为提高酮苯装置脱油蜡收率，大庆炼化公司于2004年对工艺进行了改进。
The technical modification of ketone-benzol unit to improve the deoiling yield in Daqing Refining and Chemical Company was carried out in 2004.
在茂名石化公司炼油厂重质（?） 苯脱腊装置上对进口ECA7433和SDA1615两种助滤剂进行了工业试验。
Commercial tests for the imported filter aids ECA7433 and SDA1615 were carried out in heavy lube oil benzol-ketone dewaxing unit in the refinery of Maoming Petrochemical Company.
技术改进后，酮苯脱蜡装置脱油蜡综合收率提高了1.47%。
The application results showed that after the transformation the yield of deoiling wax in 2004 increased by 1.47%.
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