WO1995003875A1 - Laveur a chambre garnie dynamique - Google Patents

Laveur a chambre garnie dynamique Download PDF

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Publication number
WO1995003875A1
WO1995003875A1 PCT/US1994/008777 US9408777W WO9503875A1 WO 1995003875 A1 WO1995003875 A1 WO 1995003875A1 US 9408777 W US9408777 W US 9408777W WO 9503875 A1 WO9503875 A1 WO 9503875A1
Authority
WO
WIPO (PCT)
Prior art keywords
liquid
chamber
scrubber
packed container
outlet
Prior art date
Application number
PCT/US1994/008777
Other languages
English (en)
Inventor
William J. Carr
Original Assignee
Carr William J
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Carr William J filed Critical Carr William J
Publication of WO1995003875A1 publication Critical patent/WO1995003875A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/14—Packed scrubbers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
    • B01D53/18—Absorbing units; Liquid distributors therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/08—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with moving particles
    • B01J8/10—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with moving particles moved by stirrers or by rotary drums or rotary receptacles or endless belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/18—Details relating to the spatial orientation of the reactor
    • B01J2219/182—Details relating to the spatial orientation of the reactor horizontal

Definitions

  • the present invention relates to a novel gas scrubber utilizing a dynamic packed chamber.
  • the gas scrubbing apparatus which achieves an exceptional efficiency in removing waste gases from a variety of industries would be a great advance in the field of air pollution control.
  • a novel and useful waste gas scrubber is herein provided.
  • the scrubber of the present invention utilizes .a chamber having an inlet and an outlet, each capable of passing fluids therethrough. Exhaust gases may pass through the inlet to the chamber for treatment within the same. Gases may be a mixture of relatively inert gases, such as nitrogen, as well as poisonous gases such as silane.
  • the chamber may be contiguous with a liquid storage portion in the form of a sump. Pressure means is employed to impose at least a partial vacuum or negative pressure on the chamber such that exhaust gases are pushed into the chamber and drawn out of the same at a proper rate.
  • a packed container is located within the chamber. Such container is capable of receiving exhaust gases, processing the same, within the packed container, and causing the gas to egress the outlet.
  • Means is included for turning or rotating the packed container within the chamber. Such turning means may take place along an axle which is motivated by a motor lying outside the chamber.
  • the injector may take the form of an elongated member having a first port for sending the liquid to the interior of the rotating packed container and a second port for delivering liquid to the chamber just outside the inlet to the rotating packed container. Rotation of the packed container and the liquid injector together insures a thorough mixing of the exhaust gases sent into the chamber of the liquid found in the packed container, as well as in the area just adjacent the inlet to the packed container.
  • the liquid injector may include a plurality of apertures for this purpose.
  • liquid may be delivered to the injector from one end of the elongated member which lies outside the chamber, but within sealed ante-chamber which does not rotate.
  • Gases mixed with the dispersed water in the chamber are sent from the chamber to a demisting compartment which is located adjacent the chamber. Packing material may also be found in the demisting compartment. Liquid holding waste gas exiting the chamber but not entering the demisting chamber, is sent back to a liquid disposal sump. In addition, liquid recovered in the demisting compartment is fed back to the liquid disposed sump through appropriate conduit. Gases leaving the demisting compartment are considered to be scrubbed or cleansed and are sent to the outward environment or through secondary containment chambers for application of further assurance measures against contamination of the atmosphere.
  • the rotating packed container contacts the liquid storage within the compartment and further disperses liquid for mixture with the exhaust gases entering the chamber.
  • the rotational speed of the packed container also serves to regulate the flow of gases into and out of the same within the chamber since the inlet and outlet of the packed container includes plates that have a multiplicity of apertures. For example, rapid turning of the packed container will reduce the flow rate of gases thereinto, in this regard.
  • a further object of the present invention is provide a scrubber for gases which is compatible with secondary liquid containment systems.
  • a further object of the present invention is to provide a scrubber for gases which is economical to operate since extremely reduced water consumption and power is required.
  • Yet another object of the present invention is to provide a scrubber for gases which eliminates the effort associated with internal cleaning of solidified residues and sludges.
  • Yet another object of the present invention is to provide a scrubber for gases which is easily integrated into production and manufacturing waste streams since the scrubber of the present invention is easily adjustable to specific waste flow rates.
  • Fig. 1 is a side elevational view of the scrubber of the present invention with the waste gas inlet, a gas treatment and liquid recovery portions shown in section. -
  • Fig. 2 is a sectional view taken along line 2-2 of Fig. 1.
  • Fig. 3 is a sectional view taken along line 3-3 of Fig. 1.
  • Fig. 4 is a sectional view taken along line 4-4 of Fig. 1.
  • Fig. 5 is a right end view of the scrubber of the present invention taken along line 5-5 of Fig. 1.
  • Gas scrubber 10 includes as one of its elements a chamber 12 which is formed as a portion of housing 14. With reference to Figs. 1 and 2 it may observed that housing 14 includes a cylindrical end portion 16 providing an inlet 18 to chamber 12. Process gases are directed through conduit 20, in this regard. Chamber 12 is divided into a first portion 22 and a second portion 24. Plate 26 having circular opening 28, serves to divide chamber 12 into portions 22 and 24. Support wall 30 functions as a mounting surface for cylindrical end portion 16 through a plurality of fasteners 32, shown in exemplar form on Fig. 2. Support wall 30 rests on base 34 which may also serve as secondary containment for processed gases encapsulated in liquid originating in liquid body 36 within liquid storage portion 38 of chamber 12.
  • liquid body 36 may be water or other liquids capable of recovering waste gases.
  • a plurality of hollow bosses 40 permits scrubber 10 to be affixed to a pallet or runners (not shown) .
  • Drain opening 42 accesses the interior of base 34 to effect removal of waste gas contaminated liquids.
  • Ring-shaped flange 44 provides outlet 46 to chamber 12. It should be noted that cylindrical end portion 16 and connected flange 44 are fastened to support wall 30. Such connections within housing 14 are achieved by welding or other suitable means.
  • a container 48 filled with packing material such as multiplicity of spheres 50.
  • packing material may also take the form of other known packing configurations such as media balls, Raschig rings, Berl saddles, and the like.
  • Packed container 48 is located within second portion 24 of chamber 12. With reference to Figs. 2 and 3, it may be observed that packed container 48 includes an inlet plate 52, Fig. 2, and an outlet plate 54. Plates 52 and 54 include plurality of apertures 56 and 58, respectively, which are sufficient to permit the passage of fluids, yet retain multiplicity of spheres 50 within container 48.
  • Liquid injector means 60 is also found in the present invention in the form of an elongated tube 62 which extends into chamber 12.
  • Elongated tube is formed with a plurality of openings or ports 65 to permit the passage of liquid from liquid body 36, the path of which will be discussed hereinafter in detail.
  • Elongated tube 62 is fastened to a tube 64 of reduced diameter that extends through elongated tube 62.
  • Tube 64 of reduced diameter connects to bearing housings 66 an 68.
  • Tube 64 and bearing housing 66 and 68 isolate a shaft 70, therewithin, against contact with any gases or liquids within chamber 12.
  • shaft 70 is keyed such that tube 64 and elongated tube 62 turn with shaft 70.
  • turning means 72 is provided in the form of a wheel 74 which is held to shaft 70 outside of chamber 12.
  • Shaft 76 is turned by motor means 78.
  • Journaled end 80 of shaft 76 includes a pulley 82 which connects to pulley wheel 74 through a belt 84.
  • Injector is connected to container 48 such that turning means 72 is capable of turning injector 60 as well as packed container 48.
  • Liquid is fed from liquid storage portion 38 through conduit 86 and to pump 88.
  • the outlet 90 of pump 88 sends liquid into a sealed ante-chamber 92.
  • Elongated tube 62 turns within chamber 92 formed by a manifold housing 94.
  • Manifold 94 is held to a support wall 96 by a circular flange 98 welded thereto, Figs. 1 and 4.
  • Large openings 100 through elongated tube 62 permits liquid from chamber 92 to enter tube 62 and pass to multiplicity of apertures 65 in elongated tube 62, without contacting shaft 70. Seals 102 and 104 prevent the passage of liquid from chamber 92 into chamber 12.
  • grid 106 contacts liquid having encapsulated waste gases exiting chamber 12. A portion of this liquid is set to liquid disposal sump 10.
  • Conduit 109 is employed to remove liquid holding waste gases.
  • Grid 106, Figs. 1 and 4 also contacts any gas and liquid mixture traveling into a demisting chamber or compartment 108. Combined gas and liquid effluent passing through grid 106 are directed by partition 110 to pass through grid 112 and, eventually, through grid 114 into transition duct 116. A plurality of spheres 118 intercept the liquid and gas mixture between grid 112 and 114. This contact serves to further capture liquid from the mixture, which then returns through grid 106 and to sump 107.
  • blower 118 De-watered and cleaned gas is then passed through blower 118 to the exterior environment or to a secondary contamination chamber.
  • Blower 118 is operated by motor 78 whose output shaft 120 turns pulley 122 through belt 124 and blower shaft 126.
  • shaft 120 is also capable of operating pulley 128 which is linked to pulley 130 through belt 132.
  • shaft 76 is also operated by motor 78, Fig. 5.
  • the process gases to be cleaned are sent through duct conduit 20 and into inlet 18 of chamber 12.
  • Turning means 72 rotates liquid injector 60 and connected packed container 48 via the operation of motor 78.
  • Liquid is then pumped from liquid body 36 within liquid storage portion 38 of chamber 12 and into sealed liquid chamber 92. Liquid passes through large openings 100 of elongated tube 62 and disperses outwardly from injector 62 through multiplicity of apertures 65 therein. Simultaneously, dispersed liquid flows into first portion 22 of chamber 12 as well as into packed container 48. It should be noted that packed container 48 also scoops water from liquid body 36 within container 12 during its rotation.
  • Such thoroughly mixed liquid and gas is then passed through from packed container outlet plate 54 to grid 106, and demisting chamber or compartment 108.
  • the rate of rotation of packed container 48 determines the residence time of the liquid gas mixture.
  • Grids 106, 112 and 114 as well as plurality of spheres 136 in demisting compartment 108 serve to separate the water encapsulating the waste gases from purified air.
  • the clean air then passes into transition duct 116, through blower 118, and outwardly from scrubber 10.
  • blower 118 also serves as means 134 for imposing a negative pressure on scrubber 10, especially within chamber 12. It has been found that scrubber 10 is extremely compact and efficient since the liquid 36 and the waste gases entering inlet 18 to chamber 12 are thoroughly mixed therewithin. Liquid containing waste gases are then drained from scrubber 10 through conduit 109. Thus, scrubbing may take place on a continuous basis.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Treating Waste Gases (AREA)
  • Gas Separation By Absorption (AREA)

Abstract

Un laveur de milieux liquides (10) pour gaz met en ÷uvre une chambre (12) comportant une entrée (18) et une sortie, chacune permettant le passage de fluides. Un récipient garni (48) est situé à l'intérieur de la chambre (12), possédant une entrée (52) et une sortie (54) distinctes. Un injecteur de liquide (60) distribue et disperse, depuis un réservoir (38), du liquide dans le récipient garni (48) et au sein de la chambre (12) au niveau de la partie entrée (52) de ce dernier. Une source de pression (118) applique une depression à la chambre (12). Le récipient garni (48) et l'injecteur de liquide (60) sont mis en rotation à l'intérieur de la chambre (12) pour accroître l'efficacité du processus de lavage. Les liquides sont renvoyés pour élimination vers le réservoir (38) après contact avec les gaz lavés. Ce laveur (10) peut également comporter un compartiment de désembuage (108) situé à l'extérieur de la chambre (12) pour effectuer une élimination ultérieure du liquide contenu dans le mélange gaz/liquide généré au sein de la chambre (12).
PCT/US1994/008777 1993-08-03 1994-08-02 Laveur a chambre garnie dynamique WO1995003875A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10157193A 1993-08-03 1993-08-03
US08/101,571 1993-08-03

Publications (1)

Publication Number Publication Date
WO1995003875A1 true WO1995003875A1 (fr) 1995-02-09

Family

ID=22285353

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1994/008777 WO1995003875A1 (fr) 1993-08-03 1994-08-02 Laveur a chambre garnie dynamique

Country Status (1)

Country Link
WO (1) WO1995003875A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5902383A (en) * 1996-11-19 1999-05-11 Nec Corporation Dust collection apparatus having packed tower
US6066591A (en) * 1995-05-03 2000-05-23 Pall Corporation Reactive medium for purifying fluids
CN104722162A (zh) * 2015-03-18 2015-06-24 林斌炎 一种吸除燃煤烟气中细颗粒物的方法及转窑式烟气细颗粒物吸除器
CN118437550A (zh) * 2024-07-08 2024-08-06 河南中宝工程管理服务有限公司 一种喷涂均匀的建筑节能材料喷涂装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US497034A (en) * 1893-05-09 schmid
US2797768A (en) * 1955-03-14 1957-07-02 Rollin J Bunker Air cleaner
US3712031A (en) * 1971-03-19 1973-01-23 Cruz L Santa Anti-smog and exhaust device
US3861891A (en) * 1972-05-24 1975-01-21 Nippon Telegraph & Telephone Gas purifying apparatus
US4135894A (en) * 1975-06-25 1979-01-23 Andersen 2000, Inc. Air filtration apparatus and method of operation thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US497034A (en) * 1893-05-09 schmid
US2797768A (en) * 1955-03-14 1957-07-02 Rollin J Bunker Air cleaner
US3712031A (en) * 1971-03-19 1973-01-23 Cruz L Santa Anti-smog and exhaust device
US3861891A (en) * 1972-05-24 1975-01-21 Nippon Telegraph & Telephone Gas purifying apparatus
US4135894A (en) * 1975-06-25 1979-01-23 Andersen 2000, Inc. Air filtration apparatus and method of operation thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6066591A (en) * 1995-05-03 2000-05-23 Pall Corporation Reactive medium for purifying fluids
US5902383A (en) * 1996-11-19 1999-05-11 Nec Corporation Dust collection apparatus having packed tower
CN104722162A (zh) * 2015-03-18 2015-06-24 林斌炎 一种吸除燃煤烟气中细颗粒物的方法及转窑式烟气细颗粒物吸除器
CN118437550A (zh) * 2024-07-08 2024-08-06 河南中宝工程管理服务有限公司 一种喷涂均匀的建筑节能材料喷涂装置

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