Pub Date : 2021-08-01DOI: 10.1016/j.cherd.2021.06.013
Chengwei Xu, Yan Yu, Xiaodong Si
{"title":"Oil-mists coalescence performance of fibrous filters with superoleophilic and superoleophobic surface","authors":"Chengwei Xu, Yan Yu, Xiaodong Si","doi":"10.1016/j.cherd.2021.06.013","DOIUrl":"https://doi.org/10.1016/j.cherd.2021.06.013","url":null,"abstract":"","PeriodicalId":9846,"journal":{"name":"Chemical Engineering Research and Design","volume":"74 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79279336","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 : 2021-08-01DOI: 10.1016/j.cherd.2021.06.010
Dongwoo Lee, Choi Juneun, Youn-Woo Lee, J. M. Lee
{"title":"Design and economic analysis of biodiesel production process of simultaneous supercritical transesterification and partial hydrogenation using soybean oil with Pd/Al2O3 catalyst","authors":"Dongwoo Lee, Choi Juneun, Youn-Woo Lee, J. M. Lee","doi":"10.1016/j.cherd.2021.06.010","DOIUrl":"https://doi.org/10.1016/j.cherd.2021.06.010","url":null,"abstract":"","PeriodicalId":9846,"journal":{"name":"Chemical Engineering Research and Design","volume":"17 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86854871","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 : 2021-08-01DOI: 10.1016/j.cherd.2021.06.015
M. Ruzicka, M. Puncochár, M. Šimčík
{"title":"From single bubble to global mixing: Added mass, drift, wake","authors":"M. Ruzicka, M. Puncochár, M. Šimčík","doi":"10.1016/j.cherd.2021.06.015","DOIUrl":"https://doi.org/10.1016/j.cherd.2021.06.015","url":null,"abstract":"","PeriodicalId":9846,"journal":{"name":"Chemical Engineering Research and Design","volume":"175 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78551384","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 : 2021-08-01DOI: 10.1016/j.cherd.2021.06.014
A. Tabeei, A. Keikhosravani, A. Samimi, D. Mohebbi-Kalhori, M. Zakeri
{"title":"Experimental evaluation of parameters affecting the coating performance of urea seeds in a prototype bottom external mixing spray two-fluid nozzle fluidized bed granulator","authors":"A. Tabeei, A. Keikhosravani, A. Samimi, D. Mohebbi-Kalhori, M. Zakeri","doi":"10.1016/j.cherd.2021.06.014","DOIUrl":"https://doi.org/10.1016/j.cherd.2021.06.014","url":null,"abstract":"","PeriodicalId":9846,"journal":{"name":"Chemical Engineering Research and Design","volume":"63 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88403663","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 : 2021-02-01DOI: 10.1016/j.cherd.2020.11.009
Fahim Abdullah, Zhe Wu, P. Christofides
{"title":"Data-based reduced-order modeling of nonlinear two-time-scale processes","authors":"Fahim Abdullah, Zhe Wu, P. Christofides","doi":"10.1016/j.cherd.2020.11.009","DOIUrl":"https://doi.org/10.1016/j.cherd.2020.11.009","url":null,"abstract":"","PeriodicalId":9846,"journal":{"name":"Chemical Engineering Research and Design","volume":"13 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87770125","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 : 2020-10-20DOI: 10.22541/au.160322442.23887989/v1
S. Shrikhande, G. Deshpande, A. N. Sawarkar, Z. Ahmad, D. Patle
In this study, new processes are designed for ultrasound assisted in situ algal biodiesel production using ionic liquid catalyst. Process retrofitting is then conducted using a divided-wall column (DWC) and multistage vapor recompression (MVR). Later, comparative analysis in terms of capital cost, cost of manufacturing (COM), cost of biodiesel, and carbon emission is presented. This study shows that the biodiesel cost is linearly dependent on the cost of feedstock and process economics can be improved by converting glycerol to triacetin. The process with DWC and MVR resulted in a significant saving in COM (13.84%), biodiesel cost (18.24%), utility cost (45.44%) and carbon emissions (45.84%) than those in its counterpart. New major contributions of this work are 1) process design for a novel ultrasound assisted and ionic liquid catalyzed algal biodiesel production, 2) implementation of DWC and MVR and 3) investigation of the uncertainty in the thermodynamic property.
{"title":"Design and Retrofitting of Ultrasound Intensified and Ionic Liquid Catalyzed In Situ Algal Biodiesel Production","authors":"S. Shrikhande, G. Deshpande, A. N. Sawarkar, Z. Ahmad, D. Patle","doi":"10.22541/au.160322442.23887989/v1","DOIUrl":"https://doi.org/10.22541/au.160322442.23887989/v1","url":null,"abstract":"In this study, new processes are designed for ultrasound assisted in situ algal biodiesel production using ionic liquid catalyst. Process retrofitting is then conducted using a divided-wall column (DWC) and multistage vapor recompression (MVR). Later, comparative analysis in terms of capital cost, cost of manufacturing (COM), cost of biodiesel, and carbon emission is presented. This study shows that the biodiesel cost is linearly dependent on the cost of feedstock and process economics can be improved by converting glycerol to triacetin. The process with DWC and MVR resulted in a significant saving in COM (13.84%), biodiesel cost (18.24%), utility cost (45.44%) and carbon emissions (45.84%) than those in its counterpart. New major contributions of this work are 1) process design for a novel ultrasound assisted and ionic liquid catalyzed algal biodiesel production, 2) implementation of DWC and MVR and 3) investigation of the uncertainty in the thermodynamic property.","PeriodicalId":9846,"journal":{"name":"Chemical Engineering Research and Design","volume":"29 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83510849","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}
Mohammed Mohammedalmojtaba, Lixing Lin, Georgeta M. Istratescu, T. Babadagli, A. Zadeh, M. Anderson, Chris Patterson
Heavy oil in reservoirs exists in the form of either water in heavy oil (w/ho) emulsions after primary production under water drive, or during secondary recovery methods such as water or steam injection. In many cases, the decision to apply any secondary or tertiary methods such as CO2 or CH4 injection depends on the understanding of the behavior of these gases in w/ho emulsions at reservoir conditions. Such an understanding can reduce the uncertainties in reservoir modeling by providing an adequate fluid model for reservoir simulation and history matching studies. In this paper, we focus on the interfacial properties, relative volume change, and PVT behavior of CO2 and CH4 in (w/ho) emulsions. We first generated the (w/ho) emulsion using steam at 150oC. Next, the stability of our emulsion was tested using different criteria such as phase separation, viscosity of the produced emulsion compared with that of the starting oil, and the size and number of water droplets in the continuous medium. The experiments were run using two types of heavy oils that are collected from two representative fields in eastern Alberta, type A oil (27,000 cP) and type B oil (4,351 cP). A sensitivity analysis was performed to determine the impact of different operational variables such as water content in the emulsion, water pH, and flow rate; additionally, the role of asphaltene and resin in emulsion stability was investigated. The influence of water content in the emulsion was found to be critical and thus subsequent IFT and relative volume measurements as well as PVT analyses were conducted using emulsions of different water contents with a vol.% range from 10-70. The results were compared with a dead oil (no water) case. Two types of gases typically used to improve recovery in Alberta were tested: CO2 and CH4. IFT and volume measurements indicate the existence of critical water content which dramatically changes the behavior of the system; generally, emulsions with water content below this critical value exhibit lower IFT than the original oil, and the IFT falls steadily as the water content increases. The trend is reversed when the water content exceeds the critical value and IFT starts increasing before it stabilizes. This process happens when the water content reaches a vol.% higher than 50; however, it remains below that of the original oil. Regarding volume ratio, there seems to be a clear relationship between pressure and volume ratio of the emulsion and CO2 system. Overall, volume ratio increases as pressure increases regardless of water content. In general, for experiments run with CO2, data suggests that water content affects the rate of expansion, but ultimately the final volume ratio remains the same. The results of this work are significant in that they indicate the phase behavior of w/ho emulsions, and that CO2 and CH4 can vary considerably depending on the composition of oil and water content in the system. IFT, relative volume, and PVT measurement
{"title":"Underlying physics of heavy oil recovery by gas injection: An experimental parametric analysis when oil exists in the form of oil based emulsion","authors":"Mohammed Mohammedalmojtaba, Lixing Lin, Georgeta M. Istratescu, T. Babadagli, A. Zadeh, M. Anderson, Chris Patterson","doi":"10.2118/199966-ms","DOIUrl":"https://doi.org/10.2118/199966-ms","url":null,"abstract":"\u0000 Heavy oil in reservoirs exists in the form of either water in heavy oil (w/ho) emulsions after primary production under water drive, or during secondary recovery methods such as water or steam injection. In many cases, the decision to apply any secondary or tertiary methods such as CO2 or CH4 injection depends on the understanding of the behavior of these gases in w/ho emulsions at reservoir conditions. Such an understanding can reduce the uncertainties in reservoir modeling by providing an adequate fluid model for reservoir simulation and history matching studies. In this paper, we focus on the interfacial properties, relative volume change, and PVT behavior of CO2 and CH4 in (w/ho) emulsions.\u0000 We first generated the (w/ho) emulsion using steam at 150oC. Next, the stability of our emulsion was tested using different criteria such as phase separation, viscosity of the produced emulsion compared with that of the starting oil, and the size and number of water droplets in the continuous medium. The experiments were run using two types of heavy oils that are collected from two representative fields in eastern Alberta, type A oil (27,000 cP) and type B oil (4,351 cP). A sensitivity analysis was performed to determine the impact of different operational variables such as water content in the emulsion, water pH, and flow rate; additionally, the role of asphaltene and resin in emulsion stability was investigated. The influence of water content in the emulsion was found to be critical and thus subsequent IFT and relative volume measurements as well as PVT analyses were conducted using emulsions of different water contents with a vol.% range from 10-70. The results were compared with a dead oil (no water) case. Two types of gases typically used to improve recovery in Alberta were tested: CO2 and CH4.\u0000 IFT and volume measurements indicate the existence of critical water content which dramatically changes the behavior of the system; generally, emulsions with water content below this critical value exhibit lower IFT than the original oil, and the IFT falls steadily as the water content increases. The trend is reversed when the water content exceeds the critical value and IFT starts increasing before it stabilizes. This process happens when the water content reaches a vol.% higher than 50; however, it remains below that of the original oil. Regarding volume ratio, there seems to be a clear relationship between pressure and volume ratio of the emulsion and CO2 system. Overall, volume ratio increases as pressure increases regardless of water content. In general, for experiments run with CO2, data suggests that water content affects the rate of expansion, but ultimately the final volume ratio remains the same.\u0000 The results of this work are significant in that they indicate the phase behavior of w/ho emulsions, and that CO2 and CH4 can vary considerably depending on the composition of oil and water content in the system. IFT, relative volume, and PVT measurement","PeriodicalId":9846,"journal":{"name":"Chemical Engineering Research and Design","volume":"56 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90991790","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 : 2020-08-31DOI: 10.22541/au.159884105.56132261
Qingfeng Wang, Tao Chen, P. Bai, Jiafei Lyu, Xianghai Guo
Fe3O4-loaded ion exchange resin composites (Fe3O4@Resin) were optimally constructed through ion exchange and co-precipitation of Fe2+ and Fe3+ on strong acid ion exchange resin. The as-synthesized Fe3O4@Resin composite was sophisticatedly characterized and investigated for 10B/11B separation including effect of pH, kinetics and isotherms through batch adsorption experiments which can be well described by pseudo-second order kinetics and Langmuir model. In the chromatographic column packed with Fe3O4@Resin, 10B was selectively retained with a high dynamic separation factor of 1.312. Considering the consistency between simulated and experimental breakthrough curves within Fe3O4@Resin packed column, chromatographic 10B/11B separation performance was simulated under various conditions which were further optimized by Box-Behnken design. Consequently, the annual yield of 10B reached the maximum of 612 g with feed concentration of 7.567 g·L−1, flow rate of 38.57 mL·min−1, and column size of 2.2×45 cm (I.D. × length). In addition, five-cycle adsorption/regeneration experiments demonstrated its merit of reusability.
{"title":"Fe3O4-loaded Ion Exchange Resin for Chromatographic Separation of Boron Isotopes: Experiment and Numerical Simulation","authors":"Qingfeng Wang, Tao Chen, P. Bai, Jiafei Lyu, Xianghai Guo","doi":"10.22541/au.159884105.56132261","DOIUrl":"https://doi.org/10.22541/au.159884105.56132261","url":null,"abstract":"Fe3O4-loaded ion exchange resin composites (Fe3O4@Resin) were optimally\u0000constructed through ion exchange and co-precipitation of Fe2+ and Fe3+\u0000on strong acid ion exchange resin. The as-synthesized Fe3O4@Resin\u0000composite was sophisticatedly characterized and investigated for 10B/11B\u0000separation including effect of pH, kinetics and isotherms through batch\u0000adsorption experiments which can be well described by pseudo-second\u0000order kinetics and Langmuir model. In the chromatographic column packed\u0000with Fe3O4@Resin, 10B was selectively retained with a high dynamic\u0000separation factor of 1.312. Considering the consistency between\u0000simulated and experimental breakthrough curves within Fe3O4@Resin packed\u0000column, chromatographic 10B/11B separation performance was simulated\u0000under various conditions which were further optimized by Box-Behnken\u0000design. Consequently, the annual yield of 10B reached the maximum of 612\u0000g with feed concentration of 7.567 g·L−1, flow rate of 38.57 mL·min−1,\u0000and column size of 2.2×45 cm (I.D. × length). In addition, five-cycle\u0000adsorption/regeneration experiments demonstrated its merit of\u0000reusability.","PeriodicalId":9846,"journal":{"name":"Chemical Engineering Research and Design","volume":"44 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88282366","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 : 2020-01-09DOI: 10.26434/chemrxiv.11536962.v1
M. Regadío, N. K. Batchu, K. Binnemans
Diluent plays an important role in the solvent extraction of metals. The selection of a proper diluent is important since it affects the economics of the process. The effect of different diluents (aliphatic, mixed aliphatic-aromatic and aromatic) on the solvent extraction of Nd(III) by the neutral extractant tri-n-butylphosphate (TBP) from nitrate aqueous feed solutions was studied with variation of the following process parameters: extraction kinetics, phase disengagement time, TBP concentration, nitrate concentration, loading capacity of TBP and aqueous-to-organic phase volume ratio. The present study shows that the nature of the diluent has no effect on the extraction kinetics of Nd(III) by TBP. Phase disengagement times were relatively faster for aromatic diluents compared to aliphatic diluents. Conversely, extraction efficiencies were the highest for aliphatic diluents, slightly lower for mixed aliphatic-aromatic diluents and much lower for aromatic diluents. The poorer extraction efficiencies of aromatic diluents may be due to the lower concentration of free extractant as a result of the stronger interactions of the diluent with water and/or of the diluent with the extractant. The differences in extraction performance between aliphatic and aromatic diluents decrease with increasing nitrate concentration in the aqueous feed solution. Thus, the negative effect on the extraction of the aromatics in the diluent can be compensated by the positive effect of a higher concentration of salting-out nitrate ions in the feed. The present results reveal that the selection of the diluent can be preferably based on its cost, safety and biodegradability rather than on its physico-chemical properties, since the physico-chemical properties have a limited influence on the extraction of Nd(III) by TBP at highly concentrated nitrate solutions.
{"title":"Selection criteria of diluents of tri-n-butyl phosphate for recovering neodymium(III) from nitrate solutions","authors":"M. Regadío, N. K. Batchu, K. Binnemans","doi":"10.26434/chemrxiv.11536962.v1","DOIUrl":"https://doi.org/10.26434/chemrxiv.11536962.v1","url":null,"abstract":"Diluent\u0000plays an important role in the solvent extraction of metals. The selection of a\u0000proper diluent is important since it affects the economics of the process. The\u0000effect of different diluents (aliphatic, mixed aliphatic-aromatic and aromatic)\u0000on the solvent extraction of Nd(III) by the neutral extractant tri-n-butylphosphate (TBP) from nitrate aqueous\u0000feed solutions was studied with variation of the following process parameters:\u0000extraction kinetics, phase disengagement time, TBP concentration, nitrate\u0000concentration, loading capacity of TBP and aqueous-to-organic phase volume\u0000ratio. The present study shows that the nature of the diluent has no effect on the\u0000extraction kinetics of Nd(III) by TBP. Phase disengagement times were\u0000relatively faster for aromatic diluents compared to aliphatic diluents.\u0000Conversely, extraction efficiencies were the highest for aliphatic diluents, slightly\u0000lower for mixed aliphatic-aromatic diluents and much lower for aromatic\u0000diluents. The poorer extraction efficiencies of aromatic diluents may be due to\u0000the lower concentration of free extractant as a result of the stronger\u0000interactions of the diluent with water and/or of the diluent with the\u0000extractant. The differences in extraction performance between aliphatic and\u0000aromatic diluents decrease with increasing nitrate concentration in the aqueous\u0000feed solution. Thus, the negative\u0000effect on the extraction of the aromatics in the diluent can be compensated by\u0000the positive effect of a higher concentration of salting-out nitrate ions in\u0000the feed. The present results reveal that the\u0000selection of the diluent can be preferably based on its cost, safety and\u0000biodegradability rather than on its physico-chemical properties, since the\u0000physico-chemical properties have a limited influence on the extraction of\u0000Nd(III) by TBP at highly concentrated nitrate solutions.","PeriodicalId":9846,"journal":{"name":"Chemical Engineering Research and Design","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88400084","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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