Table 5. Viscosity of Catalytic Aquathermolysis with Different Amounts of Catalyst (Reaction Conditions: 340 °C, 2 h, Oil–Water Ratio 10:3, Sodium Oleate: 0.5 wt %, n-Butanol: 0.5 wt %).

amount of catalyst/wt %	viscosity/mPa·s (100 °C)
3	1589
2	2006
1	2077
0.5	2354
0	3109