China Petrochemical’s next-generation green intelligent aromatics technology achieves international leading status
- Consortium including China Petrochemical, Petrochemical Research Institute and Jiujiang Petrochemical developed the new generation green intelligent aromatics technology.
- Key chemical components: new p‑xylene adsorbent and an ethylbenzene‑to‑xylene isomerization catalyst integrated with a simulated moving bed single‑tower adsorption separation process.
- Process innovations include distillation inter‑heat energy integration, steam boosting, process coupling, special internals and an intelligent control system.
- Deployed on Jiujiang Petrochemical's 890,000 t/y aromatics unit, achieving >50% higher low‑temperature heat reuse, 27% lower energy consumption per unit, and 25 authorized invention patents.
Project validation
On April 14 the China Petrochemical new‑generation green intelligent aromatics complete technology project, jointly developed by Engineering Construction Company, Petrochemical Research Institute, Jiujiang Petrochemical and other units, passed identification by the China Petroleum and Chemical Industry Federation.
Technology innovations
The solution comprises a new p‑xylene adsorbent and an ethylbenzene‑conversion xylene isomerization catalyst, a simulated moving bed single‑tower adsorption separation process, specialized internals, an intelligent control system, and distillation‑tower inter‑heat energy integration with steam boosting and process coupling.
Industrial application
The technology is applied to Jiujiang Petrochemical’s 890,000 t/y aromatics unit.
Performance and IP
Reported results include >50% higher low‑temperature heat utilization and a 27% reduction in comprehensive energy consumption per unit product; 25 invention patents have been authorized by the National Intellectual Property Bureau.
Source: Sinopec