| Autor: |
Rozainee M; Department of Chemical Engineering, Faculty of Chemical and Natural Resources Engineering, Universiti Teknologi Malaysia, Skudai, UTM 81310, Johor Darul Ta'zim, Malaysia., Ngo SP, Salema AA, Tan KG, Ariffin M, Zainura ZN |
| Jazyk: |
angličtina |
| Zdroj: |
Bioresource technology [Bioresour Technol] 2008 Mar; Vol. 99 (4), pp. 703-13. Date of Electronic Publication: 2007 Mar 26. |
| DOI: |
10.1016/j.biortech.2007.01.049 |
| Abstrakt: |
This study was focused on investigating the optimum fluidising velocity during the combustion of rice husk in a bench-scale fluidised bed combustor (ID 210mm) to obtain low carbon ash in the amorphous form. When all other parameters are held constant, the optimum fluidizing velocity aids in almost complete combustion, thereby releasing the entrapped carbon for further conversion. This results in ash with consistently low carbon content (less than 2wt%). The range of fluidising velocities investigated was from as low as 1.5U(mf) to as high as 8U(mf). It was found that the optimum fluidising velocity was approximately 3.3U(mf) as the mixing of rice husk with the bed was good with a high degree of penetration into the sand bed. The resulting ash retained its amorphous form with low residual carbon content (at 2.88wt%) and minimal sand contamination as shown by the X-ray diffraction analysis. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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