环烷基减二线馏分油生产环烷基橡胶增塑剂N4006的工艺研究  

Study on Process of Producing Naphthenic Rubber Plasticizer N4006 from Naphthenic Second Vacuum Side-stream Oil

作　　者：许海龙 宋君辉 焦祖凯 张翠侦 XU Haiong;SONG Junhui;JIAO Zukai;ZHANG Cuizhen(CNOOC Institute of Chemicals and Advanced Materials,Qingdao 266500,China)

机构地区：[1]中海油化工与新材料科学研究院,山东青岛266500

出　　处：《橡胶工业》2023年第11期887-892,共6页China Rubber Industry

摘　　要：以环烷基减二线馏分油为原料,采用自制及市售催化剂,通过加氢处理-临氢降凝-补充精制3段高压加氢工艺,制备满足HG/T 5085—2016指标要求的环烷基橡胶增塑剂N4006(简称N4006)并对各催化剂加氢性能进行对比。结果表明:采用自制加氢处理-临氢降凝催化剂ZQC-LC,通过高压加氢工艺,可以得到硫含量和氮含量满足贵金属补充精制进料要求且倾点较低、芳烃含量较小的2段加氢生成油;以2段加氢生成油为原料,分别采用市售贵金属催化剂A和B,通过高压加氢工艺,均可以得到各项关键性能达到HG/T 5085—2016要求的N4006,但采用贵金属催化剂B时,目标产品的收率更高;以2段加氢生成油为原料,采用自制非贵金属催化剂R难以制备出光、热稳定性合格的N4006;以2段加氢生成油为原料,采用非贵金属催化剂R-贵金属催化剂B,通过高压加氢工艺,在较高贵金属补充精制空速(2.5 h^(-1))下可以得到各项关键性能均达到HG/T 5085—2016要求的N4006,且该工艺催化剂成本较低。Taking the naphthenic second vacuum side-stream oil as raw material,using self-made and commercially available catalysts,through hydrotreating-hydrodewaxing-supplementary refining three stage high pressure hydrotreating process,naphthenic rubber plasticizer N4006(referred to as N4006)was prepared to meet the requirements of HG/T 5085—2016,meanwhile compared the hydrogenating properties of the catalysts.The results showed that second stage hydrotreation oil with sulfur and nitrogen content meeting the requirements of precious metal supplementary refining feed and low pour point and small aromatic content could be obtained through high pressure hydrotreating process using self-made hydrotreating-hydrodewaxing catalyst ZQC-LC.N4006 products with key performance meeting the requirements of HG/T 5085—2016 could be obtained by using the second stage hydrogenation oil as raw material and using commercial precious metal catalyst A and B respectively through high-pressure hydrogenating process,however,the yield of the target product was higher when precious metal catalyst B was used.It was difficult to prepare N4006 with qualified light and thermal stability using the second stage hydrogenation oil as raw material and using self-made non-precious metal catalyst R.N4006,which could meet key performance requirements of HG/T 5085—2016,could be obtained by using the secondary hydrogenation oil as raw material and using non-precious metal catalyst R-precious metal catalyst B through high pressure hydrogenating process at high space rate(2.5 h^(-1))of precious metal supplementary refining,and the catalyst cost of this process was lower.

关 键 词：橡胶增塑剂 环烷基减二线馏分油 加氢处理 临氢降凝 补充精制 

分 类 号：TQ330.384[化学工程—橡胶工业]