发明名称 |
Verfahren zur Entmineralisierung von Kohle |
摘要 |
<p>A process for demineralizing coal includes the steps of forming a slurry of coal particles in an alkali solution, the slurry containing 10-30% by weight coal, maintaining the slurry at a temperature of 150-250° C. under a pressure sufficient to prevent boiling, separating the slurry into an alkalized coal and a spent alkali leachant, forming an acidified slurry of the alkalized coal, the acidified slurry having a pH of 0.5-1.5, separating the acidified slurry into a coal- containing fraction and a substantially liquid fraction, subjecting the coal-containing fraction to a washing step, particularly a hydrothermal washing step, in which the coal-containing fraction is mixed with water and a polar organic solvent or water and an organic acid to form a mixture and separating the coal from the mixture. The demineralized coal has an ash content of from 0.01-0.2% by weight and can be used a feed to a gas turbine.</p> |
申请公布号 |
DE10393609(T5) |
申请公布日期 |
2005.09.29 |
申请号 |
DE2003193609T |
申请日期 |
2003.10.23 |
申请人 |
UCC ENERGY PTY LTD., NORTH SYDNEY |
发明人 |
BROOKS, PAUL;WAUGH, ALAN BRUCE;CLARK, KEITH NORMAN;WEIR, STEPHEN BRIAN |
分类号 |
C10L1/32;C10L9/02;C10L9/08;(IPC1-7):C10L9/02 |
主分类号 |
C10L1/32 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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