These are passed through several miles of
wrought iron tubing, diminishing in size from 6 feet down to about 18
inches; and as the gases cool, so there is deposited a considerable
yield of oil.
At Messrs. Dixon's, at Glasgow, which is the smallest of these
installations, they pump and collect about 60,000,000 cubic feet of
furnace gas per day; and recover, on an average, 25,000 gallons of
furnace oils per week, using the residual gases, consisting chiefly of
carbon monoxide, as fuel for distilling and other purposes, while a
considerable yield of sulphate of ammonia is also obtained. In the
same way a small percentage of the coke ovens are fitted with
condensing gear, and produce a considerable yield of oil, for which,
however, there is a very limited market, the chief use being for
lucigen and other lamps of the same description, and for pickling
timber for railway sleepers, etc.; the result being that, four years
ago, it could be obtained in any quantity at 1/2d. per gallon, while
since that it has been as high as 21/2d. a gallon, but is now about 2d.,
and shows a falling tendency. Make a market for this product, and the
supply will be practically unlimited, as every blast furnace and coke
oven in the kingdom will put up plant for the recovery of the oil, and
as with the limited plant now at work it would be perfectly easy to
obtain 4,000,000 or 5,000,000 gallons per annum, an extension of the
recovery process would mean a supply sufficiently large to meet all
demands.
Pages:
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148