1.So some renovations should be made,for example,increasing the solvent ratio of propane deasphalting;using hydrofinishing instead of clay treating;mo...
增加丙烷脱沥青的溶剂比,用加氢补充代替白土等,此外,含硫原生产时,对原也应适当择。
2.The role and application of hydrofinishing to lube oil processing were described. Having Compared with clay refining, the trend of development of lube oil hydrorefining technology was given.