GB1441293A - Process of purifying waste gases - Google Patents

Process of purifying waste gases

Info

Publication number
GB1441293A
GB1441293A GB4439873A GB4439873A GB1441293A GB 1441293 A GB1441293 A GB 1441293A GB 4439873 A GB4439873 A GB 4439873A GB 4439873 A GB4439873 A GB 4439873A GB 1441293 A GB1441293 A GB 1441293A
Authority
GB
United Kingdom
Prior art keywords
absorbent
waste gas
separating vessel
fluidized bed
separating
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB4439873A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fried Krupp AG
Original Assignee
Fried Krupp AG
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 Fried Krupp AG filed Critical Fried Krupp AG
Publication of GB1441293A publication Critical patent/GB1441293A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/68—Halogens or halogen compounds
    • 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
    • B01D53/02—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 adsorption, e.g. preparative gas chromatography
    • B01D53/06—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 adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds
    • B01D53/10—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 adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds with dispersed adsorbents
    • B01D53/12—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 adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds with dispersed adsorbents according to the "fluidised technique"
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/40—Alkaline earth metal or magnesium compounds
    • B01D2251/404—Alkaline earth metal or magnesium compounds of calcium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/60—Inorganic bases or salts
    • B01D2251/602—Oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/20—Halogens or halogen compounds
    • B01D2257/202—Single element halogens
    • B01D2257/2027—Fluorine
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/20—Halogens or halogen compounds
    • B01D2257/204—Inorganic halogen compounds
    • B01D2257/2045—Hydrochloric acid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/30—Sulfur compounds
    • B01D2257/302—Sulfur oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/02—Other waste gases
    • B01D2258/025—Other waste gases from metallurgy plants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/40—Further details for adsorption processes and devices
    • B01D2259/402—Further details for adsorption processes and devices using two beds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Treating Waste Gases (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)

Abstract

1441293 Purifying waste gases FRIED KRUPP GmbH 21 Sept 1973 [23 Sept 1972] 44398/73 Heading B1L In a process of purifying waste gas by separating harmful gaseous constituents contained in the waste gas by reaction with a grannular absorbent ina fluidised bed, the waste gas is -passed after addition to it of the granular absorbent, into the apex of a downwardly tapering conical separating vessel in which the fluidized bed is formed, the absorbent is separated from waste gas leaving the separating vessel and is tested for residual reactivity and is either recycled to the conical separating vessel or rejected as spent in dependence on said test. Waste gas containing harmful constituents e.g. fluorine sulphur dioxide or hydrogen chloride is forced by a blower 1 into a pipe 2 to which absorbent is fed from a hopper 4 by a distributor 3. The waste gas with the entrained absorbent enters the apex of a downwardly tapering conical separating vessel 5 in which a fluidized bed forms. A second similar but larger separating vessel 6 is in series with the vessel 5 and the fluidized bed therein is of finer particles. The waste gas and particles of absorbent pass into a cyclone 7. The residual reactivity of the absorbent is tested by a sampling technique involving e.g. measurement of temperature and/or conductivity or, where appropriate, CaO content. Depending on the test, the absorbent is either returned to the hopper or rejected through outlet 10. Two series connected separating vessels 12, 13 may, as shown, be connected in parallel with the vessels 5, 6. Water can be injected at 15 to increase the moisture content of the waste gas. Each separating vessel may have, in its outlet, a centrally disposed vertically movable tube to control the amount of absorbent in the fluidized bed.
GB4439873A 1972-09-23 1973-09-21 Process of purifying waste gases Expired GB1441293A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722246806 DE2246806C2 (en) 1972-09-23 1972-09-23 Process for cleaning exhaust gases

Publications (1)

Publication Number Publication Date
GB1441293A true GB1441293A (en) 1976-06-30

Family

ID=5857208

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4439873A Expired GB1441293A (en) 1972-09-23 1973-09-21 Process of purifying waste gases

Country Status (10)

Country Link
BE (1) BE804974A (en)
CH (1) CH577337A5 (en)
DE (1) DE2246806C2 (en)
ES (1) ES418893A1 (en)
FR (1) FR2200042B1 (en)
GB (1) GB1441293A (en)
IT (1) IT995413B (en)
LU (1) LU68460A1 (en)
NL (1) NL179456C (en)
SE (1) SE401461B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2671625A2 (en) * 2012-06-08 2013-12-11 Alstom Technology Ltd Compact exhaust gas treatment system for aluminium production plant

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2615828A1 (en) * 1976-04-10 1977-10-13 Heinz Hoelter Gas purificn. by addn. of absorbent - in series of stages with sepn. and recycling of absorbent after each stage
DE2702693C3 (en) * 1977-01-24 1982-02-04 Fried. Krupp Gmbh, 4300 Essen Device for carrying out chemical and / or physical processes
AT400004B (en) * 1994-03-29 1995-09-25 Austrian Energy & Environment Flue-gas desulfurization installation

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1442782A1 (en) * 1964-01-31 1969-03-20 Miag Muehlenbau & Ind Gmbh Process for the continuous treatment of grain and / or dust by means of steam and / or gas
DE2056096B2 (en) * 1970-11-14 1978-09-28 Metallgesellschaft Ag, 6000 Frankfurt Process for the separation of hydrogen fluoride from gases

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2671625A2 (en) * 2012-06-08 2013-12-11 Alstom Technology Ltd Compact exhaust gas treatment system for aluminium production plant
EP2671625A3 (en) * 2012-06-08 2014-09-24 Alstom Technology Ltd Compact exhaust gas treatment system for aluminium production plant
US8920540B2 (en) 2012-06-08 2014-12-30 Alstom Technology Ltd Compact air quality control system compartment for aluminium production plant

Also Published As

Publication number Publication date
FR2200042B1 (en) 1977-05-27
DE2246806C2 (en) 1984-03-08
DE2246806A1 (en) 1974-03-28
CH577337A5 (en) 1976-07-15
IT995413B (en) 1975-11-10
SE401461B (en) 1978-05-16
NL179456C (en) 1986-09-16
ES418893A1 (en) 1976-07-01
LU68460A1 (en) 1973-11-26
NL7312519A (en) 1974-03-26
FR2200042A1 (en) 1974-04-19
BE804974A (en) 1974-01-16
NL179456B (en) 1986-04-16

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee