COLIQUEFACTION OF COAL WITH BITUMINOUS MATERIAL USING ACID-TYPE IRON OXIDE CATALYST

摘要

PURPOSE:To obtain the low-boiling compounds from coal and bituminous material in high efficiency and to improve the effective use of the H2 gas to be consumed, by cracking the high-boiling compounds such as preasphaltene in the coal and bituminous materials using an acid-type iron oxide catalyst. CONSTITUTION:A raw material comprising (A) 100 pts.wt. of coal and (B) 100-2,000 (pref. 150-1,000) pts.wt. of bituminous materials is reacted, using an acid-type iron oxide catalyst, at 350 - 527 (pref. 400 - 450) deg.C under a hydrogen pressure of 10 -30 (pref. 15 - 30) MPa for 30 - 90 (pref. 40 - 60) min to carry out a coliquefaction. The above-mentioned catalyst can be prepared by the following process: urea is mixed with ferric sulfate and the mixture is dissolved in water followed by heating, and the resultant precipitate is washed with water and dried, and then calcined at 350 - 750 (pref. 400 - 500) deg.C.