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Publication
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| Title of Article |
Quality enhancements of producer gas from cassava rhizome using high temperature air-steam downdraft gasification |
| Date of Acceptance |
26 February 2013 |
| Journal |
| Title of Journal |
American Journal of Applies Sciences |
| Standard |
|
| Institute of Journal |
Science Publications |
| ISBN/ISSN |
1546-9239 |
| Volume |
2556 |
| Issue |
10 |
| Month |
April |
| Year of Publication |
2013 |
| Page |
395-402 |
| Abstract |
High Temperature Air-Steam Gasification (HTAG) was performed on a bench-scale downdraft gasifier.
A cassava rhizome was used as feedstock for the gasification. Air and steam were utilized as the
gasifying agents. The objectives in this study were to study the potential of HTAG technology applied
with a downdraft gasifier to improve producer gas quality in terms of Higher Heating Value (HHV) and
lower tar content. The results were compared with conventional air-steam gasification (without
preheating). The results were that the HHV of the producer gas from the HTAG process at 900°C
improved by as much as 5.1 MJ/Nm
3
(at S/B ratio = 0.3), while the air-steam gasification, HTAG at
300°C and HTAG at 600°C couldonly obtain a HHV of 3.8 MJ/Nm
3
(at S/B = 0.4), 4.2 MJ/Nm
3
(at S/B =
0.1) and4.8 MJ/Nm
3
(at S/B = 0.2), respectively. In addition, tar content in the producer gas of the HTAG
process at 900°C had the lowest value (95 mg/m
3
) which could be used as fuel in an internal combustion
engine. While the minimum tar content of the air-steam gasification was 320 mg/m
3
. In the HTAG
process at 900°C, the maximum Cold Gas Efficiency (CGE) was 65%, which was slightly lower than the
CGE of air-steam gasification (69%). However, in the HTAG process at 300, 600 and 900°C the
maximum Hot Gas Efficiency (HGE) increased 33% (from 72 to 96%), 25 (from 72 to 90%) and 7 (from
72 to 77%), respectively; when compared with air-steam gasification. |
| Keyword |
Downdraft Gasifier, Cassava Rhizome, High Temperature Air-Steam Gasification (HTAG) |
| Author |
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| Reviewing Status |
มีผู้ประเมินอิสระ |
| Status |
ตีพิมพ์แล้ว |
| Level of Publication |
นานาชาติ |
| citation |
false |
| Part of thesis |
true |
| Attach file |
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| Citation |
0
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Journal Publication
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