Apparatus therefor.
Year: 1887

page_text: Date of Application, 3rd Mar., 1887.
Complete Left, 26th Apr., 1887.
Complete Accepted, 27th May, 1887..
Apparatus therefor.
I, CHARLES WEHNERT WATTS, of No. 5, Jeffrey's Square, St. Mary Axe, in the
City of London, Chemist, do hereby declare the nature of this invention to be as
follows:-
O
In the specification of an application for Letters Patent by Carl Friedrich Claus
bearing date the 5th day of June 1880 No. 7585, is described a method of preparing
ammoniacal liquor for the purpose of removing bisulphide of carbon from coal gas, by
causing such ammoniacal liquor to be sulphurised without previous distillation by
contact with solid sulphur ; and my invention has reference to a method of and means
or apparatus for so sulphurising ammoniacal liquor.
For this purpose according to my invention the solid sulphur is placed in a vessel
or vessels through which the ammoniacal liquor is caused to flow on its way to the
distributing apparatus of a scrubber in which bisulphide of carbon is to be removed,
means being provided for regulating and controlling the amount or proportion of
sulphur dissolved and taken up by the sulphide of ammonium in the liquor flowing
through the said vessel or vessels, so that the liquor may be caused to take up the
required addition of sulphur without being excessively sulphurised.
Apparatus according to my invention may be constructed in various forms. A
convenient arrangement is as follows:→
A tank is provided with two transverse partitions terminating somewhat below the
top of the tank. The central chamber or compartment of this tank is designed to
receive the solid sulphur, which may advantageously be introduced into it in the form.
of clean lumps. The liquor is introduced through a suitable inlet into one of the end
compartiments, whence it flows over the partition into the compartment containing the
solid sulphur, tbrough which the liquor percolates; thence it passes through an outlet
at or near the bottom into the other end compartment. A pipe leading to the
distributor of the scrubber is in connection with this compartment by several branches
at different levels, each provided with a valve or cock, so that according as it is desired
that more or less sulphur shall be dissolved and taken up by the sulphide of ammonium

page_text: in the liquor, one or other of these branch pipes is opened for the escape of the liquor
from the end compartment, the others being closed, and in this way the level of liquor
in the compartment containing the sulphur is determined. In connection with the
inlet pipe, valves are provided for bye passing the sulphuriser when recharging. The
tank is provided with a cover in which there is or are a man hole or man holes with
lid or lids for recharging; also in the wall of the sulphur compartment there is or are
a man hole or man holes with lid or lids for cleaning. As will be evident, the construc-
tion and arrangement of the apparatus devoted to the sulphurising of the liquor in
accordance with my invention may be variously modified, so long as the liquor is
caused, by contact with solid sulphur, to take up the required addition of sulphur
(without being excessively sulphurised) before being distributed in the scrubber in
which bisulphide of carbon is to be removed. For example: according to one
modification, in lieu of providing different valves for adjusting the level of liquor in
the compartment containing the sulphur, so that the liquor can be exposed to the
desired column of sulphur, a syphon arm may be provided within the last compartment,
able to be swivelled so that its mouth may be brought to any desired level within the
said compartment; this syphon pipe being in connection with the pipe leading from
the compartment containing it to the distributor.
In some cases, in lieu of arrangements such as referred to for controlling the
sulphurising by determining the height of the column of sulphur to which the liquor
shall be exposed, I may control the proportion of sulphur taken up by the liquor by
causing a portion only of liquor to pass through the sulphuriser, conducting the
remainder of the liquor direct to the distributor.
The sulphurising apparatus may be located in any convenient position, so long as
the inlet for liquor is in communication with the preceding scrubber, and the outlet is
in communication with the distributor of the scrubber in which bisulphide of carbon
is to be removed.
My invention as above set forth may also be applied in connection with washers
where they are used in lieu of scrubbers.

page_text: Apparatus therefor.
I, CHARLES WEHNERT WATTS, of No. 5, Jeffreys Square, Saint Mary Axe, in the
City of London, Chemist, 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 specification of an application for Letters Patent by Carl Friedrich Claus
bearing date the 5th day of June 1886, No. 7585, is described a method of preparing
ammoniacal liquor for the purpose of removing bisulphide of carbon from coal gas,
by causing such ammoniacal liquor to be sulphurised without previous distillation by
contact with solid sulphur; and my invention has reference to a method of and means.
or apparatus for so sulphurising ammoniacal liquor.
For this purpose according to my invention the solid sulphur is placed in a vessel
or vessels through which the ammoniacal liquor is caused to flow on its way to the
distributing apparatus of a scrubber in which bisulphide of carbon is to be removed,
ineans being provided for regulating and controlling the amount or proportion of
sulphur dissolved and taken up by the sulphide of ammonium in the liquor flowing
through the said vessel or vessels, so that the liquor may be caused to take up the
required addition of sulphur without being excessively sulphurised.
Apparatus according to my invention may be constructed in various forms..
Figs. 1, 2, and 3 of the annexed drawings show one arrangement, Fig. 1 being a
longitudinal vertical section; Fig. 2 an end elevation, and Fig. 3 a plan. A is a tank
provided with two transverse partitions B, C, terminating somewhat below the top of
the tank. The central chamber or compartment D of this tank is designed to receive
the solid sulphur, which may advantageously be introduced into it in the form of clean
lumps. The liquor is introduced through a suitable inlet E into the end compart-
ment F whence it flows over the partition B into the compartment D containing the
solid sulphur, through which the liquor percolates; thence it passes through an
outlet G at or near the bottom into the other end compartment H. I is a pipe
leading to the distributor of the scrubber: it is in connection with the compartment H
by several branches K, L, M, at different levels (there may be more than are shown).
N, O, are valves or cocks. According as it is desired that more or less sulphur shall
be dissolved and taken up by the sulphide of ammonium in the liquor, one or other of
the branch pipes is opened for the escape of the liquor from the end compartment H,
the other or others being closed, and in this way the level of liquor in the compart-
ment D containing the sulphur is determined. In connection with the inlet pipe E,
valves are provided for bye-passing the sulphuriser when recharging. I have not
considered it necessary to show these, as a competent person will readily understand
how to arrange them. The tank is provided with a cover P, in which there is a man-
hole Q with lid R, (or there may be two or more man-holes with lids) for recharging;

page_text: also in the wall of the tank there is, are, or may be a man-hole or man-holes with lid
or lids for cleaning. As will be evident, the construction and arrangement of the
apparatus devoted to the sulphurising of the liquor in accordance with my invention
may be variously modified, so long as the liquor is caused, by contact with solid
sulphur, to take up the required addition of sulphur (without being excessively
sulphurised) before being distributed in the scrubber in which bisulphide of carbon is
to be removed.
Figs. 4, 5, and 6 illustrate a modification, according to which in lieu of providing
different valves for adjusting the level of liquor in the compartment containing the
sulphur, so that the liquor can be exposed to the desired column of sulphur, a syphon
arm S is provided within the last compartment H, this syphon arm being able to be
swivelled so that its mouth may be brought to any desired level within the said
compartment; this syphon pipe being in connection with the pipe leading from the
compartment H containing it to the distributor. In Fig. 5 I have indicated by dotted
lines several positions the mouth of the swivelling pipe.can be caused to assume.
In some cases, in lieu of arrangements such as referred to for controlling the
sulphurising by determining the height of the column of sulphur to which the liquor
shall be exposed, I may control the proportion of sulphur taken up by the liquor by
causing a portion only of liquor to pass through the sulphuriser, conducting .the
remainder of the liquor direct to the distributor.
+
The sulphurising apparatus may be located in any convenient position, so long as the
inlet for liquor is in communication with the preceding scrubber, and the outlet is in
communication with the distributor of the scrubber in which bisulphide of carbon is
to be removed..
My invention as above set forth may also be applied in connection with washers
where they are used in lieu of scrubbers.
Having now particularly described and ascertained the nature of the said invention,
and in what manner it is to be performed, I declare that what I claim is
1. In the purification of coal gas 'sulphurising ammoniacal liquor without previous
distillation by causing the said liquor to flow on its way to a scrubber or washer in
which bisulphide of carbon is to be removed through a vessel or vessels charged with
solid sulphur and provided with means for regulating and controlling the amount or
proportion of sulphur dissolved and taken up by the sulphide of ammonium in the
liquor flowing through the said vessel or vessels, so that the liquor may be caused to
take up the required addition of sulphur without being excessively, sulphurised,
substantially in the manner hereiñabove described.
2. In the purification of coal gas the use for sulphurising ammoniacal liquor without
previous distillation by contact with solid sulphur, of apparatus constructed, arranged,
and operating as hereinabove described with reference to and illustrated in Figs. 1 to 3
inclusive, or as described with reference to and illustrated in Figs. 4 to 6 inclusive of
the drawings annexed.
'
Dated this Ofth day of Anvil 1007