GB2015382A - Gas Cleaning - Google Patents

Gas Cleaning

Info

Publication number
GB2015382A
GB2015382A GB7911186A GB7911186A GB2015382A GB 2015382 A GB2015382 A GB 2015382A GB 7911186 A GB7911186 A GB 7911186A GB 7911186 A GB7911186 A GB 7911186A GB 2015382 A GB2015382 A GB 2015382A
Authority
GB
United Kingdom
Prior art keywords
plasma
precipitator
gas
electro
sulphur
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.)
Withdrawn
Application number
GB7911186A
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.)
Lodge Cottrell Ltd
Original Assignee
Lodge Cottrell Ltd
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 Lodge Cottrell Ltd filed Critical Lodge Cottrell Ltd
Priority to GB7911186A priority Critical patent/GB2015382A/en
Publication of GB2015382A publication Critical patent/GB2015382A/en
Withdrawn legal-status Critical Current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

Abstract

In the removal of dust from a sulphur dioxide-containing dust-laden gas stream the gas stream is conditioned by converting sulphur dioxide into sulphur trioxide by the action of a plasma; and the gas, containing the resulting sulphur trioxide, is passed through an electro- precipitator 12. The plasma may be produced in a plasma generator 14 by subjecting nitrogen to electric discharge to produce active atoms, which form sulphur trioxide through the intermediate step of forming active oxygen by reaction with nitric oxide in the gas to be cleaned; or an oxygen plasma may be used. The sulphur dioxide content of the gas may be further reduced by introducing additional plasma downstream of the electro- precipitator 12 and removing the resultant sulphur trioxide in an acid mist electro-precipitator; in a modification of this process, the first electro-precipitator 12 is replaced by a bag filter. A portion of the gas may be recycled from downstream to upstream of precipitator 12. The plasma generator includes an arc rotated by a polyphase A.C. field, thereby spinning and mixing the plasma. <IMAGE>
GB7911186A 1978-01-06 1979-03-30 Gas Cleaning Withdrawn GB2015382A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7911186A GB2015382A (en) 1978-01-06 1979-03-30 Gas Cleaning

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB46878 1978-01-06
GB7911186A GB2015382A (en) 1978-01-06 1979-03-30 Gas Cleaning

Publications (1)

Publication Number Publication Date
GB2015382A true GB2015382A (en) 1979-09-12

Family

ID=26235942

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7911186A Withdrawn GB2015382A (en) 1978-01-06 1979-03-30 Gas Cleaning

Country Status (1)

Country Link
GB (1) GB2015382A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2482477A1 (en) * 1980-05-16 1981-11-20 Ver Saar Elektrizitaets Ag PROCESS FOR CONDITIONING SMOKE GAS WITH A VIEW TO SEPARATING FINE ASH FROM ELECTROFILTER
WO1995025597A1 (en) * 1994-03-24 1995-09-28 Abb Management Ag Process for conditioning waste gases

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2482477A1 (en) * 1980-05-16 1981-11-20 Ver Saar Elektrizitaets Ag PROCESS FOR CONDITIONING SMOKE GAS WITH A VIEW TO SEPARATING FINE ASH FROM ELECTROFILTER
WO1995025597A1 (en) * 1994-03-24 1995-09-28 Abb Management Ag Process for conditioning waste gases

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)