigation of the Absorption Enhanced Reforming of Biomass in a 20 KWth Dual Fluidized Bed System”. International Journal of Thermodynamics, vol. 15, no. 1, 2012, pp. 53-59.
Vancouver Poboss N, Swiecki K, Charitos A, Hawthorne C, Zieba M, Scheffknecht G. Experimental investigation of the absorption enhanced reforming of biomass in a 20 kWth dual fluidized bed system. International Journal of Thermodynamics. 2012;15(1):53-9.