GB1406109A - Conditioning flue gas with h2so4 - Google Patents

Conditioning flue gas with h2so4

Info

Publication number
GB1406109A
GB1406109A GB5028972A GB5028972A GB1406109A GB 1406109 A GB1406109 A GB 1406109A GB 5028972 A GB5028972 A GB 5028972A GB 5028972 A GB5028972 A GB 5028972A GB 1406109 A GB1406109 A GB 1406109A
Authority
GB
United Kingdom
Prior art keywords
flue gas
acid
sulphuric acid
vapourised
conditioning
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
GB5028972A
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.)
Universal Oil Products Co
Original Assignee
Universal Oil Products Co
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 Universal Oil Products Co filed Critical Universal Oil Products Co
Priority to GB5028972A priority Critical patent/GB1406109A/en
Publication of GB1406109A publication Critical patent/GB1406109A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/01—Pretreatment of the gases prior to electrostatic precipitation
    • B03C3/013—Conditioning by chemical additives, e.g. with SO3
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D51/00—Auxiliary pretreatment of gases or vapours to be cleaned
    • B01D51/10—Conditioning the gas to be cleaned

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Electrostatic Separation (AREA)

Abstract

1406109 Conditioning flue gas with H 2 SO 4 ; electrostatic precipitators UNIVERSAL OIL PRODUCTS CO 1 Nov 1972 50289/72 Headings BIT, and B2J In a method and apparatus for conditioning a fly ash laden flue gas with vapourised sulphuric acid prior to electrical precipitation, air and/or steam from line 1 is heated at 5 to above 400‹F and passed to mixing zone 12 where it is mixed with sulphuric acid fed through pump 14 and control valve 15, the vapourised mixture containing substantially decomposed sulphuric acid is fed to a flue gas duct 21 through manifold 19 where sulphuric acid is adsorbed onto the fly ash particles. The particles then pass to an electrical precipitator (not shown) where with their resistance to giving up their electrostatic charge lowered by the acid they can be more easily precipitated, and "back discharge" and "back corona" are reduced. The acid inlet valve 15 is controlled by dew point analyser 33 so that all the acid supplied is vapourised in zone 17 upstream of duct 21.
GB5028972A 1972-11-01 1972-11-01 Conditioning flue gas with h2so4 Expired GB1406109A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5028972A GB1406109A (en) 1972-11-01 1972-11-01 Conditioning flue gas with h2so4

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5028972A GB1406109A (en) 1972-11-01 1972-11-01 Conditioning flue gas with h2so4

Publications (1)

Publication Number Publication Date
GB1406109A true GB1406109A (en) 1975-09-17

Family

ID=10455364

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5028972A Expired GB1406109A (en) 1972-11-01 1972-11-01 Conditioning flue gas with h2so4

Country Status (1)

Country Link
GB (1) GB1406109A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5288309A (en) * 1992-04-07 1994-02-22 Wilhelm Environmental Technologies, Inc. Flue gas conditioning agent demand control apparatus
GB2270861A (en) * 1992-04-07 1994-03-30 Wilhelm Env Tech Inc Flue gas conditioning system
US5356597A (en) * 1992-04-07 1994-10-18 Wilhelm Environmental Technologies, Inc. In-duct flue gas conditioning system
WO1995005343A1 (en) * 1993-08-19 1995-02-23 Ogden Projects, Inc. Method and apparatus for reducing ammonia in combustion gases
US5547495A (en) * 1992-04-07 1996-08-20 Wilhelm Environmental Technologies, Inc. Flue gas conditioning system
US6224653B1 (en) * 1998-12-29 2001-05-01 Pulsatron Technology Corporation Electrostatic method and means for removing contaminants from gases

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5288309A (en) * 1992-04-07 1994-02-22 Wilhelm Environmental Technologies, Inc. Flue gas conditioning agent demand control apparatus
US5288303A (en) * 1992-04-07 1994-02-22 Wilhelm Environmental Technologies, Inc. Flue gas conditioning system
GB2270861A (en) * 1992-04-07 1994-03-30 Wilhelm Env Tech Inc Flue gas conditioning system
US5356597A (en) * 1992-04-07 1994-10-18 Wilhelm Environmental Technologies, Inc. In-duct flue gas conditioning system
US5547495A (en) * 1992-04-07 1996-08-20 Wilhelm Environmental Technologies, Inc. Flue gas conditioning system
GB2270861B (en) * 1992-04-07 1996-10-16 Wilhelm Env Tech Inc Flue gas conditioning system
WO1995005343A1 (en) * 1993-08-19 1995-02-23 Ogden Projects, Inc. Method and apparatus for reducing ammonia in combustion gases
US6224653B1 (en) * 1998-12-29 2001-05-01 Pulsatron Technology Corporation Electrostatic method and means for removing contaminants from gases

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Legal Events

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