Chemical Industry & Chemical Engineering Quarterly最新文献_第10页

Liquefied fuel from plastic wastes using nitro cracking method with refinery distillation bubble cap plate column 利用炼油厂蒸馏泡盖板塔硝基裂解法提取塑料废弃物液化燃料

IF 1.2 4区工程技术

Chemical Industry & Chemical Engineering Quarterly Pub Date : 2021-01-01 DOI: 10.2298/CICEQ200907014S

M. Sundarraj, M. Meikandan

{"title":"Liquefied fuel from plastic wastes using nitro cracking method with refinery distillation bubble cap plate column","authors":"M. Sundarraj, M. Meikandan","doi":"10.2298/CICEQ200907014S","DOIUrl":"https://doi.org/10.2298/CICEQ200907014S","url":null,"abstract":"Development and modernization have resulted in an immense increase in the production of all kinds of goods, which indirectly produce waste to the globe. Plastic was one of the materials that produce more waste due to its wide range of applications due to its versatility and relatively low cost. In most cases, thermoplastics polymer makes up a high proportion of waste and steadily increasing worldwide pollution to the environment. As a result, waste plastics pose a severe environmental challenge due to their non-biodegradable properties and disposal problems. Diverse innovations are being developed to address plastic drawbacks, which can boost the profits of the recycling industry and shrink the world plastic waste landfills. As a part of recycling, the present work is aimed to produce liquefied fuel through the nitro cracking method using pyrolysis reactor induced with bubble cap plate column with Y zeolite as a catalyst. The liquefied fuel results produced from plastic wastes (plastics bags, plastic bottles, packing materials, and medical plastics) are compared with fuel produced from virgin plastics. The 8% higher pyrolytic oil yield is achieved compared with the results of oil produced without catalyst, and 82% of total waste plastic material is converted into liquefied fuel by the presence of a catalyst. FTIR, GC-MS, Bomb Calorimeter characterize the obtained fuel results by adopting the standard ASTM methods, and the results were compared with virgin and waste plastics.","PeriodicalId":9716,"journal":{"name":"Chemical Industry & Chemical Engineering Quarterly","volume":"1 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68461448","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Enhanced photocatalytic oxidation of reactive dye using manganese catalyst complex 锰催化剂配合物增强活性染料的光催化氧化

IF 1.2 4区工程技术

Chemical Industry & Chemical Engineering Quarterly Pub Date : 2021-01-01 DOI: 10.2298/CICEQ201202019V

S. Vajnhandl, Lidija Škodič, M. Simonič, A. Lobnik, J. Volmajer-Valh

引用次数: 0

Evaluation of different mathematical models in the CFD-DEM simulation of conical spouted bed fluid dynamics 不同数学模型在锥形喷流床流体动力学CFD-DEM模拟中的评价

IF 1.2 4区工程技术

Chemical Industry & Chemical Engineering Quarterly Pub Date : 2021-01-01 DOI: 10.2298/CICEQ110707002B

R. Béttega

{"title":"Evaluation of different mathematical models in the CFD-DEM simulation of conical spouted bed fluid dynamics","authors":"R. Béttega","doi":"10.2298/CICEQ110707002B","DOIUrl":"https://doi.org/10.2298/CICEQ110707002B","url":null,"abstract":"The input parameters, empirical, and semi-empirical models significantly influence the responses obtained by CFD-DEM simulations. In this work, the effect of three turbulence models, three conditions of the particle rotation, and five drag models on the fluid dynamic behavior of a conical spout bed applied to the drying of sorghum grains were evaluated. Experimental data on the solids pressure drop, height, and shape of the fountain were used to validate the simulations. Results showed the importance of including the particle rotation in the model to approximate the results simulated with the experimental behavior. Compared with experimental data, considering the particle rotation by Dennis et al. model, the deviation was of the 2% for the fountain height and 9.18% for the pressure drop. While for the model without the particle rotation, the deviations were 106.33% and 42.31% for the fountain height and pressure drop, respectively. For the analyzed case, the standard k-? turbulence model showed a greater agreement with the experimental data. For the drag models evaluated, the best fit with the experimental data was obtained by the Koch-Hill drag model, followed by the Gidaspow model, with deviations less than 10%.","PeriodicalId":9716,"journal":{"name":"Chemical Industry & Chemical Engineering Quarterly","volume":"1 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68456827","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Biosorption of lead ions from aqueous solutions by beech sawdust and wheat straw 山毛榉木屑和麦秸对水溶液中铅离子的生物吸附

IF 1.2 4区工程技术

Chemical Industry & Chemical Engineering Quarterly Pub Date : 2021-01-01 DOI: 10.2298/ciceq191113021b

D. Božić, M. Gorgievski, V. Stanković, M. Cakic, S. Dimitrijević, V. Conić

引用次数: 5

Cellulose acetate butyrate graphene oxide nanocomposite membrane: Fabrication, characterization, and performance 醋酸丁酸纤维素氧化石墨烯纳米复合膜:制备、表征和性能

IF 1.2 4区工程技术

Chemical Industry & Chemical Engineering Quarterly Pub Date : 2021-01-01 DOI: 10.2298/ciceq200128022a

Majed M. Alghamdi, A. El-Zahhar

{"title":"Cellulose acetate butyrate graphene oxide nanocomposite membrane: Fabrication, characterization, and performance","authors":"Majed M. Alghamdi, A. El-Zahhar","doi":"10.2298/ciceq200128022a","DOIUrl":"https://doi.org/10.2298/ciceq200128022a","url":null,"abstract":"In this study, the effects of graphene oxide (GO) nanosheets on the physicochemical properties and performances of cellulose acetate butyrate (CAB) membranes were investigated. Nanocomposite membranes were fabricated using CAB and a small amount of GO in the range of 0 to 0.07 wt.%, using a conventional phase-inversion method. Membranes were characterized by different methods and their performances were tested using a dead-end filtration system. Compared with pristine CAB membrane, experimental results demonstrated an improvement in features such as hydrophilicity, permeability, salt rejection, antifouling, and stability. The results proved an increase in the porosity and pore sizes of membranes with GO addition. Furthermore, the membrane containing 0.07 wt.% of GO exhibited a low contact angle of 37??and a dramatic improvement in water flux of about 450% (from 2 to 11 L/(m2 h)). Moreover, it demonstrated a salt rejection of 39% for NaCl and 87% for Na2SO4, corresponding to improvements of about 144 and 93%, respectively. Furthermore, the results revealed a higher antifouling property with an 86% improvement in flux recovery and higher stability in terms of performance and thermal properties compared to CAB.","PeriodicalId":9716,"journal":{"name":"Chemical Industry & Chemical Engineering Quarterly","volume":"1 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68460104","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Magnesium removal from phosphoric acid by precipitation: Optimization by experimental design 沉淀法去除磷酸中的镁:实验设计优化

IF 1.2 4区工程技术

Chemical Industry & Chemical Engineering Quarterly Pub Date : 2021-01-01 DOI: 10.2298/ciceq200101030m

Ahmed Mahrou, Rim Jouraiphy, H. Mazouz, A. Boukhair, M. Fahad

{"title":"Magnesium removal from phosphoric acid by precipitation: Optimization by experimental design","authors":"Ahmed Mahrou, Rim Jouraiphy, H. Mazouz, A. Boukhair, M. Fahad","doi":"10.2298/ciceq200101030m","DOIUrl":"https://doi.org/10.2298/ciceq200101030m","url":null,"abstract":"High content of magnesium in phosphate and phosphoric acid affects negatively the performance and operating conditions in phosphate industry. A content of more than 0.3% in phosphate increases the P2O5 losses during phosphate digestion and filtration, and also increases steam consumption and solid settling kinetics during concentration. In this work, the removal of magnesium from phosphoric acid by precipitation in one of the compounds, MgAlF5 or MgAl2F8, was studied. Magnesium precipitation is achieved by the simultaneous addition of aluminum and fluorine. The experimental design methodology was used to carry out this work. Tests were conducted according to the NEMRODW software using industrial quality phosphoric acid. The screening study of parameters affecting the removal efficiency of magnesium from industrial wet phosphoric acid showed that from the following parameters: temperature, F/Mg and Al/Mg ratios, aluminum form and fluorine form, only temperature and F/Mg ratio have an effective influence on magnesium removal. The optimization of magnesium removal from phosphoric acid was performed according to the response surface methodology using a composite matrix. By applying this methodology, the optimum parameters corresponding to a maximum magnesium removal efficiency in phosphoric acid were determined. The values of the optimum parameters obtained by this method are T = 80 ?C, ratios: Al/Mg = 1 and F/Mg = 16.","PeriodicalId":9716,"journal":{"name":"Chemical Industry & Chemical Engineering Quarterly","volume":"1 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68460480","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Hydrodynamic studies in two - phase stirred fluidized bed with three types of impellers 三种叶轮两相搅拌流化床的流体力学研究

IF 1.2 4区工程技术

Chemical Industry & Chemical Engineering Quarterly Pub Date : 2021-01-01 DOI: 10.2298/ciceq200305029d

N. Deepa, K. Saravanan

引用次数: 1

Application of the model of cylindrical reactor for self-purification by indigenous microorganisms 圆柱形反应器模型在原生微生物自净化中的应用

IF 1.2 4区工程技术

Chemical Industry & Chemical Engineering Quarterly Pub Date : 2021-01-01 DOI: 10.2298/CICEQ201126006R

Drazana Radonjic

{"title":"Application of the model of cylindrical reactor for self-purification by indigenous microorganisms","authors":"Drazana Radonjic","doi":"10.2298/CICEQ201126006R","DOIUrl":"https://doi.org/10.2298/CICEQ201126006R","url":null,"abstract":"Pharmaceutically Active Compounds (PhACs), in particular, Nonsteroidal anti-inflammatory drugs (NSAIDs) are in increasingly wider usage, and as such are more and more frequently part of the organic matter of recipient rivers, especially in their lower course. To indicate their significance as pollutants, as well as the significant role that the presence of autochthonous microflora plays in solving this issue, we undertook to perform this experiment. The experiment, titled ?Application of the Model of Cylindrical Reactor In Self-purification by Indigenous Microorganisms?, was conducted during one year period at the location of Vukovci, in the lower course of Moraca river. Assuming that the concentration of NSAIDs and PhACs in water can be reduced through self-purification, it has been proven that such processes result in a modification of phenotype in the indigenous microbiological population. Having the abovementioned premise in mind, we constructed the experiment model, which entails kineticism of water, whereas the defined volume flow rate per unit time was 0.005 m/s; through the known distance of 432 m. Over one year of application of the model of the cylindrical reactor for enhancing self-purification capacity by indigenous microorganisms, auto-purification increased by 28.05%, the phenotype of the indigenous microorganisms changed by 24.62%, whereas the total concentration of particular PhACs, micropollutants, and NSAIDs decreased by 4.19%.","PeriodicalId":9716,"journal":{"name":"Chemical Industry & Chemical Engineering Quarterly","volume":"1 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68461870","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluation of combined radiation for the treatment of lamivudine and zidovudine via AOP 经AOP联合放疗治疗拉米夫定和齐多夫定的疗效评价

IF 1.2 4区工程技术

Chemical Industry & Chemical Engineering Quarterly Pub Date : 2021-01-01 DOI: 10.2298/ciceq210309029l

Alex Leandro Lucena Andrade de, R. R. Santana, Marcos André Oliveira Soares de, L. Almeida, M. Duarte, D. Napoleão

{"title":"Evaluation of combined radiation for the treatment of lamivudine and zidovudine via AOP","authors":"Alex Leandro Lucena Andrade de, R. R. Santana, Marcos André Oliveira Soares de, L. Almeida, M. Duarte, D. Napoleão","doi":"10.2298/ciceq210309029l","DOIUrl":"https://doi.org/10.2298/ciceq210309029l","url":null,"abstract":"The presence of pharmaceutical contaminants in nature is an environmental problem generating increasing concerns. Due to this, it is necessary to evaluate treatments that are capable of degrading these contaminants, such as the advanced oxidation processes (AOP). In this work, the photoperoxidation and photo-Fenton AOP were applied to degrade a mixture of the drugs lamivudine and zidovudine, in aqueous medium and synthetic effluent (SE). To this end, a bench reactor (UV-C; UV-A and sunlight irradiations) was built. The AOP treatments efficiency was evaluated by ultraviolet/visible spectrophotometry. The tests involved the application of the irradiations individually and combined. The best operational conditions were [H2O2] of 600 mg.L-1 and [Fe] of 0.5 mg.L-1, for both matrices, with degradations of 90.53% and 89.32% for the photoperoxidation and photo-Fenton processes in aqueous media and 88.69% and 85.79% in SE. Kinetic studies showed a good fit for two pseudo-first order models with R2 > 0.93. Toxicity tests involving the application of lettuce, carrot, and tomato seeds showed an inhibition for the three seeds when submitted to solutions after treatment, for both matrices, this fact is corroborated by the HPLC analysis, in which the formation of small peaks was verified, suggestive of the formation of by-products. Thus, it can be affirmed that both photo-Fenton and photoperoxidation processes are efficient to degrade the drug mixture when applying UV-C radiation.","PeriodicalId":9716,"journal":{"name":"Chemical Industry & Chemical Engineering Quarterly","volume":"1 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68462078","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Clean printing process of cotton with natural dyes: Effect of paste formulation components on printing performances 天然染料棉的洁净印花工艺:浆料配方成分对印花性能的影响

IF 1.2 4区工程技术

Chemical Industry & Chemical Engineering Quarterly Pub Date : 2021-01-01 DOI: 10.2298/ciceq191004019b

Fadhel Ben Amal, W. Miled, Wafa Haddar, N. Meksi

{"title":"Clean printing process of cotton with natural dyes: Effect of paste formulation components on printing performances","authors":"Fadhel Ben Amal, W. Miled, Wafa Haddar, N. Meksi","doi":"10.2298/ciceq191004019b","DOIUrl":"https://doi.org/10.2298/ciceq191004019b","url":null,"abstract":"A novel natural dye Corchorus olitorius L. was investigated in the preparation of printing pastes for screen printing of cotton fabric. To ensure ecological printing, greener thickeners were used such as: sodium alginate, carboxymethyl cellulose and Ceratonia siliqua L. flour. The nature and concentration of thickener, dyestuff and urea concentrations, mordant type and fixation method were explored. Printed cotton fabric qualities were evaluated by determining different parameters: color strength, penetration percentage, printing fastnesses and mechanical properties, whereas print paste quality was evaluated by measuring its apparent viscosity. The higher dye concentration used in the printing paste led to better apparent viscosity and color strength levels. The increase of urea concentration improved the color strength, but reduced the apparent viscosity of printing paste. Best results of viscosity and color strength parameters were obtained using ferrous sulfate as a mordant and sodium alginate as a thickener, the results being 1346.67 mPa s-1 and 4.90, respectively. The resulting color shades varied from green to brown and very good color fastnesses was achieved, but depended mainly on the used experimental conditions.","PeriodicalId":9716,"journal":{"name":"Chemical Industry & Chemical Engineering Quarterly","volume":"1 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68459754","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5