# US 2010/0303676 A1 · Apparatus for treating gas > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2010/0303676 A1 - Document ID: US20100303676A1 - Status: Published application - Kind: A1 - Application number: 12/599,681 - Filed: 2008-05-15 - Published: 2010-12-02 - Earliest claimed: 2007-05-18 - Assignees: Edwards Limited - Inventors: Andrew James Seeley; Andrew James Wakefield - Web page: https://patentgrep.com/patent/US20100303676A1 ## CPC - B03C 3/014: Addition of water; Heat exchange, e.g. by condensation - B01D 47/14: Packed scrubbers (packing elements B01J19/30, B01J19/32) - B03C 3/16: wet type - B03C 3/49: tubular - B03C 3/53: Liquid, or liquid-film, electrodes - B01J 2219/315: Two or more types of packing elements or packing elements of different sizes present in the column - B03C 2201/08: Ionising electrode being a rod - B03C 2201/10: Ionising electrode with two or more serrated ends or sides - B03C: MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS (separating isotopes B01D59/00; combinations of magnetic or electrostatic separation with separation of solids by other means B03B, B07B) - B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28) - B01J: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS ## Abstract Apparatus for treating gas comprises a casing (100) containing a gas scrubber section (118) and an electrostatic precipitator section (120) located above the scrubber section. A partition (136) may be located within the casing (100) to separate the precipitator section (120) from the scrubber section (118). The casing has a gas inlet (102) for supplying gas to the scrubber section, a gas outlet (104) for exhausting gas from the precipitator section, a scrubbing liquid inlet (106) for supplying scrubbing liquid to the precipitator section, and a scrubbing liquid outlet (126) for draining scrubbing liquid from the scrubber section. In one embodiment the partition comprises a set of apertures (138) through which scrubbing liquid drains from the precipitator section into the scrubber section, and a set of gas passages (140) for conveying gas from the scrubber section to the precipitator section. ## Claims ### Claim 1 Apparatus for treating gas, the apparatus comprising: a casing; a gas scrubber section located within the casing, the casing having a gas inlet for supplying gas to the scrubber section; and an electrostatic precipitator section positioned within the casing to receive gas from the scrubber section, the casing having a gas outlet for exhausting gas from the precipitator section and a scrubbing liquid inlet for supplying scrubbing liquid to the precipitator section; the scrubber section being positioned within the casing to receive scrubbing liquid from the precipitator section, the casing having a scrubbing liquid outlet for draining scrubbing liquid from the scrubber section. ### Claim 2 (depends on 1) The apparatus according to claim 1, wherein the scrubber section is located beneath the precipitator section. ### Claim 3 (depends on 1) The apparatus according to claim 1, wherein the casing comprises a plurality of interconnected components, and wherein the scrubber section and the precipitator section are located within a common component of the casing. ### Claim 4 (depends on 1) The apparatus according to claim 1, wherein the casing comprises a plurality of interconnected components, and wherein the scrubber section and the precipitator section are located within respective components of the casing. ### Claim 5 (depends on 3) The apparatus according to claim 3, wherein the component of the casing within which the precipitator section is positioned comprises at least part of an electrode of the precipitator section. ### Claim 6 (depends on 1) The apparatus according to claim 1, wherein the casing is tubular, preferably substantially cylindrical. ### Claim 7 (depends on 6) The apparatus according to claim 6, wherein the scrubbing liquid inlet is arranged to supply scrubbing liquid tangentially into the precipitator section. ### Claim 8 (depends on 1) The apparatus according to claim 1, comprising a partition dividing the casing into the scrubber section and the precipitator section. ### Claim 9 (depends on 8) The apparatus according to claim 8, wherein the partition is connected to an electrode of the precipitator section. ### Claim 10 (depends on 8) The apparatus according to claim 8, wherein the casing comprises a plurality of components and the partition is held between two components of the casing. ### Claim 11 (depends on 8) The apparatus according to claim 8, comprising means for conveying gas from the scrubber section around the partition to the precipitator section. ### Claim 12 (depends on 8) The apparatus according to claim 8, wherein the partition comprises means for conveying gas from the scrubber section to the precipitator section. ### Claim 13 (depends on 12) The apparatus according to claim 12, wherein the means for conveying gas from the scrubber section to the precipitator section comprises one or more gas passages formed in the partition. ### Claim 14 (depends on 8) The apparatus according to claim 8, comprising means for conveying scrubbing liquid from the precipitator section around the partition to the scrubber section. ### Claim 15 (depends on 13) The apparatus according to claim 13, wherein the partition comprises means for conveying scrubbing liquid from the precipitator section to the scrubber section. ### Claim 16 (depends on 15) The apparatus according to claim 15, wherein the means for conveying scrubbing liquid from the precipitator section to the scrubber section comprises a plurality of apertures formed in the partition. ### Claim 17 (depends on 16) The apparatus according to claim 16, wherein the apertures are dispersed about the partition. ### Claim 18 (depends on 16) The apparatus according to claim 16, wherein said one or more gas passages are configured to supply gas into the precipitator section above the apertures. ### Claim 19 (depends on 13) The apparatus according to claim 13, wherein each of the gas passage comprises a pipe extending from the partition into the precipitator section. ### Claim 20 (depends on 8) The apparatus according to claim 8, wherein the partition is substantially planar. ### Claim 21 (depends on 1) The apparatus according to claim 1, wherein the scrubber section comprises packing material. ### Claim 22 (depends on 1) The apparatus according to claim 1, wherein the casing comprises an additional scrubbing liquid inlet for supplying scrubbing liquid to the scrubbing section. ### Claim 23 (depends on 22) The apparatus according to claim 22, wherein the additional scrubbing liquid inlet is configured to spray scrubbing liquid into the scrubbing section. ### Claim 24 (depends on 1) The apparatus according to claim 1, comprising a plurality of electrostatic precipitator sections positioned in the casing to receive gas from the scrubbing section. ### Claim 25 (depends on 24) The apparatus according to claim 24, wherein the precipitator sections are arranged to receive gas in parallel from the scrubbing section. ### Claim 26 (depends on 24) The apparatus according to claim 24, wherein the casing comprises a plurality of partitions for dividing the casing into the plurality of precipitator sections. ### Claim 27 (depends on 26) The apparatus according to claim 26, wherein each of the plurality of partitions comprises at least part of an electrode of its respective precipitator section. ### Claim 28 (depends on 1) The apparatus according to claim 1, comprising a plurality of co-axial precipitator sections.