... point depressant, decolorization deodorant, liquidoid catalyst and such oil refining catalyst and auxiliaries, which can remarkably enhance oil's quality ... market. D. Acidic raw oil refining agent, alkaline raw oil refining agent, one-phase, two-phase raw oil refining agent, anti-oxidant developed by yongle bloc ... , clear, and clean and no longer become black after refining. Catalyst reactor for oil ...