Research Article
In Situ Catalytic Pyrolysis of Low-Rank Coal for the Conversion of Heavy Oils into Light Oils
Figure 1
A schematic figure of the experimental apparatus. () nitrogen cylinder, () flow controller, () electric ring furnace, () coal layer, () catalyst layer, () thermocouple, () condenser, (8) conical flask, (9) acetone traps, (10) silica gel, (11) gas collector, and (12) measuring cylinder.