GB1235471A - Precipitation of entrained solids from gases - Google Patents

Precipitation of entrained solids from gases

Info

Publication number
GB1235471A
GB1235471A GB5402967A GB5402967A GB1235471A GB 1235471 A GB1235471 A GB 1235471A GB 5402967 A GB5402967 A GB 5402967A GB 5402967 A GB5402967 A GB 5402967A GB 1235471 A GB1235471 A GB 1235471A
Authority
GB
United Kingdom
Prior art keywords
gas
entrained
deliquescent
precursor
smoke
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
GB5402967A
Inventor
Geoffrey Leonard Parsons
George Woodhouse
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.)
Central Electricity Generating Board
Solvay Solutions UK Ltd
Original Assignee
Albright and Wilson Ltd
Central Electricity Generating Board
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 Albright and Wilson Ltd, Central Electricity Generating Board filed Critical Albright and Wilson Ltd
Publication of GB1235471A publication Critical patent/GB1235471A/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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J1/00—Removing ash, clinker, or slag from combustion chambers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2700/00—Ash removal, handling and treatment means; Ash and slag handling in pulverulent fuel furnaces; Ash removal means for incinerators
    • F23J2700/001—Ash removal, handling and treatment means

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

1,235,471. Treating gases containing entrained solid particles. CENTRAL ELECTRICITY GENERATING BOARD AND ALBRIGHT & WILSON Ltd. 14 June, 1968 [16 June, 1967; 28 Nov., 1967], Nos. 27871/ 67 and 54029/67. Heading B1R. A method of separating entrained solid particles from a gas comprises contacting the gas with a smoke precursor at a temperature sufficient to volatize the smoke precursor, cooling the gas sufficiently to produce a deliquescent dispersion or a deliquescent coating on the entrained particles form the volatilized smoke precursor, and passing the gas in the presence of water vapour through a gas/solids separator. A smoke precursor is defined as a solid, free-flowing material capable of being volatilized into a gas at an elevated temperature and which on cooling produces a deliquescent dispersion in the gas or a deliquescent coating on solidscontained in the gas. Sulphonic acid is a suitable smoke precursor and may be introduced into the hot gas either in aqueous solution or entrained in a carrier gas. The gas/solids separator is preferably an electrostatic precipitator and the amount of water vapour in the gas passed to the separator is between 4 and 15% by weight. In a modified method the smoke precursor may be volatilized into a carrier gas which is introduced with or without cooling into the gas containing the entrained solids.
GB5402967A 1967-06-16 1967-06-16 Precipitation of entrained solids from gases Expired GB1235471A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2787167 1967-06-16

Publications (1)

Publication Number Publication Date
GB1235471A true GB1235471A (en) 1971-06-16

Family

ID=10266644

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5402967A Expired GB1235471A (en) 1967-06-16 1967-06-16 Precipitation of entrained solids from gases

Country Status (1)

Country Link
GB (1) GB1235471A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2557132A1 (en) * 1983-12-21 1985-06-28 Lumbroso Roger Process for ionisation of fly ash from coal boilers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2557132A1 (en) * 1983-12-21 1985-06-28 Lumbroso Roger Process for ionisation of fly ash from coal boilers

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