JPS57119989A - Dehydrating method for water-containing coal - Google Patents
Dehydrating method for water-containing coalInfo
- Publication number
- JPS57119989A JPS57119989A JP590881A JP590881A JPS57119989A JP S57119989 A JPS57119989 A JP S57119989A JP 590881 A JP590881 A JP 590881A JP 590881 A JP590881 A JP 590881A JP S57119989 A JPS57119989 A JP S57119989A
- Authority
- JP
- Japan
- Prior art keywords
- slurry
- water
- coal
- solvent
- pressure
- 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
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
PURPOSE: To dehydrate water-containing coal at a low temperature under a low pressure in a short time, by heating solvent slurry of the water-containing coal to a specific temperature or lower under a pressure, cooling it to a specific temperature or lower and subsequently introducing it into a separating device under a specific pressure or lower.
CONSTITUTION: Water-containing coal and a solvent are mixed to be slurried on a grinder 1, and the slurry is pressurzed by a pump 7 before heated to 150W 350°C by a preheater 2. Water contained in coal is readly dispersed into the solvent, and coal itself becomes lipophilic, so that the coal hardly absorbs water. Subsequently, the slurry is cooled to 200°C or lower by running it through a heat exchanger 3 or without doing so, and then the slurry is separated into one solvent flow containing a large amount of water and the other solvent flow that has been dehydrated and contains coal. The former slurry is sent to a water layer-separating tank 5, in which the slurry is left to stand under a pressure higher than the saturated vapor-pressure of water to separate the water layer and the solvent layer. The latter slurry is introduced into a gas-liquid separator 6, in which the remaining moisture in the slurry is evaporated by the heat energy of this flow, thereby producing much less moisture-containing slurry. This slurry is used as a fuel or as a raw material for coal liquefaction.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP590881A JPS57119989A (en) | 1981-01-20 | 1981-01-20 | Dehydrating method for water-containing coal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP590881A JPS57119989A (en) | 1981-01-20 | 1981-01-20 | Dehydrating method for water-containing coal |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57119989A true JPS57119989A (en) | 1982-07-26 |
Family
ID=11623991
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP590881A Pending JPS57119989A (en) | 1981-01-20 | 1981-01-20 | Dehydrating method for water-containing coal |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57119989A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006319595A (en) * | 2005-05-12 | 2006-11-24 | Audio Technica Corp | Method of manufacturing ribbon microphone |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5616588A (en) * | 1979-07-20 | 1981-02-17 | Mitsui Mining Co Ltd | Preparation of mixed composition of dehydrated brown coal and hydrocarbon oil |
JPS5616589A (en) * | 1979-07-20 | 1981-02-17 | Mitsui Mining Co Ltd | Treatment of water-containing coal |
-
1981
- 1981-01-20 JP JP590881A patent/JPS57119989A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5616588A (en) * | 1979-07-20 | 1981-02-17 | Mitsui Mining Co Ltd | Preparation of mixed composition of dehydrated brown coal and hydrocarbon oil |
JPS5616589A (en) * | 1979-07-20 | 1981-02-17 | Mitsui Mining Co Ltd | Treatment of water-containing coal |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006319595A (en) * | 2005-05-12 | 2006-11-24 | Audio Technica Corp | Method of manufacturing ribbon microphone |
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