GB1379696A - Methods of filtering and purifying dust-laden gases - Google Patents

Methods of filtering and purifying dust-laden gases

Info

Publication number
GB1379696A
GB1379696A GB1478973A GB1478973A GB1379696A GB 1379696 A GB1379696 A GB 1379696A GB 1478973 A GB1478973 A GB 1478973A GB 1478973 A GB1478973 A GB 1478973A GB 1379696 A GB1379696 A GB 1379696A
Authority
GB
United Kingdom
Prior art keywords
dust
recycled
filter
filtering
march
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
GB1478973A
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.)
LUHR VDI STAUBTECHNIK HEINRICH
Original Assignee
LUHR VDI STAUBTECHNIK HEINRICH
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 LUHR VDI STAUBTECHNIK HEINRICH filed Critical LUHR VDI STAUBTECHNIK HEINRICH
Publication of GB1379696A publication Critical patent/GB1379696A/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
    • B01D53/48—Sulfur compounds
    • B01D53/50—Sulfur oxides
    • B01D53/508—Sulfur oxides by treating the gases with solids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
    • B01D46/04—Cleaning filters
    • 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Biomedical Technology (AREA)
  • Treating Waste Gases (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Separation Of Gases By Adsorption (AREA)
  • Gas Separation By Absorption (AREA)

Abstract

1379696 Purifying dust laden gas in a filter HEINRICH LUHR VDI STAUBTECHNIK 27 March 1973 [28 March 1972] 14789/73 Heading BIT In filtering dust-laden gas in which the filtered dust is recycled to agglomerate incoming fine dust, chemical additives are added to the recycled dust to remove sulphur and chlorine compounds, e.g. (from flue gas). The filter is a pocket or bag filter; dust is recycled in a quantity per unit time 2-100 times the quantity of unfiltered dust arriving per unit time, and dust is permanently removed at the same rate at which unfiltered dust arrives. The chemical additive may be an oxide or hydroxide of an alkali metal and alkaline earth metal or of aluminium, (including burnt lime and calcined dolomite) and may be in suspension or powder form.
GB1478973A 1972-03-28 1973-03-27 Methods of filtering and purifying dust-laden gases Expired GB1379696A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722215065 DE2215065B2 (en) 1972-03-28 1972-03-28 Process for removing sulfur or chlorine compounds from dust or flue gases

Publications (1)

Publication Number Publication Date
GB1379696A true GB1379696A (en) 1975-01-08

Family

ID=5840405

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1478973A Expired GB1379696A (en) 1972-03-28 1973-03-27 Methods of filtering and purifying dust-laden gases

Country Status (8)

Country Link
JP (1) JPS4992669A (en)
AT (1) AT358542B (en)
DD (1) DD103815A5 (en)
DE (1) DE2215065B2 (en)
FR (1) FR2177974B1 (en)
GB (1) GB1379696A (en)
NO (1) NO133016B (en)
SU (1) SU535886A3 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2721587A1 (en) * 1977-05-13 1978-11-16 Standard Filterbau Gmbh Gas treatment to remove acidic impurities - by adding slaked lime together with quicklime to bind water formed and filtering, avoiding blockages
DE2820357A1 (en) * 1978-05-10 1979-11-15 Metallgesellschaft Ag METHOD FOR REMOVING SULFUR OXIDS FROM COMBUSTION EXHAUST GASES
GR75064B (en) * 1978-05-19 1984-07-13 Niro Atomizer As
DK145672C (en) * 1979-07-05 1983-07-18 Niro Atomizer As PROCEDURE FOR THE PREPARATION OF AN AGENT FOR THE NEUTRALIZATION OF SOURCE INGREDIENTS IN ROEGGAS AND USE OF THE AGENT
DE3813365A1 (en) * 1988-04-21 1989-11-02 Bmd Garant Entstaubungstechnik METHOD AND SYSTEM FOR PURIFYING THE EXHAUST GASES FROM ALUMINUM MELTING PROCESSES

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2875844A (en) * 1957-03-21 1959-03-03 Wheelabrator Corp Method and apparatus for the removal or recovery of vapors from air
GB1119432A (en) * 1965-01-30 1968-07-10 Mitsubishi Heavy Ind Ltd Gas-powder contact process and apparatus therefor

Also Published As

Publication number Publication date
NO133016B (en) 1975-11-17
FR2177974A1 (en) 1973-11-09
FR2177974B1 (en) 1976-11-05
DD103815A5 (en) 1974-02-12
ATA183373A (en) 1980-02-15
JPS4992669A (en) 1974-09-04
DE2215065A1 (en) 1973-10-11
DE2215065B2 (en) 1974-02-07
AT358542B (en) 1980-09-10
SU535886A3 (en) 1976-11-15

Similar Documents

Publication Publication Date Title
HUP9801358A2 (en) Process for purifying flue gas containing nitrogen oxides
GB1458417A (en) Methods and apparatus for filtering dust or smoke-laden gases containing noxious chemical substances
US3808774A (en) Abatement of acid gas emissions
GB1464638A (en) Purification of gases
GB1387485A (en) Method of and apparatus for filtering gases
EP0382700A3 (en) Regenerable filter
ES406429A1 (en) Filter arrangement
GB1379696A (en) Methods of filtering and purifying dust-laden gases
US3933978A (en) Method of filtering dust-laden gases
GB1387551A (en) Process for separating sulphur oxides from gas streams
ES430368A1 (en) Apparatus for purifying a raw gas or suspended solid particles
JPS5745319A (en) Method of cleaning filter cloth by compressed gas-pulse when separating solid from gas
GB1339261A (en) Treatmetn of brine to recover mercury
ZA812612B (en) Recovery of particles rich in carbon from aqueous suspensions containing same
GB1444686A (en) Method of concentrating gallium
GB1414049A (en) Methods of filtring gases
GB1433761A (en) Process for the regenration of solid sorbents
JPS54114488A (en) Absorbing removal of sulfur oxide from exhaust gas by using calcium ionn containing red muddy slurry
ES2038917A1 (en) High purity zinc oxide(s) prodn. from impure oxide(s)
GB1421684A (en) Purification of dust-laden gases
ZA722389B (en) Dust particles from a dust laden stream of gases existing from a multiple hearth furnace and reinjection of the dust particles into the furnace
SU633557A1 (en) Adhesive-bound non-woven filtering materials for purifying gases from aerosols
Squires et al. Panel Bed Filters for Simultaneous Removal of Fly Ash and Sulfur Dioxide: III. Reaction of Sulfur Dioxide with Half-Calcined Dolomite
JPS6438120A (en) Ceramics filter
ZA81601B (en) Filter for dedusting hot gases laden with fine-grain solid particles

Legal Events

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