| Study on Process of Producing Naphthenic Rubber Plasticizer N4006 from Naphthenic Second Vacuum Side-stream Oil |
| Received:June 21, 2022 Revised:June 21, 2022 |
| DOI：10.12136/j.issn.1000-890X.2023.11.0887 |
| Key Words: rubber plasticizer；naphthenic second vacuum side-stream oil；hydrotreating；hydrodewaxing；supplementary refining |
| Author Name | Affiliation | E-mail | | XU Hailong | CNOOC Institute of Chemicals and Advanced Materials | xuhl20@cnooc. com. cn | | SONG Junhui | CNOOC Institute of Chemicals and Advanced Materials | | | JIAO Zukai | CNOOC Institute of Chemicals and Advanced Materials | | | ZHANG Cuizhen | CNOOC Institute of Chemicals and Advanced Materials | |
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| Abstract: |
| 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. |
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