采用中国石油独山子石化分公司FCCU的蜡油及在用平衡催化剂,在提升管试验装置上考察了反应温度、剂油比对产品分布的影响,根据汽油、柴油收率情况,确定适宜生产汽油试验方案为反应温度490℃,剂油比7.0;柴油方案为反应温度460℃,剂油比5.0.在此条件下,对加氢蜡油、未加氢蜡油进行相同工况下的催化裂化试验考察,原料经过加氢后整体转化率提高约10百分点,汽油收率增加3～5百分点,液化石油气增加5～7百分点,柴油收率降低6～8百分点,重油收率降低1～3百分点,有利于降低柴汽比;产品性质方面,汽油、柴油硫含量降低明显,达到90％以上,汽油烯烃含量降低8 ～ 14百分点,异构烷烃含量增加约6百分点,芳烃含量增加1～4百分点,组成变化明显.%The impact of reaction temperature and catalyst to oil ratio on the product distribution was investigated in a riser FCC unit with the wax oil and catalysts in Dushanzi Petrochemical Co.,Ltd..Based upon the results of gasoline and diesel yields,appropriate gasoline production scheme is determined to be:reaction temperature:490 ℃ and oil to catalyst ratio:7.0.In the diesel production scheme:the reaction temperature is 460 ℃ and oil to catalyst ratio is 5.0.Under these conditions,the hydrotreated wax oil and un-hydrotreated wax oil are tested and studied.For the hydrotreated feedstock,the product yield was increased by about 10％,the gasoline yield is elevated by 3％ ～ 5％,LPG yield is increased by 5％ ～ 7％,diesel yield is lowered by 6％ ～8％,and heavy oil yield is reduced by 1％ ～3％.In product quality,the sulfur in gasoline and diesel is obviously reduced by over 90％,the olefin in gasoline is lowered by 8％ ～ 14％,the iso-alkane is increased to over about 6％,the aromatics is increased by 1％ ～ 4％,and composition change is obvious.
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