Recent Innovations in Chemical Engineering最新文献_第8页

Preface 前言

Recent Innovations in Chemical Engineering Pub Date : 2020-01-22 DOI: 10.2174/240552041301200109101719

Y. Tao

引用次数: 0

Synthesis and Study of 4, 4-12-12 Alkyl Phenol Polyoxyethylene Sulfonate Gemini Surfactant 4,4-12-12烷基苯酚聚氧乙烯磺酸盐Gemini表面活性剂的合成与研究

Recent Innovations in Chemical Engineering Pub Date : 2019-10-28 DOI: 10.2174/2405520412666190723112325

Lu Yan, Fan Ping

{"title":"Synthesis and Study of 4, 4-12-12 Alkyl Phenol Polyoxyethylene Sulfonate Gemini Surfactant","authors":"Lu Yan, Fan Ping","doi":"10.2174/2405520412666190723112325","DOIUrl":"https://doi.org/10.2174/2405520412666190723112325","url":null,"abstract":"\u0000\u0000Gemini surfactants have good prospect of application development\u0000in various fields for their superior performance in foaming, wettability, and emulsification\u0000with lower critical micelle concentration (CMC) than conventional mono-surfactants.\u0000\u0000\u0000The purpose of this study was to synthesize an ionic sulfonate Gemini surfactant,\u0000which is mainly used as an oil flooding agent, to improve oil recovery and reduce oil production\u0000cost.\u0000\u0000\u0000With 4-dodecyl phenol, diethylene glycol and triethylene glycol as the raw materials\u0000to synthesize two sulfonate Gemini surfactants. The single factor experiment combined\u0000with Box-Behnken center composite experimental design, the optimum reaction conditions\u0000were determined. The optimal reaction condition of sulfonation was determined by orthogonal\u0000test. The product structure was characterized by nuclear magnetic resonance and infrared.\u0000\u0000\u0000The mass fraction of sodium hydroxide ω(NaOH), temperature and the quality ratio of\u0000hexadecyl trimethyl ammonium bromide to dodecyl phenol were 18%, 93.5°C and 14.2%,\u0000respectively. Under the condition of ice bath, the molar ratio of chlorosulfonic acid to 4, 4-\u000012-12 alkyl phenol polyoxyethylene ether was 2.02:1 and reaction for 5h. The critical micelle\u0000concentration was determined to be 2×10-4, 1.05×10-4, respectively.\u0000\u0000\u0000Two sulfonate Gemini surfactants, namely 5, 5-dilauryl alkyl-2,2'-(diethylene\u0000glycol oxygen base) sodium diphenyl sulfonate and 5,5-dilauryl alkyl-2,2'-(triethylene glycol\u0000oxygen base) sodium diphenyl sulfonate (recorded as III and IV, respectively) were synthesized.\u0000The synthesized surfactants have excellent emulsification ability.","PeriodicalId":38021,"journal":{"name":"Recent Innovations in Chemical Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49540751","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

Influence of Temperature and Shear Rate on Rheological Properties of CTAC/NaSal Aqueous Solution 温度和剪切速率对CTAC/NaSal水溶液流变性能的影响

Recent Innovations in Chemical Engineering Pub Date : 2019-10-28 DOI: 10.2174/2405520412666190731110603

M. Pang, C. Xie

{"title":"Influence of Temperature and Shear Rate on Rheological Properties of CTAC/NaSal Aqueous Solution","authors":"M. Pang, C. Xie","doi":"10.2174/2405520412666190731110603","DOIUrl":"https://doi.org/10.2174/2405520412666190731110603","url":null,"abstract":"\u0000\u0000Background: It is very important for understanding the turbulence drag-reducing\u0000mechanism and for improving product quality in the fields of pharmaceutical and chemical\u0000engineering to deeply investigate the rheological properties of surfactants solutions.\u0000\u0000\u0000\u0000 The rheological properties of Cationic surfactant (Cetyltrimethyl Ammonium\u0000Chloride)/Sodium salicylate were measured and analyzed with the MCR302 rheometer.\u0000\u0000\u0000\u0000The present results show that the shear viscosity of CTAC/NaSal solution with the\u0000exception of 0.9375mmol·L-1 can show the Newtonian characteristic, the shear-thickening,\u0000the shear-thinning and the stable shear properties with changing shear time. The induction\u0000time increases with a shear rate as a power law function relation tind=aγb.\u0000\u0000\u0000\u0000The shear viscosity of the CTAC/NaSal solution can be divided into three regions\u0000with shear rate, and its flow curve conforms to a linear function in the logarithmic coordinate.\u0000When the concentration and the shear rate are relatively high, the viscosity curve of\u0000the CTAC/NaSal solution appears \"platform\" at the high temperature. When the shear rate is\u0000greater than 90s-1, the shear viscosity only appears shear thinning with increasing temperature.","PeriodicalId":38021,"journal":{"name":"Recent Innovations in Chemical Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43700701","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

Heterogeneous Fenton Catalytic Removal of Organic Pollutant in Aqueous Solution by using Coal Gangue as a Catalyst 煤矸石非均相Fenton催化脱除水中有机污染物的研究

Recent Innovations in Chemical Engineering Pub Date : 2019-10-28 DOI: 10.2174/2405520412666190806120033

Jiwei Zhang, Jingjing Xu, Shuaixia Liu, B. Gu, F. Chen, Qiming Zheng, Chao Li

{"title":"Heterogeneous Fenton Catalytic Removal of Organic Pollutant in Aqueous Solution by using Coal Gangue as a Catalyst","authors":"Jiwei Zhang, Jingjing Xu, Shuaixia Liu, B. Gu, F. Chen, Qiming Zheng, Chao Li","doi":"10.2174/2405520412666190806120033","DOIUrl":"https://doi.org/10.2174/2405520412666190806120033","url":null,"abstract":"\u0000\u0000 Coal gangue was used as a catalyst in heterogeneous Fenton process\u0000for the degradation of azo dye and phenol. The influencing factors, such as solution pH\u0000gangue concentration and hydrogen peroxide dosage were investigated, and the reaction\u0000mechanism between coal gangue and hydrogen peroxide was also discussed.\u0000\u0000\u0000\u0000Experimental results showed that coal gangue has the ability to activate hydrogen\u0000peroxide to degrade environmental pollutants in aqueous solution. Under optimal conditions,\u0000after 60 minutes of treatment, more than 90.57% of reactive red dye was removed, and the\u0000removal efficiency of Chemical Oxygen Demand (COD) up to 72.83%.\u0000\u0000\u0000\u0000 Both hydroxyl radical and superoxide radical anion participated in the degradation\u0000of organic pollutant but hydroxyl radical predominated. Stability tests for coal gangue were\u0000also carried out via the continuous degradation experiment and ion leakage analysis. After\u0000five times continuous degradation, dye removal rate decreased slightly and the leached Fe\u0000was still at very low level (2.24-3.02 mg L-1). The results of Scanning Electron Microscope\u0000(SEM), energy dispersive X-Ray Spectrometer (EDS) and X-Ray Powder Diffraction (XRD)\u0000indicated that coal gangue catalyst is stable after five times continuous reuse.\u0000\u0000\u0000\u0000The progress in this research suggested that coal gangue is a potential nature\u0000catalyst for the efficient degradation of organic pollutant in water and wastewater via the\u0000Fenton reaction.\u0000","PeriodicalId":38021,"journal":{"name":"Recent Innovations in Chemical Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47990465","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

Model of Aeration Tank for Activated Sludge Process 活性污泥工艺曝气池模型

Recent Innovations in Chemical Engineering Pub Date : 2019-10-28 DOI: 10.2174/2405520412666190828210125

A. Amin, S. Hawash, M. Abdel-Fatah

{"title":"Model of Aeration Tank for Activated Sludge Process","authors":"A. Amin, S. Hawash, M. Abdel-Fatah","doi":"10.2174/2405520412666190828210125","DOIUrl":"https://doi.org/10.2174/2405520412666190828210125","url":null,"abstract":"\u0000\u0000Background and Objective: A model for the activated sludge aeration reactor is\u0000developed to study the effect of operating conditions on biodegradable organic pollutants\u0000treatment.\u0000\u0000\u0000\u0000 The model was developed and fitted using an experimental study conducted for\u0000wastewater collected from meat processing industrial units in Egypt. Inlet biomass and substrate\u0000concentrations are the operating parameters considered in our study.\u0000\u0000\u0000\u0000After treatment; biomass outlet concentration was reduced substantially. After\u0000reaching steady-state operation, outlet biomass concentration was not affected by the inlet\u0000biomass concentration, while outlet substrate concentration showed great dependency on the\u0000inlet substrate concentration. The model agrees well with the experimental data collected\u0000from an industrial activated sludge treatment unit.\u0000\u0000\u0000\u0000By varying process parameters, the model can be used effectively to predict and\u0000optimize the system behavior under different operating conditions. Varying the substrate\u0000concentration may lead to optimizing the process conditions for the system under study.\u0000","PeriodicalId":38021,"journal":{"name":"Recent Innovations in Chemical Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43857707","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

The Use of Ultrasound in Bio-Treatment of Jute Yarn with Laccase Enzyme 超声波在漆酶生物处理黄麻纱中的应用

Recent Innovations in Chemical Engineering Pub Date : 2019-10-28 DOI: 10.2174/2405520412666190731120559

A. Zolriasatein

{"title":"The Use of Ultrasound in Bio-Treatment of Jute Yarn with Laccase Enzyme","authors":"A. Zolriasatein","doi":"10.2174/2405520412666190731120559","DOIUrl":"https://doi.org/10.2174/2405520412666190731120559","url":null,"abstract":"\u0000\u0000 Jute fiber is highly sensitive to the action of light.\u0000Significant features of the photochemical changes lose its tensile strength and develop a yellow\u0000color. It has been proved that the phenolic structure of lignin is responsible for the yellowing\u0000of jute fiber. In order to remove lignin, jute yarns were treated with laccase enzyme\u0000in different treatment times and ultrasonic powers. Lower whiteness index and higher yellowness\u0000index values were obtained by the laccase-ultrasound system in contrast to conventional\u0000laccase treatment.\u0000\u0000\u0000The laccase enzyme which entered the fibers by applying ultrasound, decreased\u0000the tensile strength while the loss in tensile strength was lower at high ultrasound intensities.\u0000FT-IR spectrum showed that the band at 1634 cm-1 assigned to lignin completely disappeared\u0000after laccase treatment in the presence of ultrasound. The absence of this peak in the\u0000laccase-ultrasound treated jute yarn suggests complete removal of lignin. Change in the\u0000morphology of fibers was observed by SEM before and after enzymatic delignification. The\u0000laccase-ultrasound treated yarns showed a rougher surface and more porosity. On the other\u0000hand, it was more effective in fibrillation of the jute fibers than the conventional method. Finally,\u0000bio-treated jute yarns were dyed with basic and reactive dyes.\u0000\u0000\u0000The results indicated that at low intensities of ultrasound and relatively long reaction\u0000times, lignin can be more effectively removed and dye strength (K/S) increased to a higher\u0000extent. Laccase-ultrasound treatment increased the color strength by 33.65% and 23.40% for\u0000reactive and basic dyes respectively.\u0000\u0000\u0000In the case of light fastness, the conventional laccase treated yarns provided\u0000better protection than laccase-ultrasound treated yarns.","PeriodicalId":38021,"journal":{"name":"Recent Innovations in Chemical Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43946188","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

Meet Our Associate Editorial Board Member 见见我们的副编辑委员会成员

Recent Innovations in Chemical Engineering Pub Date : 2019-10-28 DOI: 10.2174/240552041204191008152838

A. Al-Rawajfeh

引用次数: 0

The Formation of Manganous Dithionate in the Manganese Oxide Flue Gas Desulfurization 氧化锰烟气脱硫过程中二硫代锰的形成

Recent Innovations in Chemical Engineering Pub Date : 2019-10-28 DOI: 10.2174/2405520412666190821102847

Pengyan Pu, Lin Yang, Lu Yao, Xia Jiang, Wenju Jiang

{"title":"The Formation of Manganous Dithionate in the Manganese Oxide Flue Gas Desulfurization","authors":"Pengyan Pu, Lin Yang, Lu Yao, Xia Jiang, Wenju Jiang","doi":"10.2174/2405520412666190821102847","DOIUrl":"https://doi.org/10.2174/2405520412666190821102847","url":null,"abstract":"\u0000\u0000 The Manganous Dithionate (MnS2O6, MD) was formed during the flue gas desulfurization process over manganese ore slurry, which impeded the\u0000following valuable using of the desulfurized lixivium. In this study, the MD formation and\u0000restraint in the desulfurization process using manganese was carefully investigated.\u0000\u0000\u0000\u0000Different type of manganese oxides/carbonate was used for the flue gas\u0000desulfurization, and the MD formation with the process was detected to obtain the basic information\u0000of the MD formation and restraint. The MD was directly formed by the uncompleted\u0000oxidation of SO2 with MnO2. The increased MD formation by Mn2O3, Mn3O4 and\u0000MnCO3 was due to their influence on the pH of slurry. Processability study showed that an\u0000increase in the acidity of slurry, the gaseous oxygen content and reaction temperature could\u0000inhibit the MD formation effectively. The optimum operating conditions to restrain the MD\u0000formation were temperature higher than 60°C, 10% or more oxygen and slurry pH lower\u0000than 3. The formed MD content was different with the different manganese compounds,\u0000which cloud be controlled by the ore-proportioning in industrial application.\u0000\u0000\u0000\u0000Using anolyte to prepare the manganese slurry for desulfurization could perform\u0000a good MD formation restraint, which provided valuable technical support for the\u0000cleaner production of electrolytic manganese industry.\u0000","PeriodicalId":38021,"journal":{"name":"Recent Innovations in Chemical Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45112427","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

Application and Development of Green Scale Inhibitor: A Mini- Review 绿色阻垢剂的应用与发展综述

Recent Innovations in Chemical Engineering Pub Date : 2019-10-21 DOI: 10.2174/2405520412666190723161345

G. Jing, Kai Guo, Zhengnan Sun, Hailin Yu, Yang Liu

引用次数: 1

Meet Our Editorial Board Member 会见我们的编辑委员会成员

Recent Innovations in Chemical Engineering Pub Date : 2019-10-21 DOI: 10.2174/240552041203190918105125

A. Indarto

引用次数: 0