Improvements relating to the Process of Coking with the Recovery of Bye-products.
Year: 1898

page_text: Date of Application, 12th Dec., 1898
Camalaen Carnifination Loft 21st July 1800 Acented 18th Nov.
1500
PROVISIONAL SPECIFICATION.
Improvements relating to the Process of Coking with the Recovery
of Bye-products.
I, RUDOLPH BRUNCK, of No. 14, Prinz Friedrich Carl-Strasse, Dortmund, in
the Kingdom of Prussia, in the Empire of Germany, Doctor of Philosophy and
Manufacturer, do hereby declare the nature of this invention to be as follows:--
It is known that where coking is combined with the recovery of bye-products
(hydrocarbons, tar, ammonia &c.) the removal of heat from the gases, necessary
for the condensation of the bye-products, is effected by a combined air- and
water-cooling process. This method, however, is not satisfactory in two respects,
viz.
1. The heat removed in the process of cooling is absolutely wasted for the
heating of the coke-ovens;
2. The supply of the water necessary for cooling, or the necessity of re-cooling
the hot water down again by means of proper cooling apparatus for re-use,
involve considerable expenses.
"
The object of the improvement herein described is to avoid this loss and
expenses by cooling the hot gases by means of the cold air used for the com-
bustion in the flues of the coke-ovens, so that said air undergoes a preliminary
heating; all on the counter-current's principle. Considering that the tempera-
ture of the gases escaping from the oven-chambers attains 600° Centigrade and
upwards, while on the other hand a sevenfold or eightfold volume of air is
required for the combustion of the gas, it is easily to be seen that on account
of the enormous quantities of gas produced in coking-plants a most extensive
effect of cooling, on the other side of heating is reached.
The improved process enlarges the possibility to erect cove-ovens with recovery
of bye-products in three regards:-
1. The ovens may be introduced even in districts where water is scarce, or
under any circumstances where little or no water is obtainable:
2. Owing to the heating of the air necessary for the combustion, a greater
amount of gas becomes available for other purposes; when all the gases are con-
ducted back to the ovens, the time taken up in coking is reduced, and the output
of the oven is increased;
3. The narrow limits of coking that coal, which is poor in gas, are extended,
since a part of the amount of gas required for oven-heating is replaced by the
heat of the gases which is conducted back into the oven by means of the com-
bustion air.
Daind this 19th dox of December 1898
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.

page_text: Improvements relating to the Process of Coking with the Recovery
of Bye-products.
I, RUDOLPH BRUNCK, of No. 14, Prinz Friedrich Carl-Strasse, Dortmund, in
the Kingdom of Prussia, in the Empire of Germany, Doctor of Philosophy and
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 the coking with the recovery of the by-products, and
has for its object to so operate the condensation of the by-products that the heat
removed for that purpose from the distillation gases can be returned to the oven
to be utilized for coking.
It is known, that where coking is combined with the recovery of the by-
products (hydrocarbons, tar, ammonia and the like) the removal of heat from
the gases, necessary for the condensation of the bye-products, is effected by a
combined air-and-water cooling process. This method, however, is not satis-
factory in two respects, viz.
1. The heat removed in the process of cooling is absolutely wasted for the
heating of the coke-ovens;
2. The supply of the water necessary for cooling, or the necessity of re-cooling
the hot water down again by means of proper cooling apparatus for re-use
involve considerable expenses.
The object of the improvement herein described is to avoid this loss and
expense by cooling the hot gases by means of the cold air used for the combus-
tion in the flues of the coke-ovens, so that said air undergoes a preliminary
heating all on the counter-currents principle. Considering that the tempera-
ture of the gases escaping from the oven-chambers attains 600° Centigrade and
upwards, while on the other hand a sevenfold or eightfold volume of air is
required for the combustion of the gas, it is easily to be seen that on account
of the enormous quantities of gas produced in coking plants a most intensive
effect of cooling, on the other side of heating, is reached.
The improved process enlarges the possibility to erect coke-ovens with re-
covery of bye-products in three regards:
1. The ovens may be introduced even in districts where water is scarce, or
under any circumstances where little or no water is obtainable.
On the annexed sheet of drawing is shown, in a vertical longitudinal section,
a coking plant in which the condensation of the bye-products is effected in the
manner stated.
The distillation gases are led off from the oven a through the hydraulic
mains bb by means of the exhauster c; they pass through the cooling appar-
atus and then after the extraction of the bye-products, are returned to the
oven through the pipe e, discharging them into the bottom flues a¹. The com-
bustion-air is conducted by means of the pipe f through the current of hot
distillation-gases in the cooling apparatus and thence underneath the two
flues gg or discharge-channels for the waste gases from whence it passes upwards
between said channels, and enters the said bottom-flues a¹ at a point in prox-
imity of the entrance side of the gases so as to mingle with the latter. The
direction of the currents of the gases and the air is marked by arrows.
2. Owing to the heating of the air necessary for the combustion, a greater
amount of gas becomes available for other purposes; when all the gases are

page_text: conducted back to the ovens, the time taken up in coking is reduced, and the
output of the oven is increased.
The narrow limits of coking coal, which is poor in gas, are extended, since a
part of the amount of gas required for oven heating is replaced by the heat of
the gases which is conducted back into the oven by means of the combustion air.
Having now particularly described and ascertained the nature of said invention,
and in what manner the same is to be performed, I declare that what I claim is: -
The improvement in the process of coking with the recovery of bye-products
which consists in utilizing the combustion air to be fed to the ovens for the
condensation of the bye-products, substantially as and for the purpose stated.
01 L
T1
1000
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.