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FR2104393A5 - Treatment of coal - with sodium carbonate or bicarbonate to reduce soot and smoke and improve combustion - Google Patents

Treatment of coal - with sodium carbonate or bicarbonate to reduce soot and smoke and improve combustion

Info

Publication number
FR2104393A5
FR2104393A5 FR7129856A FR7129856A FR2104393A5 FR 2104393 A5 FR2104393 A5 FR 2104393A5 FR 7129856 A FR7129856 A FR 7129856A FR 7129856 A FR7129856 A FR 7129856A FR 2104393 A5 FR2104393 A5 FR 2104393A5
Authority
FR
France
Prior art keywords
coal
pref
combustion
smoke
bicarbonate
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
FR7129856A
Other languages
French (fr)
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.)
Individual
Original Assignee
Individual
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
Priority claimed from ZA705840A external-priority patent/ZA705840B/en
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of FR2104393A5 publication Critical patent/FR2104393A5/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • C10L9/00—Treating solid fuels to improve their combustion
    • C10L9/10—Treating solid fuels to improve their combustion by using additives
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • C10L10/00—Use of additives to fuels or fires for particular purposes
    • C10L10/02—Use of additives to fuels or fires for particular purposes for reducing smoke development
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • C10L10/00—Use of additives to fuels or fires for particular purposes
    • C10L10/04—Use of additives to fuels or fires for particular purposes for minimising corrosion or incrustation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)

Abstract

The coal is treated with =0.2 wt.%, pref. >=0.02%, of Na2CO3, or NaHCO3, pref. as an aq. soln. Additional quantities may be used to reduce the SO2 liberated on combustion, pref. 1 1/2 pts. per pt. SO2, The coal is pref. treated with a wetting agent before treatment with carbonate and a binder used to bond the latter to the coal. The amount of additive is dependent on the temp. in the combustion zone over the coal bed and the type and size of combustion unit. The temp. of complete combustion of C to CO2 is reduced by about 400 degrees C. in presence of Na2CO3, leading to almost complete utilisation of the coal. Volatile constituents are burnt in the zone over the coal bed instead of forming soot and smoke.
FR7129856A 1970-08-25 1971-08-16 Treatment of coal - with sodium carbonate or bicarbonate to reduce soot and smoke and improve combustion Expired FR2104393A5 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA705840A ZA705840B (en) 1970-08-25 1970-08-25 Improvements in coal
ZA706639 1970-09-29

Publications (1)

Publication Number Publication Date
FR2104393A5 true FR2104393A5 (en) 1972-04-14

Family

ID=27131016

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7129856A Expired FR2104393A5 (en) 1970-08-25 1971-08-16 Treatment of coal - with sodium carbonate or bicarbonate to reduce soot and smoke and improve combustion

Country Status (3)

Country Link
DE (1) DE2141422A1 (en)
FR (1) FR2104393A5 (en)
RO (1) RO61574A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0338103A1 (en) * 1983-08-26 1989-10-25 Gerhard Dipl.-Ing. Emmerichs Process for diminishing harmful emissions when operating coal combustion plants

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0338103A1 (en) * 1983-08-26 1989-10-25 Gerhard Dipl.-Ing. Emmerichs Process for diminishing harmful emissions when operating coal combustion plants

Also Published As

Publication number Publication date
RO61574A (en) 1976-12-15
DE2141422A1 (en) 1972-03-02

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Legal Events

Date Code Title Description
ST Notification of lapse