Journal of advanced manufacturing and processing最新文献_第6页

Numerical and experimental investigation of the unexpected thickening effect during PolyActive™ coating of TFC membranes 对聚碳酸酯膜涂覆 PolyActive™ 过程中意外增厚效应的数值和实验研究

Journal of advanced manufacturing and processing Pub Date : 2024-02-20 DOI: 10.1002/amp2.10175

Florian Brennecke, Juliana Clodt, Torsten Brinkmann, Volker Abetz

{"title":"Numerical and experimental investigation of the unexpected thickening effect during PolyActive™ coating of TFC membranes","authors":"Florian Brennecke, Juliana Clodt, Torsten Brinkmann, Volker Abetz","doi":"10.1002/amp2.10175","DOIUrl":"10.1002/amp2.10175","url":null,"abstract":"In this work, we used a previously described computational fluid dynamics (CFD) model of a roll-to-roll coating process for the fabrication of thin-film composite membranes to predict the final coating thickness for PolyActive™, a commercially available multiblock copolymer utilized for CO2 removal membranes. We found a strong thickening effect that could not be explained by our previous model. We investigated the process experimentally. In addition, we conducted a variety of simulations with extensions of the initial CFD model. Based on our findings, we conclude that the Marangoni effect, that is, gradients of surface tension that induce secondary flow patterns in the meniscus region, is the most likely source of the observed thickening. We explain the simulation results in order to understand the physical mechanisms at play and to show how especially surface tension gradients that arise from the particular flow structure in the meniscus may explain the additional transfer of polymer solution to the membrane. Finally, we draw some conclusions on future research and give ideas on future improvements of the process. To our knowledge, Marangoni effects for the coating of PolyActive™ were not described so far in the literature, even though it is a well-known polymer for gas separation membranes targeted at CO2 removal. Roll-to-roll coating is a well-established coating method and often believed to be suitable for the scale-up of membrane production, therefore we think that this work will help membrane researchers who are using similar coating devices to be cautious about possible complications in the process.","PeriodicalId":87290,"journal":{"name":"Journal of advanced manufacturing and processing","volume":"6 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/amp2.10175","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140552116","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}

引用次数: 0

Liquid organic hydrogen carriers: Process design and economic analysis for manufacturing N-ethylcarbazole 液态有机氢载体：制造 N-乙基咔唑的工艺设计和经济分析

Journal of advanced manufacturing and processing Pub Date : 2024-02-12 DOI: 10.1002/amp2.10173

E. M. T. Uijthof, B. S. Chavan, M. J. Sluijer, V. C. Komath, A. G. J. van der Ham, H. van den Berg, J.-P. Lange, A. Higler, S. Wijnans

{"title":"Liquid organic hydrogen carriers: Process design and economic analysis for manufacturing N-ethylcarbazole","authors":"E. M. T. Uijthof, B. S. Chavan, M. J. Sluijer, V. C. Komath, A. G. J. van der Ham, H. van den Berg, J.-P. Lange, A. Higler, S. Wijnans","doi":"10.1002/amp2.10173","DOIUrl":"10.1002/amp2.10173","url":null,"abstract":"This paper revisits the economics of manufacturing N-ethylcarbazole (NEC), a strong candidate for large-scale liquid organic hydrogen carrier (LOHC) supply chains, because of its high H2 storage capacity (6 wt%), selective hydrogenation and dehydrogenation reactions, and favorable reaction enthalpy and reaction temperatures compared to other LOHC systems. Two different process routes for producing NEC from industrial chemicals are selected out of 10 possible options: one using aniline and the other using cyclohexanone and nitrobenzene as feedstock. The required capital and operational costs are estimated to determine a NEC break-even cost for a capacity of 225 ktpa. NEC break-even costs of $3.0 and $2.6 per kg LOHC are found for the routes. This is significantly less than the $40/kg cost that has generally been reported in literature for NEC, thus improving the economic viability of using NEC as LOHC. The total fixed capital costs are estimated to be $200 MM and $250 MM. Furthermore, the prices of the feedstock show the largest influence (76% and 72%) on the final NEC break-even costs. The overall LOHC price contribution to the levelized H2 cost is estimated to be $0.77–$0.90 per kg H2 for a 60-day roundtrip and $0.09–$0.10 per kg H2 for a 7-day roundtrip. It is important to note that both routes rely heavily on laboratory scale data and the corresponding assumptions that stem from this limitation. Therefore, this research can serve as a guide to future experimental studies into validating the key assumptions made for this analysis.","PeriodicalId":87290,"journal":{"name":"Journal of advanced manufacturing and processing","volume":"6 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/amp2.10173","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139842730","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}

引用次数: 0

Conceptual range estimation for total cost of ownership of modular process-intensified chemical plants 模块化流程强化化工厂总拥有成本的概念范围估算

Journal of advanced manufacturing and processing Pub Date : 2024-02-12 DOI: 10.1002/amp2.10176

Khaled I. Alhamouri, James T. O'Connor, Karl R. Haapala, Brian K. Paul

{"title":"Conceptual range estimation for total cost of ownership of modular process-intensified chemical plants","authors":"Khaled I. Alhamouri, James T. O'Connor, Karl R. Haapala, Brian K. Paul","doi":"10.1002/amp2.10176","DOIUrl":"10.1002/amp2.10176","url":null,"abstract":"Chemical companies have used modularization to reduce capital costs and project timelines, putting capital to work faster and lowering the risk of entering new markets. Nevertheless, the impacts of using modularization along with advanced technologies, such as process intensification, have not yet been fully realized, often due to the uncertain business risks associated with their implementation. Therefore, new methods are needed for quantifying the impact of modular chemical process intensification (MCPI) on the capital and operating costs of chemical plants to help build a business case for this novel approach. This article presents a new conceptual range estimation technique for total cost of ownership that addresses the deficiencies of existing methods for quantifying MCPI impacts. The incorporation of percentage range estimates was employed to allow for adaptability across various cost and size scales. This work also begins to elucidate how chemical engineering and construction firms can benefit from MCPI and identifies barriers that inhibit MCPI applications in the chemical industry.","PeriodicalId":87290,"journal":{"name":"Journal of advanced manufacturing and processing","volume":"6 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://aiche.onlinelibrary.wiley.com/doi/epdf/10.1002/amp2.10176","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139844052","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}

引用次数: 0

Liquid organic hydrogen carriers: Process design and economic analysis for manufacturing N-ethylcarbazole 液态有机氢载体：制造 N-乙基咔唑的工艺设计和经济分析

Journal of advanced manufacturing and processing Pub Date : 2024-02-12 DOI: 10.1002/amp2.10173

E. M. T. Uijthof, B. S. Chavan, M. J. Sluijer, V. C. Komath, A. G. J. van der Ham, H. van den Berg, J.-P. Lange, A. Higler, S. Wijnans

{"title":"Liquid organic hydrogen carriers: Process design and economic analysis for manufacturing N-ethylcarbazole","authors":"E. M. T. Uijthof, B. S. Chavan, M. J. Sluijer, V. C. Komath, A. G. J. van der Ham, H. van den Berg, J.-P. Lange, A. Higler, S. Wijnans","doi":"10.1002/amp2.10173","DOIUrl":"10.1002/amp2.10173","url":null,"abstract":"This paper revisits the economics of manufacturing N-ethylcarbazole (NEC), a strong candidate for large-scale liquid organic hydrogen carrier (LOHC) supply chains, because of its high H2 storage capacity (6 wt%), selective hydrogenation and dehydrogenation reactions, and favorable reaction enthalpy and reaction temperatures compared to other LOHC systems. Two different process routes for producing NEC from industrial chemicals are selected out of 10 possible options: one using aniline and the other using cyclohexanone and nitrobenzene as feedstock. The required capital and operational costs are estimated to determine a NEC break-even cost for a capacity of 225 ktpa. NEC break-even costs of $3.0 and $2.6 per kg LOHC are found for the routes. This is significantly less than the $40/kg cost that has generally been reported in literature for NEC, thus improving the economic viability of using NEC as LOHC. The total fixed capital costs are estimated to be $200 MM and $250 MM. Furthermore, the prices of the feedstock show the largest influence (76% and 72%) on the final NEC break-even costs. The overall LOHC price contribution to the levelized H2 cost is estimated to be $0.77–$0.90 per kg H2 for a 60-day roundtrip and $0.09–$0.10 per kg H2 for a 7-day roundtrip. It is important to note that both routes rely heavily on laboratory scale data and the corresponding assumptions that stem from this limitation. Therefore, this research can serve as a guide to future experimental studies into validating the key assumptions made for this analysis.","PeriodicalId":87290,"journal":{"name":"Journal of advanced manufacturing and processing","volume":"6 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://aiche.onlinelibrary.wiley.com/doi/epdf/10.1002/amp2.10173","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139783060","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}

引用次数: 0

Conceptual range estimation for total cost of ownership of modular process-intensified chemical plants 模块化流程强化化工厂总拥有成本的概念范围估算

Journal of advanced manufacturing and processing Pub Date : 2024-02-12 DOI: 10.1002/amp2.10176

Khaled I. Alhamouri, James T. O'Connor, Karl R. Haapala, Brian K. Paul

{"title":"Conceptual range estimation for total cost of ownership of modular process-intensified chemical plants","authors":"Khaled I. Alhamouri, James T. O'Connor, Karl R. Haapala, Brian K. Paul","doi":"10.1002/amp2.10176","DOIUrl":"10.1002/amp2.10176","url":null,"abstract":"Chemical companies have used modularization to reduce capital costs and project timelines, putting capital to work faster and lowering the risk of entering new markets. Nevertheless, the impacts of using modularization along with advanced technologies, such as process intensification, have not yet been fully realized, often due to the uncertain business risks associated with their implementation. Therefore, new methods are needed for quantifying the impact of modular chemical process intensification (MCPI) on the capital and operating costs of chemical plants to help build a business case for this novel approach. This article presents a new conceptual range estimation technique for total cost of ownership that addresses the deficiencies of existing methods for quantifying MCPI impacts. The incorporation of percentage range estimates was employed to allow for adaptability across various cost and size scales. This work also begins to elucidate how chemical engineering and construction firms can benefit from MCPI and identifies barriers that inhibit MCPI applications in the chemical industry.","PeriodicalId":87290,"journal":{"name":"Journal of advanced manufacturing and processing","volume":"6 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/amp2.10176","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139783983","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}

引用次数: 0

From circular to elliptical: A useful reformulation of the closed loop economy? 从循环到椭圆：闭环经济的有效重构？

Journal of advanced manufacturing and processing Pub Date : 2024-01-21 DOI: 10.1002/amp2.10174

Matthew J. Realff, Mehdi Tajvidi

引用次数: 0

Methane fermentation to methanol (biological gas-to-liquid process) using Methylotuvimicrobium buryatense 5GB1C 利用 Methylotuvimicrobium buryatense5GB1C 将甲烷发酵成甲醇（生物气变液工艺

Journal of advanced manufacturing and processing Pub Date : 2023-12-17 DOI: 10.1002/amp2.10172

Aradhana Priyadarsini, Kaustubh Chandrakant Khaire, Lepakshi Barbora, Subhrangsu Sundar Maitra, Vijayanand Suryakant Moholkar

{"title":"Methane fermentation to methanol (biological gas-to-liquid process) using Methylotuvimicrobium buryatense 5GB1C","authors":"Aradhana Priyadarsini, Kaustubh Chandrakant Khaire, Lepakshi Barbora, Subhrangsu Sundar Maitra, Vijayanand Suryakant Moholkar","doi":"10.1002/amp2.10172","DOIUrl":"10.1002/amp2.10172","url":null,"abstract":"Methanol is a potential alternate liquid transportation fuel for blending with gasoline. Biochemical conversion of methane to methanol is a green process for methanol production. This paper reports biochemical methanol production using type I γ-proteobacteria Methylotuvimicrobium buryatense, which has particular importance from the viewpoint of scalable biological gas to liquid processes for industrial application. A statistical design of experiments (at the serum bottle level) was used to optimize fermentation parameters. Enhancement in methanol accumulation was attempted using methanol dehydrogenase inhibitors. This was followed by a validation experiment run in a bioreactor at optimum conditions. At optimum conditions (pH = 7, phosphate concentration = 140 mM, temperature = 25°C) and optical density (600 nm) of 0.3, a methanol titer of 8.54 mM was achieved in 24 h (methane conversion = 20.8%). The addition of a methanol dehydrogenase inhibitor (0.5 mM Ethylenediaminetetraacetic acid) enhanced the methanol concentration to 10.37 mM. Experiments in a 3.7 L bioreactor using 1.68 bar headspace pressure and optical density (600 nm) of 0.1 yielded 23.7 mM methanol in 24 h (methane conversion = 47.8%). The methanol titers obtained using M. buryatense 5GB1C in 24 h fermentation are significantly higher than several previously reported methanotrophs. These results demonstrate the potential of M. buryatense 5GB1C for the biochemical synthesis of methanol.","PeriodicalId":87290,"journal":{"name":"Journal of advanced manufacturing and processing","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/amp2.10172","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138966019","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}

引用次数: 0

Development and evaluation of mixing mechanism of new transformable multiple impeller (AM impeller) 新型可变形多叶轮（AM叶轮）混合机构的研制与评价

Journal of advanced manufacturing and processing Pub Date : 2023-08-29 DOI: 10.1002/amp2.10170

Haruki Furukawa, Riki Takahashi, Anna Matsuoka, Yoshihito Kato, Shinsuke Asayama, Norihiro Morikawa, Seung-Tae Koh

引用次数: 0

The U.S. DOE's industrial decarbonization roadmap: How it helps industry find a way forward in delivering on promises to reduce greenhouse gas footprints 美国能源部的工业脱碳路线图:如何帮助工业找到实现减少温室气体足迹承诺的前进道路

Journal of advanced manufacturing and processing Pub Date : 2023-08-13 DOI: 10.1002/amp2.10168

Joseph B. Powell

引用次数: 0

Automated patterning of human brain endothelial cells on microstructures using a microfluidic manufacturing approach: An in vitro study 使用微流体制造方法在微结构上自动图案化人脑内皮细胞：一项体外研究

Journal of advanced manufacturing and processing Pub Date : 2023-08-13 DOI: 10.1002/amp2.10169

Saurabh S. Aykar, Lionel J. Ouedraogo, Isaac S. Petersen, Mychal J. Trznadel, Nima Alimoradi, Reza Montazami, Amanda L. Brockman, Nicole N. Hashemi

{"title":"Automated patterning of human brain endothelial cells on microstructures using a microfluidic manufacturing approach: An in vitro study","authors":"Saurabh S. Aykar, Lionel J. Ouedraogo, Isaac S. Petersen, Mychal J. Trznadel, Nima Alimoradi, Reza Montazami, Amanda L. Brockman, Nicole N. Hashemi","doi":"10.1002/amp2.10169","DOIUrl":"10.1002/amp2.10169","url":null,"abstract":"Barrier functionality of the blood–brain barrier (BBB) is provided by the tight junctions formed by a monolayer of the human brain endothelial cells (HBECs) internally around the blood capillaries. To mimic such barrier functionality in vitro, replicating the hollow tubular structure of the BBB along with the HBECs monolayer on its inner surface is crucial. Here, we developed a microfluidic manufacturing technique to pattern the HBECs on the surface of alginate-based microstructures. The HBECs were seeded on the inner surface of these hollow microfibers using a custom-built microfluidic device. The seeded HBECs were monitored for 9 days after manufacturing and cultured to form a monolayer on the inner surface of the alginate hollow microfibers in the maintenance media. A higher cell seeding density of 217 cells/mm length of the hollow microfiber was obtained using our microfluidic technique. Moreover, high accuracy of around 96% was obtained in seeding cells on the inner surface of alginate hollow microfibers. The microfluidic method illustrated in this study could be extrapolated to obtain a monolayer of different cell types on the inner surface of alginate hollow microfibers with cell-compatible ECM matrix proteins. Furthermore, it will enable us to manufacture a range of microvascular systems in vitro by closely replicating the structural attributes of the native structure.","PeriodicalId":87290,"journal":{"name":"Journal of advanced manufacturing and processing","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/amp2.10169","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48786471","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}

引用次数: 0