为了配合页岩油催化裂化研究,测定了经不同油样裂化后的白土的表面性质。这些废白土上可能沉积较多非烃化合物,故与天然油裂化废白土有所不同。如表1所示在各种废白土之间,炭含量、表面积与孔径的差别均不大。但对吡啶化学吸附量,无论在300°或400°时,则均有显著差别。凡是含有具有毒性之(?)碱或吡咯类氮化合物之油料反应后的白土, In order to cooperate with shale oil catalytic cracking research, the surface properties of clay after cracking with different oil samples were determined. These waste white clay may deposit more non-hydrocarbon compounds, so it is different from natural oil cracking waste clay. As shown in Table 1 between the various waste white clay, carbon content, surface area and pore size difference is not large. However, the amount of pyridine chemisorption, both at 300 ° or 400 °, were significantly different. Any clay that contains an oil of toxic (?) Base or pyrrole-type nitrogen compounds,