liquefaction pathways of bituminous subbituminous coals andtheir
liquefaction pathways of bituminous subbituminous coals andtheir liquefaction pathways of bituminous subbituminous coals andtheir
% x 4 e retenlion Urn (minutes) Figure 1. Typical GC/FPD chromatogram of SAF-3 fraction from a low-sulfur Alabama coal (A) and a high-sulfur Illinois coal (B). f f Figure 2 Distniution of n-paraftins obtained from batch pplysh three different ranks of coal at 450'C (0) and W0C ( I ). 660
1- 700'C Figure 3. GClFID chromatogram of organic compounds produced from stepwise flash pyrolysis of three different ranks of coal. 2 0 10 retention time 20 (minutes) 30 40 (2-18440 (LigA: PYR S 0.01%; ORG S 0.43%) Bb PYR S 0.73%; ORG S 1.36%) C-18848 (mvb: PYR S 0.04%; ORG S 0.50%) Figure 4. GQFF'D chromatogram of volatile sulfur compounds produced from flash pyrolysis of three different ranks of coal at 600°C. 661
- Page 135 and 136: An NMR Investigation of the Effd of
- Page 137 and 138: for determining the area of the pea
- Page 139 and 140: of the ronl roniponcnte nnd (2) the
- Page 141 and 142: 2w 180 160 9 140 120 P loo f 80 P O
- Page 143 and 144: 25 I 20 ' + 0 Drying lime, hours Fi
- Page 145 and 146: substructure have been identified a
- Page 147 and 148: Pyridine extraction showed that 60
- Page 149 and 150: Figure 1. Reflected white-light pho
- Page 151 and 152: Table 3. Pyridine Extraction Sample
- Page 153 and 154: A bang-bang control strategy was us
- Page 155 and 156: increased from 120°C to 135”C, r
- Page 157 and 158: * wt% based on the amount of naphth
- Page 159 and 160: Use of Biocatalysts for the Solubil
- Page 161 and 162: Results Enzyme Modification with Di
- Page 163 and 164: Conclusions Reducing enzymes can be
- Page 165 and 166: Dynamics of the Extract Molecular-W
- Page 167 and 168: where yi = (x-xi !/pi. The zero mom
- Page 169 and 170: satisfactory agreement between theo
- Page 171 and 172: 0.8 0.6 0.4 0.2 “E \ bo Y, - 1 0
- Page 173 and 174: The Use of Solid State C-13 NMR Spe
- Page 175 and 176: differences lie in the fact that th
- Page 177 and 178: I- z W 0 K W n PROTONATED AROMATIC
- Page 179 and 180: ZAP WIO SIDE CHAINS IN PYRIDINE EXT
- Page 181 and 182: ORGAFlIC VOLATILE MATER AND ITS SUL
- Page 183 and 184: (Figure 1). They indicated that the
- Page 185: Table 3. Elemental analysis of arom
% x 4 e<br />
retenlion Urn (minutes)<br />
Figure 1. Typical GC/FPD chromatogram <strong>of</strong> SAF-3 fraction from a<br />
low-sulfur Alabama coal (A) and a high-sulfur Illinois coal (B).<br />
f f<br />
Figure 2 Distniution <strong>of</strong> n-paraftins obtained from batch pplysh<br />
three different ranks <strong>of</strong> coal at 450'C (0) and W0C ( I ).<br />
660
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