FR2267364A1 - Isolation of low-ash solid fuel from coal - by solvent extraction in presence of carbon monoxide and steam - Google Patents

Isolation of low-ash solid fuel from coal - by solvent extraction in presence of carbon monoxide and steam

Info

Publication number
FR2267364A1
FR2267364A1 FR7412712A FR7412712A FR2267364A1 FR 2267364 A1 FR2267364 A1 FR 2267364A1 FR 7412712 A FR7412712 A FR 7412712A FR 7412712 A FR7412712 A FR 7412712A FR 2267364 A1 FR2267364 A1 FR 2267364A1
Authority
FR
France
Prior art keywords
coal
ash
low
steam
result
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
FR7412712A
Other languages
French (fr)
Other versions
FR2267364B1 (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.)
Gulf Oil Corp
Original Assignee
Gulf Oil Corp
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 Gulf Oil Corp filed Critical Gulf Oil Corp
Priority to FR7412712A priority Critical patent/FR2267364A1/en
Publication of FR2267364A1 publication Critical patent/FR2267364A1/en
Application granted granted Critical
Publication of FR2267364B1 publication Critical patent/FR2267364B1/fr
Granted 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, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • 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)

Abstract

Low-ash solid carbonaceous fuels are produced from ash-contg. coal by (a) extracting the coal with an aromatic solvent at 370-510 degrees C and an excess pressure of 35-350 kg/cm2 in the presence of 0,095-2.5 Nm3 CO and 0.2-1.5 kg steam per kg of dry coal, (b) adjusting the extraction conditions so that the 99 degrees C viscosity of the solvent first increases by a factor of >=20 as a result of extraction of carbonaceous fuel from the coal, this factor than reduces to 10 as a result of depolymerisation of the carbonaceous fuel, and extraction is stopped before this factor again increases to >10 as a result of repolymerisation, (c) the undissolved part of the coal is sepd. from the soln. (d) an ash-free carbonaceous fuel is solifidied by cooling. The process gives high yields of solid product and can be used with a variety of coal types, e.g. bituminous coal, black coal or lignite.
FR7412712A 1974-04-11 1974-04-11 Isolation of low-ash solid fuel from coal - by solvent extraction in presence of carbon monoxide and steam Granted FR2267364A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7412712A FR2267364A1 (en) 1974-04-11 1974-04-11 Isolation of low-ash solid fuel from coal - by solvent extraction in presence of carbon monoxide and steam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7412712A FR2267364A1 (en) 1974-04-11 1974-04-11 Isolation of low-ash solid fuel from coal - by solvent extraction in presence of carbon monoxide and steam

Publications (2)

Publication Number Publication Date
FR2267364A1 true FR2267364A1 (en) 1975-11-07
FR2267364B1 FR2267364B1 (en) 1978-03-31

Family

ID=9137533

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7412712A Granted FR2267364A1 (en) 1974-04-11 1974-04-11 Isolation of low-ash solid fuel from coal - by solvent extraction in presence of carbon monoxide and steam

Country Status (1)

Country Link
FR (1) FR2267364A1 (en)

Also Published As

Publication number Publication date
FR2267364B1 (en) 1978-03-31

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Legal Events

Date Code Title Description
ST Notification of lapse