加工劣质石脑油的加氢精制催化剂失活原因分析

通过对原料中硅含量的跟踪分析和对工业装置卸出中毒催化剂的表征研究，找出胜利炼油厂石脑油加氢精制催化剂失活的原因，是由于焦化汽油和减粘汽油中的硅在加氢过程中沉积到催化剂的孔道中，降低了催化剂的比表面积和孔体积，堵塞催化剂孔道造成的。在实验室100mL小型加氢装置上进一步验证了这一结论。

DEACTIVATION ANALYSIS OF HYDROFINING CATALYST PROCESSING INFERIOR NAPHTHA

Through analysis of silicon content in naphtha feedstock and characterization of the deactivated catalyst, it was found that the deactivation of the hydrofining catalyst in Shengli Refinery was caused by the silicon in coker naphtha and visbreaking naphtha deposited on the catalyst. The silicon blocked the catalyst pore channels and reduced the surface area and pore volume of the catalyst. The re-sult was further verified on a 100ml laboratory unit.