The problem of low efficiency of dephenolization by scrubbing the tri-mixed fractions (phenol, naphthalene and wash oil) produced from coal tar processing was analyzed and solved.

• 对焦油加工系统生产过程中的中间产品酚、萘、洗三混馏分洗涤脱酚质量差的问题进行了分析、解决。