TY - JOUR
T1 - Estimation of dynamic change in gasification rate of chars-II. Overlapped grain model
AU - Adschiri, Tadafumi
AU - Kojima, Toshinori
AU - Furusawa, Takehiko
N1 - Funding Information:
Acknowledgements-T.F. wishes to express his thanks to the Grant-in-Aid for Energy Research (59040033, 59045201 and 60040034) of the Ministry of Education, Science and Culture, Japan. T.A. wishes to express his thanks to the Grant-m-Aid for Encouragement of Young Scientist (60790052) of the Ministry of Education, Science and Culture, Japan.
PY - 1987
Y1 - 1987
N2 - Structure model of solids which considers the change in degree of overlapping of grains with progress of the solid consumption reaction on the surface of the grain was presented. The proposed model can describe the dynamic change in surface area which first increases to the maximum and then decreases during char gasification using only the initial porosity and the initial surface area. The proposed model together with the previous models was compared with the experimentally observed dynamic change in surface area during gasification. This model can explain the experimental result (Adschiri and Furusawa, 1987) that the maximum surface area was obtained at the porosity of around 0.5.
AB - Structure model of solids which considers the change in degree of overlapping of grains with progress of the solid consumption reaction on the surface of the grain was presented. The proposed model can describe the dynamic change in surface area which first increases to the maximum and then decreases during char gasification using only the initial porosity and the initial surface area. The proposed model together with the previous models was compared with the experimentally observed dynamic change in surface area during gasification. This model can explain the experimental result (Adschiri and Furusawa, 1987) that the maximum surface area was obtained at the porosity of around 0.5.
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U2 - 10.1016/0009-2509(87)85005-4
DO - 10.1016/0009-2509(87)85005-4
M3 - Article
AN - SCOPUS:0023248946
SN - 0009-2509
VL - 42
SP - 1319
EP - 1322
JO - Chemical Engineering Science
JF - Chemical Engineering Science
IS - 6
ER -