Polish Journal of Chemical Technology最新文献

Synthesis and Self-assembly of a Simple CO2-responsive Diblock Polymer 一种简单的二氧化碳响应二嵌段聚合物的合成与自组装

IF 1 4区工程技术

Polish Journal of Chemical Technology Pub Date : 2024-09-06 DOI: 10.2478/pjct-2024-0025

Pengfei Zhang, Xianwu Jing, Lang Zhou, Qiang Liu, Yadong Zhang

引用次数: 0

A Comprehensive Analysis of the Hydrogen Generation Technology Through Electrochemical Water and Industrial Wastewater Electrolysis 电化学水和工业废水电解制氢技术综合分析

IF 1 4区工程技术

Polish Journal of Chemical Technology Pub Date : 2024-09-06 DOI: 10.2478/pjct-2024-0028

Qusay Al-Obaidi, Dhorgham Skban Ibrahim, M.N. Mohammed, Abbas J. Sultan, Faris H. Al-Ani, Thamer Adnan Abdullah, Oday I. Abdullah, Nora Yehia Selem

{"title":"A Comprehensive Analysis of the Hydrogen Generation Technology Through Electrochemical Water and Industrial Wastewater Electrolysis","authors":"Qusay Al-Obaidi, Dhorgham Skban Ibrahim, M.N. Mohammed, Abbas J. Sultan, Faris H. Al-Ani, Thamer Adnan Abdullah, Oday I. Abdullah, Nora Yehia Selem","doi":"10.2478/pjct-2024-0028","DOIUrl":"https://doi.org/10.2478/pjct-2024-0028","url":null,"abstract":"Most renewable energy sources are intermittent and seasonal, making energy storage and consumption problematic. Hydrogen gas can save and convey chemical energy, making it a promising sustainable energy source. Electrochemical water electrolysis technology’s sustainable and efficient hydrogen gas production attracts global attention. Higher hydrogen production rates enhance hydrogen volumetric energy capacity by storing intermittent hydrogen gas in high-pressure tanks. Pressurized storage tanks are cost-effective and efficient. Hydrogen gas may be stored economically and efficiently in pressurized tanks, making electrochemical water electrolysis a sustainable energy source. This paper introduced hydrogen as an alternative to natural gas, detailed water electrolysis technologies for hydrogen production, and highlighted how they can manufacture hydrogen efficiently and cost-effectively. The theoretical volume of gaseous hydrogen and oxygen that could be produced by electrolyzing water under typical temperature and pressure (STP) circumstances, assuming a 100% efficiency rate of the process. Since there are always two moles of hydrogen produced by electrolysis and one mole of gas occupies the same volume, the volume of hydrogen developed from water is twice that of oxygen. The volume of liberated oxygen is 0.21 (L/min), and the volume of liberated hydrogen is 0.42 (L/min) with a current density of 30 A, for instance, the tracer’s diffusion coefficient for all conceivable flow rates. A maximum value of 90 liters per hour was determined to be the threshold at which the diffusion coefficient increased with increasing flow rate. It would appear that the diffusion coefficient remains unchanged at flow rates greater than 90 liters per hour.","PeriodicalId":20324,"journal":{"name":"Polish Journal of Chemical Technology","volume":"20 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142217045","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

Sulfonation Modification of Guar Gum and Its Performance as a Fracturing Fluids Thickener 瓜尔胶的磺化改性及其作为压裂液增稠剂的性能

IF 1 4区工程技术

Polish Journal of Chemical Technology Pub Date : 2024-09-06 DOI: 10.2478/pjct-2024-0027

Yonggen Yi, Lanbing Wu, Jie Zhang, Haiyang Wang, Xuan Xie, Chen Gang

{"title":"Sulfonation Modification of Guar Gum and Its Performance as a Fracturing Fluids Thickener","authors":"Yonggen Yi, Lanbing Wu, Jie Zhang, Haiyang Wang, Xuan Xie, Chen Gang","doi":"10.2478/pjct-2024-0027","DOIUrl":"https://doi.org/10.2478/pjct-2024-0027","url":null,"abstract":"To solve the contradiction between reducing water-insoluble content and maintaining high viscosity in the preparation of modified guar gum for oilfield fracturing fluid, in this work, sodium 3-chloro-2-hydroxypropylsulfonate was used as a modifier to prepare sulfonated guar gum. Orthogonal and single-factor extrapolation experiments were conducted to explore the effects of reaction conditions and the optimal process was determined as follows: reaction temperature of 26 oC, reaction time of 2.0 h, sodium hydroxide as a mass fraction of guar gum of 1.0%, and sodium 3-chloro-2-hydroxypropyl sulfonate dosage as a mass fraction of guar gum of 0.5%. Furtherly, the temperature stability, filtration property, and inhibition of formation clay of the sulfonated products were investigated. The results showed that the apparent viscosity of 0.6% solution of guar gum was increased by 33%, the water-insoluble content was decreased by 0.42%, and the temperature stability, filtration resistance, and clay inhibition were all improved. Especially, the viscosity of cross-linked sulfonated guar gum is 100% higher than that of unmodified guar gum. The structure of sulfonated guar gum was characterized and confirmed by infrared spectrum, DSC, thermogravimetric, and elemental analysis.","PeriodicalId":20324,"journal":{"name":"Polish Journal of Chemical Technology","volume":"11 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142217048","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

Synthesis and characterization of curcumin-encapsulated loaded on carboxymethyl cellulose with docking validation as α-amylase and α-glucosidase inhibitors 羧甲基纤维素上的姜黄素包囊的合成与表征以及作为α-淀粉酶和α-葡萄糖苷酶抑制剂的对接验证

IF 1 4区工程技术

Polish Journal of Chemical Technology Pub Date : 2024-09-06 DOI: 10.2478/pjct-2024-0031

Abdulrahman A. Almehizia, Mohamed A. Al-Omar, Abdulrahman M. Al-Obaid, Ahmed M. Naglah, Mashooq A. Bhat, Hazem A. Ghabbour, Tamer K. Khatab, Ashraf S. Hassan

引用次数: 0

Preparation of nano SnO2-Sb2O3 composite electrode by cathodic deposition for the elimination of phenol by Sonoelectrochemical oxidation 通过阴极沉积制备纳米二氧化锡-Sb2O3 复合电极，利用声电化学氧化法消除苯酚

IF 1 4区工程技术

Polish Journal of Chemical Technology Pub Date : 2024-09-06 DOI: 10.2478/pjct-2024-0026

Hind Jabbar Nsaif, Najwa Saber Majeed, Rasha H. Salman

{"title":"Preparation of nano SnO2-Sb2O3 composite electrode by cathodic deposition for the elimination of phenol by Sonoelectrochemical oxidation","authors":"Hind Jabbar Nsaif, Najwa Saber Majeed, Rasha H. Salman","doi":"10.2478/pjct-2024-0026","DOIUrl":"https://doi.org/10.2478/pjct-2024-0026","url":null,"abstract":"The preparation of composite metal oxide to attain high efficiency in removing phenol from wastewater has a great concern. In the present study, the focus would be on adopting antimony-tin oxide coating onto graphite substrates instead of titanium; besides the effect of SbCl3 concentration on the SnO2-Sb2O3 composite would be examined. The performance of this composite electrode as the working electrode in the removal of phenol by sonoelectrochemical oxidation will be studied. The antimony-tin dioxide composite electrode was prepared by cathodic deposition with SnCl2 . 2H2O solution in a mixture of HNO3 and NaNO3, with different concentrations of SbCl3. The SnO2-Sb2O3 deposit layer’s structure and morphology were examined and the 4 g/l SbCl3 gave the more crystallized with nanoscale electrodeposition. The highest removal of phenol was 100% at a temperature of 30 oC, with a current density (CD) of 25 mA/cm2.","PeriodicalId":20324,"journal":{"name":"Polish Journal of Chemical Technology","volume":"2 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142217072","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

Experimental validation of a CFD model of a ground heat exchanger with slinky coils 带滑动盘管的地面热交换器 CFD 模型的实验验证

IF 1 4区工程技术

Polish Journal of Chemical Technology Pub Date : 2024-07-12 DOI: 10.2478/pjct-2024-0022

Robert Grzywacz, Mikołaj Teper

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Hydrodynamics of two- and three-phase systems in an agitated vessel with two agitators 带两个搅拌器的搅拌容器中两相和三相系统的流体力学

IF 1 4区工程技术

Polish Journal of Chemical Technology Pub Date : 2024-07-12 DOI: 10.2478/pjct-2024-0013

Magdalena Cudak

引用次数: 0

Numerical Modeling of Heat Transfer and Flow Field in a Novel Calcinator 新型计算器中的传热和流场数值建模

IF 1 4区工程技术

Polish Journal of Chemical Technology Pub Date : 2024-07-12 DOI: 10.2478/pjct-2024-0015

Tie-zhuang Zhou, Bin Yang, Cheng-qiang Wang

{"title":"Numerical Modeling of Heat Transfer and Flow Field in a Novel Calcinator","authors":"Tie-zhuang Zhou, Bin Yang, Cheng-qiang Wang","doi":"10.2478/pjct-2024-0015","DOIUrl":"https://doi.org/10.2478/pjct-2024-0015","url":null,"abstract":"This study focused on investigating the heat transfer and flow dynamics of a catalyst granule within a pilot calciner, employing both numerical modeling and computational fluid dynamics. The research comprised two primary components: (1) Simulation of the gas flow within the pilot calciner using the Eulerian–Eulerian approach, treating gases and catalyst particles as distinct phases – gas and granular. The model, encapsulating both heat transfer and flow processes, was developed in Fluent software version 16.0. Its accuracy was confirmed against empirical data from a pilot-scale calciner unit. (2) Subsequent to validation, the model was utilized to examine the distribution characteristics within the flow field, including the temperature profiles of gas and particles, the vector velocity field of the gas across different phases, and the overall heat transfer coefficient. This investigation aims to enhance the understanding of the complex heat transfer and flow dynamics in calciners, facilitating the optimization of operational parameters, performance, and structure of pilot-scale equipment. Furthermore, it provides foundational data pertinent to the future exploration of real-world industrial applications.","PeriodicalId":20324,"journal":{"name":"Polish Journal of Chemical Technology","volume":"30 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141611254","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

UV irradiation grafting of butyl acrylate on polyimide membrane for enhanced lubricant solvent recovery 紫外线辐照在聚酰亚胺膜上接枝丙烯酸丁酯以提高润滑剂溶剂回收效果

IF 1 4区工程技术

Polish Journal of Chemical Technology Pub Date : 2024-07-12 DOI: 10.2478/pjct-2024-0020

Huilong Shi, Deqing Shi, Bowen Liu, Chengshuai Li, Hongjie Chen

引用次数: 0

Response surface methodology approach for optimization of biosorption process for removal of Hg(II) ions by immobilized Algal biomass Coelastrella sp. 用响应面方法优化固定化藻类生物质 Coelastrella sp.

IF 1 4区工程技术

Polish Journal of Chemical Technology Pub Date : 2024-07-12 DOI: 10.2478/pjct-2024-0019

Ali Hussine AlSarji, Shurooq Talib Al-Humairi, Riyadh Sadeq AlMukhtar, Saja Mohsen Alardhi, Mohamed Sulyman, I.M.R. Fattah

{"title":"Response surface methodology approach for optimization of biosorption process for removal of Hg(II) ions by immobilized Algal biomass Coelastrella sp.","authors":"Ali Hussine AlSarji, Shurooq Talib Al-Humairi, Riyadh Sadeq AlMukhtar, Saja Mohsen Alardhi, Mohamed Sulyman, I.M.R. Fattah","doi":"10.2478/pjct-2024-0019","DOIUrl":"https://doi.org/10.2478/pjct-2024-0019","url":null,"abstract":"Currently, adsorption stands as a viable technique for the effective removal of pollutants such as heavy metals from water. Within this research endeavor, adapted green algae (Coelastrella sp.) have been harnessed as a sustainable and environmentally conscious adsorbent, employed in the removal of Hg(II) ions from a simulated aqueous solution via employment of an Airlift bioreactor. The analysis of the attributes of adsorbent was conducted through the utilization of Fourier transform infrared (FTIR) spectroscopy. The examination of residual concentrations of Hg(II) ions in the treated solution was accomplished through the utilization of atomic absorption spectroscopy (AAS). The impact of various experimental factors, including the duration of contact (ranging from 10 to 90 minutes), initial concentrations of Hg(II) ions (ranging from 500 to 2000 μg/l), quantity of adsorbent introduced (ranging from 0.1 to 0.7 g per 250 ml), temperature variations (ranging from 20 to 40 °C), and airflow velocity (ranging from 200 to 300 ml/min), was systematically examined. For the optimization of adsorption efficiency, MINITAB 18 software was employed. The equilibrium data was subjected to analysis using the Langmuir, Freundlich, and Temkin isotherm models. Employing the framework recommended by MINITAB 18, the optimal parameters for adsorption were identified as 2000 μg/l for initial concentration, 90 minutes for contact time, 40 °C for temperature, and 300 ml/min for airflow rate. The Langmuir equation yielded the highest adsorption capacity, measuring 750 μg/g at a temperature of 40 °C.","PeriodicalId":20324,"journal":{"name":"Polish Journal of Chemical Technology","volume":"27 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141611256","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