After treated with citric acid,the acidity amount of CY decreased compared to HY,while the acidity amount of CY-CTS increased compared to HY-CTS,then the hydrodenitrogenation(HDN) performance of NiW/CY-CTS improved remarkablely.

• 对HY分子筛进行酸预处理后,HY分子筛的酸量下降,但CY-CTS复合载体的酸性增加,表现为催化剂的加氢脱氮性能显著提高。