ATE54162T1 - PROCESS FOR REMOVAL OF PYRITIC ORGANIC AND ELEMENTAL SULFUR FROM COAL. - Google Patents

PROCESS FOR REMOVAL OF PYRITIC ORGANIC AND ELEMENTAL SULFUR FROM COAL.

Info

Publication number
ATE54162T1
ATE54162T1 AT86101271T AT86101271T ATE54162T1 AT E54162 T1 ATE54162 T1 AT E54162T1 AT 86101271 T AT86101271 T AT 86101271T AT 86101271 T AT86101271 T AT 86101271T AT E54162 T1 ATE54162 T1 AT E54162T1
Authority
AT
Austria
Prior art keywords
coal
carbonaceous materials
sulfur
soluble
extracted
Prior art date
Application number
AT86101271T
Other languages
German (de)
Inventor
Charles H Simpson
Original Assignee
Charles H Simpson
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 Charles H Simpson filed Critical Charles H Simpson
Application granted granted Critical
Publication of ATE54162T1 publication Critical patent/ATE54162T1/en

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
    • C10L9/02—Treating solid fuels to improve their combustion by chemical means

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General 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)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Catalysts (AREA)

Abstract

A process for removing sulfur and ash from coal and other carbonaceous materials involving treating an aqueous slurry of coal or other carbonaceous materials at an elevated temperature below the oxidation temperature of the coal or other carbonaceous materials in the presence of an oxidizing agent capable of reducing pyritic sulfides to a soluble state with: (A) an alkaline earth metal and/or alkali metal chloride, a catalyst comprising one or more deliquescent halogen compounds, barium chloride, potassium chloride or mixtures thereof, and one or more reducing oxides, chromate salts or mixtures thereof, and an inorganic acid, or (B) a formulation comprising one or more hypochlorites and the above-described catalyst or catalyst and acid. Sulfur is extracted as sulfate or other soluble sulfurs. In a second embodiment, elemental sulfur may be extracted intermediate to producing sulfate and other soluble sulfur by treating an aqueous slurry of the coal or other carbonaceous materials at an elevated temperature below the oxidation temperature of the coal or other carbonaceous materials with an alkaline earth metal and/or alkali metal chloride and nitric acid. In the second embodiment, sulfur can be extracted as sulfate or other soluble sulfurs by using the process of the first embodiment or by treating the extracted solids with an alkaline earth metal and/or alkali metal chloride with an inorganic acid at an elevated temperature below the oxidation temperature of the coal or other carbonaceous materials in the presence of an oxidizing agent capable of reducing pyritic sulfides to a soluble state.
AT86101271T 1986-01-31 1986-01-31 PROCESS FOR REMOVAL OF PYRITIC ORGANIC AND ELEMENTAL SULFUR FROM COAL. ATE54162T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP86101271A EP0230500B1 (en) 1986-01-31 1986-01-31 Method for removing pyritic, organic, and elemental sulfur from coal

Publications (1)

Publication Number Publication Date
ATE54162T1 true ATE54162T1 (en) 1990-07-15

Family

ID=8194865

Family Applications (1)

Application Number Title Priority Date Filing Date
AT86101271T ATE54162T1 (en) 1986-01-31 1986-01-31 PROCESS FOR REMOVAL OF PYRITIC ORGANIC AND ELEMENTAL SULFUR FROM COAL.

Country Status (3)

Country Link
EP (1) EP0230500B1 (en)
AT (1) ATE54162T1 (en)
DE (1) DE3672267D1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115420585A (en) * 2022-08-25 2022-12-02 萍乡宝海锌营养科技有限公司 Digestion method suitable for accurate analysis of trace elements in sulfide minerals

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3926575A (en) * 1971-07-19 1975-12-16 Trw Inc Removal of pyritic sulfur from coal
US3909213A (en) * 1973-12-17 1975-09-30 Ethyl Corp Desulfurization of coal
US4127390A (en) * 1977-08-25 1978-11-28 Coalmet Corporation Hydrodesulfurization of coal and the like
US4305726A (en) * 1979-12-21 1981-12-15 Brown Jr George E Method of treating coal to remove sulfur and ash

Also Published As

Publication number Publication date
DE3672267D1 (en) 1990-08-02
EP0230500A1 (en) 1987-08-05
EP0230500B1 (en) 1990-06-27

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Legal Events

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