首页 > 最新文献

The Open Chemical Engineering Journal最新文献

英文 中文
Experimental Study of CO2 Absorption in Potassium Carbonate Solution Promoted by Triethylenetetramine 三乙烯四胺促进碳酸钾溶液中CO2吸收的实验研究
Pub Date : 2018-05-25 DOI: 10.2174/1874123101812010067
Rouzbeh Ramezani, S. Mazinani, R. Felice
Received: February 20, 2018 Revised: April 3, 2018 Accepted: April 21, 2018 Abstract: Background: Separation of CO 2 as the major cause of global warming is essential. In this work, potassium carbonate (K 2 CO 3 ) solution was selected as a base solvent for CO 2 absorption due to its ease of regeneration energy, low cost and low environmental impact. However, the absorption rate of CO 2 with K 2 CO 3 needs to be improved by adding a suitable promoter. Therefore, the performance of CO 2 in K 2 CO 3 solution promoted by triethylenetetramine (TETA) in terms of absorption capacity and absorption rate of CO2 was studied.
收稿日期:2018年2月20日修稿日期:2018年4月3日收稿日期:2018年4月21日摘要:背景:分离二氧化碳作为全球变暖的主要原因是必要的。本研究选择碳酸钾(k2co3)溶液作为吸收co2的基础溶剂,因为它易于再生,成本低,对环境影响小。但是,k2co3对co2的吸附速率需要通过添加合适的促进剂来提高。因此,研究了三乙基四胺(TETA)在k2co3溶液中对CO2的吸收能力和吸收率。
{"title":"Experimental Study of CO2 Absorption in Potassium Carbonate Solution Promoted by Triethylenetetramine","authors":"Rouzbeh Ramezani, S. Mazinani, R. Felice","doi":"10.2174/1874123101812010067","DOIUrl":"https://doi.org/10.2174/1874123101812010067","url":null,"abstract":"Received: February 20, 2018 Revised: April 3, 2018 Accepted: April 21, 2018 Abstract: Background: Separation of CO 2 as the major cause of global warming is essential. In this work, potassium carbonate (K 2 CO 3 ) solution was selected as a base solvent for CO 2 absorption due to its ease of regeneration energy, low cost and low environmental impact. However, the absorption rate of CO 2 with K 2 CO 3 needs to be improved by adding a suitable promoter. Therefore, the performance of CO 2 in K 2 CO 3 solution promoted by triethylenetetramine (TETA) in terms of absorption capacity and absorption rate of CO2 was studied.","PeriodicalId":22933,"journal":{"name":"The Open Chemical Engineering Journal","volume":"32 1","pages":"67-79"},"PeriodicalIF":0.0,"publicationDate":"2018-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87408296","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: 7
Selectivity Modeling of Synthesis Gas Reaction over the Iron Catalyst and Optimization Products 铁催化剂上合成气反应的选择性模拟及优化产物
Pub Date : 2018-04-30 DOI: 10.2174/1874123101812010057
H. Atashi, Somayyeh Veiskarami
Materials & Methods: The Fischer-Tropsch Process is one of these technologies. In this catalytic process, a lot of products are produced, therefore, it is always steered to the production of favorable products. For this reason, in order to predict the performance of iron-based catalysts, based on the three factors;pressure, temperature and H2/CO ratio, the selectivity models for the products were obtained. Then, the best possible conditions for the highest production of hydrocarbons were calculated which are used in the designing of engineering equipment.
材料与方法:费托法就是其中一种技术。在这个催化过程中,产生了大量的产物,因此,它总是被导向产生有利的产物。为此,为了预测铁基催化剂的性能,基于压力、温度和H2/CO比三个因素,建立了产物的选择性模型。在此基础上,计算出了油气产量最高的最佳条件,为工程设备的设计提供了依据。
{"title":"Selectivity Modeling of Synthesis Gas Reaction over the Iron Catalyst and Optimization Products","authors":"H. Atashi, Somayyeh Veiskarami","doi":"10.2174/1874123101812010057","DOIUrl":"https://doi.org/10.2174/1874123101812010057","url":null,"abstract":"Materials & Methods: The Fischer-Tropsch Process is one of these technologies. In this catalytic process, a lot of products are produced, therefore, it is always steered to the production of favorable products. For this reason, in order to predict the performance of iron-based catalysts, based on the three factors;pressure, temperature and H2/CO ratio, the selectivity models for the products were obtained. Then, the best possible conditions for the highest production of hydrocarbons were calculated which are used in the designing of engineering equipment.","PeriodicalId":22933,"journal":{"name":"The Open Chemical Engineering Journal","volume":"41 1","pages":"57-66"},"PeriodicalIF":0.0,"publicationDate":"2018-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72782707","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
Chemical Kinetics of Alkaline Pretreatment of Napier Grass (Pennisetum purpureum) Prior Enzymatic Hydrolysis 紫荆草酶解前碱性预处理的化学动力学研究
Pub Date : 2018-04-30 DOI: 10.2174/1874123101812010036
S. Sanni, O. Akinrinola, E. O. Yusuf, O. Fagbiele, O. Agboola
Background: Napier grass is a naturally abundant waste material that can be cultivated over a vast area of land which makes it a viable source for sugar and bioethanol production. Introduction: The presence of lignin in the biomass makes cellulose inaccessible for conversion to useful products, however, in order to provide for efficient utilization of the waste material, reagent and energy, a study on the kinetics of lignin removal from Napier grass was carried out in this work using 1 and 3 w/w % NaOH at temperatures between 80 and 120°C. Materials & Methods: Based on the investigation, there was increased lignin removal for increased NaOH concentration. Kinetic parameters were also determined and it was observed that, the reaction of lignin in Napier grass with NaOH obeys a pseudo-zero or pseudo-fractional order kinetics. Furthermore, the orders of the reaction for the pretreatment conditions of 3 w/w% NaOH at 100°C and those of 3 and 1 w/w NaOH at 120°C gave close reaction orders of 0.2, 0.22 and 0.24 respectively after 110 minutes, which implies that, for the three cases, the residual lignin in the extract was almost the same at the pretreatment conditions while slight differences are evident in their pseudo rate constants. Also, it was observed that, the activation energy of the reaction reduced significantly as the concentration of NaOH increased from 1w/w - 3 w/w%. Conclusion: Based on the AIL and the total lignin (i.e. AIL + ASL) in the Napier grass, the recorded delignification efficiencies at the optimum pretreatment time of 17.5 h are 90 and 76% respectively. In addition, the adopted Differential Technique (DT) combined with the Ostwald Method of Isolation (OMI) can be accurately used to study the kinetics of lignin removal from Napier grass.
背景:纳皮尔草是一种天然丰富的废弃物,可以在大面积的土地上种植,这使它成为糖和生物乙醇生产的可行来源。生物质中木质素的存在使得纤维素无法转化为有用的产品,然而,为了提供有效利用废料,试剂和能源,本研究在80至120°C的温度下,使用1和3 w/w的NaOH对纳皮草中木质素的去除动力学进行了研究。材料与方法:通过研究发现,随着NaOH浓度的增加,木质素去除率提高。测定了木质素与NaOH的反应动力学参数,发现木质素与NaOH的反应服从伪零级或伪分数级动力学。此外,100°C条件下3 w/w NaOH和120°C条件下3 w/w NaOH和1 w/w NaOH预处理110 min后的反应级数相近,分别为0.2、0.22和0.24,说明在3种预处理条件下,提取液中残留木质素的级数基本相同,但其伪速率常数略有差异。NaOH浓度从1w/w增加到3w /w%,反应活化能显著降低。结论:以naier草的AIL和总木质素(即AIL + ASL)为指标,在17.5 h的最佳预处理时间下,记录的脱木质素效率分别为90%和76%。此外,采用差分技术(DT)结合奥斯特瓦尔德分离法(OMI)可以准确地研究纳皮草木质素去除动力学。
{"title":"Chemical Kinetics of Alkaline Pretreatment of Napier Grass (Pennisetum purpureum) Prior Enzymatic Hydrolysis","authors":"S. Sanni, O. Akinrinola, E. O. Yusuf, O. Fagbiele, O. Agboola","doi":"10.2174/1874123101812010036","DOIUrl":"https://doi.org/10.2174/1874123101812010036","url":null,"abstract":"Background: \u0000Napier grass is a naturally abundant waste material that can be cultivated over a vast area of land which makes it a viable source for sugar and bioethanol production. \u0000Introduction: \u0000The presence of lignin in the biomass makes cellulose inaccessible for conversion to useful products, however, in order to provide for efficient utilization of the waste material, reagent and energy, a study on the kinetics of lignin removal from Napier grass was carried out in this work using 1 and 3 w/w % NaOH at temperatures between 80 and 120°C. \u0000Materials & Methods: \u0000Based on the investigation, there was increased lignin removal for increased NaOH concentration. Kinetic parameters were also determined and it was observed that, the reaction of lignin in Napier grass with NaOH obeys a pseudo-zero or pseudo-fractional order kinetics. Furthermore, the orders of the reaction for the pretreatment conditions of 3 w/w% NaOH at 100°C and those of 3 and 1 w/w NaOH at 120°C gave close reaction orders of 0.2, 0.22 and 0.24 respectively after 110 minutes, which implies that, for the three cases, the residual lignin in the extract was almost the same at the pretreatment conditions while slight differences are evident \u0000in their pseudo rate constants. Also, it was observed that, the activation energy of the reaction reduced significantly as the concentration of NaOH increased from 1w/w - 3 w/w%. \u0000Conclusion: \u0000Based on the AIL and the total lignin (i.e. AIL + ASL) in the Napier grass, the recorded delignification efficiencies at the optimum pretreatment time of 17.5 h are 90 and 76% respectively. In addition, the adopted Differential Technique (DT) combined with the Ostwald Method of Isolation (OMI) can be accurately used to study the kinetics of lignin removal from Napier grass.","PeriodicalId":22933,"journal":{"name":"The Open Chemical Engineering Journal","volume":"56 1","pages":"36-56"},"PeriodicalIF":0.0,"publicationDate":"2018-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88664900","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: 1
Pyrene and Chrysene Tolerance and Biodegradation Capability of Pleurotus Sajor-Caju 杏鲍菇对芘、芘的耐受性及生物降解能力
Pub Date : 2018-04-23 DOI: 10.2174/1874123101812010024
G. Saiu, S. Tronci, M. Grosso, Enzo Cadoni, Nicoletta Curreli
Dipartimento di Ingegneria Meccanica, Chimica e dei Materiali, Università degli Studi di Cagliari, i.e.Marengo 2, 09123 Cagliari, Italy Dipartimento di Scienze Biomediche, Unità di Biochimica, Università degli Studi di Cagliari, Cittadella Universitaria, 09042 Monserrato, Cagliari, Italy Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, Cittadella Universitaria, 09042 Monserrato, Cagliari, Italy
机械工程系、化学和材料,universita degli Studi di卡利亚里,2 . e . Marengo 09123卡利亚里,意大利生物医学科学系、生物化学、单位universita degli Studi di卡利亚里大学,城堡,09042 Monserrato、卡利亚里、意大利化学和地质科学系大学universita degli Studi di卡利亚里,城堡,09042 Monserrato、卡利亚里、意大利
{"title":"Pyrene and Chrysene Tolerance and Biodegradation Capability of Pleurotus Sajor-Caju","authors":"G. Saiu, S. Tronci, M. Grosso, Enzo Cadoni, Nicoletta Curreli","doi":"10.2174/1874123101812010024","DOIUrl":"https://doi.org/10.2174/1874123101812010024","url":null,"abstract":"Dipartimento di Ingegneria Meccanica, Chimica e dei Materiali, Università degli Studi di Cagliari, i.e.Marengo 2, 09123 Cagliari, Italy Dipartimento di Scienze Biomediche, Unità di Biochimica, Università degli Studi di Cagliari, Cittadella Universitaria, 09042 Monserrato, Cagliari, Italy Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, Cittadella Universitaria, 09042 Monserrato, Cagliari, Italy","PeriodicalId":22933,"journal":{"name":"The Open Chemical Engineering Journal","volume":"767 1","pages":"24-35"},"PeriodicalIF":0.0,"publicationDate":"2018-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77525731","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: 4
Kinetics of Decomposition Reactions of Acetic Acid Using DFT Approach 醋酸分解反应动力学的DFT方法研究
Pub Date : 2018-02-08 DOI: 10.2174/1874123101812010014
A. Verma, N. Kishore
Excessive amount of oxygen content in unprocessed bio-oil deteriorates the quality of bio-oil which cannot be used in transportation vehicles without upgrading. Acetic acid (CH3COOH) is a vital component of ‘acids’ catalogue of unprocessed bio-oil produced from thermochemical conversions of most of biomass feedstocks such as switchgrass, alfalfa, etc. In this study, the decomposition reactions of acetic acid are carried out by two reaction pathways, i.e., decarboxylation and dehydration reactions. In addition, the reaction rates of decomposition are analysed in a wide range of temperatures, i.e., 298-900 K and at atmospheric pressure.
未经加工的生物油中含氧量过高会使生物油的质量恶化,不进行改造就不能用于运输车辆。醋酸(CH3COOH)是由大多数生物质原料(如柳枝稷、苜蓿等)的热化学转化产生的未加工生物油的“酸”目录的重要组成部分。在本研究中,乙酸的分解反应通过脱羧反应和脱水反应两种反应途径进行。此外,还分析了在较宽温度范围内(即298-900 K)和常压下的分解反应速率。
{"title":"Kinetics of Decomposition Reactions of Acetic Acid Using DFT Approach","authors":"A. Verma, N. Kishore","doi":"10.2174/1874123101812010014","DOIUrl":"https://doi.org/10.2174/1874123101812010014","url":null,"abstract":"Excessive amount of oxygen content in unprocessed bio-oil deteriorates the quality of bio-oil which cannot be used in transportation vehicles without upgrading. Acetic acid (CH3COOH) is a vital component of ‘acids’ catalogue of unprocessed bio-oil produced from thermochemical conversions of most of biomass feedstocks such as switchgrass, alfalfa, etc. In this study, the decomposition reactions of acetic acid are carried out by two reaction pathways, i.e., decarboxylation and dehydration reactions. In addition, the reaction rates of decomposition are analysed in a wide range of temperatures, i.e., 298-900 K and at atmospheric pressure.","PeriodicalId":22933,"journal":{"name":"The Open Chemical Engineering Journal","volume":"52 1","pages":"14-23"},"PeriodicalIF":0.0,"publicationDate":"2018-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80374237","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: 10
Determination of Migration of Six Phthalate Esters in Plastic Toys by GC-MS/MS Coupled with Solid-Phase Extraction Using Cucurbit[n]urils as Adsorbent 采用固相萃取-气相色谱-质谱联用法测定6种邻苯二甲酸酯在塑料玩具中的迁移
Pub Date : 2017-10-31 DOI: 10.2174/1874123101711010053
Q. Lv, Liu Haiyu, Zhijuan Wang, H. Bai, Qing Zhang
Method: On the base of self-made migration device, toy samples were migrated for 10 min to 24 h in simulated saliva at 37 °C. The analytes were adsorbed by cucurbiturils SPE cartridges, eluted with ethyl acetate, then determined by GC-MS/MS and quantified by external standard method. The eluting solvents as well as the type and amount of the extraction materials were carefully optimized, then the reusability of the SPE cartridges was investigated. The limits of quantification (LOQs) ranged from 2.5 μg/L to 12.5 μg/L. Average recoveries of target analytes (spiked at three concentration levels) were in the range of 82.7% to 94.4%. Intraday repeatability and interday repeatability of the method varied from 2.3% to 6.6% and from 5.6% to 10.8%, respectively.
方法:在自制迁移装置的基础上,玩具样品在37℃模拟唾液中迁移10 min ~ 24 h。用葫芦酚类固相萃取筒吸附,乙酸乙酯洗脱,GC-MS/MS测定,外标法定量。对萃取溶剂、萃取材料的种类和用量进行了优化,考察了固相萃取筒的可重复使用性。定量限范围为2.5 ~ 12.5 μg/L。在三种浓度水平下,目标分析物的平均加标回收率为82.7% ~ 94.4%。日内重复性为2.3% ~ 6.6%,日内重复性为5.6% ~ 10.8%。
{"title":"Determination of Migration of Six Phthalate Esters in Plastic Toys by GC-MS/MS Coupled with Solid-Phase Extraction Using Cucurbit[n]urils as Adsorbent","authors":"Q. Lv, Liu Haiyu, Zhijuan Wang, H. Bai, Qing Zhang","doi":"10.2174/1874123101711010053","DOIUrl":"https://doi.org/10.2174/1874123101711010053","url":null,"abstract":"Method: On the base of self-made migration device, toy samples were migrated for 10 min to 24 h in simulated saliva at 37 °C. The analytes were adsorbed by cucurbiturils SPE cartridges, eluted with ethyl acetate, then determined by GC-MS/MS and quantified by external standard method. The eluting solvents as well as the type and amount of the extraction materials were carefully optimized, then the reusability of the SPE cartridges was investigated. The limits of quantification (LOQs) ranged from 2.5 μg/L to 12.5 μg/L. Average recoveries of target analytes (spiked at three concentration levels) were in the range of 82.7% to 94.4%. Intraday repeatability and interday repeatability of the method varied from 2.3% to 6.6% and from 5.6% to 10.8%, respectively.","PeriodicalId":22933,"journal":{"name":"The Open Chemical Engineering Journal","volume":"31 1","pages":"53-62"},"PeriodicalIF":0.0,"publicationDate":"2017-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78162639","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: 2
Depressurization System by Coiled Pipes Applied to a High Pressure Process: Experimental Results and Modeling 应用于高压过程的螺旋管减压系统:实验结果和模型
Pub Date : 2017-07-28 DOI: 10.2174/1874123101711010017
J. Benjumea, J. Sánchez-Oneto, J. R. Portela, E. M. Ossa
Received: February 10, 2017 Revised: May 24, 2017 Accepted: June 02, 2017 Abstract: Background: The use of backpressure regulator valves is widespread in high-pressure processes both at laboratory and pilot plant scales, but being a single step for effluent depressurization, such valves may have some limitations at industrial scale. In an effort to improve the depressurization step, this work studies a system based on the pressure drop of a fluid that circulates through coiled pipes.
摘要:背景:在实验室和中试工厂规模的高压过程中,背压调节阀的使用是广泛的,但作为污水减压的单一步骤,这种阀门在工业规模上可能存在一些局限性。为了改进降压步骤,本工作研究了一种基于流体在螺旋管中循环的压降的系统。
{"title":"Depressurization System by Coiled Pipes Applied to a High Pressure Process: Experimental Results and Modeling","authors":"J. Benjumea, J. Sánchez-Oneto, J. R. Portela, E. M. Ossa","doi":"10.2174/1874123101711010017","DOIUrl":"https://doi.org/10.2174/1874123101711010017","url":null,"abstract":"Received: February 10, 2017 Revised: May 24, 2017 Accepted: June 02, 2017 Abstract: Background: The use of backpressure regulator valves is widespread in high-pressure processes both at laboratory and pilot plant scales, but being a single step for effluent depressurization, such valves may have some limitations at industrial scale. In an effort to improve the depressurization step, this work studies a system based on the pressure drop of a fluid that circulates through coiled pipes.","PeriodicalId":22933,"journal":{"name":"The Open Chemical Engineering Journal","volume":"144 1","pages":"17-32"},"PeriodicalIF":0.0,"publicationDate":"2017-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78164579","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
Flotation of Chromite as Pre-Treatment of Olivine Before Carbonation for CO2 Sequestration 铬铁矿浮选作为橄榄石碳酸化前的前处理封存CO2
Pub Date : 2017-07-21 DOI: 10.2174/1874123101711010001
Laura Turri, H. Muhr, Cristielen Rech, F. Lapicque
{"title":"Flotation of Chromite as Pre-Treatment of Olivine Before Carbonation for CO2 Sequestration","authors":"Laura Turri, H. Muhr, Cristielen Rech, F. Lapicque","doi":"10.2174/1874123101711010001","DOIUrl":"https://doi.org/10.2174/1874123101711010001","url":null,"abstract":"","PeriodicalId":22933,"journal":{"name":"The Open Chemical Engineering Journal","volume":"84 1","pages":"1-16"},"PeriodicalIF":0.0,"publicationDate":"2017-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89604461","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: 2
Flow Simulation in a 2D Bubble Column with the Euler-lagrange and Euler-euler Method 用欧拉-拉格朗日和欧拉-欧拉方法模拟二维气泡柱内流动
Pub Date : 2017-06-19 DOI: 10.2174/1874123101812010001
A. Weber, H. Bart
Bubbly flows, as present in bubble column reactors, can be simulated using a variety of simulation techniques. In order to gain high resolution CFD methods are used to simulate a pseudo 2D bubble column using EL and EE techniques. The forces on bubble dynamics are solved within open access software OpenFOAM with bubble interactions computed via Monte Carlo methods. The estimated bubble size distribution and the predicted hold-up are compared to experimental data and other simulative work using EE approach and show reasonable consensus for both. Benchmarks with state of the art EE simulations shows that the EL approach is advantageous if the bubble number stays at a certain level, as the EL approach scales linearly with the number of bubbles simulated. Therefore, different computational meshes have been used to also account for influence of the resolution quality. The EL approach indicated faster solution for all realistic cases, only deliberate decrease of coalescence rates could push CPU time to the limits. Critical bubble number - when EE becomes advantageous over the EL approach - was estimated to be 40.000 in this particular case.
泡塔反应器中的气泡流动可以用多种模拟技术进行模拟。为了获得高分辨率,采用CFD方法,利用EL和EE技术模拟了一个伪二维气泡柱。在开放存取软件OpenFOAM中求解气泡动力学力,并通过蒙特卡罗方法计算气泡相互作用。将估计的气泡大小分布和预测的占空率与实验数据和使用EE方法的其他模拟工作进行了比较,并显示了两者的合理一致性。使用最先进的EE模拟的基准测试表明,如果气泡数量保持在一定水平,EL方法是有利的,因为EL方法随着模拟的气泡数量线性扩展。因此,采用不同的计算网格来考虑分辨率质量的影响。EL方法对所有实际情况都有更快的解决方案,只有故意降低合并率才能将CPU时间推到极限。在这种特殊情况下,临界气泡数——当EE比EL方法更有利时——估计为40000。
{"title":"Flow Simulation in a 2D Bubble Column with the Euler-lagrange and Euler-euler Method","authors":"A. Weber, H. Bart","doi":"10.2174/1874123101812010001","DOIUrl":"https://doi.org/10.2174/1874123101812010001","url":null,"abstract":"Bubbly flows, as present in bubble column reactors, can be simulated using a variety of simulation techniques. In order to gain high resolution CFD methods are used to simulate a pseudo 2D bubble column using EL and EE techniques. The forces on bubble dynamics are solved within open access software OpenFOAM with bubble interactions computed via Monte Carlo methods. The estimated bubble size distribution and the predicted hold-up are compared to experimental data and other simulative work using EE approach and show reasonable consensus for both. Benchmarks with state of the art EE simulations shows that the EL approach is advantageous if the bubble number stays at a certain level, as the EL approach scales linearly with the number of bubbles simulated. Therefore, different computational meshes have been used to also account for influence of the resolution quality. The EL approach indicated faster solution for all realistic cases, only deliberate decrease of coalescence rates could push CPU time to the limits. Critical bubble number - when EE becomes advantageous over the EL approach - was estimated to be 40.000 in this particular case.","PeriodicalId":22933,"journal":{"name":"The Open Chemical Engineering Journal","volume":"8 1","pages":"1-13"},"PeriodicalIF":0.0,"publicationDate":"2017-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78546006","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: 11
Pressure equalization step between a packed bed and an empty tank in Pressure Swing Adsorption cycles 变压吸附循环中填料床和空槽之间的压力均衡步骤
Pub Date : 2017-06-12 DOI: 10.2174/1874123101711010033
M. Chahbani, D. Tondeur, R. Talmoudi, A. Abdeljaoued
RESEARCH ARTICLE Modeling and Simulation of Pressure Equalization Step Between a Packed Bed and an Empty Tank in Pressure Swing Adsorption Cycles Mohamed Hachemi Chahbani, R. Talmoudi, Amna Abdel Jaoued and D. Tondeur Institut Supérieur des Sciences Appliquées et de Technologie de Gabès, Université de Gabès, Rue Omar Ibn Elkhattab, Zrig, Tunisia Laboratoire Génie des procédés et systèmes industriels (LR11ES54), Université de Gabès, Rue Omar Ibn Elkhattab, Zrig, Gabès 6029, Tunisia Ecole Nationale d'Ingénieurs de Gabès, Université de Gabès, Rue Omar Ibn Elkhattab, Zrig, Gabès 6029, Tunisia Laboratoire Réactions et Génie des Procédés, CNRS et Université de Lorraine, ENSIC, 1 Rue Grandville54000 Nancy France
建模与仿真of RESEARCH篇压力Equalization Between a Step in an玩纸牌Tank包装的床和压力Swing吸附周期穆罕默德·查拉Chahbani、r . Talmoudi Amna Abdel Jaoued and d . Tondeur高等学院的应用科学和技术大学贝斯贝斯、奥马尔·伊本·Elkhattab街Zrig,突尼斯的工业流程和系统工程实验室(LR11ES54),贝斯大学、奥马尔·伊本·Elkhattab Zrig街、加贝斯。突尼斯国家工程学院gabes, gabes大学,Rue Omar Ibn Elkhattab, Zrig, gabes 6029,突尼斯反应和过程工程实验室,CNRS和洛林大学,ENSIC, 1 Rue Grandville54000 Nancy France
{"title":"Pressure equalization step between a packed bed and an empty tank in Pressure Swing Adsorption cycles","authors":"M. Chahbani, D. Tondeur, R. Talmoudi, A. Abdeljaoued","doi":"10.2174/1874123101711010033","DOIUrl":"https://doi.org/10.2174/1874123101711010033","url":null,"abstract":"RESEARCH ARTICLE Modeling and Simulation of Pressure Equalization Step Between a Packed Bed and an Empty Tank in Pressure Swing Adsorption Cycles Mohamed Hachemi Chahbani, R. Talmoudi, Amna Abdel Jaoued and D. Tondeur Institut Supérieur des Sciences Appliquées et de Technologie de Gabès, Université de Gabès, Rue Omar Ibn Elkhattab, Zrig, Tunisia Laboratoire Génie des procédés et systèmes industriels (LR11ES54), Université de Gabès, Rue Omar Ibn Elkhattab, Zrig, Gabès 6029, Tunisia Ecole Nationale d'Ingénieurs de Gabès, Université de Gabès, Rue Omar Ibn Elkhattab, Zrig, Gabès 6029, Tunisia Laboratoire Réactions et Génie des Procédés, CNRS et Université de Lorraine, ENSIC, 1 Rue Grandville54000 Nancy France","PeriodicalId":22933,"journal":{"name":"The Open Chemical Engineering Journal","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2017-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84192964","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: 4
期刊
The Open Chemical Engineering Journal
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1