Pub Date : 2024-04-19DOI: 10.1038/s44286-024-00064-y
Meng Wang, Yongjun Gao, Shaoyu Yuan, Jin Deng, Jie Yang, Jie Yan, Shixiang Yu, Bingjun Xu, Ding Ma
The accumulation of plastic waste in the environment has led to a global crisis with severe consequences for wildlife and ecosystems. Upcycling offers a promising solution for reducing plastic waste by converting it into valuable chemicals and fuels. Real-life plastic waste exists as complex mixtures of different types of plastic, which poses a key challenge for efficient upcycling. Here, by using sunlight as the sole energy source, we report a thermocatalytic approach for transforming a plastic waste mixture collected from daily usage into methane and HCl using an earth-abundant Ni-based catalyst. This process successfully converted 1.03 g of a plastic waste mixture, containing five types of polyolefin, polyester and polyvinyl chloride, into 1.08 g of methane (yieldC 98%) and 0.045 g of HCl (yieldCl 91%). Catalyst deactivation caused by chlorine poisoning is prevented through the temperature-ramped process driven by the diurnal sunlight cycle, ensuring sustained catalytic activity over a period of 10 days. Real-life plastic waste exists as complex mixtures, posing a challenge for efficient upcycling. Now a sunlight-powered thermocatalytic process using a Ni-based catalyst converts a plastic mixture into CH4, H2O and HCl. Notably, chlorine poisoning is minimized through temperature modulation driven by the diurnal sunlight cycle.
{"title":"Complete hydrogenolysis of mixed plastic wastes","authors":"Meng Wang, Yongjun Gao, Shaoyu Yuan, Jin Deng, Jie Yang, Jie Yan, Shixiang Yu, Bingjun Xu, Ding Ma","doi":"10.1038/s44286-024-00064-y","DOIUrl":"10.1038/s44286-024-00064-y","url":null,"abstract":"The accumulation of plastic waste in the environment has led to a global crisis with severe consequences for wildlife and ecosystems. Upcycling offers a promising solution for reducing plastic waste by converting it into valuable chemicals and fuels. Real-life plastic waste exists as complex mixtures of different types of plastic, which poses a key challenge for efficient upcycling. Here, by using sunlight as the sole energy source, we report a thermocatalytic approach for transforming a plastic waste mixture collected from daily usage into methane and HCl using an earth-abundant Ni-based catalyst. This process successfully converted 1.03 g of a plastic waste mixture, containing five types of polyolefin, polyester and polyvinyl chloride, into 1.08 g of methane (yieldC 98%) and 0.045 g of HCl (yieldCl 91%). Catalyst deactivation caused by chlorine poisoning is prevented through the temperature-ramped process driven by the diurnal sunlight cycle, ensuring sustained catalytic activity over a period of 10 days. Real-life plastic waste exists as complex mixtures, posing a challenge for efficient upcycling. Now a sunlight-powered thermocatalytic process using a Ni-based catalyst converts a plastic mixture into CH4, H2O and HCl. Notably, chlorine poisoning is minimized through temperature modulation driven by the diurnal sunlight cycle.","PeriodicalId":501699,"journal":{"name":"Nature Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140684317","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-10DOI: 10.1038/s44286-024-00055-z
Mo Qiao
Junwang Tang and Binhang Yan discuss the role of the Industrial Catalysis Center at Tsinghua University and their perspectives on modern industrial catalysis with Nature Chemical Engineering.
{"title":"Catalyzing the chemical industry","authors":"Mo Qiao","doi":"10.1038/s44286-024-00055-z","DOIUrl":"10.1038/s44286-024-00055-z","url":null,"abstract":"Junwang Tang and Binhang Yan discuss the role of the Industrial Catalysis Center at Tsinghua University and their perspectives on modern industrial catalysis with Nature Chemical Engineering.","PeriodicalId":501699,"journal":{"name":"Nature Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140544628","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-10DOI: 10.1038/s44286-024-00066-w
Electrification endows modern separation processes with the capability to tackle a broader array of challenges using potentially sustainable energy resources.
电气化赋予了现代分离工艺利用潜在的可持续能源应对更广泛挑战的能力。
{"title":"Factoring in electrochemical separations","authors":"","doi":"10.1038/s44286-024-00066-w","DOIUrl":"10.1038/s44286-024-00066-w","url":null,"abstract":"Electrification endows modern separation processes with the capability to tackle a broader array of challenges using potentially sustainable energy resources.","PeriodicalId":501699,"journal":{"name":"Nature Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s44286-024-00066-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140544567","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-10DOI: 10.1038/s44286-024-00052-2
D. Ian Wilson
An appreciation of characteristic timescales can save quite a lot of effort, as Ian Wilson explains.
正如伊恩-威尔逊（Ian Wilson）所解释的那样，了解时间尺度的特点可以节省很多精力。
{"title":"How long is this going to take?","authors":"D. Ian Wilson","doi":"10.1038/s44286-024-00052-2","DOIUrl":"10.1038/s44286-024-00052-2","url":null,"abstract":"An appreciation of characteristic timescales can save quite a lot of effort, as Ian Wilson explains.","PeriodicalId":501699,"journal":{"name":"Nature Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140544585","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-10DOI: 10.1038/s44286-024-00059-9
Yanfei Zhu
{"title":"Indium holds it stable","authors":"Yanfei Zhu","doi":"10.1038/s44286-024-00059-9","DOIUrl":"10.1038/s44286-024-00059-9","url":null,"abstract":"","PeriodicalId":501699,"journal":{"name":"Nature Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140544613","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-10DOI: 10.1038/s44286-024-00058-w
Alessio Lavino
{"title":"Regulating protein condensate miscibility","authors":"Alessio Lavino","doi":"10.1038/s44286-024-00058-w","DOIUrl":"10.1038/s44286-024-00058-w","url":null,"abstract":"","PeriodicalId":501699,"journal":{"name":"Nature Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140544629","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-10DOI: 10.1038/s44286-024-00057-x
Thomas Dursch
{"title":"Upping the bounds for charged membranes","authors":"Thomas Dursch","doi":"10.1038/s44286-024-00057-x","DOIUrl":"10.1038/s44286-024-00057-x","url":null,"abstract":"","PeriodicalId":501699,"journal":{"name":"Nature Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140544630","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-04DOI: 10.1038/s44286-024-00048-y
Yuan Yao
The carbon footprints of petrochemicals have large uncertainties, challenging decarbonization efforts. Now, a study identifies the main uncertainty sources and strategies for improving the accuracy of greenhouse gas emissions estimations and reporting for petrochemicals.
{"title":"Mitigating uncertainties enables more accurate greenhouse gas accounting for petrochemicals","authors":"Yuan Yao","doi":"10.1038/s44286-024-00048-y","DOIUrl":"10.1038/s44286-024-00048-y","url":null,"abstract":"The carbon footprints of petrochemicals have large uncertainties, challenging decarbonization efforts. Now, a study identifies the main uncertainty sources and strategies for improving the accuracy of greenhouse gas emissions estimations and reporting for petrochemicals.","PeriodicalId":501699,"journal":{"name":"Nature Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140544578","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-03DOI: 10.1038/s44286-024-00053-1
Boelo Schuur
Liquid–liquid extraction is an indirect separation technique requiring solvent regeneration, and if a back-extraction is needed, it typically reduces the concentration. Now, using an electrochemical reaction, the concentration can be pumped up to 16 times the feed concentration.
{"title":"Electrochemical concentration pumping in liquid–liquid extractions","authors":"Boelo Schuur","doi":"10.1038/s44286-024-00053-1","DOIUrl":"10.1038/s44286-024-00053-1","url":null,"abstract":"Liquid–liquid extraction is an indirect separation technique requiring solvent regeneration, and if a back-extraction is needed, it typically reduces the concentration. Now, using an electrochemical reaction, the concentration can be pumped up to 16 times the feed concentration.","PeriodicalId":501699,"journal":{"name":"Nature Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140544575","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-03DOI: 10.1038/s44286-024-00056-y
Viola Becattini, Stefan Wiemer, Marco Mazzotti
The existential threat posed by the climate crisis calls for urgent solutions to manage hard-to-abate and unavoidable CO2 emissions. This Comment shows, by example, the key role that scientists can play in launching pioneering pilot projects, leveraging their research, systems understanding and networks, and thus educating the next generation of climate innovators.
{"title":"Accelerating the climate transition through scientist-led CO2 management pilot projects","authors":"Viola Becattini, Stefan Wiemer, Marco Mazzotti","doi":"10.1038/s44286-024-00056-y","DOIUrl":"10.1038/s44286-024-00056-y","url":null,"abstract":"The existential threat posed by the climate crisis calls for urgent solutions to manage hard-to-abate and unavoidable CO2 emissions. This Comment shows, by example, the key role that scientists can play in launching pioneering pilot projects, leveraging their research, systems understanding and networks, and thus educating the next generation of climate innovators.","PeriodicalId":501699,"journal":{"name":"Nature Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s44286-024-00056-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140544612","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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