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公开(公告)号：EP4457274A1
公开(公告)日：2024-11-06
申请号：EP22844503.7
申请日：2022-12-27
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公开(公告)号：EP4408914A1
公开(公告)日：2024-08-07
申请号：EP22797307.0
申请日：2022-09-26
发明人： TOJO, Makoto , KAKIZAKI, Jun , DUBOIS, Jean-Luc
CPC分类号： C08J2333/1220130101 , C08J2325/0620130101 , C08J2300/3020130101 , C07C67/00 , C08J11/12 , Y02W30/62
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3.发明公开
公开(公告)号：EP4339185A1
公开(公告)日：2024-03-20
申请号：EP22306362.9
申请日：2022-09-16
IPC分类号： C07C67/333 , C07C67/54 , C07C69/54
摘要： The production method comprises the steps of:
- pyrolyzing the feed material in a pyrolysis reactor (4) so as to generate a gas stream, the feed material travelling from an inlet of the pyrolysis reactor (4) to an outlet of the pyrolysis reactor (4) with being subjected to heat such as to generate the gas stream at the outlet of the pyrolysis reactor (4); and
- condensing the monomer contained in the gas stream in a condenser (6) such as to obtain liquid monomer;
the production method further comprising feeding the pyrolysis reactor (4) with solid and/or liquid impurities separated from the gas stream generated in the depolymerization installation (2) and/or a gas stream generated in another depolymerization installation and/or with a syrup containing the polymer and/or the monomer and/or oligomers of the monomer.-
公开(公告)号：EP4296302A1
公开(公告)日：2023-12-27
申请号：EP22305924.7
申请日：2022-06-24
发明人： DUBOIS, Jean-Luc , HEESINK, Bert , VERBEEK, Erik , KONING, Bert , VAN DER HEIJDEN, Simon , TOJO, Makoto
IPC分类号： C08J11/12 , C07C67/333 , C07C69/54 , C10B53/07 , C10B57/06 , C10G1/10 , B01D5/00 , C10B47/00 , B01D1/14 , B01D1/16 , C10K1/02
摘要： The depolymerization method comprises the successive steps of pyrolizing a feed material containing polymer in a pyrolysis reactor so as to generate a hot gas stream, removing solid and liquid impurities from the gas stream in a separator and condensing the monomer contained in the gas stream in a condenser.
The gas stream is transferred from the separator to the condenser via a transfer column which is provided with internals. Cold monomer in liquid state is injected into the transfer column, the internals being configured such that the cold monomer flows downwardly inside the transfer column by gravity, heavy contaminants contained in the gas stream condense in liquid state on the internals and flow back down by gravity towards the bottom of the transfer column and into the separator.-
公开(公告)号：EP4206266A1
公开(公告)日：2023-07-05
申请号：EP21306952.9
申请日：2021-12-29
IPC分类号： C08J11/12 , C07C67/333 , C07C69/54 , C10B53/07 , C10B57/06 , C10G1/10 , B01D5/00 , C10B47/00
摘要： The depolymerization method is provided for recovering a monomer from a polymer and comprises the successive steps of pyrolyzing a feed material containing the polymer into a pyrolysis reactor so as to generate a gas stream, directing the gas stream from the pyrolysis reactor to a separator configured for removing impurities from the gas stream and directing the gas stream from the separator to a condenser for condensing the monomer contained in the gas stream. The temperature of the gas stream in the separator is maintained equal or higher than the boiling temperature of the monomer.
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公开(公告)号：EP4155341A1
公开(公告)日：2023-03-29
申请号：EP21306333.2
申请日：2021-09-27
发明人： TOJO, Makoto , KAKIZAKI, Jun , DUBOIS, Jean-Luc
摘要： The present application concerns a depolymerization process that can discriminate the grade of the polymer that is being processed and that can adjust its working conditions to optimize its yield depending on said grade of polymer. It also concerns the recycling of plastics comprising said depolymerization.
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