An Improved Process of Treating Coal Dross and other Carbonaceous Substances.
Year: 1885

page_text: An Improved Process of Treating Coal Dross and other
Carbonaceous Substances.
I WILLIAM BLACK of Stanrigg Airdrie in the county of Lanark Coalmaster
do hereby declare the nature of my Invention for "AN IMPROVED PROCESS
to be us
OF TREATING COAL DROSS AND OTHER CARBONACEOUS SUBSTANCES
follows:-
=
"
This Invention relates to an improved process of treating coal dross, peat
sawdust and other carbonaceous substances in order better to adapt them for use
as fuel for heating purposes and for the manufacture therefrom of illuminating ga³.
The process of treatment consists in extracting from the coal or other
carbonaceous matter the air or gases and moisture contained therein and adding
to such material as much as it will readily absorb of any liquid or viscous
substance which when subjected to a high temperature will yield heating or
illuminating gases the added substances being such for example as the residual
products of distillation of mineral or other oils or the products remaining in the
manufacture of gas such products usually containing more or less pitch naphthaline
and oily matter yielding gas.
I extract the air and moisture from the carbonaceous material by the aid of any
suitable vacuum apparatus the material being placed in a closed vessel or chamber
and being slightly heated if necessary to expel more readily the gases and moisture
it contains. The pitch or oily matters above mentioned are added to the
carbonaceous material within the vacuum chamber or in a separate chamber and
are absorbed by it as the gases and moisture are extracted pressure being applied
if desired to complete the absorption and admixture. The mixture forms an
amorphous granular mass which is ready for use, but which may be pressed into
briquettes or fuel blocks for convenience of transport.
By the means descrit ed the otherwise comparatively valueless dross and residual
products may be utilised.

page_text: Carbonaceous Substances.
I, WILLIAM BLACK of Stanrigg, Airdrie Lanarkshire, Coal Master 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 an improved process of treating ordinary coal dross,
cannel coal dross, peat, saw-dust and other carbonaceous substances in order better
to adapt them for use as fuel for heating purposes and for the manufacture
therefrom of illuminating gas.
The process of treatment consists in extracting from the coal or other
carbonaceous material the air or gases and moisture contained therein and adding
to such material as much as it will absorb of the residual products of distillation
of mineral or other oils, or the hydro-carbon products remaining in the manufacture
of gas, such products usually containing more or less pitch, naphthalene or similar
hydro-carbons, such as, for example, gasoline, naphtha, benzole and benzene.
I extract the air and moisture from the carbonaceous material by the aid of any
suitable vacuum apparatus or exhausters, the carbonaceous material being placed
in a close vessel or chamber and being heated if necessary to expel more readily
the gases and moisture it contains. The pitch or oily matters above mentioned or
similar hydro-carbons are then added to the dried carbonaceous material while in
the vacuum chamber to forin an amorphous mass which is ready for use for the
purposes above mentioned but which if desired may be pressed into briquettes or
fuel blocks..
The moisture may however be expelled by heating the dross or other
carbonaceous material in a finely pulverised state in the open air, the dross being
then impregnated to the point of saturation with the pitch or other hydro-carbons.
The mixture may thereafter be compressed to form briquettes which will be
adapted particularly for use for heating purposes or for the manufacture therefrom
of illuminating gas, according as the hydro-carbon added to the dried carbonaceous
material is of the nature of pitch, or of napthalene, 'naptha, gasoline or similar
hydro-carbon which on distillation yields illuminating gas.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is
The process of treating coal dross or other carbonaceous material consisting in
extracting or expelling the air and moisture therefrom and impregnating the
material with residual hydro-carbons substantially as and for the purposes set
forth.
Dated this Fifth day of January 1886.