Apparatus and process for steam treating carbonaceous material

Details Apparatus and process for steam treating carbonaceous material Apparatus and process for steam treating carbonaceous material

1989-10-31

1991-12-10

Willis, Prince E.

Fuel and related compositions

Coal treating process or product thereof

Removal of undesirable

44620, C10L 900, C10L 908

Patent

active

050714473

ABSTRACT:
An apparatus and process of steam treating carbonaceous materials under a controlled temperature and pressure. The feed material is introduced into an autoclave or similar vessel and injected with steam at a high pressure and temperature for a controlled period of time to effect thermal restructuring of the carbonaceous material and to effect a conversion of the moisture and a portion of the volatile organic constituents therein to a gaseous phase. Water, wax and tar are recovered during this process and the water may be used as a source of pre-heating feed material in another vessel while the tar may be used as a heating source since it has a high heating value. The upgraded product is allowed to cool and then removed from the reaction vessel. The invention alternatively contemplates use of a separate pre-heating chamber for the carbonaceous feed material.

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