C9石油树脂预加氢工艺研究  

Study on Pre-hydrogenation Process of C Petroleum Resin

作　　者：于星玉 陈小斌 范立业 张笑剑 柴萍萍 罗继庆 Yu Xingyu;Chen Xiaobin;Fang Liye;Zhang Xiaojian;Chai Pingping;Luo Jiqing(Shandong Qilong Co.,Ltd.,Zibo Shandong 255411;Fushun Xinrui Catalyst Co.,Ltd.,Fushun Liaoning 113121)

机构地区：[1]山东齐隆股份有限公司,山东淄博255411 [2]抚顺新瑞催化剂有限公司,辽宁抚顺113121

出　　处：《中外能源》2021年第7期74-78,共5页Sino-Global Energy

摘　　要：C9石油树脂中含有较高含量的硫、氮、氯、氟等杂原子和较多的不饱和键,这些杂原子对钯系或镍系催化剂的毒害较大,因此为保证加氢装置的长周期运转,需对C9石油树脂原料进行预加氢处理。通过使用DFR-1树脂预加氢专用催化剂做工艺筛查,发现反应温度对产物中的硫含量影响最大;反应压力对芳烃饱和率、软化点作用明显,氢油体积比对预精制树脂指标影响较小;体积空速对考察指标均有明显影响。在反应温度270℃、系统压力15.0MPa、氢油体积比800、体积空速0.6h^(-1)的工艺条件下,对两种型号石油树脂进行预加氢处理,能够得到硫、氯、氮含量均在3μg/g以下,芳烃饱和率为30%35%,色号<1号的预加氢树脂,收率为98%左右,软化点仅下降510℃,该产品可作为二段加氢原料生产高端氢化树脂或作为中端浅色树脂产品。C9 petroleum resin contains high content of sulfur,nitrogen,chlorine,fluorine and other heteroatoms,which are toxic to palladium or nickel catalysts,and more unsaturated bonds.Therefore,in order to ensure the long-term operation of hydrogenation unit,it is necessary to carry out the pre-hydrogenation of C9 petroleum resin raw materials.In this study,the special catalyst for DFR-1 resin pre-hydrogenation was used for process screening.It was found that reaction temperature had the greatest influence on the sulfur content of product.The effect of reaction pressure on aromatics saturation rate and softening point was obvious,the effect of hydrogen-oil volume ratio on the indexes of pre-hydrogenated resin was small,and the volume space velocity had a significant effect on the indexes examined.When the reaction temperature is 270 ℃,system pressure is 15.0 MPa,hydrogen-oil volume ratio is 800 and volume space velocity is 0.6 h^(-1),the pre-hydrogenated resin with sulfur,chlorine and nitrogen contents below 3μg/g,aromatic hydrocarbon saturation rate of 30%-35% and color number <1 can be obtained through the pre-hydrogenation of two types of petroleum resins.The yield is about 98% and the softening point is only reduced by 5-10℃.The product can be used as the secondary hydrogenation raw material to produce high-end hydrogenated resin or as a middle-end light color resin product.

关 键 词：C9石油树脂 预加氢 脱除杂原子 

分 类 号：TQ326.82[化学工程—合成树脂塑料工业]