DE2444781A1 - Gas purification to remote sulphur dioxide - with calcium cpds in presence of sulphuric and other acids to prevent deposition of calcium carbonate - Google Patents

Gas purification to remote sulphur dioxide - with calcium cpds in presence of sulphuric and other acids to prevent deposition of calcium carbonate

Info

Publication number
DE2444781A1
DE2444781A1 DE19742444781 DE2444781A DE2444781A1 DE 2444781 A1 DE2444781 A1 DE 2444781A1 DE 19742444781 DE19742444781 DE 19742444781 DE 2444781 A DE2444781 A DE 2444781A DE 2444781 A1 DE2444781 A1 DE 2444781A1
Authority
DE
Germany
Prior art keywords
calcium
ions
acids
gas
calcium carbonate
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.)
Ceased
Application number
DE19742444781
Other languages
German (de)
Inventor
Heinz Gresch
Heinz Hoelter
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.)
Individual
Original Assignee
Individual
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
Priority claimed from DE19742415693 external-priority patent/DE2415693B2/en
Priority to DE19742444781 priority Critical patent/DE2444781A1/en
Application filed by Individual filed Critical Individual
Priority to DE19752509788 priority patent/DE2509788A1/en
Priority to DE19752511140 priority patent/DE2511140A1/en
Priority to DE19752519939 priority patent/DE2519939A1/en
Priority to GB34212/75A priority patent/GB1505281A/en
Priority to AT639475A priority patent/AT356635B/en
Priority to ZA00755369A priority patent/ZA755369B/en
Priority to US05/606,785 priority patent/US4080428A/en
Priority to FR7526094A priority patent/FR2285170A1/en
Priority to NL7510250A priority patent/NL7510250A/en
Priority to BR7505565*A priority patent/BR7505565A/en
Priority to AU84432/75A priority patent/AU493917B2/en
Priority to BE2054540A priority patent/BE832940A/en
Priority to SE7509770A priority patent/SE423866B/en
Priority to CH1203075A priority patent/CH617867A5/de
Priority to IT2735575A priority patent/IT1042642B/en
Priority to DK419475A priority patent/DK419475A/en
Priority to CA235,756A priority patent/CA1077240A/en
Priority to JP50113519A priority patent/JPS5155778A/en
Publication of DE2444781A1 publication Critical patent/DE2444781A1/en
Priority to GB4849677A priority patent/GB1545175A/en
Priority to US05/855,268 priority patent/US4222993A/en
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F11/00—Compounds of calcium, strontium, or barium
    • C01F11/46—Sulfates
    • C01F11/464—Sulfates of Ca from gases containing sulfur oxides
    • 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
    • B01D53/1456—Removing acid components
    • 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
    • B01D53/48—Sulfur compounds
    • B01D53/50—Sulfur oxides
    • B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05C—NITROGENOUS FERTILISERS
    • C05C3/00—Fertilisers containing other salts of ammonia or ammonia itself, e.g. gas liquor

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Treating Waste Gases (AREA)

Abstract

Method of purifying effluent gas e.g. smoke and other residual gases contg. SO2 where the gas is contacted with a washing liq. working in a closed cycle to which CaCO3, CaO, or Ca(OH)2 is added, to fix the SO2 and where the Ca cpd. formed is oxidised with atmospheric air to CaSO4 and sepd. from the closed cycle with the aid additives e.g. salts and/or acids which increase the removal of the Ca, is claimed in which the washing liq. is cleaned of solid particles prior to contact with teh gas. Incrustation of the washing plant with calcium carbonate is avoided while the atm. of SO2 absorbed is increased.

Description

Beschreibung und Brläuterung zur Zusatzpatentanmeldung "Rauchgaswäsche mit Ionen-Impfung" Zusatzanmeldung zur Hauptanmeldung P 24 15 693.2 Im Hauptpatent P 24 15 693 wird beschrieben, daß eine intensive Waschung von Rauchgas oder anderen Gasen, die mit Schwefeldioxid angereichert sind, durch im Kreislauf geführte Waschflüssigkeiten vorgenommen werden kann, wobei die Waschflüssigkeiten mit Chlorionen angereichert sind.Description and description of the additional patent application "Flue gas scrubbing with ion vaccination "Additional application to the main application P 24 15 693.2 in the main patent P 24 15 693 describes that intensive scrubbing of flue gas or other Gases that are enriched with sulfur dioxide by circulating scrubbing liquids can be made, the washing liquids enriched with chlorine ions are.

Weiterhin wird erfindungsgemäß vorgeschlagen, außer Chlorionen alle weiteren Ionen der Halogengruppe der Waschflüssigkeit zuzusetzen. Weiterhin können alle Anionen, Komplexverbindungen und Verbindungen anorganischer oder organischer Art zum Einsatz kommen, die mit Calciumionen wasserlösliche Verbindungen bilden und sich bei Anwesenheit von schwefeliger Säure im neutralen oder schwach saurem Medium gegen SO2-Ionen austauschen lassen und im alkalischen Medium die wasserlöslichen Calciumverbindungen zurückbilden, z.B.Furthermore, it is proposed according to the invention, all except for chlorine ions to add further ions of the halogen group to the washing liquid. Furthermore you can all anions, complex compounds and compounds of inorganic or organic compounds Art are used, which form water-soluble compounds with calcium ions and in the presence of sulphurous acid in the neutral or weakly acidic Have the medium exchanged for SO2 ions and the water-soluble ones in the alkaline medium Regress calcium compounds, e.g.

1) Ionen der Halogengruppe 2) Ionen der Karbonsäure 3) Ionen der Salze und Säuren des Stickstoffs und Phosphor usw. 1) Ions of the halogen group 2) Ions of the carboxylic acid 3) Ions of the Salts and acids of nitrogen and phosphorus, etc.

zugesetzt werden, um Inkrustierungen zu verhindern und eine hohe Kalknutzung zu erreichen. Patentansprüch:added to prevent incrustations and one to achieve high use of lime. Patent claims:

Claims (1)

Patentanspruch: Anspruch 1: Verfahren zur Reinigung von rauchgas und anderen Gasen, die Schwefeloxid enthalten, bei dem das Gas mit einer im Kreislauf geführten Waschflüssigkeit in Berührung gebracht wird, die Calciumkarbonat und/oder Calciiijnhydroxid enthalt, um das ochwefeldioxid als Calciumsulfat und gegebenenfalls weitere schwer lösliche und/oder unlösliche Stoffe abzuscheiden, dadurch gekennzeichnet, daß zu der im Kreislauf geführten Waschflüssigkeit Galciumoxid und karbonatszerstörende Impfstoffe wie alle Ionen der Halogengruppe sowie alle Anionen, Komplexer bindungen und Verbindungen anorganischer Art zum Einsatz kommen, die mit Calciumionen wasserlösliche Verbindungen bilden und sich bei Änwesenheit von schwefeliger Säure im neutralen oder schwach saurem Medium gegen SO2-Ionen austauschen lassen und im alkalischen Medium die wasserlöslichen Calciumverbindungen zurü.ckbilden.Claim: Claim 1: Process for cleaning flue gas and other gases that contain sulfur oxide, in which the gas is circulated with one guided washing liquid is brought into contact, the calcium carbonate and / or Calcium hydroxide contains the sulfur dioxide as calcium sulfate and optionally to separate other poorly soluble and / or insoluble substances, characterized in that that to the circulating washing liquid Galciumoxid and carbonate-destroying Vaccines like all ions of the halogen group as well as all anions, complex bonds and compounds of an inorganic type are used which are water-soluble with calcium ions Compounds form and in the absence of sulphurous acid in the neutral or weakly acidic medium can be exchanged for SO2 ions and in an alkaline medium Medium to restore the water-soluble calcium compounds.
DE19742444781 1974-04-01 1974-09-19 Gas purification to remote sulphur dioxide - with calcium cpds in presence of sulphuric and other acids to prevent deposition of calcium carbonate Ceased DE2444781A1 (en)

Priority Applications (21)

Application Number Priority Date Filing Date Title
DE19742444781 DE2444781A1 (en) 1974-04-01 1974-09-19 Gas purification to remote sulphur dioxide - with calcium cpds in presence of sulphuric and other acids to prevent deposition of calcium carbonate
DE19752509788 DE2509788A1 (en) 1974-04-01 1975-03-06 Gas purification to remote sulphur dioxide - with calcium cpds in presence of sulphuric and other acids to prevent deposition of calcium carbonate
DE19752511140 DE2511140A1 (en) 1974-04-01 1975-03-14 Gas purification to remote sulphur dioxide - with calcium cpds in presence of sulphuric and other acids to prevent deposition of calcium carbonate
DE19752519939 DE2519939A1 (en) 1974-04-01 1975-05-05 Gas purification to remote sulphur dioxide - with calcium cpds in presence of sulphuric and other acids to prevent deposition of calcium carbonate
AT639475A AT356635B (en) 1974-09-19 1975-08-18 METHOD AND DEVICE FOR PURIFYING SMOKE GASES AND OTHER EXHAUST GASES CONTAINING SULFUR DIOXIDE
GB34212/75A GB1505281A (en) 1974-09-19 1975-08-18 Process and apparatus for the purification of flue and other waste gas
ZA00755369A ZA755369B (en) 1974-09-19 1975-08-21 Improvements in or relating to process and apparatus for the purification of flue and other waste gases
US05/606,785 US4080428A (en) 1974-09-19 1975-08-22 Process for the purification of flue and other waste gas
FR7526094A FR2285170A1 (en) 1974-09-19 1975-08-22 PROCESS AND DEVICE FOR PURIFYING FUME GASES AND OTHER WASTE GASES CONTAINING SULPHUROUS ANHYDRIDE
NL7510250A NL7510250A (en) 1974-09-19 1975-08-29 METHOD AND EQUIPMENT FOR THE PURIFICATION OF SMOKE GASES AND OTHER EXHAUST GASES CONTAINING SULFUR DIOXIDE.
BR7505565*A BR7505565A (en) 1974-09-19 1975-08-29 PROCESS AND APPARATUS FOR PURIFYING SMOKE GASES AND OTHER EXHAUST GASES CONTAINING SULPHURUS ANHYDRATE
AU84432/75A AU493917B2 (en) 1975-09-01 Improvements in or relating to process and apparatus forthe purification of flue andother waste gas
BE2054540A BE832940A (en) 1974-09-19 1975-09-01 PROCESS AND DEVICE FOR PURIFYING FUME GASES AND OTHER WASTE GASES CONTAINING SULPHUROUS ANHYDRIDE
SE7509770A SE423866B (en) 1974-09-19 1975-09-03 VIEW TO CLEAN Sulfur Dioxide-containing Smoke and Other Exhausts WHEN THE GAS IS CONTACTED WITH LAUNDRY FLUID AND DEVICE FOR IMPLEMENTATION OF THE PROCEDURE
CH1203075A CH617867A5 (en) 1974-09-19 1975-09-17
IT2735575A IT1042642B (en) 1974-09-19 1975-09-18 Gas purification to remote sulphur dioxide - with calcium cpds in presence of sulphuric and other acids to prevent deposition of calcium carbonate
DK419475A DK419475A (en) 1974-09-19 1975-09-18 PROCEDURE AND APPARATUS FOR CLEANING GAS GAS AND OTHER EXHAUST GASES CONTAINING SULFUR DIOXIDE
CA235,756A CA1077240A (en) 1974-09-19 1975-09-18 Process and apparatus for the purification of flue and other waste gas
JP50113519A JPS5155778A (en) 1974-09-19 1975-09-19 Haigasuoyobi nisankaioo fukumu sonotano gasuojokasuruhohooyobi sochi
GB4849677A GB1545175A (en) 1974-09-19 1977-11-22 Removal of noxious contaminants from gas
US05/855,268 US4222993A (en) 1974-09-19 1977-11-28 Removal of noxious contaminants from gas

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19742415693 DE2415693B2 (en) 1974-04-01 1974-04-01 Process for cleaning flue gases or other gases
DE19742444781 DE2444781A1 (en) 1974-04-01 1974-09-19 Gas purification to remote sulphur dioxide - with calcium cpds in presence of sulphuric and other acids to prevent deposition of calcium carbonate

Publications (1)

Publication Number Publication Date
DE2444781A1 true DE2444781A1 (en) 1976-04-08

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE19742444781 Ceased DE2444781A1 (en) 1974-04-01 1974-09-19 Gas purification to remote sulphur dioxide - with calcium cpds in presence of sulphuric and other acids to prevent deposition of calcium carbonate

Country Status (1)

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DE (1) DE2444781A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2530538A1 (en) * 1975-07-09 1977-01-27 Hoelter Heinz Gas scrubbing incorporating gypsum or ammonium sulphate prodn. - from lime and acids or salts forming water soluble calcium salts in liquor
DE2538312A1 (en) * 1975-08-28 1977-03-10 Heinz Hoelter Flue gas scrubbing soln. - contg. water and anions forming soluble cpds. with calcium esp. chloride and formate ions
DE2730845A1 (en) * 1975-07-19 1979-01-25 Heinz Hoelter Purificn. of gas contg. sulphur di:oxide by washing - using an additive contg. a poly:carboxylic acid
DE3132574A1 (en) * 1980-08-19 1982-05-19 Kureha Kagaku Kogyo K.K., Tokyo METHOD FOR REMOVING SULFUR DIOXIDE FROM A COMBUSTION EXHAUST GAS

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2405968A1 (en) * 1973-02-10 1974-08-22 Kureha Chemical Ind Co Ltd METHOD FOR REMOVING SULFUR DIOXIDE FROM COMBUSTION GAS
DE2327967A1 (en) * 1973-05-10 1974-12-19 Heinz Hoelter METHODS FOR SEPARATING DUST, SO DEEP 2, FLUORINE AND SIMILAR POLLUTANTS FROM SMOKE GASES

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2405968A1 (en) * 1973-02-10 1974-08-22 Kureha Chemical Ind Co Ltd METHOD FOR REMOVING SULFUR DIOXIDE FROM COMBUSTION GAS
DE2327967A1 (en) * 1973-05-10 1974-12-19 Heinz Hoelter METHODS FOR SEPARATING DUST, SO DEEP 2, FLUORINE AND SIMILAR POLLUTANTS FROM SMOKE GASES

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2530538A1 (en) * 1975-07-09 1977-01-27 Hoelter Heinz Gas scrubbing incorporating gypsum or ammonium sulphate prodn. - from lime and acids or salts forming water soluble calcium salts in liquor
DE2730845A1 (en) * 1975-07-19 1979-01-25 Heinz Hoelter Purificn. of gas contg. sulphur di:oxide by washing - using an additive contg. a poly:carboxylic acid
DE2538312A1 (en) * 1975-08-28 1977-03-10 Heinz Hoelter Flue gas scrubbing soln. - contg. water and anions forming soluble cpds. with calcium esp. chloride and formate ions
DE3132574A1 (en) * 1980-08-19 1982-05-19 Kureha Kagaku Kogyo K.K., Tokyo METHOD FOR REMOVING SULFUR DIOXIDE FROM A COMBUSTION EXHAUST GAS

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