MODELING CHAR OXIDATION AS A FUNCTION OF PRESSURE ...
MODELING CHAR OXIDATION AS A FUNCTION OF PRESSURE ...
MODELING CHAR OXIDATION AS A FUNCTION OF PRESSURE ...
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Table A.5. Moisture, Ash and ICP Mass Release Data for Koonfontain Chars<br />
at Greater Sampling Heights<br />
Name of coal Koonfontain<br />
Reactor condition #2 #2 #2 #4 #4 #4<br />
Sampling height 2” 4” 6” 2” 4” 6”<br />
Residence time (ms) 25 44 63 25 44 63<br />
Moisture (wt% as rec'd) 0.483 0.176 0.465 0.317 0.548 0.478<br />
Ash (wt% dry) 20.55 21.72 23.18 20.95 23.94 26.24<br />
Mass release (daf) for different tracers<br />
Ti 49.19 51.16 53.95 49.65 57.65 61.95<br />
Si 69.54 †<br />
70.86 †<br />
151<br />
73.01 †<br />
49.32 58.27 62.07<br />
Al 47.04 50.76 54.38 48.13 57.87 61.99<br />
ash 45.76 49.45 53.51 48.11 56.32 61.35<br />
Mass balance* 50.7 58.7 64.3<br />
† Suspect data<br />
* Mass balance means the mass release is based on the amount of coal fed and the amount<br />
of char collected in the experiment.<br />
Table A.6. Moisture, Ash and ICP Mass Release Data for Four Chars Prepared<br />
under CH 4 Fuel-lean Condition (at the 1" sampling height)<br />
Name of coal Cerrejon Yan Quan Pittsburgh Han Cheng<br />
Moisture (wt% as rec'd) 0.27 0.40 0.39 0.00<br />
Ash (wt% dry) 14.03 23.41 23.86 36.68<br />
Mass release (daf) for different tracers<br />
Ti 56.52 62.80 61.84 28.98*<br />
Si 57.23 63.63 62.17 20.90*<br />
Al 58.15 62.55 63.53 28.86*<br />
ash 55.18 60.66 60.49 27.38*<br />
Mass balance 61.5 63.7 77.0 66.3<br />
* Suspect data