Improvements in or relating to Apparatus for Enriching Generator Gas.
Year: 1897

page_text: 5
Date of Application, 22nd Dec.,
4007
Last and Cant 1000 Accented 12th Nov
1808
2nd Cant 1000
Sept.,
Complete Specification Left, 22n
Accented 12th Nov
1808
PROVISIONAL SPECIFICATION.
Improvements in or relating to Apparatus for Enriching Generator
Gas.
We, JOANNES COENBARDUS HUBERTUS KRAMERS, Doctor of Philosophy, at the
Gymnasium of Katwyk, near Leiden, and ANTOINE EMILE KIDERLEN, Engineers'
Agent, of 40, Binnenkant, Amsterdam, both in the Kingdom of Holland, do hereby
declare the nature of this invention to be as follows:-
The improvements have reference chiefly to apparatus to be used for the
production of oil gas in conjunction with or to be mixed with generator or producer
gas, such for instance as is made in the well known Dowson apparatus.
The oil gas is produced in one or more retorts placed in a gas generator or
producer, the
retorts being placed above the fire in the generator or
Additional heat may be given to the retorts by
producer, so as to be heated.
burning the generator gas under thein, the air required for the combustion of the
generator gas being forced into the generator through openings in the sides above
the top of the fire. Air at pressure can be obtained by a jet of steam being made
to force air into a vessel or chamber containing coke or other suitable material,
with water passing through it. The steam is thereby condensed and the air
escapes at pressure through the outlet.
The oil to be converted into gas is made to enter the retorts in any convenient
way, and the oil gas produced is passed through one or more scrubbers or purifiers
in the usual way, and then into a gas-holder. When sufficient oil gas has been
passed into the latter, the admission of oil to the retorts is stopped, as well as the
admission of air for combustion of the generator gas.
After this only generator gas is produced and this is led into a gas-holder and
mixed with the oil gas. This mixture of oil gas and generator gas is suitable for
lighting purposes, any desired candle-power being given to it by regulating the
Or instead of mixing the oil gas with
proportion of oil gas to generator gas.
generator gas made in the same apparatus, it can be mixed with generator gas,
such for instance as Dowson gas, made in independent apparatus.
Preferably a jet of steam is introduced in the pipe leading from the outlets of
This
the retorts, in such a way that a partial vacuum is produced in the retorts.
facilitates the production of gas and prevents a carbonaceous deposit in the
retorts. The steam used for this purpose is afterwards condensed by passing the
gas and steam through water.
The oil gas can be made with shale or other suitable oil, paraffin, petroleum or
other suitable materials.
The retort or retorts used for making the oil gas may be of any suitable shape
or construction, and they may have gills or projections on the under side, so as to
offer a large heating surface.
The steam required for producing a partial vacuum in the retorts, as well as the
steam required for producing the generator gas and for forcing in air at pressure
for combustion of the latter, can be made by forcing water into an iron vessel or
chamber placed inside the gas generator, and heated by the fire in the said

page_text: generator. This vessel should be charged with small pieces of iron so that the
heating surfaces may be as large as possible.
HERBERT HADDAN & Co.,
Agents to the Applicants.
COMPLETE SPECIFICATION.
Improvements in or relating to Apparatus for Enriching Generator
Gas.
We, JOANNES COENRARDUS HUBERTUS KRAMERS, Doctor of Philosophy, at the
Gymnasium of Katwyk, near Leiden, and ANTOINE EMILE KIDERLEN, Engineers'
Agent, of 40, Binnenkant, Amsterdam, both in the Kingdom of Holland, 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 :-
The improvements have reference chiefly to apparatus to be used for the
production of oil gas in conjunction with, or to be mixed with generator or
producer gas, such for instance
asis
made in the well known Bowson
apparatus.
The oil gas is produced in one or more retorts placed in a furnace similar to
a gas generator or producer and capable of acting as such, the retorts being placed
above the fire in the furnace generator or producer, so as to be heated.
Additional
heat may be given to the retorts by burning the generator gas under them,
the air required for the combustion of the generator gas being forced into the
generator through an opening or openings in the sides at some distance above
grate or hearth.
Air at pressure could be obtained if desired by a jet of steam
being made to force air into a vessel or chamber containing coke or other suitable
material, with water passing through it. The steam is thereby condensed and the
air escapes at pressure through the outlet.
This
The oil to be converted into gas is made to enter the retorts in any convenient
way, and the oil gas produced is passed through one or more scrubbers or purifiers
in the usual way, and then into a gas holder. When sufficient oil gas has been
passed into the latter the admission of oil to the retorts is stopped, as well as the
admission of air for combustion of the generator gas. After this only generator
gas is produced and this is led into a gasholder and mixed with the oil gas.
mixture of oil gas and generator gas is suitable for lighting purposes, any desired
candle power being given to it by regulating the proportion of oil gas to generator
gas. Or instead of mixing the oil gas with generator gas made in the same
apparatus, it can be mixed with generator gas, such for instance as Dowson gas,
made in independent apparatus.
This
Preferably a jet of steain is introduced in the pipe leading from the outlets of
the retorts, in such a way that a partial vacuum is produced in the retorts.
facilitates the production of gas and prevents a carbonaceous deposit in the retorts.
The steam used for this purpose is afterwards condensed by passing the gas and
steam through water.
The oil gas can be made with shale or other suitable oil, paraffine, petroleum, or
other suitable materials.
The retort or retorts used for making the oil gas may be of any suitable shape or
construction, and they may have gills or projections on the under side so as to offer
a large heating surface.

page_text: The steam required for producing a partial vacuum in the retorts, as well as the
steam required for producing the generator gas and for forcing in the air at pressure
for combustion of the latter, could be made by forcing water into an iron vessel
or chamber placed inside the gas generator, and heated by the fire in the said
generator. This vessel should be charged with small pieces of iron so that the
heating surfaces may be as large as possible.
The annexed drawing shows in Fig. 1 in side elevation and in Fig. 2 in plan,
part of the apparatus herein before described as used for that form of construction
in which the generator or producer gas is made in a distinct apparatus from that
used for the production of the or gas.
A represents a furnace similar to a generator as constructed to produce gas
known as Dowson gas and capable of producing such or a similar gas. a is a
steam jet and b a pipe through which the steam from this jet and the air drawn
in thereby pass to beneath the grate c. d is a steam jet and e a pipe through
which the steam from jet and the air drawn in thereby pass to the space above
the grate c.
B is a retort lying across the middle of the furnace A and C is the
oil inlet to one end of said retort. From this other end of the retort a pipe D
issues which passes into the hydraulic box E and has a short water seal therein,
while a branch D¹ from said pipe descends into the tank F which forms both an
overflow tank for the water from the hydraulic box E and also a catch vessel
for any condensed or unevaporated oil that may pass from the retort B. The
pipe D¹ has a longer water seal in tank F than the pipe D has in box E. From
box E an overflow pipe G extends down into tank F and has a long water seal
therein. His the water inlet for box E. J is the admission pipe for "Dowson "
or other generator or like gas from a separate apparatus not shown but of the known
construction for producing such gas. This pipe J is also water sealed in box E.
Kis the outlet pipe for the mixed gases in the box E. L is a steam pipe in pipe D
for causing a suction in said pipe in a direction from the retort B for the purpose
previously explained.
In the apparatus as illustrated the generator gas produced in furnace A is intended
to be burnt therein by the air entering at e, consequently said furnace is provided
with a flue or shaft M, but if the gas produced in the furnace A is not to be burnt
therein a pipe from the upper part of the furnace might lead to pipe J or as before
mentioned to a separate gas holder.
The scrubbers and gas holder or holders through and to which the gas
passes on issuing from box E being of known construction are not illustrated
herein.
It will be understood also that the two gases need not be mixed in the hydraulic
box E but might be separately purified and carried to the same or different gas
holders.
We therefore do not confine our invention to the construction here illustrated
but
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed we declare that what we
claim is: -
1. The improvements in or relating to apparatus for enriching generator gas
wherein an oil evaporating retort is placed in the generator or in a furnace similar
thereto and the oil gas thus produced is mixed with the generator gas from the
same or another generator either produced at the same time or alternately with
said oil gas substantially as herein described.
2. The apparatus comprising a furnace similar to a gas generator adapted to
produce Dowson or similar gas, but having an air inlet or inlets for burning the
gas produced therein when desired, a retort or retorts traversing said furnace for
producing oil gas and ineans for mixing said oil gas with the generator gas produced
at the same time or alternately.

page_text: 3. A furnace capable of producing generator or producer gas, or a similar
gas, but having also means for burning said gas therein when desired and having
a retort, or retorts capable of producing oil gas, such furnace thus being usable
for either purpose alternatively or both together with the objects set forth.
4. The improvements relating to the enriching of generator gas by means of
oil gas consisting in the combination of apparatus substantially as herein before
described.