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Dergiler / International Journal of Thermodynamics / 2012 / Cilt: 15 - Sayı: 1

Experimental investigation of the absorption enhanced reforming of biomass in a 20 $kW _{th}$ dual fluidized bed system

Mariusz ZIEBA
Günter SCHEFFKNECHT
Norman POBOSS
Karolina SWIECKI
Alexander CHARITOS
Craig HAWTHORNE
Sayfa
53–59
Yayın Tarihi
2022-10-18
DOI
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It shows also that beyond a certain value of this parameter, the tar and gas composition is stabilized.

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Amaç & Hipotez:A gasification product gas with a hydrogen content over 75 vol-%db and a heating value of 15 MJ/$m^3 _{STP,db}$ has been obtained through the absorption enhanced reforming of biomass.
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Temel Bulgular & Veri:In the DFB system, the Ca - looping ratio is an important parameter defined as the ratio of the molar flow rate of regenerated sorbent ($F _{Ca}$) and carbon (Fc) which enters the gasifier as fuel.
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Sonuç & Katkı:It shows also that beyond a certain value of this parameter, the tar and gas composition is stabilized.
🔬Tür:Araştırma Makalesi
📍Kapsam:Genişletilmiş Akademik Örneklem
⚙️Değişkenler:Alan Parametreleri

Abstract

A gasification product gas with a hydrogen content over 75 vol-%db and a heating value of 15 MJ/$m^3 _{STP,db}$ 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 ($F _{Ca}$) and carbon (Fc) which enters the gasifier as fuel. A special feature of the 20 $kW _{th}$ DFB test facility at IFK is the Ca - looping rate control through a cone valve. Therefore, the Ca - looping ratio ($F _{Ca}$/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 $CO _2$ 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.

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Bu Makaleye Atıf Yap

ZIEBA, M., SCHEFFKNECHT, G., POBOSS, N., SWIECKI, K., CHARITOS, A., HAWTHORNE, C. (2022). Experimental investigation of the absorption enhanced reforming of biomass in a 20 $kW _{th}$ dual fluidized bed system. International Journal of Thermodynamics, Cilt: 15 - Sayı: 1, 53–59. https://ajindex.com/articles/541869

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Kaynakça (6)

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