Improvements in Distilling Crude Petroleum, Mineral Oil, Tar, and the like, and in Apparatus therefor.
Year: 1891

page_text: Date of Application, 7th Jan., 1891-Accepted, 21st Feb., 1891
COMPLETE SPECIFICATION.
Improvements in Distilling Crude Petroleum, Mineral Oil, Tar, and
the like, and in Apparatus therefor.
I, Dr. Max Böшм, of the firm of Ostrauer-Mineraloel-Raffinerie Max Böhm
& Co., of Privoz, Moravia, Austrian Empire, Manufacturer, do hereby declare the
nature of this invention and in what manner the same is to be performed, to
be particularly described and ascertained in and by the following statement :-
This invention relates to improvements in distilling crude petroleum, mineral oil,
tar, and the like, and has for its object the preliminary heating of the material to
be distilled by the vapours of the body of the material which is being distilled,
without requiring to use fuel or steam for this purpose.
The accompanying drawing shews the construction of apparatus for carrying out
my said invention. It consists essentially of the preliminary heater B in which is
a worm A, and of the two cooling vessels G and H with the worms C and D.
The preliminary heater B, which is provided with inlet and outlet branches E
and F, with a dome K and a discharge pipe L that can be closed by a cock,
communicates on the one hand by the outlet F with a distilling apparatus of any
suitable known construction, and on the other hand by the inlet E with a suitable
pump and a reservoir.
The worm A is connected at M with the distilling apparatus while the lower
end, passing through the preliminary heater is connected to the worm C in the
cooling vessel G.
The dome K of the preliminary heater communicates by a pipe with the second
worm D in the cooling vessel H.
The two cooling vessels are provided in the known manner with inlet and
discharge pipes, for effecting a continuous circulation of cooling liquid.
The vapours passing from the distilling apparatus are led through the worm A
of the preliminary heater B which contains the crude petroleum, mineral oil or
tar &c. intended for the next charge of the distilling apparatus.
By this means a partial condensation of the escaping vapours is effected, which
are then completely condensed by being made to pass through the worm C of the
cooling vessel G, while at the same time the cold material contained in the preliminary
heater becomes heated by the heat given off by the said vapours.
The vapours that are given off by the said material in consequence of the heating
thereof, pass through the dome K into the cooling worm D where they are
condensed. The introduction of the heated material from the heater B into the
distilling vessel, after the residum from the previous distillation has been removed
therefrom, is effected by pumping fresh cold material into the heater B through
pipe E, whereby the heated, and consequently specifically lighter, liquid is made to
flow off through the pipe F to the distilling apparatus.
By the above described means it will be seen that a preliminary heating of the
charge to be distilled is effected without any expenditure of fuel or steam, entirely
by means of the vapours of the previous charge, which vapours are simultaneously
condensed.
Having now particularly described and ascertained the nature of this
invention and in what manner the same is to be performed, I declare that what I
claim is :-
:-
1. In distilling crude petroleum, mineral oil, tar, and the like, the utilisation of
the beat of the vanours nradweed be auch distillation for preliminary heating the

page_text: material intended for the next charge, contained in a separate reservoir or
preliminary heater.
2. For carrying out the method of operating set forth in the preceding claim,
the combination with the distilling apparatus of a preliminary heater containing the
material to be heated, through which the vapours given off by the charge in the
distilling apparatus are led, substantially as described.
Dated this 7th day of January 1891.
ABEL & IMRAY,
Agents for the Applicant.