These measures are effective not only in raising the acceptable rate of the naphthalene content in gas, but also in lowering the consumption and prolonging the life of washing oil.

• 生产实践表明,该工艺改进效果明显,不但可以提高城市煤气萘含量的合格率,而且还可降低柴油洗油的消耗、延长柴油洗油的使用周期。