teBNALD.] PRODUCER-GAS TESTS. 93 
Averag< composition of coal and gas. 
coal. Per cent. g \> by volume. Per cent. 
loisture 7. 62 Carbon dioxide L0.53 
Volatile matter 30. 87 Oxygen 15 
ixed carbon 51. 78 
.sh 9.73 
Carbon monoxide 15. 31 
Hydrogen 8.35 
Methane 4.46 
alphur L.69 Nitrogen 61.19 
99.99 
The test on Illinois No. ;> > coal was very satisfactory. The gas was 
ood and the coal easily handled. There were no signs of clinkers in 
he fire, and it is certain that this coal could be used continuously with- 
ut trouble from that source. It may be considered a good gas-pro- 
ucer coal. 
COAL, ILLINOIS NO. 4; PRODUCER-GAS TEST NO. 9. :: 
bal from mine No. 3 of the Donk Brothers Coal and Coke Company, Troy, [11.; tested November 10 
and 11, 1904.] 
uration of test hours. . 30 
otal coal consumed in producer pounds. . 10, 500 
oisture in coal per cent.. 12. 43 
ry coal consumed in producer pounds. . !», 1 91 > 
efuse from dry coal per cent. . 10. 53 
)tal refuse from coal pounds. . 968 
ital combustible consumed in producer do 8, 222 
Coal consumed, pounds per hour. 
>al c< msumed in producer ' 850 
T coal consumed in producer 306. 3 
mibustible consumed in producer ^74. 1 
juivalent coal used by producer plant 398. 2 
quivalent dry coal used by producer plant 348. 5 
juivalent combustible used by producer plant 311. 9 
British /hernia/ units. 
\y pound of coal as fired i 1 , 237 
r pound of dry coal 12, 834 
r pound of combustible 1 -I , :U4 
r cubic foot of standard gas 151.5 
om standard gas per pound dry coal burned in producer 8, 840 
|om standard gas per hour per 1 >rake horsepower LI, 620 
Gas produced, cubic feet (reducedto standard). 
tal 536,435 
r hour 1 7. 88 1 
r pound coal consumed in producer 51. I 
r pound dry coal consumed in producer 58. I 
r pound combustible consumed in producer 65. 3 
r pound equivalent coal used by producer plant 44. 9 
r pound equivalent dry coal used by producer plant 51. t 
pound equivalent combustible used b\ producer plant 57. 4 
* Gas-producer hopper leaked. 
