Commercial Application of the ICR Series Lube Isodewaxing Catalysts

This article illustrates the application of the ICR series lube oil isodewaxing catalysts in commercial scale and proposes the strategy on long cycle operation and optimization of catalysts. The results of commercial application of the catalyst have revealed that the catalyst after pretreatment including drying, sulfidation and reduction can process VGO into base oils meeting the HVI II and HVI II＋ standards, and can manufacture base oils meeting the HVI III standard after incorporating the filtrate oil or gatch from acetone-benzene solvent dewaxing unit. The nitrogen content of the feed oil to the IDW reactor should be controlled at 1 .0-1.5 ppm, while the CO and CO2 contents in fresh hydrogen is strictly controlled to avoid poisoning of the IDW-HDF catalysts.