Pub Date : 2022-03-04DOI: 10.1007/s43938-022-00009-y
I. Brewis, Rana-Faisal Shahzad, R. Field, A. Jedidi, Shahid Rasul
{"title":"Combining experimental and theoretical insights for reduction of CO2 to multi-carbon compounds","authors":"I. Brewis, Rana-Faisal Shahzad, R. Field, A. Jedidi, Shahid Rasul","doi":"10.1007/s43938-022-00009-y","DOIUrl":"https://doi.org/10.1007/s43938-022-00009-y","url":null,"abstract":"","PeriodicalId":72823,"journal":{"name":"Discover chemical engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41962233","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 : 2022-01-27DOI: 10.1007/s43938-022-00008-z
S. Harcum, K. Elliott, Bradley A. Skelton, Stephanie R. Klaubert, Hussain Dahodwala, Kelvin H. Lee
{"title":"PID controls: the forgotten bioprocess parameters","authors":"S. Harcum, K. Elliott, Bradley A. Skelton, Stephanie R. Klaubert, Hussain Dahodwala, Kelvin H. Lee","doi":"10.1007/s43938-022-00008-z","DOIUrl":"https://doi.org/10.1007/s43938-022-00008-z","url":null,"abstract":"","PeriodicalId":72823,"journal":{"name":"Discover chemical engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49353908","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 : 2022-01-01Epub Date: 2022-10-26DOI: 10.1007/s43938-022-00013-2
Qasim Imtiaz, Andac Armutlulu, Felix Donat, Christoph Müller
Thermochemical redox cycles such as chemical looping combustion (CLC) are an economically promising CO2 capture technology that rely on the combustion of a hydrocarbon fuel with lattice oxygen that is derived from a solid oxygen carrier. The oxygen carrier is typically regenerated with air. To increase the agglomeration resistance and redox stability of the oxygen carriers, the active phase is often stabilized with high Tammann temperature ceramics, resulting in the formation of so-called cermet structures. It has been hypothesized that the redox performance of the cermets depends critically on the conduction pathways for solid-state ionic diffusion and the activation energy for charge transport. Here, we investigate the influence of the formation of a percolation network on the electrical conductivity and the rate of oxidation for CeO2-stabilized Cu. We found that for oxygen carriers that contained 60 wt. % CuO, the charge transport occurred predominately via Cu/CuO conduction pathways. Below the percolation threshold of CuO, the conduction of charge carriers took place via CeO2 grains, which formed a continuous network. The measurements of charge transport and redox characteristics confirmed that the activation energy for charge transport through the cermet increased with decreasing Cu content. This indicates that the solid-state diffusion of charge carriers plays an important role during re-oxidation.
Supplementary information: The online version contains supplementary material available at 10.1007/s43938-022-00013-2.
{"title":"CuO-based materials for thermochemical redox cycles: the influence of the formation of a CuO percolation network on oxygen release and oxidation kinetics.","authors":"Qasim Imtiaz, Andac Armutlulu, Felix Donat, Christoph Müller","doi":"10.1007/s43938-022-00013-2","DOIUrl":"10.1007/s43938-022-00013-2","url":null,"abstract":"<p><p>Thermochemical redox cycles such as chemical looping combustion (CLC) are an economically promising CO<sub>2</sub> capture technology that rely on the combustion of a hydrocarbon fuel with lattice oxygen that is derived from a solid oxygen carrier. The oxygen carrier is typically regenerated with air. To increase the agglomeration resistance and redox stability of the oxygen carriers, the active phase is often stabilized with high Tammann temperature ceramics, resulting in the formation of so-called cermet structures. It has been hypothesized that the redox performance of the cermets depends critically on the conduction pathways for solid-state ionic diffusion and the activation energy for charge transport. Here, we investigate the influence of the formation of a percolation network on the electrical conductivity and the rate of oxidation for CeO<sub>2</sub>-stabilized Cu. We found that for oxygen carriers that contained 60 wt. % CuO, the charge transport occurred predominately via Cu/CuO conduction pathways. Below the percolation threshold of CuO, the conduction of charge carriers took place via CeO<sub>2</sub> grains, which formed a continuous network. The measurements of charge transport and redox characteristics confirmed that the activation energy for charge transport through the cermet increased with decreasing Cu content. This indicates that the solid-state diffusion of charge carriers plays an important role during re-oxidation.</p><p><strong>Supplementary information: </strong>The online version contains supplementary material available at 10.1007/s43938-022-00013-2.</p>","PeriodicalId":72823,"journal":{"name":"Discover chemical engineering","volume":"2 1","pages":"6"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9625079/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9243599","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 : 2021-12-01DOI: 10.1007/s43938-021-00006-7
R. Field, Qianhong She, F. A. Siddiqui, A. Fane
{"title":"Reverse osmosis and forward osmosis fouling: a comparison","authors":"R. Field, Qianhong She, F. A. Siddiqui, A. Fane","doi":"10.1007/s43938-021-00006-7","DOIUrl":"https://doi.org/10.1007/s43938-021-00006-7","url":null,"abstract":"","PeriodicalId":72823,"journal":{"name":"Discover chemical engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46506080","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 : 2021-11-22DOI: 10.1007/s43938-021-00007-6
J. Wu
{"title":"Improving membrane filtration performance through time series analysis","authors":"J. Wu","doi":"10.1007/s43938-021-00007-6","DOIUrl":"https://doi.org/10.1007/s43938-021-00007-6","url":null,"abstract":"","PeriodicalId":72823,"journal":{"name":"Discover chemical engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47437346","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 : 2021-10-30DOI: 10.1007/s43938-021-00004-9
Hamza Shafiq, Shakir Ul Azam, A. Hussain
{"title":"Steam gasification of municipal solid waste for hydrogen production using Aspen Plus® simulation","authors":"Hamza Shafiq, Shakir Ul Azam, A. Hussain","doi":"10.1007/s43938-021-00004-9","DOIUrl":"https://doi.org/10.1007/s43938-021-00004-9","url":null,"abstract":"","PeriodicalId":72823,"journal":{"name":"Discover chemical engineering","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42961131","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 : 2021-07-01DOI: 10.1007/s43938-021-00003-w
I. T. Horsfall, M. Ndukwu, F. Abam, O. Olatunji, O. E. Ojong, Keavey Osa-aria
{"title":"Validation of MATLAB algorithm to implement a two-step parallel pyrolysis model for the prediction of maximum %char yield","authors":"I. T. Horsfall, M. Ndukwu, F. Abam, O. Olatunji, O. E. Ojong, Keavey Osa-aria","doi":"10.1007/s43938-021-00003-w","DOIUrl":"https://doi.org/10.1007/s43938-021-00003-w","url":null,"abstract":"","PeriodicalId":72823,"journal":{"name":"Discover chemical engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s43938-021-00003-w","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45404629","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 : 2021-05-06DOI: 10.1007/s43938-021-00002-x
Andrés González-Garay, N. Mac Dowell, N. Shah
{"title":"A carbon neutral chemical industry powered by the sun","authors":"Andrés González-Garay, N. Mac Dowell, N. Shah","doi":"10.1007/s43938-021-00002-x","DOIUrl":"https://doi.org/10.1007/s43938-021-00002-x","url":null,"abstract":"","PeriodicalId":72823,"journal":{"name":"Discover chemical engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s43938-021-00002-x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47074596","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 : 2021-04-09DOI: 10.1007/s43938-021-00005-8
Badia Imene Cherifi, M. Belbachir, Abdelkader Rahmouni
{"title":"Green anionic polymerization of vinyl acetate using Maghnite-Na+ (Algerian MMT): synthesis characterization and reactional mechanism","authors":"Badia Imene Cherifi, M. Belbachir, Abdelkader Rahmouni","doi":"10.1007/s43938-021-00005-8","DOIUrl":"https://doi.org/10.1007/s43938-021-00005-8","url":null,"abstract":"","PeriodicalId":72823,"journal":{"name":"Discover chemical engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43430103","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 : 2020-11-18DOI: 10.1007/s43938-020-00001-4
Long Cheng, Gongpin Liu, W. Jin
{"title":"Recent advances in facilitated transport membranes for olefin/paraffin separation","authors":"Long Cheng, Gongpin Liu, W. Jin","doi":"10.1007/s43938-020-00001-4","DOIUrl":"https://doi.org/10.1007/s43938-020-00001-4","url":null,"abstract":"","PeriodicalId":72823,"journal":{"name":"Discover chemical engineering","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s43938-020-00001-4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47418757","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}
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