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 steamInfo
- 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
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.
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) |
-
1974
- 1974-04-11 FR FR7412712A patent/FR2267364A1/en active Granted
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 |