The morning call., 1892-12-30
Eight per cent is
a safe proportion Of
80.
the monoxide
We have is to 20. :

! carbonic acid gas is
! supposed to become absorbed by water. but
small percentage is always left.
"In fact all these three poisonous parts
| are supposed TO be taken cut during the
| process Of purifcatipn. But as ii adds 10
the costto thoroughly take them out it is
not done.
"Now as to water gas. the principal con-
stiiuents are hydTogen, carbonic mOnOXide,
vapors or gases OF. the enriching petroleum
or its dIStillates, and carbonie acid gas.
"Of these the carbcnlc moneKlde and car
bontc acid gas are poisonous.
IN the manufacture of coal gas much i'm
portance is attached to slow condensation
in order 10 retain in tie gas as much of the
light hydTQcarbon vapors as possible.
"The gas passes from the condensers to
|. the washers:or scrubbers aud in the scru D.
bers the ammonia and portion of the car
bonlc acid gas are removed.
"Tbe gas then passes to the purifiers and
Is admitted at the bottem, passing upward
through the different layers of lime and
/ through tie series of purifiers. Each of the
purifiers can be shut off from the gas to
change the foUied for fresh lime.
"By this process, if properly conducted
all the sulpha reted hydrogen and nearly ali
the csrbonlc acid gas and salphuric oxides
are removed. =.
But it is just here. where through de-
sire to cheapen the cost of production, that
too large a proportion OF tlrese deadly
poisops are allowed to remain.
Now AS TO the manufacture Of water gas.
The twin .fGtnace~js charged nearly full
with anthracite coal'on the one side and
with bricks, rocks, etc, on the other side,
there being aeC0nnectiOn at the top TO per-
nit the heat~to pass through TO the bricks.
Then the blast from a blOwing-engi CINE
raises the temperature Till the coal is ineaa-
descent and the bricks ard rock red hot.
The Dlastis then shut of and the escape
valve closed. SGperheated steam is then
tnTuaI a. n naCSlup through the ippan 6aca apfar
coal and in the decomposition forming
hydrogen and carbOnic monoxide both Of
which are combusuble, but burn with a
colorless flame.
Petroleum. is admitted into the furnace
at the same time with the steam. The oil
is vaporiZed by the heat and passes over
into the redhQt bricks supeTheated with the
hydrogen and cafbonic acid gas, which
latter is. absorbed by the water in the
serubbers.
THE product is then conducted to the
serubbers and purifiers, thence to the
storing holder for Use.
Wherever water gas is manufactured
there must he carbonle moDoxide. provided
the gas is produced by the oxidizati0n OF
carbon in any form"
Nv hat Is safe proportion of carbonic
monoxide in the gas?" -
About per cent, I think. is the rule in
the East"
Have you snalvzed the gas manufac-
tuTed here recentiy?"
NO l have not, but am satisfied it Is
not free from impurities"
Would II he very dangerous IL from IS 10
20 per cent of carbUnic monoxife was 10
the GASP"
well, l should rather say so. Why, to
| In hale it for even a short time would mean
death sure. L mean even from a small leak.
|. II wonld poison the whole system and rem
der recovery Impossible.
"a sleeping man inhaing gas charged
with that percentage Of carbOnic moutxide
would never waken 10 Life again. II seems