The recovery of benzol is every whit as essential to the community of
these islands as is the provision of drinking water. It may appear to
be Draconic to compel the delivery of the last ounce of benzol from the
coal or gas we burn, but there are many other enactments in force of
a more exasperating character, and which are productive of extremely
little benefit either to the individual or the community. In this
particular instance no one would suffer in any way, because, while the
whole trend of scientific thought is towards the thorough recovery of
this valuable liquid fuel and industrial weapon, it does not hesitate
to demonstrate how the desired end can be obtained without inflicting
the slightest hardship upon the citizen.
The steel trade demands huge quantities of coke to conduct its
operations. The carbon residue from coal is preferable to the raw
mineral fuel. To meet this technical requirement special ovens have had
to be evolved to turn the coal into coke. Yet for years we carried out
this conversion and allowed the substance thrown off in the process to
run to waste. We even continue to do this to-day. It was found that the
coke could be obtained more readily and easily, as well as cheaply,
by means of what is known as the bee-hive oven. This coke-producer
attracted the attention of the interests concerned because it was
not only cheap to install but inexpensive to maintain and renew,
while it facilitated compliance with the fluctuating demands for the
coke which naturally is due to the alternating periods of depression
and prosperity in the steel trade. But we have no monument to waste
comparable with the bee-hive oven. However, it became so firmly
entrenched as to prove wellnigh resistant to progress when science
came along with an improved system yielding a coke of equal quality,
but which had the additional recommendation of enabling all the other
products arising from distillation and which formerly were permitted to
escape, to be recovered.
The virtues of the new method were conceded, but the heavier initial
expenditure which it entailed was regarded as an insurmountable adverse
feature, especially as the Britisher gave expression to another
peculiar trait in his character--would the revenue derived from the
by-products more than offset the increased costs, capital charges and
maintenance expenses? One disturbing factor demanded particularly
careful study. When the call for coke declines, and a certain number
of the ovens have to be closed down, they cannot be brought into
re-activity upon the revival in the steel trade without an overhaul.