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International Journal of Chemical Engineering and Applications最新文献

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Conjugate Direction Particle Swarm Optimization Based Approach to Determine Kinetic Parameters from Part of Adiabatic Data 基于共轭方向粒子群优化的部分绝热数据动力学参数确定方法
International Journal of Chemical Engineering and Applications Pub Date : 2020-10-01 DOI: 10.18178/ijcea.2020.11.4.785
Xiaoqiao Zhao, Hao Wang, Wen-qian Wu, Wang-hua Chen
{"title":"Conjugate Direction Particle Swarm Optimization Based Approach to Determine Kinetic Parameters from Part of Adiabatic Data","authors":"Xiaoqiao Zhao, Hao Wang, Wen-qian Wu, Wang-hua Chen","doi":"10.18178/ijcea.2020.11.4.785","DOIUrl":"https://doi.org/10.18178/ijcea.2020.11.4.785","url":null,"abstract":"Due to the limited detection range of the adiabatic equipment, it is difficult to get complete experimental curve of some materials and calculate the kinetic parameters. In this work, the conjugate direction particle swarm optimization (CDPSO) approach, as a global stochastic optimization algorithm, is proposed to estimate the kinetic parameters and complete experimental curve from part of adiabatic calorimetric data. This algorithm combines the conjugate direction algorithm (CD) which has the ability to escape from the local extremum and the global optimization ability of the particle swarm optimization (PSO) which finds the globally optimal solutions. One case was used to verify this method: 20% DTBP in toluene decompositions under adiabatic conditions. Comparing the experimental and calculated complete temperature curve, the accuracy of the fitted kinetic parameters calculated by no less than 70% temperature rise rate proportion of data is verified. The value of TD24 is well-deviated even used 10% proportion of data. The case reasonably proves the effectiveness of CDPSO algorithm in the estimation of kinetic parameters from part of adiabatic data.","PeriodicalId":13949,"journal":{"name":"International Journal of Chemical Engineering and Applications","volume":"50 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80328949","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
Chlorine Emissions Reduction through Thermal Combustion by Modifying Chemical Reactions 通过改变化学反应的热燃烧减少氯的排放
International Journal of Chemical Engineering and Applications Pub Date : 2020-06-01 DOI: 10.18178/ijcea.2020.11.3.784
Rahul S. Patil, Kevin Rickert
{"title":"Chlorine Emissions Reduction through Thermal Combustion by Modifying Chemical Reactions","authors":"Rahul S. Patil, Kevin Rickert","doi":"10.18178/ijcea.2020.11.3.784","DOIUrl":"https://doi.org/10.18178/ijcea.2020.11.3.784","url":null,"abstract":"","PeriodicalId":13949,"journal":{"name":"International Journal of Chemical Engineering and Applications","volume":"14 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84189259","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
Strategic Planning of Integrated Biofuel and Petroleum Fuel Supply Chains 综合生物燃料和石油燃料供应链的战略规划
International Journal of Chemical Engineering and Applications Pub Date : 2020-06-01 DOI: 10.18178/ijcea.2020.11.3.783
M. Aba, G. L. Roux
{"title":"Strategic Planning of Integrated Biofuel and Petroleum Fuel Supply Chains","authors":"M. Aba, G. L. Roux","doi":"10.18178/ijcea.2020.11.3.783","DOIUrl":"https://doi.org/10.18178/ijcea.2020.11.3.783","url":null,"abstract":"","PeriodicalId":13949,"journal":{"name":"International Journal of Chemical Engineering and Applications","volume":"40 1","pages":"71-77"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77807721","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 Effect of Extrusion Temperature on Changes of Characteristics of Partially Pregelatinized Cassava Starch 挤出温度对部分预糊化木薯淀粉特性变化的影响
International Journal of Chemical Engineering and Applications Pub Date : 2020-04-01 DOI: 10.18178/ijcea.2020.11.2.782
A. Yulianto, Fitri Nur Kayati, Bayu Novariawan, Arni Supriyanti
{"title":"The Effect of Extrusion Temperature on Changes of Characteristics of Partially Pregelatinized Cassava Starch","authors":"A. Yulianto, Fitri Nur Kayati, Bayu Novariawan, Arni Supriyanti","doi":"10.18178/ijcea.2020.11.2.782","DOIUrl":"https://doi.org/10.18178/ijcea.2020.11.2.782","url":null,"abstract":"","PeriodicalId":13949,"journal":{"name":"International Journal of Chemical Engineering and Applications","volume":"6 1","pages":"67-70"},"PeriodicalIF":0.0,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72960262","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
Compressed Air as Energy Savings, Leak Survey and Recognizing Right Fittings to Show Cost Benefits 压缩空气作为节能，泄漏调查和识别合适的配件，以显示成本效益
International Journal of Chemical Engineering and Applications Pub Date : 2020-04-01 DOI: 10.18178/ijcea.2020.11.2.779
Rahul S. Patil, Kevin Rickert
{"title":"Compressed Air as Energy Savings, Leak Survey and Recognizing Right Fittings to Show Cost Benefits","authors":"Rahul S. Patil, Kevin Rickert","doi":"10.18178/ijcea.2020.11.2.779","DOIUrl":"https://doi.org/10.18178/ijcea.2020.11.2.779","url":null,"abstract":" Abstract —Energy savings being one of the most focused topics in every industry. Some leaks that are not obvious or visible has to be detected through technology with tedious work process. This study mainly focus es one of the specialty chemical production unit compressed air leaks through a continuously improving instruments and methods. These studies summarize conclusively that the best “overall” value a company can receive from tube fittings is by investing in higher quality, not by getting the lowest price. Add to this the fact that there are other fluid streams, besides compressed air, that are consumed at production facilities. These fluid streams (such as natural gas, nitrogen, or steam), due to their higher prices compared to compressed air, carry a significantly higher cost savings opportunity, and can more easily help justify standardizing on the highest quality tube","PeriodicalId":13949,"journal":{"name":"International Journal of Chemical Engineering and Applications","volume":"26 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87600718","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
Effect of Mixed Emulsifier on the Physicochemical Properties of Avocado Oil Nano-emulsions 混合乳化剂对牛油果油纳米乳理化性质的影响
International Journal of Chemical Engineering and Applications Pub Date : 2020-04-01 DOI: 10.18178/ijcea.2020.11.2.780
Tzung-Han Chou, D. Nugroho, C. Liang
{"title":"Effect of Mixed Emulsifier on the Physicochemical Properties of Avocado Oil Nano-emulsions","authors":"Tzung-Han Chou, D. Nugroho, C. Liang","doi":"10.18178/ijcea.2020.11.2.780","DOIUrl":"https://doi.org/10.18178/ijcea.2020.11.2.780","url":null,"abstract":"The objective of this study was to provide insights into the synthesis and characterization of oil-in-water nano-emulsions system prepared using mixed surfactant to induce nano-colloid formation. Nano-emulsions (NE) were obtained by pre-homogenization continued with ultrasonication of herbal drug loaded avocado oil, hydrogenated lecithin (HL), and d-α-tocopheryl polyethylene glycol 1000 succinate (TPGS) in the aqueous phase. The NE constituted with vary of surfactant ratio, surfactant to oil ratio, and oil content to investigate the physicochemical properties and storage stability. Thus, the morphology NE was examined and performed in regularly spherical shape distributed within 33–270 nm. Where the forming of micelle was increasing the polydispersity index and confirmed by TEM analysis. The results indicated that particle size of the nano-emulsions was majorly affected by the surfactant ratio and surfactant concentration. Moreover, the presence of TPGS decrease the phase transition region until completely eliminate it and make the NE become thermally stable. To investigate the stability of NE, visual observation was done and found that the unstable NE run into phase separation less than 24 hours. In contrast, the stable NE was found to be stable more than 365 days where found affected by the presence of micelle. The current result suggests that mixing TPGS and HL enhance the NE stability and induce micelle formation significantly. On the other hand, TPGS perform significant improvement in stability of NE and establish it be promising lipophilic compound carrier.","PeriodicalId":13949,"journal":{"name":"International Journal of Chemical Engineering and Applications","volume":"1 1","pages":"57-62"},"PeriodicalIF":0.0,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82013417","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
Removal of Hydrogen Sulphide Gas Using Agricultural Wastes 利用农业废弃物去除硫化氢气体
International Journal of Chemical Engineering and Applications Pub Date : 2020-04-01 DOI: 10.18178/ijcea.2020.11.2.781
T. Wajima
{"title":"Removal of Hydrogen Sulphide Gas Using Agricultural Wastes","authors":"T. Wajima","doi":"10.18178/ijcea.2020.11.2.781","DOIUrl":"https://doi.org/10.18178/ijcea.2020.11.2.781","url":null,"abstract":"In Japan, the total generation of biomass waste is 300 million tons annually, and the shortage of the final disposal site is a problem. Therefore, new use of agricultural waste is required. A representative gas for odor damage is hydrogen sulphide gas. In this study, removal capacity of agricultural wastes for low concentration hydrogen sulphide gas was examined to use as hydrogen sulphide gas absorbent. Adsorption experiments on hydrogen sulphide gas (500 ppm) using peanut shell, rice straw, rice husk, and commercial charcoal were carried out. Experimental results showed that the adsorption amount of charcoal was 2335 mg/g, while those of agricultural wastes are very low (rice husk: 27 mg/g, peanut shell: 22 mg/g, rice straw: 18 mg/g). By pyrolyzing peanut shell, the H2S gas adsorption of peanuts shell promote with increasing pyrolysis temperature due to the high specific surface area, and its adsorption amount of the product pyrolyzed at 600 o C is about 65% of charcoal.","PeriodicalId":13949,"journal":{"name":"International Journal of Chemical Engineering and Applications","volume":"13 1","pages":"63-66"},"PeriodicalIF":0.0,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81634575","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
High Intensity Ultrasound Assisted Transesterification of Espresso Coffee Oil Methyl Ester: Optimization through Response Surface Methodology Approach 高强度超声辅助浓缩咖啡油甲酯酯交换反应:响应面法优化
International Journal of Chemical Engineering and Applications Pub Date : 2020-04-01 DOI: 10.18178/ijcea.2020.11.2.778
Krit Somnuk, Pichai Eawlex, Jarernporn Thawornprasert, G. Prateepchaikul
{"title":"High Intensity Ultrasound Assisted Transesterification of Espresso Coffee Oil Methyl Ester: Optimization through Response Surface Methodology Approach","authors":"Krit Somnuk, Pichai Eawlex, Jarernporn Thawornprasert, G. Prateepchaikul","doi":"10.18178/ijcea.2020.11.2.778","DOIUrl":"https://doi.org/10.18178/ijcea.2020.11.2.778","url":null,"abstract":"High intensity ultrasound was used to accelerate the ester conversion of biodiesel production from espresso coffee oil (ECO) with a base-catalyzed transesterification. The ester conversion from ECO biodiesel production was optimized through three parameters: methanol, potassium hydroxide, and ultrasonic reaction time with a response surface methodology (RSM). After ECO has gone through the ultrasonic homogenizer (1000W ultrasonic power, 18 kHz ultrasonic frequency) for the biodiesel production. The maximum methyl ester of 96.385 wt.% was achieved under an optimal condition: 30.8 vol.% methanol, 16.6 gKOH/L, and 72 sec ultrasonic reaction time.","PeriodicalId":13949,"journal":{"name":"International Journal of Chemical Engineering and Applications","volume":"90 1","pages":"48-52"},"PeriodicalIF":0.0,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79189348","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
Study of Zirconium and Ammonium Perchlorate Based Igniter for Composite Solid Base Bleed Propellant 锆-高氯酸铵基复合固体底放推进剂点火器的研究
International Journal of Chemical Engineering and Applications Pub Date : 2020-02-01 DOI: 10.18178/ijcea.2020.11.1.775
A. Mukhtar, H. Nasir, B. Rashid
{"title":"Study of Zirconium and Ammonium Perchlorate Based Igniter for Composite Solid Base Bleed Propellant","authors":"A. Mukhtar, H. Nasir, B. Rashid","doi":"10.18178/ijcea.2020.11.1.775","DOIUrl":"https://doi.org/10.18178/ijcea.2020.11.1.775","url":null,"abstract":" Abstract —Ammonium perchlorate and hydroxyl-terminated polybutadiene (AP/HTPB) based solid composite base bleed (BB) propellant is used in BB units of modern artillery projectiles. An igniter is very vital part of BB unit for ignition and reignition of BB grain of projectile after muzzle exit. Very high energy igniter compositions based on Ammonium perchlorate (AP) and Zirconium (Zr) were developed with and without gum arabic as binder. Different ratios of Zr/AP were studied for pressure-time (P-t) curve, pressure maximum (P max ), rate of change of pressure (dP/dt), time to reach P max (t Pmax ), calorific value, and burning rate. It was observed that composition Z-7 with 50 wt. % of Zr and 50 wt. % AP having 6.5 wt. % of binder (additional) gave good burning rate, P max , dP/dt and heat of reaction. Selected composition was filled in igniter cups and of igniter bodied developed for BB unit of 155 mm Extended Range Base Bleed (ERBB) artillery projectile. Several igniters were fired by electronic ignition to recording burning time, igniter mass burning rate and ignition","PeriodicalId":13949,"journal":{"name":"International Journal of Chemical Engineering and Applications","volume":"374 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80531026","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
Dye Sensitized Solar Cell (DSSC) by Using a Natural Pigment from Microalgae 微藻天然色素染料敏化太阳能电池(DSSC
International Journal of Chemical Engineering and Applications Pub Date : 2020-02-01 DOI: 10.18178/ijcea.2020.11.1.772
A. Orona-Navar, I. Aguilar-Hernández, T. López-Luke, A. Pacheco, N. Ornelas-Soto
{"title":"Dye Sensitized Solar Cell (DSSC) by Using a Natural Pigment from Microalgae","authors":"A. Orona-Navar, I. Aguilar-Hernández, T. López-Luke, A. Pacheco, N. Ornelas-Soto","doi":"10.18178/ijcea.2020.11.1.772","DOIUrl":"https://doi.org/10.18178/ijcea.2020.11.1.772","url":null,"abstract":"Photovoltaic devices such as dye sensitized solar cells (DSSC), are an interesting alternative source of renewable energy because they convert solar radiation into electric current. In these solar cells, the use of natural pigments as sensitizers represents complete biodegradation, simple preparation technique, low cost, non-toxic pigments, high reduction of use of noble metals and cost of chemical synthesis. A natural pigment obtained from the microalga Scenedesmus obliquus was tested as sensitizer of a DSSC. The absorption characteristics and the photoelectrochemical parameters were studied to determine the photoconversion efficiency of the cell sensitized with this pigment. The sensitization was carried out by the pipetting technique and the photovoltaic efficiency was obtained under standard conditions under 1 sun illumination (AM 1.5G at 100mW/cm 2 ). The dye-sensitized solar cell was assembled as a sandwich scheme, where the photoelectrode faced the platinum counter electrode and an iodide electrolyte solution was between them. The energy conversion efficiency reached was 0.064%, the fill factor 69.3%, open circuit voltage 0.502 V and short-circuit photocurrent density 0.185 mA cm -2 . According to these results, the extract obtained from the microalga Scenedesmus obliquus shows promise as a sensitizer for solar cells.","PeriodicalId":13949,"journal":{"name":"International Journal of Chemical Engineering and Applications","volume":"54 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80444389","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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