International Journal of Chemical Reactor Engineering最新文献_第4页

Optimization and kinetics study for the conversion of furfuryl alcohol towards ethyl levulinate using sulfonic acid functionalized catalyst 使用磺酸功能化催化剂将糠醇转化为乙酰丙酸乙酯的优化和动力学研究

IF 1.6 4区工程技术

International Journal of Chemical Reactor Engineering Pub Date : 2024-01-08 DOI: 10.1515/ijcre-2023-0133

Rahul V. Prajapati, Sanjay Srivastava, G. Jadeja, J. Parikh

引用次数: 0

CFD simulation for comparative of hydrodynamic effects in biochemical reactors using population balance model with varied inlet gas distribution profiles 利用种群平衡模型进行 CFD 模拟，比较生化反应器中的流体力学效应，同时改变入口气体分布曲线

IF 1.6 4区工程技术

International Journal of Chemical Reactor Engineering Pub Date : 2024-01-05 DOI: 10.1515/ijcre-2023-0167

Shenzhou Ni, Tong Zhao, Zehui Sun, Wei Wang, Kuizu Su

{"title":"CFD simulation for comparative of hydrodynamic effects in biochemical reactors using population balance model with varied inlet gas distribution profiles","authors":"Shenzhou Ni, Tong Zhao, Zehui Sun, Wei Wang, Kuizu Su","doi":"10.1515/ijcre-2023-0167","DOIUrl":"https://doi.org/10.1515/ijcre-2023-0167","url":null,"abstract":"Abstract The operational efficiency of the airlift reactors relies significantly on the aeration and mixing provided by the inlet system. The diffused aeration system is the most energy-intensive component affecting the operation of the bioreactor, accounting for 45–75 % of the energy costs. This study presents a coupled CFD-PBM to investigate the collective impacts of multiple bubble diameters, variations in inlet gas distribution types, and flow rates on the hydrodynamic characteristics of bubble columns. The simulation results were validated through comprehensive comparisons with experimental data. The experimental data and simulations of the single bubble size model (SBSM) and multi-bubble size model (MBSM) were compared, proposing an enhanced inlet gas distribution type. The results indicate a close resemblance between the MBSM data and the experimental results, with an error margin not exceeding 5 %. Moreover, different flow rates were found to cause varying sensitivities in the bubble size distribution (BSD) within the column. Furthermore, the simulation results validate the similarity between lift coefficients and critical diameters to experiments and shed light on favorable conditions for reactor design. The key findings of this study encompass: (1) the use of MBSM can accurately predict the tower system characteristics; (2) the column circulation is intensified with small inlet bubble size and high gas velocity, which is favorable for chemical reactions and microbial aggregation to proceed; and (3) the BSD is not sensitive to the inlet gas distribution type at high flow rates.","PeriodicalId":51069,"journal":{"name":"International Journal of Chemical Reactor Engineering","volume":"50 31","pages":""},"PeriodicalIF":1.6,"publicationDate":"2024-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139382211","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

Research progress and perspectives of biogas production from municipal organic solid waste 利用城市有机固体废物生产沼气的研究进展和前景

IF 1.6 4区工程技术

International Journal of Chemical Reactor Engineering Pub Date : 2024-01-04 DOI: 10.1515/ijcre-2023-0082

Jianbo Zhao, Shan Ren, Chenghong Li, Mengjiao Jiao, Guanzhou Wu, Hongsheng Chen

{"title":"Research progress and perspectives of biogas production from municipal organic solid waste","authors":"Jianbo Zhao, Shan Ren, Chenghong Li, Mengjiao Jiao, Guanzhou Wu, Hongsheng Chen","doi":"10.1515/ijcre-2023-0082","DOIUrl":"https://doi.org/10.1515/ijcre-2023-0082","url":null,"abstract":"Abstract Anaerobic digestion is a prevailing technology for the treatment and utilization of municipal organic solid waste (MOSW). In this technology, the macromolecular organic matter in waste degrades into small molecular substances through the anaerobic decomposition of microorganisms, producing biogas that can provide enormous energy. This paper focuses on the research progress of anaerobic digestion of various organic wastes for biogas production. The principle and process of anaerobic digestion for biogas production are introduced, along with the key factors affecting anaerobic digestion efficiency, such as temperature, pH, and sealing conditions. At the same time, the current cycle treatment technology and comprehensive treatment system of MOSW are also summarized. Furthermore, the paper explores biogas purification technologies, including desulfurization, deoxidation, drying, and decarbonization. Finally, the state-of-the-art of the utilization of MOSW for biogas production in the world and the problems faced by the utilization of MOSW for biogas production in China are reviewed. By summarizing the anaerobic digestion technology of MOSW, this review hopes to provide some reasonable solutions for the high-value utilization of MOSW.","PeriodicalId":51069,"journal":{"name":"International Journal of Chemical Reactor Engineering","volume":"52 7","pages":""},"PeriodicalIF":1.6,"publicationDate":"2024-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139386389","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

Methyl-orange/reduced graphene oxide composite as the electrode material for the solid-state supercapacitor 作为固态超级电容器电极材料的甲基橙/还原氧化石墨烯复合材料

IF 1.6 4区工程技术

International Journal of Chemical Reactor Engineering Pub Date : 2023-12-08 DOI: 10.1515/ijcre-2023-0068

Karsimran Singh, Amarjeet Kaur

{"title":"Methyl-orange/reduced graphene oxide composite as the electrode material for the solid-state supercapacitor","authors":"Karsimran Singh, Amarjeet Kaur","doi":"10.1515/ijcre-2023-0068","DOIUrl":"https://doi.org/10.1515/ijcre-2023-0068","url":null,"abstract":"Abstract Herein, we have introduced the electrode material made up of a composite of an electrochemical active organic molecule (i.e. methyl orange (MO)) and reduced graphene oxide (rGO) composite. This composite is found to be a potential material for supercapacitor application due to the sustainability, redox reversibility of organic molecules, and good conductivity of rGO. For fabricating symmetric solid-state cell (MO/rGO//PVA/H2SO4//MO/rGO), polyvinyl alcohol–sulphuric acid (PVA/H2SO4) aqueous gel polymer electrolyte (GPE) has been sandwiched between the two MO/rGO electrodes. It was found that a MO/rGO based symmetric cell interfaced with a PVA/H2SO4 gel electrolyte has a specific capacitance of 166.79 F g−1 and an energy density of 11.58 Wh kg−1 at a power density of 6.25 kW kg−1. Here, good specific capacitance is the result of a combination of both electric double-layer capacitor (EDLC) and pseudo-capacitive behaviour observed in a fabricated cell. The specific capacitance is stable after 2500 cycles of charge and discharge, with an initial fade of 32 %. This synthesized material and fabricated device found its potential to be used for the supercapacitor application.","PeriodicalId":51069,"journal":{"name":"International Journal of Chemical Reactor Engineering","volume":"7 9","pages":""},"PeriodicalIF":1.6,"publicationDate":"2023-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138586530","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

Efficiency and environmental stability of TiO2 based solar cells for green electricity production 基于二氧化钛的太阳能电池用于绿色发电的效率和环境稳定性

IF 1.6 4区工程技术

International Journal of Chemical Reactor Engineering Pub Date : 2023-12-08 DOI: 10.1515/ijcre-2023-0117

Mahendra Singh, Deepak Singh, V. Mishra, Vijay Singh, Sunita Singh, Rahul Dev, Dhananjay Singh

{"title":"Efficiency and environmental stability of TiO2 based solar cells for green electricity production","authors":"Mahendra Singh, Deepak Singh, V. Mishra, Vijay Singh, Sunita Singh, Rahul Dev, Dhananjay Singh","doi":"10.1515/ijcre-2023-0117","DOIUrl":"https://doi.org/10.1515/ijcre-2023-0117","url":null,"abstract":"Abstract Environmental sustainability and energy security are two major issues, which are globally attracting the attention of the scientists and researchers. The sustainable development goal (SDG-7) calls for sustainable and modern energy for all. Solar energy has great potential and it can be transformed in other usable forms through various energy harvesting technologies. The photovoltaic cell utilizes solar radiation to generate green electricity. Photovoltaic cells follow the mechanism of photon to electron conversion for electricity production. Recently, organic solar cell, which is a type of photovoltaic cells, has shown potential to overcome demerits faced by photovoltaic cell like low flexibility, weight and environmental biodegradability issues. Dye sensitized solar cell (DSSC) is a kind of the organic solar cell. A (DSSC) has been fabricated using Punica Granatum (pomegranate juice) as sensitizer. The maximum efficiency of the solar cell is observed to be 0.16 %. The effect of various climatic parameters the performance of fabricated dye sensitized solar cell has also been evaluated and reported.","PeriodicalId":51069,"journal":{"name":"International Journal of Chemical Reactor Engineering","volume":"31 7","pages":""},"PeriodicalIF":1.6,"publicationDate":"2023-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138589902","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

CO2 adsorption behavior of a highly-microporous KOH-activated carbon obtained from rice husk waste: kinetic and equilibrium studies 稻壳废料制备的高微孔 KOH 活性炭的二氧化碳吸附行为：动力学和平衡研究

IF 1.6 4区工程技术

International Journal of Chemical Reactor Engineering Pub Date : 2023-12-04 DOI: 10.1515/ijcre-2023-0052

F. Granados-Correa, E. Gutiérrez-Bonılla, Melania Jiménez-Reyes, G. Roa‐Morales, P. Balderas-Hernández

引用次数: 0

Numerical analysis of various shapes of lozenge pin-fins in microchannel heat sink 微通道散热器中不同形状菱形针翅的数值分析

IF 1.6 4区工程技术

International Journal of Chemical Reactor Engineering Pub Date : 2023-09-11 DOI: 10.1515/ijcre-2023-0092

Injamamul Haque, Tabish Alam, Jagmohan Yadav, N. Gupta, Md Irfanul Haque Siddiqui, T. Siddiqui, Naushad Ali, Shivam Srivastava, Anil Singh Yadav, Abhishek Sharma, Rohit Khargotra, A. K. Thakur

{"title":"Numerical analysis of various shapes of lozenge pin-fins in microchannel heat sink","authors":"Injamamul Haque, Tabish Alam, Jagmohan Yadav, N. Gupta, Md Irfanul Haque Siddiqui, T. Siddiqui, Naushad Ali, Shivam Srivastava, Anil Singh Yadav, Abhishek Sharma, Rohit Khargotra, A. K. Thakur","doi":"10.1515/ijcre-2023-0092","DOIUrl":"https://doi.org/10.1515/ijcre-2023-0092","url":null,"abstract":"Abstract Higher density heat flux is the major cause of damage to the electronic component; therefore, cooling such components are of the utmost importance to operate in a safe zone and to increase their life. For this purpose, Microchannel heat sinks (MHSs) are among the most practical methods for dissipating unwanted heat. In this regard, the novel lozenge-shaped pin-fins in the flow passage of the microchannel heat sink (MHS) have been designed and proposed to achieve higher cooling performance. Aspect ratios (λ = 0.30, 0.39, 0.52, 0.69, 1.00) of several lozenge-shaped pin-fins have been used into the design of MHS to investigate their impact on heat transmission and fluid flow characteristics. A three-dimensional model of MHS with a lozenge-shaped has been generated and simulated numerically in the following range of Reynolds numbers, starting from 100 to 900. Heat transmission and flow characteristics have been presented and discussed in detail. It has been found that introducing lozenge-shaped pin-fins in MHS has greatly improved cooling performance. The highest improvement in Nusselt number has been observed when aspect ratio (λ) of lozenge-shaped pin-fins was 1.00. The Nusselt number have been varied in the following ranges of 6.96–12.34, 6.97–12.72, 7.01–13.62, 7.09–14.43, and 7.12–15.26 at λ = 0.30, λ = 0.39, λ = 0.52, λ = 0.69, and λ = 1.0, respectively. In addition, a study of the thermohydraulic performance of the proposed lozenge-shaped pin-fins in the MHS found that this design is an effective means of lowering operating temperature.","PeriodicalId":51069,"journal":{"name":"International Journal of Chemical Reactor Engineering","volume":" ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2023-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47831314","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

Simulation investigation of the effect of heating temperature and porosity of porous media on the water evaporation process 加热温度和多孔介质孔隙率对水蒸发过程影响的模拟研究

IF 1.6 4区工程技术

International Journal of Chemical Reactor Engineering Pub Date : 2023-08-30 DOI: 10.1515/ijcre-2023-0090

Licheng Wang, Yijing Lu, Wenwen Zhang, Zhou-Yi Yang

{"title":"Simulation investigation of the effect of heating temperature and porosity of porous media on the water evaporation process","authors":"Licheng Wang, Yijing Lu, Wenwen Zhang, Zhou-Yi Yang","doi":"10.1515/ijcre-2023-0090","DOIUrl":"https://doi.org/10.1515/ijcre-2023-0090","url":null,"abstract":"Abstract In the study, carbon fiber as porous media, water and vapor as liquid and gas phases, respectively, the evaporation process of multiphase fluid in carbon fiber was explored based on the pore network model. The Micro-CT technology was adopted to reconstruct the structure of carbon fiber. The applicability of the CFD model adopted in the simulation was validated by experiment. Effect of heating temperature and porosity on the evaporation process was investigated in detail. The study found that at various heating temperatures, fluid temperature increases gradually with time, and tends to be constant when it reaches a certain temperature. When heating temperature is high, the constant temperature is large, the time to arrive the constant temperature is short. The liquid evaporation rate V e and the heat absorbed by the fluid every 0.5 s Q0.5 increase first, and decrease gradually when a maximum value is reached. When the heating temperature is high, the maximum that V e and Q0.5 can be obtained is also large, the required time is also short. In porous media with different porosity, fluid temperature rises to an approximate constant. V e and Q0.5 increase first, and decrease gradually after reaching a certain maximum value. The maximum values of V e and Q0.5 in porous media with porosity of 0.598 are the largest.","PeriodicalId":51069,"journal":{"name":"International Journal of Chemical Reactor Engineering","volume":" ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2023-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45580435","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

Indoor air quality control using lab scale air purifier tower 利用实验室规模的空气净化器塔控制室内空气质量

IF 1.6 4区工程技术

International Journal of Chemical Reactor Engineering Pub Date : 2023-08-16 DOI: 10.1515/ijcre-2023-0043

R. Patel, A. Singh, Rathy Shankar, P. Khare, A. Thakur, V. Gole

{"title":"Indoor air quality control using lab scale air purifier tower","authors":"R. Patel, A. Singh, Rathy Shankar, P. Khare, A. Thakur, V. Gole","doi":"10.1515/ijcre-2023-0043","DOIUrl":"https://doi.org/10.1515/ijcre-2023-0043","url":null,"abstract":"Abstract Population and industrialization growth is the major reason for the indoor air quality depletion. So, air quality control in sensitive area is needed to avoid air pollution-based hazards. Small economical air pollutant controlling equipment may be helpful in indoor air quality control. Present work covers the performance study of lab scale air purifier tower, 37 × 37 × 140 cm3 (LSAPT) for the removal of PM2.5, PM10 and TVOC from the polluted air in a control volume (75 m3). LSAPT follow 3 step pollutants removal procedure in which coarse particles are separated by prefilter and the fine particles are separated with the help of negative ioniser and activated carbon beds. More than 99 % of percentage of PM2.5, PM10 and TVOC removal are achieved within 100 s for initial pollutants loading of PM2.5: 1000 μg/m3 & PM10: 1000 μg/m3 and TVOC: 7.2 mg/m3 respectively. The assessment study suggests the proposed lab scale air purifier tower can be used continuously up to 10–15 days without much variation in pollutants removal efficacy. Approximately 7700 ₹ (92.40 US$) is used as installation cost and 30 ₹/hr (0.36 US$/hr) is used as consumable energy cost.","PeriodicalId":51069,"journal":{"name":"International Journal of Chemical Reactor Engineering","volume":" ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2023-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48884593","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

Temperature sensor location for the implementation of cascade control schemes in distillation columns: an approach based on multiscale time series analysis 用于实现精馏塔串级控制方案的温度传感器位置：一种基于多尺度时间序列分析的方法

IF 1.6 4区工程技术

International Journal of Chemical Reactor Engineering Pub Date : 2023-08-14 DOI: 10.1515/ijcre-2022-0111

J. G. Moguel-Castañeda, Rafael Gomez-Rodriguez, H. Puebla, E. Hernandez‐Martinez

{"title":"Temperature sensor location for the implementation of cascade control schemes in distillation columns: an approach based on multiscale time series analysis","authors":"J. G. Moguel-Castañeda, Rafael Gomez-Rodriguez, H. Puebla, E. Hernandez‐Martinez","doi":"10.1515/ijcre-2022-0111","DOIUrl":"https://doi.org/10.1515/ijcre-2022-0111","url":null,"abstract":"Abstract In this work, the application of multiscale analysis to evaluate the sensitivity of the dynamic responses of the trays in a distillation column exposed to external disturbances is explored. This sensitivity allows for the identification of the tray where the temperature sensor improves the performance of a composition-temperature type cascade controller. To implement the proposed methodology, synthetic time series are generated for each plate of the column, which is subsequently analyzed using the multiscale rescaled range (R/S) analysis. Three case studies were evaluated (binary mixtures, azeotropic mixture and ternary mixture), finding that the highest values of the Hurst exponent correlate with the areas of greatest sensitivity of the column. To corroborate this result, a composition-temperature cascade control scheme was implemented, evaluating the temperature sensor in each plate of the column, identifying that the zone of greatest sensitivity determined with the multiscale analysis corresponds to the best performance of the controller. Therefore, our results show that the proposed methodology represents an easy-to-implement alternative that provides information on the most suitable zone for the placement of temperature sensors to improve the performance of cascade control in a pre-designed distillation column.","PeriodicalId":51069,"journal":{"name":"International Journal of Chemical Reactor Engineering","volume":" ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2023-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42327218","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