International Journal of Chemical Reactor Engineering最新文献

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Porous biochar production from pyrolysis of corn straw in a microwave heated reactor 在微波加热反应器中热解玉米秸秆生产多孔生物炭

International Journal of Chemical Reactor Engineering Pub Date : 2024-01-30 DOI: 10.1515/ijcre-2023-0128

Chaoyue Liu, Tianhao Qiu, Ehab Mostafa, Hui Liu, Wenke Zhao, Yaning Zhang

{"title":"Porous biochar production from pyrolysis of corn straw in a microwave heated reactor","authors":"Chaoyue Liu, Tianhao Qiu, Ehab Mostafa, Hui Liu, Wenke Zhao, Yaning Zhang","doi":"10.1515/ijcre-2023-0128","DOIUrl":"https://doi.org/10.1515/ijcre-2023-0128","url":null,"abstract":"\u0000 Conversion of corn straw into biochar by pyrolysis was considered as an environmentally friendly and efficient method for biomass sources because porous biochar has excellent properties and wide applications. Porous biochar production from corn straw in a microwave heated reactor was the main purpose of this study. The yields and microstructures of biochar produced at different pyrolysis temperatures (500, 600, 700, 800, and 900 °C), microwave powers (600, 650, 700, 750, and 800 W), and pyrolysis times (30, 40, 50, 60, and 70 min) were studied. The results showed that biochar yield ranged from 44.69 to 59.90 wt% with the changes of reaction conditions. Biochar with the nanoscale pores was first obtained at pyrolysis temperature of 800 °C, microwave power of 600 W, and pyrolysis time of 30 min, indicating that corn straw biochar had the potential to produce nanoscale pores. This study also quantitatively described the relationship between microstructure and productivity of corn straw biochar at different experimental conditions (pyrolysis temperature, microwave power, pyrolysis time), which can provide guidance for the reuse of corn straw and the production of porous biochar.","PeriodicalId":502324,"journal":{"name":"International Journal of Chemical Reactor Engineering","volume":"157 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140481897","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}

引用次数: 0

Analysis of flow field characteristics of the three-dimensional staggered rotor and its influence on structural parameters in the wiped film molecular distillation 三维交错转子的流场特性分析及其对抹膜分子蒸馏结构参数的影响

International Journal of Chemical Reactor Engineering Pub Date : 2024-01-25 DOI: 10.1515/ijcre-2023-0061

Haodong Zhang, Mengyang Xu, Xintao Pang, Zhenya Duan, Junmei Zhang, Xianqiang Meng

{"title":"Analysis of flow field characteristics of the three-dimensional staggered rotor and its influence on structural parameters in the wiped film molecular distillation","authors":"Haodong Zhang, Mengyang Xu, Xintao Pang, Zhenya Duan, Junmei Zhang, Xianqiang Meng","doi":"10.1515/ijcre-2023-0061","DOIUrl":"https://doi.org/10.1515/ijcre-2023-0061","url":null,"abstract":"\u0000 The implementation of a scraping rotor has enhanced the distribution of the liquid film in wiped film molecular distillation while also preventing groove flow and drywall phenomena. To investigate the structure of the rotor and its surrounding cylinder, a three-dimensional mathematical model of the interleaved rotor has been established using computational fluid dynamics (CFD), and the accuracy of the simulation model has been validated through experiments. Additionally, a three-dimensional staggered cylindrical rotor has been developed and used to explore the impact of different structural parameters on the distribution of the head wave and liquid film thickness. These findings have provided a theoretical basis for the creation of new rotor devices and furnished valuable empirical parameters for practical engineering applications. Furthermore, this research has been instrumental in elevating the efficiency and effectiveness of wiped film molecular distillation, and at the same time, it provides important support for improving the structure of the scraping film molecular distillation equipment in the industry.","PeriodicalId":502324,"journal":{"name":"International Journal of Chemical Reactor Engineering","volume":"81 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139596810","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}

引用次数: 0

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