Treatment of coal
Abstract
Process for treating coal by feeding a first batch of raw coal to a first dryer to remove moisture contained in the raw coal to produce demoisturized coal; feeding the demoisturized coal to a devolatilizer to remove volatile material from the demoisturized coal to produce devolatilized coal; feeding a first portion of the devolatilized coal to a combustor to provide heat for the process; feeding a second portion of the devolatilized coal to a coater; feeding a second batch of raw coal to a slave dryer to produce a second batch of demoisturized coal; feeding the second batch of demoisturized coal to the coater where the second portion of devolatilized coal and the second batch of demoisturized coal are coated with volatile material produced in the devolatilizer, to produce a stabilized coal product; and collecting the stabilized coal product.
Claims
exact text as granted — not AI-modifiedWhat is claimed is:
1 . A process for treating coal comprising the steps of:
feeding a first batch of raw coal to a first dryer to remove moisture contained in the raw coal to produce a first demoisturized coal; feeding the first demoisturized coal to a devolatilizer to remove volatile material from the first demoisturized coal to produce a devolatilized coal; feeding a first portion of the devolatilized coal to a combustor to provide heat for the process; feeding a second portion of the devolatilized coal to a coater; feeding a second batch of raw coal to a slave dryer to produce a second demoisturized coal; feeding the second demoisturized coal to said coater where the second portion of the devolatilized coal and the second demoisturized coal are coated with volatile material produced in the devolatilizer, to produce a stabilized coal product; and collecting the stabilized coal product.
2 . The process according to claim 1 wherein the volatile material is applied to the second portion of the devolatilized coal and the second demoisturized coal by immersion in condensed volatile material.
3 . The process according to claim 1 wherein the volatile material is applied to the second portion of the devolatilized coal and the second demoisturized coal by condensing vapor of volatile material on the surface of the coal.
4 . Treated coal produced according to the process of claim 1 .
5 . Treated coal according to claim 4 , provided with a waterproof binder/igniter/coating.
6 . Treated coal according to claim 4 in the form of briquettes.
7 . Briquettes according to claim 6 provided with a water-proof binder/igniter/coating.Join the waitlist — get patent alerts
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