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针对润滑油精制装置中糠醛的腐蚀及生焦机理，在流程的适当位置注入ＫＱ－１缓蚀剂，可以破坏糠酸、糠醛和水的三元共沸，阻止糠酸从糠醛回收塔顶返回装置，使全装置系统的腐蚀和生焦减少，开工周期延长１～２倍。
In view of the corrosion and coke formation mechanism of furfural in lubricating oil refining device, KQ-1 inhibitor can be infiltrated at proper position in the process to destroy the ternary azeotropic mixture of furoic acid, furfural and water and prevent the furoic acid from returning from the top of furfural recovery column Device, so that the whole system of corrosion and reduce raw coke, start the cycle to extend 1 to 2 times.