Many gas managers have, from time to time, tried if they could not use
some of their creosote for gas producing, but on heating it in
retorts, etc., they have found the result has generally been a copious
deposit of carbon, and a gas which has possessed little or no
illuminating value. Now, the furnace and coke oven oils are in
composition somewhat akin to the creosote oil, so that at first sight
it does not seem a hopeful field for search after a good carbureter,
but the furnace oils have several points in which they differ from the
coal tar products. In the first place, they contain a certain
percentage of paraffin oil, and in the next, do not contain much
naphthalene, in which the coal tar oil is especially rich, and which
would be a distinct drawback to their use.
The furnace oil as condensed contains about 30 to 50 per cent. of
water, and in any case this has to be removed by distilling; and Mr.
Staveley has patented a process by which the distillation is continued
after the water has gone off, and by condensing in a fractionating
column of special construction, he is able to remove all the paraffin
oil, a considerable quantity of cresol, a small quantity of phenol,
and about 10 per cent.
Pages:
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149