- 专利标题: Catalytic pyrolysis of polystyrene into aromatic rich liquid product using spherical catalyst
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申请号: US17481050申请日: 2021-09-21
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公开(公告)号: US11613623B2公开(公告)日: 2023-03-28
- 发明人: Bineesh Vijayan Kanattukara , Gurmeet Singh , Dheer Singh , Gurpreet Singh Kapur , Sankara Sri Venkata Ramakumar
- 申请人: INDIAN OIL CORPORATION LIMITED
- 申请人地址: IN Maharashtra
- 专利权人: INDIAN OIL CORPORATION LIMITED
- 当前专利权人: INDIAN OIL CORPORATION LIMITED
- 当前专利权人地址: IN Maharashtra
- 代理机构: Maschoff Brennan
- 优先权: IN202021040819 20200921
- 主分类号: C08J11/16
- IPC分类号: C08J11/16 ; B01J8/02 ; B01J21/00 ; B01J35/08 ; C07C4/22 ; B01J8/04 ; B01J8/06 ; B01J21/04 ; B01J21/10 ; B01J21/16 ; B01J21/20 ; B01J23/72 ; B01J23/745 ; B01J23/94 ; B01J29/40 ; B01J29/90
摘要:
The present invention provides a process of catalytic depolymerization of polystyrene involving a spherical catalyst, an apparatus for carrying out the depolymerization, recovering the aromatic rich liquid product and recycling the catalyst without any decrease in the catalytic performance. Further, the present invention provides that the aromatic rich liquid product includes styrene, xylene, benzene, ethyl benzene, with styrene content greater than 65%. Additionally, the catalyst involved in the depolymerization process is a spherical catalyst that is easily recovered from coke/char formed during the process and is recycled and reused without any decrease in the catalytic performance.
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