JPS56136882A - Preparation of char as raw material for metallurgical coke - Google Patents
Preparation of char as raw material for metallurgical cokeInfo
- Publication number
- JPS56136882A JPS56136882A JP4037480A JP4037480A JPS56136882A JP S56136882 A JPS56136882 A JP S56136882A JP 4037480 A JP4037480 A JP 4037480A JP 4037480 A JP4037480 A JP 4037480A JP S56136882 A JPS56136882 A JP S56136882A
- Authority
- JP
- Japan
- Prior art keywords
- heating rate
- coke
- char
- raw material
- coal
- 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
Abstract
PURPOSE: To obtain good char capable of giving coke having a high strength and activity even on using as a raw material for molded coke in large quantities, by heat-treating a highly volatile noncoking coal under specific conditions.
CONSTITUTION: A highly volatile non-coking coal pulverized to a grain size, 80% or more of which passes through a -3mm screen, is heated from room temperature to 250W350°C, dried and preheated. The coal is then heated to 600°C or below at a heating rate ≤15°C/min slowly and decomposed thermally to give a char, which is then cooled to room temperature to 50°C. The drying and preheating treatment provides uniform slow dry distillation treatment, and the thermal decomposition at 600°C or below permits the residual volatile contents to remain a little and prevents the deterioration of an AP index. The excessive heating rate deteriorates the coke strength, and the heating rate is preferably 2W8°C/min.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4037480A JPS56136882A (en) | 1980-03-31 | 1980-03-31 | Preparation of char as raw material for metallurgical coke |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4037480A JPS56136882A (en) | 1980-03-31 | 1980-03-31 | Preparation of char as raw material for metallurgical coke |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56136882A true JPS56136882A (en) | 1981-10-26 |
Family
ID=12578869
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4037480A Pending JPS56136882A (en) | 1980-03-31 | 1980-03-31 | Preparation of char as raw material for metallurgical coke |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56136882A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02117991A (en) * | 1988-10-27 | 1990-05-02 | Mitsubishi Kasei Corp | Production of coke |
-
1980
- 1980-03-31 JP JP4037480A patent/JPS56136882A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02117991A (en) * | 1988-10-27 | 1990-05-02 | Mitsubishi Kasei Corp | Production of coke |
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