全馏分催化汽油选择性加氢脱硫装置的工艺设计

Process design of full range gasoline selective hydrodesulfurization unit

中海油惠州炼化分公司(下简称惠炼)新建的50万t/a催化汽油加氢脱硫装置,采用惠炼与北京海顺德钛催化剂有限公司(下简称海顺德)合作开发的全馏分催化汽油选择性加氢脱硫工艺(CDOS-FRCN)技术。该技术催化汽油馏分不需要切割,具有设备投资少、能耗低、脱硫选择性高及辛烷值损失小的特点。尤其适用于处理惠炼催化裂化汽油,在原料硫含量不大于450μg/g的情况下,能够生产硫含量不大于20μg/g的低硫汽油,而且辛烷值损失<1.5个单位。

The full range gasoline selective hydrodesulfurization technology （CDOS-FRCN） which is co-developed by Huizhou Refinery Co. CNOOC （Hereinafter referred to as：Huilian） and Beijing Haishunde Titanium Catalyst Co. （Hereinafter referred to as Haishunde）, is adopted by the new 50 Mt/a gasoline hydrodesulfurization unit. This technology does not need separation and has the characteristic of saving investment, reducing energy consumption, high desulphurization selectivity and small octane number loss. The technology is especially appropriate for processing Huilian catalytic gasoline. When sulfur contents is less than 450 μg/g in feedstock, the gasoline with sulfur content less than 20 μg/g and RON loss less than 1.5 can be obtained.