T H E J O U R N A L OF I N D U S T R I A L A N D ENGINEERING C H E M I S T R Y
7 18
PRELIMINARY W O R K CENTRATION
OF
PRODUCED
O N T H E VARIATION I N T H E CONLIGHT
AT
O I L S I N THE
VARIOUS
COAL
STAGES
GAS
OF
CARBONIZATION
We have shown above t h a t t h e differential pressure method, bulbs of liquid benzene being used, gives a n easy and fairly accurate method for the estimation of the light oil content of a gas mixture. I n order t o obtain some idea of t h e change in t h e light oil content of coal gas as carbonization proceeds, we carried out the following experiments on one of t h e retorts of the Winnipeg Electric Railway Gas Plant: Through a hole drilled in the door of the retort, samples of gas were drawn off from time t o time, washed with water, and t h e light oil content estimated. A 340 cc. estimat‘ion flask was filled b y displacement of air with 2 t o 3 liters of gas. This was not sufficient and the results are probably low, though they are comparable with each other, as the treatment was uniform throughout. Light Oil Content of Gas Cm. H g
TIME Min.
0.94
O(a)
0.70 13 0.56 52 0.29 102 0.21 186 227 240Jb) ( a ) Retort charged with coal. ( b ) Carbonization complete, retort emptied.
I t will be seen t h a t the gas which came over the first hour was rich in light oil; after t h a t the content steadily declined. COMMERCIAL POSSIBILITIES
OF T H E METHOD PARTICU-
LARLY I N CONTROLLING T H E PROCESS O F A B SORPTION OF LIGHT OILS A T RECOVERY P L A N T S
Before the comple
