润滑油基础油装置工艺流程优化及节能措施

中国石化济南分公司重质基础油光亮油生产工艺的“老三套”部分是在原糠醛精制、酮苯脱蜡和白土精制装置基础上扩建改造而来。由于原料性质及工艺流程的改变，各装置在开工初期均出现了流程不畅、操作不稳和能耗、物耗较高等问题。通过实施对糠醛装置空冷器流程及三效蒸发塔自压流程、酮苯装置换热流程、新鲜溶剂比的优化以及停加白土并实现酮苯脱蜡-白土装置热联合等技术改造，解决了上述问题，改造后直接经济效益达804. 27 万元/a。

PROCESS OPTIMIZATION AND ENERGY SAVING MEASURES OF LUBRICATING BASE OIL PRODUCTION UNITS

The new "three traditional technologies" units for production of bright stock were built through expansion and reconstruction of old processing units (furfural refining, ketone-benzene dewaxing and clay refining) of SINOPEC Jinan Company. The problems of operation instability, high energy and material consumptions were occurred due to changes of feedstock properties during the start-up. These problems were solved well by technical transformation and adjustment of air cooler process for furfural unit and self-pressure process for three-effect evaporation tower, optimization and adjustment of heat exchange scheme and fresh solvent ratio for ketone-benzene dewaxing unit, stopping clay addition and realizing heat integration of ketone benzene dewaxing unit and clay refining unit. The direct economic benefit of these measures is more than ￥8.042 7 millions/a.