Abstract
The effect of potassium on the rate of char-CO2 gasification at 800 °C was investigated. The instantaneous rate depends on both catalyst concentration ( K C) and the internal porous structure of the solid. At low values of K C atomic ratio, the rate increases sharply with the addition of catalyst. As catalyst concentration is increased, the rate first levels off and then decreases. The levelling off is attributed to the saturation of the surface with catalytic sites. The subsequent decrease in rate seems to be due to the plugging of micropores by catalyst deposits. The reaction rate changes significantly during gasification and drops sharply before gasification is completed. The drop in rate before total conversion can be explained by catalyst accumulation and pore plugging.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 880-882 |
| Number of pages | 3 |
| Journal | Fuel |
| Volume | 62 |
| Issue number | 8 |
| DOIs | |
| State | Published - 1983 |
Fingerprint
Keywords
- carbon dioxide
- catalysis
- chars
- gasification
- potassium
ASJC Scopus subject areas
- Organic Chemistry
- Energy Engineering and Power Technology
- Fuel Technology
Cite this
Catalytic effect of potassium on the rate of char-CO2 gasification. / Sams, David A.; Shadman, Farhang.
In: Fuel, Vol. 62, No. 8, 1983, p. 880-882.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Catalytic effect of potassium on the rate of char-CO2 gasification
AU - Sams, David A.
AU - Shadman, Farhang
PY - 1983
Y1 - 1983
N2 - The effect of potassium on the rate of char-CO2 gasification at 800 °C was investigated. The instantaneous rate depends on both catalyst concentration ( K C) and the internal porous structure of the solid. At low values of K C atomic ratio, the rate increases sharply with the addition of catalyst. As catalyst concentration is increased, the rate first levels off and then decreases. The levelling off is attributed to the saturation of the surface with catalytic sites. The subsequent decrease in rate seems to be due to the plugging of micropores by catalyst deposits. The reaction rate changes significantly during gasification and drops sharply before gasification is completed. The drop in rate before total conversion can be explained by catalyst accumulation and pore plugging.
AB - The effect of potassium on the rate of char-CO2 gasification at 800 °C was investigated. The instantaneous rate depends on both catalyst concentration ( K C) and the internal porous structure of the solid. At low values of K C atomic ratio, the rate increases sharply with the addition of catalyst. As catalyst concentration is increased, the rate first levels off and then decreases. The levelling off is attributed to the saturation of the surface with catalytic sites. The subsequent decrease in rate seems to be due to the plugging of micropores by catalyst deposits. The reaction rate changes significantly during gasification and drops sharply before gasification is completed. The drop in rate before total conversion can be explained by catalyst accumulation and pore plugging.
KW - carbon dioxide
KW - catalysis
KW - chars
KW - gasification
KW - potassium
UR - http://www.scopus.com/inward/record.url?scp=0020800059&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0020800059&partnerID=8YFLogxK
U2 - 10.1016/0016-2361(83)90153-9
DO - 10.1016/0016-2361(83)90153-9
M3 - Article
AN - SCOPUS:0020800059
VL - 62
SP - 880
EP - 882
JO - Fuel
JF - Fuel
SN - 0016-2361
IS - 8
ER -