A New Process for Making Porous Coke.
Year: 1895

page_text: Date of Application, 2nd Dec., 1895
Complete Specification Left, 6th Aug., 1896-Accepted, 24th Oct., 1896
PROVISIONAL SPECIFICATION.
A New Process for Making Porous Coke.
I, OSKAR HEIMANN of Oppeln in the Empire of Germany, Merchant, do
hereby declare the nature of this invention to be as follows:-
In the coking or carbonizing process of pit coal now in use a very firm and but
little porous mass has been produced, which was distinguished by heavy weight in
proportion to bulk, and which burut, very badly. For many purposes and ends,
however, the density of the coke is not so much desired as its larger bulk and
porosity and moreover, it will burn far better, by being more porous.
The object of the present invention is a new process for the making of a very
porous and specifically very light coke, which consists in the fact, that to the pit
coal which is to be coked or carbonized there is added saw dust or wood chips or
waste wood or waste tar, and in general finely divided vegetable matters of all sorts.
At places where these matters adhere to the coal, this latter cannot melt or bake
down and thereby diminish in bulk to the same extent as with the method now in
use, and through the combustion of the vegetable matters a large number of small
hollow spaces are formed in the coal so that a specifically very light and very
porous coke is obtained.
Dated this 2nd day of December 1895
S. S. BROMHEAD,
97 Newgate Street, E.C., Agent for Applicant.
I, OSKAR HEIMANN of Oppeln in the Empire of Germany, Merchant, 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 :-
In the coking or carbonizing process of pit coal now in use a very firm and but
little porous mass has been produced, which was distinguished by heavy weight in
proportion to bulk, and which burat, very badly. For many purposes and ends,
however, the density of the coke is not so much desired as its larger bulk and
porosity, and moreover, it will burn far better, by being more porous.
The object of the present invention is a new process for the making of a very
porous and specifically very light coke, which consists in the fact, that to the pit
coal which is to be coked or carbonized there is added saw dust or wood chips or
waste wood or waste tan and in general finely divided vegetable matters of all sorts.
At places where these matters adhere to the coal, this latter cannot melt or bake
down and thereby diminish in bulk to the same extent as with the method now in
use, and through the combustion of the vegetable matters a large number of small
hollow spaces are formed in the coal so that a specifically very light and very
porous coke is obtained. The percentage of foreign or vegetable matter varies from
1 to 90% according to the porosity desired.

page_text: Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed I declare that what I
claim is :
A new process for the production of a very porous coke, characterized by the
addition of saw-dust, saw chips, waste of wood, waste of tan, and in general waste
of vegetable matters of all descriptions, and broken into small particles, to the pit
coal which is to be coked or carbonized, those small vegetable matters preventing
the melting down or baking together of the coal, and after their combustion leave
a very great number of pores in the coke as herein described.
D
.
1000
S. S. BROMHEAD,
97, Newgate Street, London, Patent Agent.
S. S. BROMHEAD,
97, Newgate Street, London, Patent Agent.