【摘要】 用于粗萘加氢精制的7719型（Mo-Co/γ-Al₂O₃）放大催化剂在上海焦化厂15升中型流动反应装置中试验成功。用焦炉气为氢源运转了3800小时,脱硫活性大于95%。使用后催化剂的表面除积炭外,还有金属氧化物沉积。经X-射线电子能谱鉴定为Fe₂O₃。大部份氧化铁沉积在反应器入口催化剂表面。催化剂活性组份主要负载于40-130（?）孔径范围内,而不是均匀分配。一经反应,催化剂中20—90（?）范围内的孔体积由于碳沉积而缩小,此后长时间无变化。更多还原

【Abstract】 The performance of 7719 catalyst（Mo·Co/γ-Al₂O₃）for hydrofining ofraw naphthalene in the pilot plant with a 15 l reactor in flow system issatisfactory.It runs for more than 3800 hr using coke oven gas as hydro-gen source with hydrodesulfurization activity more than 95%.Beside coke,it is found metal oxide deposited on the external surfaceof the catalyst in the inlet part of the reactor.This metal oxide is Fe₂O₃as determined by X-ray photoelectron spectroscopy.The active componentof the catalyst is found nonuniformly distributed on the pore with dia-meter in the range of 40-130（?）.The volume of pores with diameter ranging20—90（?）is reduced immediately after reaction because of coke depositionbut it doesn’t change afterwards.更多还原