Fine Chemical Engineering最新文献_第3页

Reaction Characteristics of Hydrogen-Rich Syngas Production by Sludge/Coal Cogasification Based on the Iron-Based Oxygen Carriers 基于铁基氧载体的污泥/煤共气化富氢合成气反应特性

Fine Chemical Engineering Pub Date : 2022-01-14 DOI: 10.37256/fce.3120221138

Qingjiao Zhu, Xintong Guo, Yanan Guo, Jingjing Ma, Q. Guo

{"title":"Reaction Characteristics of Hydrogen-Rich Syngas Production by Sludge/Coal Cogasification Based on the Iron-Based Oxygen Carriers","authors":"Qingjiao Zhu, Xintong Guo, Yanan Guo, Jingjing Ma, Q. Guo","doi":"10.37256/fce.3120221138","DOIUrl":"https://doi.org/10.37256/fce.3120221138","url":null,"abstract":"With the acceleration of industrialization and urbanization in China, wastewater treatment is increasing yearly. As a by-product of wastewater treatment, the gasification of sludge with coal in chemical looping process is a clean and efficient conversion technology. To explore the reaction behavior of cogasification of sludge and coal with iron-based oxygen carriers (OCs) for producing hydrogen-rich syngas, the experiment of cogasification using Fe2O3/Al2O3 as OC in a fluidized bed reactor was conducted. The result showed that the volume percentage of hydrogen (H2) and syngas yield is proportional to the amount of sludge added. The optimal operation conditions were: temperature at 900 °C, the mass ratio of OC to coal at 5.80 and mass ratio of sludge to coal at 0.2. Under this operating condition, the volume percentage of H2 and syngas yield in the flue gas was 75.6 vol% and 97.5 L·min-1·kg-1, respectively. Besides, the OC showed a stable reactivity in the sixth redox cycle with added sludge. However, the reactivity of OC significantly declined in the seventh and eighth redox cycles. It was recovered when the ash was separated. The decrease in the specific surface area of the OC caused by ash deposition is the main reason for the decline in its reactivity. The kinetic analysis showed that the random pore model describes the reaction mechanism of sludge/coal chemical looping gasification (CLG). The addition of sludge can reduce the activation energy of coal CLG reaction, accelerate the gasification reaction rate and increase the carbon conversion.","PeriodicalId":289475,"journal":{"name":"Fine Chemical Engineering","volume":"86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115056572","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

Trends on the Development of Hybrid Supercapacitor Electrodes from the Combination of Graphene and Polyaniline 石墨烯与聚苯胺复合超级电容器电极的发展趋势

Fine Chemical Engineering Pub Date : 2022-01-12 DOI: 10.37256/fce.3120221077

S. Santoso, Harry Kasuma (Kiwi) Aliwarga, Livy Laysandra, Artik Elisa Angkawijaya, Felycia Edi Soetaredjo, Jindrayani Nyoo Putro, Maria Yuliana, Felix Pasila, Kuan-Chen Cheng, Hsien-Yi Hsu, Suryadi Ismadj

{"title":"Trends on the Development of Hybrid Supercapacitor Electrodes from the Combination of Graphene and Polyaniline","authors":"S. Santoso, Harry Kasuma (Kiwi) Aliwarga, Livy Laysandra, Artik Elisa Angkawijaya, Felycia Edi Soetaredjo, Jindrayani Nyoo Putro, Maria Yuliana, Felix Pasila, Kuan-Chen Cheng, Hsien-Yi Hsu, Suryadi Ismadj","doi":"10.37256/fce.3120221077","DOIUrl":"https://doi.org/10.37256/fce.3120221077","url":null,"abstract":"The high demand for efficient energy devices leads to the rapid development of energy storage systems with excellent electrochemical properties, such as long life cycles, high cycling stability, and high power density. SC is postulated as a potential candidate to fulfill this demand. The combination of graphene and polyaniline can create SC electrodes with excellent electrical conductivity, high specific surface area, and high capacitance. The graphene/polyaniline hybrid electrodes represent an attractive means to overcome the major drawbacks of graphene or polyaniline non-hybrid (single) electrode materials. In this review article, the trend in the development of various graphene/polyaniline hybrid electrodes is summarized, which includes the zero-dimension graphene-quantum-dots/polyaniline hybrid, one-dimension graphene/polyaniline hybrid, two-dimension graphene/polyaniline hybrid, and three-dimension hydrogel-shaped graphene/polyaniline hybrid. Several strategies and approaches to enhance the capacitance value and cycling stability of graphene/polyaniline hybrid electrodes are discussed in this review article, such as the addition of transition metal oxides and metal-organic frameworks, and modification of graphene into functionalized-graphene. The performance of the electrodes prepared from the combination of graphene with other conducting polymers (i.e., polypyrrole, polythiophene, and polythiophene-derivatives) is also discussed. \u0000 \u0000 \u0000","PeriodicalId":289475,"journal":{"name":"Fine Chemical Engineering","volume":"123 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132202981","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: 3

Synthesis and Evaluation of Fluorinated Benzyl Ethers as Alternate Protecting Groups for Enhanced NMR Resolution in Oligosaccharide Synthesis 低聚糖合成中增强核磁共振分辨率的替代保护基团氟化苯醚的合成及评价

Fine Chemical Engineering Pub Date : 2022-01-11 DOI: 10.37256/fce.3120221221

Ntai M Khoabane, Elizabeth J Grayson, Alan M Kenwright, Manoharan K Pillai

{"title":"Synthesis and Evaluation of Fluorinated Benzyl Ethers as Alternate Protecting Groups for Enhanced NMR Resolution in Oligosaccharide Synthesis","authors":"Ntai M Khoabane, Elizabeth J Grayson, Alan M Kenwright, Manoharan K Pillai","doi":"10.37256/fce.3120221221","DOIUrl":"https://doi.org/10.37256/fce.3120221221","url":null,"abstract":"Oligosaccharides have been playing an important role in biological systems. Synthesis of oligosaccharides requires the protection from hydroxyl groups present in the corresponding monosaccharide units. The existing methods of protection have drawbacks, including formation of anomeric mixtures, change in hydrophilicity or lipophilicity and solubility of the products, participation of the protecting groups in the reactions of the core of monosaccharide units, problems associated with chemoselectivity, regioselectivity and overall stereochemical outcomes of reactions. Additionally, there has been a spectral overlap of these protecting groups with carbohydrate core, which yielded more complex spectra. Therefore, the identification and synthesis of suitable alternative protecting groups have received attention in the oligosaccharide synthesis. The objective of the present study was to synthesize various fluorinated benzyl ethers of methyl-α-D-mannopyronoside and to evaluate these ethers as the alternative protecting groups for enhancing NMR resolution in the oligosaccharide synthesis. Various fluorinated benzyl ethers of methyl-α-D-mannopyronoside were prepared through the reaction of methyl-α-D-mannopyronoside with various fluorinated benzyl bromides by using Williamson ether synthesis method. Spectral analysis of these fluorinated benzyl ethers showed that the peaks of methylene carbons shifted to a value of 10-20 parts per million (ppm) to a high field region in the 13C NMR, compared to the non-fluorinated benzyl ether. As a result, the spectral complexity decreased and enhanced the spectral resolution. In this study, we concluded that fluorinated benzyl ethers could be a suitable alternative to the non-fluorinated benzyl ethers to protect the hydroxyl groups of monosaccharides in the synthesis of oligosaccharides.","PeriodicalId":289475,"journal":{"name":"Fine Chemical Engineering","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128805631","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

Photo-Degradation of Orange G as an Environmental Pollutant with TiO2-ZnO Composite Material TiO2-ZnO复合材料光降解环境污染物橙G的研究

Fine Chemical Engineering Pub Date : 2021-12-24 DOI: 10.37256/fce.3120221170

Md Abdullah Bin Samad, Md. Amjad Hossain, Tajmeri S. A. Islam, Waziha Farha

{"title":"Photo-Degradation of Orange G as an Environmental Pollutant with TiO2-ZnO Composite Material","authors":"Md Abdullah Bin Samad, Md. Amjad Hossain, Tajmeri S. A. Islam, Waziha Farha","doi":"10.37256/fce.3120221170","DOIUrl":"https://doi.org/10.37256/fce.3120221170","url":null,"abstract":"The increasing water pollution is a great concern as millions of people don't have access to pure water in Bangladesh. A considerable number of people are dying of contaminated water each year not only in Bangladesh but all over the world. Many industries, tanneries, companies, etc. are emitting lots of environmentally hazardous materials into the surrounding water. Many of these pollutants are industrial dyes. The dyes loss from the industrial water during dyeing operation damage the esthetic merit of surface water. They minimize light penetration, hamper aquatic lives and hinder photosynthesis. Some dyes may also have toxic, mutagenic, and carcinogenic characteristics. The purpose of this research is to get rid of the pollutant dye Orange G before the water is contaminated. A method named photo-degradation using different light sources is used to mineralize Orange G dye with composite materials including TiO2-ZnO. This composite was prepared by the hydrothermal method. The photocatalytic behavior of the prepared composite TiO2-ZnO helps in minimizing the effect of this dye to save the water from contamination. The composite compoundwas studied by experimenting on photo-degradation with Orange G under different light sources such as visible light, UV light, and sunlight. The photo-degradation percentage was found to maximum of 79.60 in the presence of sunlight. The percentages of photo-degradation under UV light and visible light were 48.0 and 18.40 respectively.","PeriodicalId":289475,"journal":{"name":"Fine Chemical Engineering","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130576809","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

Effect of Biomass-Based Catalyst in Walnut Shell/Polypropylene to BTX 生物质基核桃壳/聚丙烯催化剂对BTX的影响

Fine Chemical Engineering Pub Date : 2021-11-19 DOI: 10.37256/fce.3120221057

Yanan Guo, Xin Pan, Qingjiao Zhu, Jingjing Ma, Qingjie Guo

引用次数: 1

Yamuna Action Plan-III: Impact on Water Quality of River Yamuna, India 亚穆纳行动计划iii:对印度亚穆纳河水质的影响

Fine Chemical Engineering Pub Date : 2021-11-10 DOI: 10.37256/fce.3120221032

Ankit Srivastava, Prathna T.C.

{"title":"Yamuna Action Plan-III: Impact on Water Quality of River Yamuna, India","authors":"Ankit Srivastava, Prathna T.C.","doi":"10.37256/fce.3120221032","DOIUrl":"https://doi.org/10.37256/fce.3120221032","url":null,"abstract":"Water is indispensable to sustain life and livelihood, and rivers serve as major reservoirs of water in manyparts of the world. River Yamuna is the major tributary of the River Ganges in India and is considered to be among the most polluted rivers of the world. The Yamuna Action Plan (YAP) is one of the largest river restoration projects in India and is initiated to clean the river. YAP is a bilateral arrangement between the governments of India and Japan, and consists of three Actions Plans-I, II and III. YAP-III is currently under execution with some of the major projects being the construction of the new Wastewater Treatment Plant (WWTP) at Okhla, rehabilitation and upgrading of WWTPs at Kondli and Rithala in the Delhi region. The impact of YAP-III with regard to these major projects on the reduction of the pollutant load reaching the river and cost-benefit has been evaluated in the current study. Findings from the study indicated that major projects such as construction of a new WWTP at Okhla (124 MGD) can effectively reduce the pollutant load by 283 kg/MGD of wastewater at a cost of Rs. 1161 crores while the rehabilitation project at Rithala (Phase I) can reduce the pollutant load by 92.5 kg/MGD wastewater at a cost of Rs. 300 crores. The present study indicates the need to evaluate projects in terms of cost-benefit analysis in addition to the economic and environmental evaluation for effective action. A holistic approach towards treatment of pollutant load in the river and prevention of further pollutants from reaching the river is required in addition to community awareness and participation for sustainable river water management.","PeriodicalId":289475,"journal":{"name":"Fine Chemical Engineering","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121889953","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

Measurement of Complex Formation Process of Nickel (II) with Freshwater Fulvic Acids Using the Solubility Method 用溶解度法测定淡水黄腐酸与镍(II)络合物形成过程

Fine Chemical Engineering Pub Date : 2021-07-12 DOI: 10.37256/FCE.222021870

T. Makharadze, G. Makharadzé

{"title":"Measurement of Complex Formation Process of Nickel (II) with Freshwater Fulvic Acids Using the Solubility Method","authors":"T. Makharadze, G. Makharadzé","doi":"10.37256/FCE.222021870","DOIUrl":"https://doi.org/10.37256/FCE.222021870","url":null,"abstract":"The complex formation process between Ni(II) and fulvic acids has been studied through the solubility method at pH = 9.0. The old suspension of Ni(OH)2 is used as a solid phase. Fulvic acids are isolated from Paravani lake by the adsorption-chromatographic method. The activated charcoal is used as a sorbent. The concentration of fulvic acids in model solutions changes from 1.1 × 10-5 mol/L to 4.4 × 10-5 mol/L. The value of molar mass of fulvic acids at pH = 9.0 was taken into consideration for the calculation of molar concentrations of fulvic acids. Before adding the ligand the initial concentration of nickel was 3.8 × 10-6 mol/L. This article has shown that, during complex formation process every 0.25 part of an associate of fulvic acids (Mw = 7610), inculcates into nickel's inner coordination sphere as an integral ligand, so it may be assumed, that the average molecular weight of the associate of fulvic acids which takes part in complex formation process equals to 1903. This part of the associate of fulvic acids was conventionally called the \"active associate\". The average molecular weight of the \"active associate\" was used for determining the concentration of free ligand and average stability constant (1:1), which equals to β = 1.07 × 107 (lgβ = 7.03).","PeriodicalId":289475,"journal":{"name":"Fine Chemical Engineering","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133754622","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

Recent Trends in the Development of Benzimidazole Hybrid Derivatives and Their Antimalarial Activities 苯并咪唑杂化衍生物的研究进展及其抗疟活性

Fine Chemical Engineering Pub Date : 2021-07-08 DOI: 10.37256/FCE.222021867

W. Singh, B. Debnath, K. Manna

引用次数: 0

Visible Light Induced Photocatalytic Dye Degradation by Cobalt Oxide Nanoparticles 可见光诱导氧化钴纳米颗粒光催化降解染料

Fine Chemical Engineering Pub Date : 2020-09-23 DOI: 10.37256/FCE.122020559

Biswajit Chowdhury, S. S. Pradhan, H. S. Das, Bhaskar Biswas

{"title":"Visible Light Induced Photocatalytic Dye Degradation by Cobalt Oxide Nanoparticles","authors":"Biswajit Chowdhury, S. S. Pradhan, H. S. Das, Bhaskar Biswas","doi":"10.37256/FCE.122020559","DOIUrl":"https://doi.org/10.37256/FCE.122020559","url":null,"abstract":"Considering the impact of organic dyes as industrial effluents on the environment, this research study describes the synthesis, structural and morphological characterization, and visible light induced photo-catalytic studies of cobalt oxide nanoparticles (CoONPs). In order to synthesize the CoONPs, a tetra-nuclear cobalt(III)-Schiff base complex was prepared in crystalline phase and employed to produce CoONPs through thermal decomposition of the synthetic precursor. The morphology of the nanoparticle has been delineated with different spectroscopic and analytic methods. Scanning and transmission electron microscopy (FE-SEM and HR-TEM) analyses estimate the cauliflower structured CoONPs with an average size ~80 nm. The photo-catalytic behavior of CoONPs has been tested against murexide and titan yellow dye in aqueous phase. This CoONPs ensure more than 90% of degradation for murexide while ~60% degradation has been observed for titan yellow (TY) in aqueous phase for a same time interval. MX and TY adopt different structures which bring the variation in rate of photosensitization for the synthetic CoONPs photocatalyst and account on the different photocatalytic efficiency towards the degradation of MX and TY in presence of visible light.","PeriodicalId":289475,"journal":{"name":"Fine Chemical Engineering","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132967628","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: 6

Acetonitrile Synthesis via Ammoxidation: Mo/zeolites Catalysts Screening 氨氧化法合成乙腈:钼/沸石催化剂筛选

Fine Chemical Engineering Pub Date : 2020-03-09 DOI: 10.37256/fce.112020117.16-30

F. Ayari, Emna Mannei, E. Asedegbega-Nieto, M. Mhamdi, G. Delahay

{"title":"Acetonitrile Synthesis via Ammoxidation: Mo/zeolites Catalysts Screening","authors":"F. Ayari, Emna Mannei, E. Asedegbega-Nieto, M. Mhamdi, G. Delahay","doi":"10.37256/fce.112020117.16-30","DOIUrl":"https://doi.org/10.37256/fce.112020117.16-30","url":null,"abstract":"Mo/zeolites catalysts were investigated in ethane and ethylene ammoxidation into acetonitrile. The catalysts were prepared either in solid‒solid or liquid‒solid interface after varying different parameters. The stabilization of Mo species upon the exchange is dependent on the hydrophilic/hydrophobic character of the zeolite and the type of Mo precursor. In fact, zeolites with low Si/Al molar ratios should be avoided due to their higher dehydration enthalpy values (Δdehyd.H). On the other hand, the use of MoOCl4, Mo(CO)6 and MoCl3 precursors and zeolites with high Si/Al ratios led to inefficient [Mo7O24]6‒ species and amorphous MoO3 which catalyzes the combustion reaction. Nevertheless, the use of MoCl5, MoO3 and MoO2(C5H7O2)2 led to promising activities. In catalysis, [MoO4]2‒ species are required to activate C2H6 into C2H4, while [MoxO3x+1]2‒ (x =1, 2) species catalyze the ammoniation of C2H4 and the ethylamine dehydrogenation into CH3CN. Interestingly, active catalysts could be obtained by humid impregnation and a simultaneous oxidative treatment. Such a treatment improves the dispersion state of crystalline MoO3, which activate ethane molecules. It is judicious to perform C2H6 oxidative dehydrogenation before ammoxidation since the interference between the different investigated parameters could be noted.","PeriodicalId":289475,"journal":{"name":"Fine Chemical Engineering","volume":"72 267 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125961859","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: 3