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International Journal of Chemical Engineering and Applications最新文献

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Natural Indicator for Acid-Base Titration from Thai Yellow Flower Extracts 泰国黄花提取物酸碱滴定的自然指示剂
International Journal of Chemical Engineering and Applications Pub Date : 2019-02-01 DOI: 10.18178/ijcea.2019.10.1.734
N. Pattarapongdilok, P. Malichim, N. Simmee, J. Sichaem
{"title":"Natural Indicator for Acid-Base Titration from Thai Yellow Flower Extracts","authors":"N. Pattarapongdilok, P. Malichim, N. Simmee, J. Sichaem","doi":"10.18178/ijcea.2019.10.1.734","DOIUrl":"https://doi.org/10.18178/ijcea.2019.10.1.734","url":null,"abstract":"This study was aimed at investigating the efficiency of extract indicators from three yellow flowers in Thailand (Acacia auriculiformis A. Cunn., Crotalaria juncea L. and Sesbania javanica Miq.). The flowers were extracted with deionized water and evaporated in order to get dried extracts. The flower extracts (5% w/w) were prepared as indicator. In the primary experiment, the flower extracts were tested in order to determine their indicator property using three types of solutions, different pH, buffer solutions, HCl/NaOH solutions and CH3COOH/NaOH solutions. The results show that the colors will be changed in basic solution. Then, the indicator activities of flower extracts were used in acid-base titration in which a strong base was used as a titrant and the results were compared using a standard indicator, phenolphthalein. The results suggest that the flower extracts can be used as an alternative indicator for strong acid (HCl) – strong base (NaOH) titration and weak acid (CH3COOH) – strong base (NaOH) titrations. The color of solution will be changed from light brown to dark brown for A. auriculiformis A. Cunn., and transformed from light brown into yellow for C. juncea L. and S. javanica Miq. when the solutions have more basicity. The color changes were clear and sharp when the strength of NaOH solution was increased. Therefore, the use of these flowers’ extracts as indicators is their new application which can be applied in the chemistry class because these natural indicators are safe, cheap and easy to prepare.","PeriodicalId":13949,"journal":{"name":"International Journal of Chemical Engineering and Applications","volume":"69 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86137411","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
Dyeability of Nanofibers with Reactive, Vat and Disperse Dyes 活性、还原和分散染料对纳米纤维可染性的影响
International Journal of Chemical Engineering and Applications Pub Date : 2019-02-01 DOI: 10.18178/IJCEA.2019.10.1.730
F. Ahmed, Umair Ahmed Quresh, Zeeshan Khatri
{"title":"Dyeability of Nanofibers with Reactive, Vat and Disperse Dyes","authors":"F. Ahmed, Umair Ahmed Quresh, Zeeshan Khatri","doi":"10.18178/IJCEA.2019.10.1.730","DOIUrl":"https://doi.org/10.18178/IJCEA.2019.10.1.730","url":null,"abstract":"Colorful nanofibers were prepared through electrospinning technique followed by dyeing with different reactive dyes by comparing different dyeing techniques such as ultrasonic as well as conventional (padding method). Excellent color yield and color fastness were achieved through proper optimization conditions in ultrasonic treatment. Nanofibers exhibited smooth and bead free morphology. Two different polymers were selected for electrospinning, i.e. cellulose acetate and nylon-6. Preparation of cellulose nanofibers included electrospinning of cellulose acetate following deacetylation under alkaline conditions. Results suggested that dyes conferred improved color yield on the basis of K/S values. Deacetylation was also confirmed through FTIR. The resulting nanofibers can serve better choice for advanced apparel applications.","PeriodicalId":13949,"journal":{"name":"International Journal of Chemical Engineering and Applications","volume":"92 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85669253","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
Thick Activated Carbon Sheet Electrode and Hydrophobic Organic Matter Improve the Performance of Microbial Fuel Cell 厚活性炭片电极和疏水有机物提高微生物燃料电池性能
International Journal of Chemical Engineering and Applications Pub Date : 2019-02-01 DOI: 10.18178/ijcea.2019.10.1.732
Naoki Hayashi, Dang-Trang Nguyen, K. Taguchi
{"title":"Thick Activated Carbon Sheet Electrode and Hydrophobic Organic Matter Improve the Performance of Microbial Fuel Cell","authors":"Naoki Hayashi, Dang-Trang Nguyen, K. Taguchi","doi":"10.18178/ijcea.2019.10.1.732","DOIUrl":"https://doi.org/10.18178/ijcea.2019.10.1.732","url":null,"abstract":"Recently, there are a lot of environmental problems all over the world. Mass-consumption of fossil fuels contribute to depletion of them, emission of large amount of carbon dioxide, and global warming. However, fossil fuels are used everywhere and they are essential for modern life to get energy. A microbial fuel cell (MFC) is one of the new energy resources. This study focused on activated carbon sheet that has property of absorbing organic matter and large surface area. In this study, the experiment was conducted in eight conditions that were combined organic matter, kind of electrode and thickness of the electrode. Biofilm was built on two kinds of anodes that were made of carbon sheet and activated carbon sheet by using glucose or malt powder. The combination of using activated carbon sheet and malt powder produced maximum current density of 220 μA/cm 2.","PeriodicalId":13949,"journal":{"name":"International Journal of Chemical Engineering and Applications","volume":"28 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74230382","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
The Novel Hyper-Combustion for the Complete Combustion of Fossil Fuels 用于化石燃料完全燃烧的新型超燃烧
International Journal of Chemical Engineering and Applications Pub Date : 2019-02-01 DOI: 10.18178/ijcea.2019.10.1.733
R. Santilli
{"title":"The Novel Hyper-Combustion for the Complete Combustion of Fossil Fuels","authors":"R. Santilli","doi":"10.18178/ijcea.2019.10.1.733","DOIUrl":"https://doi.org/10.18178/ijcea.2019.10.1.733","url":null,"abstract":"","PeriodicalId":13949,"journal":{"name":"International Journal of Chemical Engineering and Applications","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91223766","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
Removal Elemental Mercury from Simulated Syn-Gas over Manganese-based Absorbents 锰基吸收剂去除模拟合成气中的单质汞
International Journal of Chemical Engineering and Applications Pub Date : 2019-02-01 DOI: 10.18178/ijcea.2019.10.1.735
H. W. Cheng, Y. S. Lin, C. T. Yu
{"title":"Removal Elemental Mercury from Simulated Syn-Gas over Manganese-based Absorbents","authors":"H. W. Cheng, Y. S. Lin, C. T. Yu","doi":"10.18178/ijcea.2019.10.1.735","DOIUrl":"https://doi.org/10.18178/ijcea.2019.10.1.735","url":null,"abstract":"","PeriodicalId":13949,"journal":{"name":"International Journal of Chemical Engineering and Applications","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90036356","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
Study of Acid Treatment Conditions on the Water and Moisture Absorbency of Coconut Coir 酸处理条件对椰壳吸湿性的影响研究
International Journal of Chemical Engineering and Applications Pub Date : 2019-02-01 DOI: 10.18178/IJCEA.2019.10.1.731
N. Asim, M. Amin, K. Sopian
{"title":"Study of Acid Treatment Conditions on the Water and Moisture Absorbency of Coconut Coir","authors":"N. Asim, M. Amin, K. Sopian","doi":"10.18178/IJCEA.2019.10.1.731","DOIUrl":"https://doi.org/10.18178/IJCEA.2019.10.1.731","url":null,"abstract":"The influence of chemical treatment on the properties of lignocellulosic fibers has been reported in many studies. This work analyzes the effect of acid treatment on the water and moisture absorbency of coconut coir. Multiple acidic treatment conditions have been considered for coconut coir via Design of Experimental (DOE) software to optimize its treatment and ensure maximum water and moisture absorbency. The compositional and structural changes of the treated samples were determined using X-ray diffraction (XRD), scanning electron microscope (SEM), X-Ray photoelectron spectroscopy (XPS), Fourier transform infrared (FT-IR), and Thermogravimetric analysis (TGA). The optimized acidic condition led to a treated coconut coir with only an 8% increment of water absorption, and a ~13% decrease of moisture absorption. Based on the results, acidic treatment is unsuitable for increasing coconut coir’s water and moisture absorbency.","PeriodicalId":13949,"journal":{"name":"International Journal of Chemical Engineering and Applications","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74865550","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
Fabrication of Bi2MoO6/CdS Heterostructures Nanocomposite: Enhanced Photocatalytic and Photoelectrochemical Performance under Visible-Light Irradiation Bi2MoO6/CdS异质结构纳米复合材料的制备:在可见光下增强光催化和光电化学性能
International Journal of Chemical Engineering and Applications Pub Date : 2018-12-01 DOI: 10.18178/IJCEA.2018.9.6.728
M. Arif, Yu Tong, Min Zhang, Qingyong Li, Xiaoheng Liu
{"title":"Fabrication of Bi2MoO6/CdS Heterostructures Nanocomposite: Enhanced Photocatalytic and Photoelectrochemical Performance under Visible-Light Irradiation","authors":"M. Arif, Yu Tong, Min Zhang, Qingyong Li, Xiaoheng Liu","doi":"10.18178/IJCEA.2018.9.6.728","DOIUrl":"https://doi.org/10.18178/IJCEA.2018.9.6.728","url":null,"abstract":"","PeriodicalId":13949,"journal":{"name":"International Journal of Chemical Engineering and Applications","volume":"293 1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72918298","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
Termiticidal Potential of Sappan (Caesalpinia sappan) Seeds 菝葜(Caesalpinia Sappan)种子的杀虫潜力
International Journal of Chemical Engineering and Applications Pub Date : 2018-12-01 DOI: 10.18178/IJCEA.2018.9.6.729
Liwayway H. Acero, M. C. P. Cruz, Fedeliz S. Tuy
{"title":"Termiticidal Potential of Sappan (Caesalpinia sappan) Seeds","authors":"Liwayway H. Acero, M. C. P. Cruz, Fedeliz S. Tuy","doi":"10.18178/IJCEA.2018.9.6.729","DOIUrl":"https://doi.org/10.18178/IJCEA.2018.9.6.729","url":null,"abstract":"","PeriodicalId":13949,"journal":{"name":"International Journal of Chemical Engineering and Applications","volume":"29 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76017418","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
Process Optimization for Recovery of Reducing Sugar from Coconut Pith Using Sequential Hydrothermal Pretreatment and Enzymatic Saccharification 顺序水热预处理-酶解糖化从椰髓中回收还原糖的工艺优化
International Journal of Chemical Engineering and Applications Pub Date : 2018-12-01 DOI: 10.18178/IJCEA.2018.9.6.726
M. Gundupalli, N. Senthilkumar, D. Bhattacharyya
{"title":"Process Optimization for Recovery of Reducing Sugar from Coconut Pith Using Sequential Hydrothermal Pretreatment and Enzymatic Saccharification","authors":"M. Gundupalli, N. Senthilkumar, D. Bhattacharyya","doi":"10.18178/IJCEA.2018.9.6.726","DOIUrl":"https://doi.org/10.18178/IJCEA.2018.9.6.726","url":null,"abstract":"using high pressure batch reactor under different conditions of time and temperature a) case I (2-10 min: 160-220 o C); b) case II (10-60 min: 100-160 o C). The enzymes used for this study were cellulase (97 FPU/ml) and β – glucosidase (5.1 CBU/mg). The hydrothermal pretreatment process was optimized using Response Surface Methodology (RSM). The solid residues collected after pretreatment were studied for morphological changes using XRD and SEM image evaluation. During the pretreatment step, the reducing sugar recovered was 14% for case I and 4% for case II. During the saccharification process, 43% and 16% of reducing sugar yield was observed for case I and case II, respectively. Total reducing sugar recovery (pretreatment and saccharification) of 57% (13.68 mg/g of dry pith biomass) was observed for pith pretreated under optimum condition for case I, which was higher the case II (20%).","PeriodicalId":13949,"journal":{"name":"International Journal of Chemical Engineering and Applications","volume":"150 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77423664","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
Simulation of Biomass Gasification with Proton Exchange Membrane Fuel Cell System 质子交换膜燃料电池系统生物质气化模拟
International Journal of Chemical Engineering and Applications Pub Date : 2018-12-01 DOI: 10.18178/IJCEA.2018.9.6.725
W. Mungkalasiri, J. Mungkalasiri
{"title":"Simulation of Biomass Gasification with Proton Exchange Membrane Fuel Cell System","authors":"W. Mungkalasiri, J. Mungkalasiri","doi":"10.18178/IJCEA.2018.9.6.725","DOIUrl":"https://doi.org/10.18178/IJCEA.2018.9.6.725","url":null,"abstract":"The rapid growth increases the threat of global climate change. Biomass is a potential alternative to fossil fuel due to environmentally friendly fuel source. Therefore, power generation from biomass gasification integrated with fuel cell system is studied in this work. The objectives are to determine the amount of biomass feed needed to produce power output of 50 kW and the optimal operating conditions of both gasification process and proton exchange membrane (PEM) fuel cell. The power output of the system is targeted in order to determine the amount of hydrogen required for the PEM fuel cell. The operating conditions of PEM fuel cell are varied in terms of temperature, pressure, and relative humidity (RH). The amount of hydrogen is used to determine the amount of feed required via the biomass gasification modeled by the Aspen plus programs. The parameters that are studied include gasifier temperature, air to biomass ratio, and steam to biomass ratio. The results shown that optimal operating conditions of PEM fuel cell (50 kW) are 120C, 3 atm and 100%RH and the hydrogen required is 2.320 kg/hr, whereas the optimal operating conditions of biomass gasification are 800C gasifier temperature, 2.0 air to biomass ratio, and 2.0 steam to biomass ratio with biomass feed of 27.641 kg/hr.","PeriodicalId":13949,"journal":{"name":"International Journal of Chemical Engineering and Applications","volume":"127 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75829264","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
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