JPS56887A - Reforming of coal by pretreatment - Google Patents
Reforming of coal by pretreatmentInfo
- Publication number
- JPS56887A JPS56887A JP7631579A JP7631579A JPS56887A JP S56887 A JPS56887 A JP S56887A JP 7631579 A JP7631579 A JP 7631579A JP 7631579 A JP7631579 A JP 7631579A JP S56887 A JPS56887 A JP S56887A
- Authority
- JP
- Japan
- Prior art keywords
- coal
- heavy oil
- oil
- low
- grade
- 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.)
- Pending
Links
Landscapes
- Coke Industry (AREA)
Abstract
PURPOSE: To reform coal so that the reformed coal can be used as a raw coal for the production of coke for metallurgy, by a method wherein a low-grade coal (e.g. weathered coal, non-caking coal) having little fluidity is wetted with a coal heavy oil and then treated with a petroleum heavy oil.
CONSTITUTION: About 2W50wt% (based on the weight of a low-grade coal) of a coal heavy oil (e.g. creosote oil, anthracene oil, coaltar) is added to a low-grade coal. The mixt. is heated at a temp. ranging from not lower than a m.p. of the coal heavy oil to not higher than 450°C to mix the coal with the oil and to wet the surface of the low-grade coal with the coal heavy oil having wettability. Then 5W 50wt% of a petroleum heavy oil (e.g. straight asphalt, solvent deasphalted asphalt is added to the mixt. The resulting mixt. is heated at a temp. ranging from not lower than a m.p. of the petroleum heavy oil to not higher than 450°C to mix the petroleum heavy oil with the coal and to treat the coal with the petroleum heavy oil. When the resulting wetted coal, after the above treatment is heat-treated at a temp. of 300W450°C for 10W120min, more excellent reformed coal can be obtained.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7631579A JPS56887A (en) | 1979-06-19 | 1979-06-19 | Reforming of coal by pretreatment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7631579A JPS56887A (en) | 1979-06-19 | 1979-06-19 | Reforming of coal by pretreatment |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56887A true JPS56887A (en) | 1981-01-07 |
Family
ID=13601934
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7631579A Pending JPS56887A (en) | 1979-06-19 | 1979-06-19 | Reforming of coal by pretreatment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56887A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4541944A (en) * | 1983-04-14 | 1985-09-17 | Interox Chemicals Limited | Compositions and processes employing activators for the generation of peroxyacids |
-
1979
- 1979-06-19 JP JP7631579A patent/JPS56887A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4541944A (en) * | 1983-04-14 | 1985-09-17 | Interox Chemicals Limited | Compositions and processes employing activators for the generation of peroxyacids |
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