FR2202714A1 - Sulphur dioxide removal from waste gas, prior to atmospheric release - using a non-volatile base to give a sulphite - Google Patents

Sulphur dioxide removal from waste gas, prior to atmospheric release - using a non-volatile base to give a sulphite

Info

Publication number
FR2202714A1
FR2202714A1 FR7236246A FR7236246A FR2202714A1 FR 2202714 A1 FR2202714 A1 FR 2202714A1 FR 7236246 A FR7236246 A FR 7236246A FR 7236246 A FR7236246 A FR 7236246A FR 2202714 A1 FR2202714 A1 FR 2202714A1
Authority
FR
France
Prior art keywords
sulphite
prior
waste gas
give
volatile base
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.)
Granted
Application number
FR7236246A
Other languages
French (fr)
Other versions
FR2202714B1 (en
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.)
IFP Energies Nouvelles IFPEN
Original Assignee
IFP Energies Nouvelles IFPEN
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 IFP Energies Nouvelles IFPEN filed Critical IFP Energies Nouvelles IFPEN
Priority to FR7236246A priority Critical patent/FR2202714A1/en
Priority to JP48111923A priority patent/JPS4972196A/ja
Publication of FR2202714A1 publication Critical patent/FR2202714A1/en
Application granted granted Critical
Publication of FR2202714B1 publication Critical patent/FR2202714B1/fr
Granted 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
    • B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/02—Preparation of sulfur; Purification
    • C01B17/04—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides
    • C01B17/05—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides by wet processes

Landscapes

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

Abstract

is removed from waste gas prior to release to the atmosphere by contacting the gas with a non-volatile base, esp. triethanolamine in aq. soln. at 30-85 degrees C, the sulphite soln. formed is treated at 100-160 degrees C with a gas rich in water to regenerate the absorbing soln. and produce a gaseous disengagement contg. SO2 and water. The gas effluent is then treated with H2S to produce S which ppts. and is collected.
FR7236246A 1972-10-04 1972-10-12 Sulphur dioxide removal from waste gas, prior to atmospheric release - using a non-volatile base to give a sulphite Granted FR2202714A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR7236246A FR2202714A1 (en) 1972-10-12 1972-10-12 Sulphur dioxide removal from waste gas, prior to atmospheric release - using a non-volatile base to give a sulphite
JP48111923A JPS4972196A (en) 1972-10-04 1973-10-04

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7236246A FR2202714A1 (en) 1972-10-12 1972-10-12 Sulphur dioxide removal from waste gas, prior to atmospheric release - using a non-volatile base to give a sulphite

Publications (2)

Publication Number Publication Date
FR2202714A1 true FR2202714A1 (en) 1974-05-10
FR2202714B1 FR2202714B1 (en) 1975-06-13

Family

ID=9105576

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7236246A Granted FR2202714A1 (en) 1972-10-04 1972-10-12 Sulphur dioxide removal from waste gas, prior to atmospheric release - using a non-volatile base to give a sulphite

Country Status (1)

Country Link
FR (1) FR2202714A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2384713A1 (en) * 1977-03-25 1978-10-20 Union Carbide Corp PROCESS FOR ELIMINATION OF SULPHUROUS ANHYDRIDE FROM RESIDUAL GASES AND FOR ELIMINATING SALTS STABLE TO HEAT FROM CIRCUITS IN WHICH THEY ACCUMULATE

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7202764A (en) * 1971-03-09 1972-09-12

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7202764A (en) * 1971-03-09 1972-09-12

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2384713A1 (en) * 1977-03-25 1978-10-20 Union Carbide Corp PROCESS FOR ELIMINATION OF SULPHUROUS ANHYDRIDE FROM RESIDUAL GASES AND FOR ELIMINATING SALTS STABLE TO HEAT FROM CIRCUITS IN WHICH THEY ACCUMULATE

Also Published As

Publication number Publication date
FR2202714B1 (en) 1975-06-13

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Legal Events

Date Code Title Description
ST Notification of lapse