Improvements in Apparatus for Separating or Extracting Tar and other Impurities from Gas.
Year: 1889

page_text: Date of Application, 23rd Nov., .1889
Complete Specification Left, 25th Aug., 1890-Accepted, 11th Oct., 1890
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Separating or Extracting Tar
and other Impurities from Gas.
We, KIRKHAM, HULETT AND CHANDLER LIMITED, of 59 and 60, Palace Chambers,
Bridge Street, Westminster, in the County of London, Gas Engineers, and JOSIAH
CHANDLER, of Central Works, Kennington Oval, in the County of London, Gas
Engineer, do hereby declare the nature of this invention to be as follows:-
This invention relates to apparatus for separating or extracting tar, sulphuretted
hydrogen, carbonic acid and other impurities from gas.
In carrying out our invention we provide an upright vessel divided into compart-
ments by means of horizontal plates, and in each plate we form a series of holes,
which, on their lower sides are provided with nozzles or extensions adapted to dip into
cups or trays arranged on the plate beneath them, which cups or trays are designed to.
be filled with water or other purifying liquid. The gas to be purified is introduced
into the lower part of the apparatus and passes upwards through the liquor in the
cups of the several compartments, finally escaping through an outlet in the upper part
of the apparatus.
Water or other liquid is introduced at the top of the apparatus so that all the cups
are kept constantly full; the surplus liquor escapes through a suitable overflow pipe.
The vessel containing the trays is advantageously of rectangular shape but it may
be made round or of any other shape as desired.
We sometimes employ a pump to utilize the liquor over and over again and we
provide for distributing the liquor as equally as possible over the whole apparatus.
Dated the 23rd day of November 1889
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicants.
COMPLETE SPECIFICATION.
Improvements in Apparatus for Separating or Extracting Tar
and other Impurities from Gas.
We, KIRKHAM, HULETT AND CHANDLER LIMITED, of 59 and 60, Palace Chambers,
Bridge Street, Westminster, in the County of London, Gas Engineers, and JOSIAH
CHANDLER, of Central Works, Kennington Oval, in the County of London, Gas
Engineer, 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 apparatus for separating or extracting tar, sulphuretted
hydrogen, carbonic acid and other impurities from gas.
In carrying out our invention we provide an upright vessel divided into compart-
ments by means of horizontal plates, and in each plate we form a series of holes,
which, on their lower sides are provided with nozzles or extensions adapted to dip into
cups or trays arranged on the plate beneath them, which cups or trays are designed
to be filled with water or other purifying liquid. The gas to be purified introduced
into the lower part of the apparatus and passes upwards through the liquor in the
cups of the several compartments, finally escaping through an outlet in the upper part
of the apparatus.
Water or other liquid is introduced at the top of the apparatus so that all
the cups are kept constantly full. The surplus liquor escapes through a suitable

page_text: The vessel containing the trays is advantageously of rectangular shape but it may
be made round or of any other shape, as desired.
We sometimes employ a pump to utilize the liquor over and over again, and we
provide, for distributing the liquor as equally as possible over the whole apparatus such
as by the use of perforated pipes or by a dish-plate under the water or other liquid
inlet.
In order to enable our invention to be fully understood we will describe how it can
be carried into practice by reference to the accompanying drawings, in which :-
Figure 1 is a vertical section of apparatus for separating or extracting tar and
other impurities from gas, constructed according to our invention :
Figure 2 is a horizontal section on the line A B of Figure 1:
Figure 3 is a section drawn to an enlarged scale of a portion of two of the
horizontal plates clearly shewing the relative arrangement of the nozzles and cups or
trays.
Similar letters in all the figures indicate similar parts.
a is the vessel which we provide for carrying out our invention; b, are the
horizontal plates whereby the vessel a is divided into compartments; c, c are the
holes in the plates b, and d, d are the nozzles provided on the lower sides of
the holes e except those of the lowermost plate; e, e are the cups or trays into
which the nozzles d dip, and which are filled with water or other purifying liquid.
The cups e are formed with chambers below their bottoms into which the upper
sides of the holes c open, which chambers are provided with a series of holes y, 9.
is the inlet for the gas, and is the inlet for the water which is contained in a
chamber at the bottom of the vessel a; is an overflow pipe, and I is the outlet for
the tar which is deposited at the bottom of the vessel a; m is a pump whereby the
water is drawn from the chamber j and forced through a pipe m¹ to the top of the
vessel a ; n, n are perforated distributing pipes connected with the pipe m by means
of a pipe o. p is the outlet for the purified gas.
The gas to be purified enters the apparatus through the inlet and passes in the
direction of the arrows through the holes c of the lowermost plate b, then through the
perforations in the chambers and into and through the liquid contained in the cups e
and up through the nozzles and holes c of the next plate & above and so on to the
top of the vessel a whence it passes off in a purified condition through the outlet p.
Water is meanwhile distributed through the pipes n over the whole vessel a whereby
the cups e are kept continually full.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :
The combination of parts forming the improved apparatus for separating or
extracting tar and other impurities from gas hereinbefore described and illustrated in
the accompanying drawings.
Dated the 25th day of A nonst 1800
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicants.