Process for treating agglomerating coal by removing volatile components
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United States of America Patent
Stats
-
Feb 5, 2013
Grant Date -
Jan 20, 2011
app pub date -
Sep 10, 2009
filing date -
Jul 14, 2009
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A process for treating agglomerating coal includes providing dried, pulverized, agglomerating coal, and treating the coal in a vessel with a gas stream having an oxygen content sufficient to form at least some oxides on surface of coal particles, wherein the oxides are sufficient to convert coal into substantially non-agglomerating coal. The treated coal is transferred into a pyrolyzing chamber and passed into contact with an oxygen deficient sweep gas, the sweep gas being at a higher temperature than the temperature of the coal so that heat is supplied to the coal. The process further includes providing additional heat to coal indirectly by heating the chamber, wherein the heating of coal by the sweep gas and by the indirect heating from the chamber causes condensable volatile components to be released into the sweep gas. The sweep gas is removed from the chamber and treated to remove condensable components of coal.
First Claim
Other Claims data not available
