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

C - Chemistry, Metallurgy

10

L

C10L 9/00 (2006.01) C10L 9/10 (2006.01) F26B 9/06 (2006.01)

Patent

CA 2071921

An apparatus and process of steam treating carbon- aceous materials under a controlled temperature and pres- sure. 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 ma- terial in another vessel while the tar may be used as a heat- ing source since it has a high heating value. The upgraded product is allowed to cool and then removed from tile reac- tion vessel. The invention alternatively contemplates use of a separate pre-heating chamber for the carbonaceous feed material.

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