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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
The Open Chemical Engineering Journal Pub Date : 2018-05-25 DOI: 10.2174/1874123101812010067
Rouzbeh Ramezani, S. Mazinani, R. Felice
{"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
The Open Chemical Engineering Journal Pub Date : 2018-04-30 DOI: 10.2174/1874123101812010057
H. Atashi, Somayyeh Veiskarami
{"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
The Open Chemical Engineering Journal Pub Date : 2018-04-30 DOI: 10.2174/1874123101812010036
S. Sanni, O. Akinrinola, E. O. Yusuf, O. Fagbiele, O. Agboola
{"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
The Open Chemical Engineering Journal Pub Date : 2018-04-23 DOI: 10.2174/1874123101812010024
G. Saiu, S. Tronci, M. Grosso, Enzo Cadoni, Nicoletta Curreli
{"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
The Open Chemical Engineering Journal Pub Date : 2018-02-08 DOI: 10.2174/1874123101812010014
A. Verma, N. Kishore
{"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
The Open Chemical Engineering Journal Pub Date : 2017-10-31 DOI: 10.2174/1874123101711010053
Q. Lv, Liu Haiyu, Zhijuan Wang, H. Bai, Qing Zhang
{"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
The Open Chemical Engineering Journal Pub Date : 2017-07-28 DOI: 10.2174/1874123101711010017
J. Benjumea, J. Sánchez-Oneto, J. R. Portela, E. M. Ossa
{"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
The Open Chemical Engineering Journal 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
The Open Chemical Engineering Journal Pub Date : 2017-06-19 DOI: 10.2174/1874123101812010001
A. Weber, H. Bart
{"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
The Open Chemical Engineering Journal Pub Date : 2017-06-12 DOI: 10.2174/1874123101711010033
M. Chahbani, D. Tondeur, R. Talmoudi, A. Abdeljaoued
{"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
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