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公开(公告)号：US20230212370A1
公开(公告)日：2023-07-06
申请号：US17996008
申请日：2021-04-13
发明人： Bruce Roger DeBruin , Michael Paul Ekart , Kyle Lyn Collings , Anne-Martine Sherbeck Jackson , Nathan Mitchell West , Zhufang Liu
CPC分类号： C08J11/22 , B29B17/0026 , B29B17/04 , B29B17/02 , B29B2017/0203 , B29B2017/0224 , B29B2017/0293 , B29B2017/0484 , B29K2067/003
摘要： Processes and facilities for using one or more PET-containing materials as a feedstock to a chemical recycling facility, and in particular a solvolysis facility, are provided herein. The PET-containing materials used as feedstock may comprise a quantity of PET-containing dry fines. The PET-containing dry fines may be derived from various processes and facilities, including PET reclaimer facilities and/or manufacturers of PET articles. For example, the dry fines may be collected from solid-liquid separators and/or dust collectors from processes that include conveying, drying, densification, centrifugation processes, and/or grinding PET-containing plastic material. Such dry fines are generally undesirable or unusable to mechanical PET recycling facilities, and typically are sent to landfills and/or incinerators. However, the processes and facilities described herein make use of the PET and other plastics present in these otherwise undesirable or unusable dry fines.
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公开(公告)号：US20230183441A1
公开(公告)日：2023-06-15
申请号：US17996003
申请日：2021-04-13
发明人： Bruce Roger DeBruin , Michael Paul Ekart , Anne-Martine Sherbeck Jackson , Nathan Mitchell West , Zhufang Liu
IPC分类号： C08J11/16
CPC分类号： C08J11/16 , C08J2327/06 , C08J2367/02
摘要： Processes and facilities for using one or more PET-containing materials as a feedstock to a chemical recycling facility, and in particular a solvolysis facility, are provided herein. The PET-containing materials used as feedstock may comprise a quantity of PET and PVC-containing reclaimer flake reject. The PET and PVC-containing reclaimer flake reject may be derived from various plastic reclaimer separation processes, including density separation. Such flake reject materials are generally undesirable or unusable to mechanical PET recycling facilities due to the PVC content, and typically are sent to landfills and/or incinerators. However, the processes and facilities described herein make use of the PET and other plastics present in these otherwise undesirable or unusable flake reject materials.
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公开(公告)号：US20230183439A1
公开(公告)日：2023-06-15
申请号：US17996002
申请日：2021-04-13
发明人： Bruce Roger DeBruin , Michael Paul Ekart , Anne-Martine Sherbeck Jackson , Nathan Mitchell West , Zhufang Liu
CPC分类号： C08J11/10 , B09B3/70 , B09B3/80 , B09B2101/75
摘要： Processes and facilities for using one or more PET-containing materials as a feedstock to a chemical recycling facility, and in particular a solvolysis facility, are provided herein. The PET-containing materials used as feedstock may comprise a quantity of PET and metal-containing reclaimer co-product. The PET and metal-containing reclaimer co-product may comprise a quantity of plastic articles, plastic flakes, and/or plastic fines, and may be derived from plastic reclaimer separation processes such as eddy current separators. Such metal-containing co-products are generally undesirable or unusable to mechanical PET recycling facilities, and typically are sent to landfills and/or incinerators. However, the processes and facilities described herein make use of the PET and other plastics present in these otherwise undesirable or unusable metal-containing co-products.
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公开(公告)号：US20230323023A1
公开(公告)日：2023-10-12
申请号：US18330028
申请日：2023-06-06
发明人： Anne-Martine Sherbeck Jackson , Rachel Elizabeth McLendon , Bruce Roger DeBruin , Michael Paul Ekart , Dale Milton Blakely , Robert Todd Harris
IPC分类号： C08G63/199 , C08G63/183 , C08G63/66
CPC分类号： C08G63/199 , C08G63/183 , C08G63/66
摘要： Copolyesters made from the direct esterification of terephthalic acid with diols including ethylene glycol, but which contain low diethylene glycol (DEG) content, and processes for making the copolyesters. The copolyesters are characterized by comprising 1.0 wt % or less of DEG without requiring the use of DEG-suppressing additives. The processes are characterized by features including operating at lower pressures and lower EG:TPA feed mole ratios in the first reaction zone, while simultaneously at higher temperatures than typical operation in order to lower incorporation of DEG into the final polymer.
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公开(公告)号：US11708453B2
公开(公告)日：2023-07-25
申请号：US17309707
申请日：2019-12-17
发明人： Anne-Martine Sherbeck Jackson , Rachel Elizabeth McLendon , Bruce Roger DeBruin , Michael Paul Ekart , Dale Milton Blakely , Robert Todd Harris
IPC分类号： C08G63/199 , C08G63/183 , C08G63/66
CPC分类号： C08G63/199 , C08G63/183 , C08G63/66
摘要： Process for preparing copolyesters by introducing TPA, EG, and CHDM at an EG:TPA molar ratio of 2.3:1 to 2.7:1 into a reaction zone; reacting TPA with EG and CHDM at a temperature of at least 250° C. and pressure of up to 40 psi to form a first esterification product; passing the first esterification product to a reaction zone; esterifying the first esterification product at a temperature of at least 250° C. and pressure of up to 20 psi to form a second esterification product, passing the second esterification product to a reaction zone; polycondensing the second esterification product in the presence of a catalyst to form a prepolymerization product; passing the prepolymerization product to one or more reaction zones; and polycondensing the prepolymerization product in the presence of the catalyst to form a copolyester comprising 1.0 wt % or less of DEG, without requiring the use of DEG-suppressing additives.
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公开(公告)号：US20230203270A1
公开(公告)日：2023-06-29
申请号：US17996011
申请日：2021-04-13
发明人： Bruce Roger DeBruin , Michael Paul Ekart , Anne-Martine Sherbeck Jackson , Nathan Mitchell West , Zhufang Liu
CPC分类号： C08J11/24 , B01J31/2239 , C07C51/38 , C08J2367/02 , B01J2523/72 , B01J2523/27
摘要： Chemical recycling facilities for processing mixed waste plastic are provided herein. Such facilities have the capability of processing mixed plastic waste streams and utilize a variety of recycling facilities, such as, for example, solvolysis facility, a pyrolysis facility, a cracker facility, a partial oxidation gasification facility, an energy recovery facility, and a solidification facility. Streams from one or more of these individual facilities may be used as feed to one or more of the other facilities, thereby maximizing recovery of valuable chemical components and minimizing unusable waste streams.
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公开(公告)号：US20230203268A1
公开(公告)日：2023-06-29
申请号：US17996012
申请日：2021-04-13
发明人： Bruce Roger DeBruin , Michael Paul Ekart , Xianchun Wu , David Eugene Slivensky , Daryl Bitting , Anne-Martine Sherbeck Jackson , Nathan Mitchell West , Zhufang Liu
IPC分类号： C08J11/08 , B01J4/00 , C07C51/38 , C07C29/147
CPC分类号： C08J11/08 , B01J4/001 , C07C51/38 , C07C29/147 , C08J2367/02
摘要： Chemical recycling facilities for processing mixed waste plastic are provided herein. Such facilities have the capability of processing mixed plastic waste streams and utilize a variety of recycling facilities, such as, for example, solvolysis facility, a pyrolysis facility, a cracker facility, a partial oxidation gasification facility, an energy recovery facility, and a solidification facility. Streams from one or more of these individual facilities may be used as feed to one or more of the other facilities, thereby maximizing recovery of valuable chemical components and minimizing unusable waste streams.
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公开(公告)号：US20230227622A1
公开(公告)日：2023-07-20
申请号：US17996000
申请日：2021-04-13
发明人： Bruce Roger DeBruin , Michael Paul Ekart , Anne-Martine Sherbeck Jackson , Nathan Mitchell West , Zhufang Liu
IPC分类号： C08J11/24
CPC分类号： C08J11/24 , C08J2367/02
摘要： Processes and facilities for using one or more PET-containing materials as a feedstock to a chemical recycling facility, and in particular a solvolysis facility, are provided herein. The PET-containing materials used as feedstock may comprise colored plastic-containing mixtures derived as products or co-products from plastic reclaimer facilities and/or municipal recycling facilities. Such mixtures are generally undesirable or unusable to mechanical PET recycling facilities, and typically are sent to landfills and/or incinerators. However, the processes and facilities described herein make use of the PET and other plastics present in these otherwise undesirable or unusable colored plastic-containing mixtures.
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公开(公告)号：US20230220180A1
公开(公告)日：2023-07-13
申请号：US17996006
申请日：2021-04-13
发明人： Bruce Roger DeBruin , Michael Paul Ekart , Anne-Martine Sherbeck Jackson , Nathan Mitchell West , Zhufang Liu
CPC分类号： C08J11/18 , B29B17/04 , B29B17/0026 , B29B17/02 , B29B2017/0203 , B29B2017/0293 , B29B2017/0484 , B29K2067/003
摘要： Processes and facilities for using one or more PET-containing materials as a feedstock to a chemical recycling facility, and in particular a solvolysis facility, are provided herein. The PET-containing materials used as feedstock may comprise a quantity of PET-containing solidified purge material. The PET-containing solidified purge material may be derived from various processes and facilities, including PET reclaimer facilities, manufacturers of PET articles, and/or a polymer manufacturing facilities. For example, he purge material may be the solidified purge material from an extrusion and/or pelletization process. Such solidified purge materials are generally undesirable or unusable to mechanical PET recycling facilities, and typically are sent to landfills and/or incinerators. However, the processes and facilities described herein make use of the PET and other plastics present in these otherwise undesirable or unusable solidified purge materials.
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公开(公告)号：US20230183443A1
公开(公告)日：2023-06-15
申请号：US17996010
申请日：2021-04-13
发明人： Bruce Roger DeBruin , Michael Paul Ekart , David Milton Lange , Aaron Nathaniel Edens , Anne-Martine Sherbeck Jackson , Nathan Mitchell West , Zhufang Liu
IPC分类号： C08J11/24
CPC分类号： C08J11/24 , C08J2367/02
摘要： Chemical recycling facilities for processing mixed waste plastic are provided herein. Such facilities have the capability of processing mixed plastic waste streams and utilize a variety of recycling facilities, such as, for example, solvolysis facility, a pyrolysis facility, a cracker facility, a partial oxidation gasification facility, an energy recovery facility, and a solidification facility. Streams from one or more of these individual facilities may be used as feed to one or more of the other facilities, thereby maximizing recovery of valuable chemical components and minimizing unusable waste streams.
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