Patent ID: 6319725
Filing Date: 2001-11-20
Classification: G01R,Y10T

Abstract:
<10 5 38.9 15 6 49 7 7 54-56 <10 OCH.sub.3 8 62.5 <10 9 72-75 <10 R--OH 10 80 9 C--O 11 84 7 12 89 4 13 100 <10 Ar--H 14 105 5 15 114-116 <13 16 124 <12 17 131 12 Ar--C 18 140-141 <12 19 145-146 <12 Ar--O 20 150-153 <14 21 160 <14 22 175 15 COOH 23 180 15 24 200 15 C.dbd.Osaid 9 groups consisting of carbonyl group (C.dbd.O), carboxyl group (COOH), aromatic carbon bonded to an oxygen atom (Ar--O), aromatic carbon bonded to a carbon atom (Ar--C), aromatic carbon bonded to a hydrogen atom (Ar--H), aliphatic carbon bonded to a hydroxyl group or an etheric oxygen (R--OH or C--O), methoxyl group (OCH.sub.3), methylene group (CH.sub.2) and methyl group (CH.sub.3);(c) determining distribution of carbons of the CH.sub.3, CH.sub.2, C.dbd.O, COOH, Ar--O and OCH.sub.3 in terms of wt. %, and aromaticity fa from the peak intensity of the spectral data obtained in step (b); and(d) calculating an estimated yield of at least one liquefaction product of the coal or its selected from the group consisting of hydrocarbon gas, COx gas, water, oil and residues according to the following equations:Hydrocarbon Gas (wt. %)=0.33.times.(C.sub.CH2 +C.sub.CH3)+6.15CO.times.Gas (wt. %)=1.43.times.(C.sub.C.dbd.O +C.sub.COOH)-1.45Water (wt. %)=2.03.times.(C.sub.Ar--O -C.sub.OCH3)-10.84Oil (wt. %)=0.86.times.C.sub.CH2 +27.5Residues (wt. %)=122.0.times.fa-