JPS56145974A - Preparation of solvent-refined coal - Google Patents
Preparation of solvent-refined coalInfo
- Publication number
- JPS56145974A JPS56145974A JP4807980A JP4807980A JPS56145974A JP S56145974 A JPS56145974 A JP S56145974A JP 4807980 A JP4807980 A JP 4807980A JP 4807980 A JP4807980 A JP 4807980A JP S56145974 A JPS56145974 A JP S56145974A
- Authority
- JP
- Japan
- Prior art keywords
- solvent
- refined coal
- via line
- soln
- temp
- 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
Landscapes
- Solid Fuels And Fuel-Associated Substances (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
PURPOSE: To obtain solvent-refined coal of a high softening temp. from a dilute soln. at one step, by separating a solvent by flushing solvent-refined coal prepared by thermal cracking at a high hydrogen pressure in the solvent, and recycling a certain amt. of the solute to the soln. of the solvent-refined coal.
CONSTITUTION: A soln. of solvent-refined coal is introduced via line 1 to reservoir 2, in which it is held, and led via line 3 to pump 4, by which it is pressurized to a certain pressure, and then flushed via line 6 to evaporation column 7. A solvent is withdrawn via line 8 and solvent-refined coal via line 9. A cartain amt. of the solvent-refined coal is recycled from the column 7 to the reservoir 2 via line 10 and led to furnace 5. 30wt% or less soln. of the solvent-refined coal is subjected to the treatment. The flushing pressure is pref. 30W100mmHg. The temp. of the solvent- refined coal flushed into a flushing region should be 430°C or lower, and the lowermost temp. depends on desired softening temp. of the solvent-refined coal, concentration of the soln. of the solvent-refined coal and pressure in the flushing region.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4807980A JPS56145974A (en) | 1980-04-14 | 1980-04-14 | Preparation of solvent-refined coal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4807980A JPS56145974A (en) | 1980-04-14 | 1980-04-14 | Preparation of solvent-refined coal |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56145974A true JPS56145974A (en) | 1981-11-13 |
JPH021875B2 JPH021875B2 (en) | 1990-01-16 |
Family
ID=12793323
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4807980A Granted JPS56145974A (en) | 1980-04-14 | 1980-04-14 | Preparation of solvent-refined coal |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56145974A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013099650A1 (en) * | 2011-12-28 | 2013-07-04 | 株式会社神戸製鋼所 | Production method for ashless coal |
JP2013136695A (en) * | 2011-12-28 | 2013-07-11 | Kobe Steel Ltd | Production method for ashless coal |
JP2014185264A (en) * | 2013-03-25 | 2014-10-02 | Kobe Steel Ltd | Method for controlling softening and melting properties of ashless coal, and method for producing ashless coal |
-
1980
- 1980-04-14 JP JP4807980A patent/JPS56145974A/en active Granted
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013099650A1 (en) * | 2011-12-28 | 2013-07-04 | 株式会社神戸製鋼所 | Production method for ashless coal |
JP2013136695A (en) * | 2011-12-28 | 2013-07-11 | Kobe Steel Ltd | Production method for ashless coal |
CN103998585A (en) * | 2011-12-28 | 2014-08-20 | 株式会社神户制钢所 | Production method for ashless coal |
AU2012359437B2 (en) * | 2011-12-28 | 2015-06-25 | Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | Ash-free coal production method |
US9334457B2 (en) | 2011-12-28 | 2016-05-10 | Kobe Steel, Ltd. | Ash-free coal production method |
JP2014185264A (en) * | 2013-03-25 | 2014-10-02 | Kobe Steel Ltd | Method for controlling softening and melting properties of ashless coal, and method for producing ashless coal |
Also Published As
Publication number | Publication date |
---|---|
JPH021875B2 (en) | 1990-01-16 |
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