| 摘要 |
<p>A coal hydrogenation process comprises adding hot hydrogen to the coal in an H/C ratio of 0.05-4, reacting at 400-2000 (pref. 500-1500) degrees C and 500-5000 (pref. 600-3000) psig quenching the reaction effluent with H2 at 200 dgrees C, the total residence time being from 2 millisecs. to 2 secs. Pref. the coal is crushed to 1/2 inch av. particle size. The effluent is processed to separate liq. hydrocarbon from coal char and other solids and both the liq. hydrocarbon and the coal char may be further processed. Because of the brief residence time, less gas is produced and polymerisation of the liq. products is minimised. Catalyst is not required, the process is simple and yields of desired prodts. are high.</p> |
