Iranian Journal of Chemistry & Chemical Engineering-international English Edition最新文献

Thermodynamic Modeling the Solubility of CO2 in the Binary and Three-Component Aqua System of Methyldiethanolamine (MDEA) Using the N-Wilson-NRF 用N-Wilson-NRF模拟CO2在二元和三组分甲基二乙醇胺(MDEA)水体系中的溶解度

IF 1.8 4区工程技术

Iranian Journal of Chemistry & Chemical Engineering-international English Edition Pub Date : 2021-11-10 DOI: 10.30492/IJCCE.2021.128447.4158

M. Abdolmajidi, Ali Hasani Jooshaghani, A. Cheraghi, A. Haghtalab

引用次数: 0

The high performance of diethylhydroxylamine in comparison with hydrazine for the removal of dissolved oxygen from boilers of power plant 比较了二乙基羟胺与肼对电厂锅炉中溶解氧的去除效果

IF 1.8 4区工程技术

Iranian Journal of Chemistry & Chemical Engineering-international English Edition Pub Date : 2021-11-09 DOI: 10.30492/IJCCE.2021.531402.4771

M. Sarmadi, Amirhossien Hasan Ahi, N. Esmaile, Mohammad Reza Gohari Darabkhani

{"title":"The high performance of diethylhydroxylamine in comparison with hydrazine for the removal of dissolved oxygen from boilers of power plant","authors":"M. Sarmadi, Amirhossien Hasan Ahi, N. Esmaile, Mohammad Reza Gohari Darabkhani","doi":"10.30492/IJCCE.2021.531402.4771","DOIUrl":"https://doi.org/10.30492/IJCCE.2021.531402.4771","url":null,"abstract":"In boilers and hot water heating systems, hydrazine is used as one of the powerful reducing agents for eliminating oxygen. Due to the toxicity and carcinogenicity of this material, a suitable replacement named diethylhydroxylamine (DEHA) can be used. DEHA has low acute toxicity and animal tests do not show mutagenic activity. In this study, hydrazine and DEHA as deoxygenation materials were used in boilers of Tarasht power plant in Iran (Tehran). In different months (May to November), deoxygenation was examined by these two substances. The oxygen removal value of DEHA was equal to hydrazine and sometimes far better than it. The rate of deoxygenation reaction of DEHA was 40 ppb in most months of the year, but the number of peaks in hydrazine was greater (2 peaks with 50 ppb and 1 peak with 60 ppb). Hydrazine analysis is time-consuming, as well as pollutes the environment. On the other hand, DEHA of tests were completed sooner. Also, DEHA as an economical material with low toxicity can be a good alternative to hydrazine in boilers. This material can prevent boiler corrosion by oxygen removal.","PeriodicalId":14572,"journal":{"name":"Iranian Journal of Chemistry & Chemical Engineering-international English Edition","volume":"7 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2021-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76989552","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

Morpho-structural characterization and electrophoretic deposition of xonotlite obtained by a hydrothermal method 水热法获得的硬硅橄榄岩的形态结构表征和电泳沉积

IF 1.8 4区工程技术

Iranian Journal of Chemistry & Chemical Engineering-international English Edition Pub Date : 2021-11-09 DOI: 10.30492/IJCCE.2021.131277.4241

M. Randjelović, Jelena Čović, Ivana Jovanović, A. Zarubica, A. Bojić

{"title":"Morpho-structural characterization and electrophoretic deposition of xonotlite obtained by a hydrothermal method","authors":"M. Randjelović, Jelena Čović, Ivana Jovanović, A. Zarubica, A. Bojić","doi":"10.30492/IJCCE.2021.131277.4241","DOIUrl":"https://doi.org/10.30492/IJCCE.2021.131277.4241","url":null,"abstract":"In this research, xonotlite was synthesized by a hydrothermal method in the Si-Ca-Na-H2O system. Detailed structural characterization by using XRD technique revealed that obtained material contains a small quantity of wollastonite (up to 3 %) as impurity. Calcination of the obtained sample at 900 ˚C has resulted in complete transformation of xonotlite to wollastonite which was detected as only crystal phase. Crystallite size and lattice strain of all crystal phases were calculated using Scherrer and Williamson-Hall method. SEM observation of xonotlite morphology revealed tiny needle-like crystals joined together forming dendritic or globular aggregates. Optimal conditions for electrophoretic deposition of xonotlite on 304 type stainless steel have been achieved by appropriate selection of electric field strengths, dispersing medium and dispersants. Stable suspension of material was obtained using isopropanol containing 1 % water as dispersing medium and Ca-nitrate as charging additive. Native layers of xonotlite have a very smooth morphology, while after calcination, the appearance of small cracks in the coating can be observed but the adhesion strength of the coatings to the substrate is improved.","PeriodicalId":14572,"journal":{"name":"Iranian Journal of Chemistry & Chemical Engineering-international English Edition","volume":"92 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2021-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84663604","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

Acoustofluidic separation of microparticles: a numerical study 微颗粒声流分离的数值研究

IF 1.8 4区工程技术

Iranian Journal of Chemistry & Chemical Engineering-international English Edition Pub Date : 2021-11-09 DOI: 10.30492/IJCCE.2021.535756.4876

M. Bayareh, B. Ghasemi, Mohsen Nazemi Ashani

引用次数: 1

A 2E Analysis and Optimization of a Hybrid Solar Humidification-Dehumidification Water Desalination System and Solar Water Heater 太阳能加湿-除湿混合海水淡化系统与太阳能热水器的2E分析与优化

IF 1.8 4区工程技术

Iranian Journal of Chemistry & Chemical Engineering-international English Edition Pub Date : 2021-11-09 DOI: 10.30492/IJCCE.2021.535474.4870

Mohammad Javad Bazregari, N. Norouzi, Mahdi Gholinejad, E. Khavasi, M. Fani

{"title":"A 2E Analysis and Optimization of a Hybrid Solar Humidification-Dehumidification Water Desalination System and Solar Water Heater","authors":"Mohammad Javad Bazregari, N. Norouzi, Mahdi Gholinejad, E. Khavasi, M. Fani","doi":"10.30492/IJCCE.2021.535474.4870","DOIUrl":"https://doi.org/10.30492/IJCCE.2021.535474.4870","url":null,"abstract":"This study presents an energy-exergy analysis of a Humidification-Dehumidification (HD) solar water desalination system. The extensive application of the HD system lies in its low energy consumption and ability to exploit solar energy to supply all the heat energy demands. The unsteady governing equations were solved until the system reached a steady state. The simulations were done with the Euler approach to solving the system of energy balance equations numerically. This study's main goal was to investigate the effect of different configurations of the hybrid system and various operating conditions on the performance of the solar HD water desalination system. The optimum configuration was selected based on thermodynamic and exergy analyses. The effects of important parameters such as inlet water and air mass flow rate in the humidifier and dehumidifier water temperature and mass flow rate on the system's operation were studied. This paper also explored the feasibility of the extra heat as a domestic water heater under various conditions. Based on exergy analysis, it is shown that the solar desalination system with air-water preheater with the power of 1057.9 W had the most exergy destruction in comparison with the two other systems (i.e., water preheater system and air preheater system with the respective exergy destructions of 901.3 W and 75.3 W). Comparing the values of freshwater production, exergy destruction, and exergy efficiency, the solar system with a water preheater was selected as the optimum one.","PeriodicalId":14572,"journal":{"name":"Iranian Journal of Chemistry & Chemical Engineering-international English Edition","volume":"89 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2021-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85870211","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: 3

COMPARATIVE STUDY ON STRUCTURING AND PHOTOCATALYTIC ACTIVITY OF NANOTITANIA EMBOSSED WITH ORGANIC EXTRACTS 有机萃取物压印纳米二氧化钛的结构及光催化活性比较研究

IF 1.8 4区工程技术

Iranian Journal of Chemistry & Chemical Engineering-international English Edition Pub Date : 2021-11-03 DOI: 10.30492/IJCCE.2021.534762.4856

N. Saikumari

引用次数: 0

Preparation, in-vitro evaluation, and delivery of colchicine via polyacrylamide hydrogel 制备，体外评价，并通过聚丙烯酰胺水凝胶传递秋水仙碱

IF 1.8 4区工程技术

Iranian Journal of Chemistry & Chemical Engineering-international English Edition Pub Date : 2021-11-03 DOI: 10.30492/IJCCE.2021.533974.4830

H. Liu, Xiaoxia Li, Yangyang Li, Min Wang, Fanjun Meng, Jinling Huang, Rui Yu, Yang Wang

{"title":"Preparation, in-vitro evaluation, and delivery of colchicine via polyacrylamide hydrogel","authors":"H. Liu, Xiaoxia Li, Yangyang Li, Min Wang, Fanjun Meng, Jinling Huang, Rui Yu, Yang Wang","doi":"10.30492/IJCCE.2021.533974.4830","DOIUrl":"https://doi.org/10.30492/IJCCE.2021.533974.4830","url":null,"abstract":"Hydrogels have excellent biocompatibility and are widely used in biomedical applications. However, it is still a challenge to build a hydrogel with outstanding mechanical properties and multiple functions. In this study, a polyacrylamide (PAM) hydrogel with a uniform network structure was achieved through an ultraviolet (UV)-responsive organic crosslinking agent, and a higher mechanical strength PAM-Ag+ hydrogel was designed through the introduction of silver ion by metal coordination interaction. Various contents of N'N-bis(acryloyl)cysteamine (BACA) as cross-linker, acrylamide (AM) as monomer, and Irgacure 2959 as initiator were investigated to have an optimal combination of high strength. Thus, the PAM-Ag+ hydrogel exhibited excellent adhesive behavior that could be fixed to the human forearm and any part of the skin, such as the finger and elbow joint. In addition, the properties and biocompatibility evaluations of the tough hydrogel in medical wound dressing were investigated. Meanwhile, these results showed that PAM-Ag+ hydrogels possess high stretchable (2600%) and mechanical robust (2.55 MPa) properties. Excitingly, the release of colchicine (Col) more than 95% in 48 h demonstrated the hydrogel highly potential in medical dressing and drug release applications in virtue of the excellent moisture retention, permeability, water tightness, swelling ratio, and biocompatibility.","PeriodicalId":14572,"journal":{"name":"Iranian Journal of Chemistry & Chemical Engineering-international English Edition","volume":"10 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2021-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78585922","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

Fluorescence determination of acrylamide in potato chips based on P540 and P503 fluorescent reagents 基于P540和P503荧光试剂的薯片中丙烯酰胺的荧光测定

IF 1.8 4区工程技术

Iranian Journal of Chemistry & Chemical Engineering-international English Edition Pub Date : 2021-11-03 DOI: 10.30492/IJCCE.2021.109173.3622

Leila Baharinikoo, M. Chaichi, M. Ganjali

{"title":"Fluorescence determination of acrylamide in potato chips based on P540 and P503 fluorescent reagents","authors":"Leila Baharinikoo, M. Chaichi, M. Ganjali","doi":"10.30492/IJCCE.2021.109173.3622","DOIUrl":"https://doi.org/10.30492/IJCCE.2021.109173.3622","url":null,"abstract":"Acrylamide is one of the potential environmental public health problems, resulting from its increased accumulation in the process of cooking foods content high level of carbohydrates that are fried or cooked at high temperatures. So, developing a precise and sensitive analytical method for detecting and determining acrylamide in foods is absolutely necessary and inevitable. Gas chromatography (GC) and liquid chromatography (LC) are two main laboratory techniques for acrylamide determination. In this study, we tried to use a cheaper, faster, accurately method for measuring acrylamide in real food samples. P540 and P503 were used as fluorescent reagent to detect the concentration of acrylamide in potato chips samples from 4 companies. Fluorescence spectroscopy was used in this work. The results obtained for the detection of acrylamide in comparison with the HPLC-MS method showed that there is an acceptable overlap between the fluorescence spectroscopy and HPLC method. The amount of acrylamide in four potato chips samples, obtained from the market in Tehran city, was determined using the proposed method. The optimum values of different parameters, were determined. Comparison between two methods, HPLC-MS and fluorescence spectroscopy were also described. The figures of merit for the proposed method were at the ideal range. The developed methods showed a high correlation coefficient (R2= 0.991). According to the results of the fluorescence emission spectroscopy and its comparison with HPLC-MS, performance and reliability of proposed method as a simple, efficient and rapid method with reduction of cost and time for determining acrylamide in potato chip samples were demonstrated.","PeriodicalId":14572,"journal":{"name":"Iranian Journal of Chemistry & Chemical Engineering-international English Edition","volume":"67 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2021-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76085625","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

Simulation and exergy and exergoeconomic analysis of an associated gas GTL recovery plant (Case study: 4 and 5 phases of South Pars) 伴生气GTL回收厂的模拟及火用和火用经济分析(案例研究:南帕尔斯4期和5期)

IF 1.8 4区工程技术

Iranian Journal of Chemistry & Chemical Engineering-international English Edition Pub Date : 2021-11-03 DOI: 10.30492/IJCCE.2021.527548.4663

N. Norouzi, Ghassem Valizadeh, Mohammad Hossein Hemmati, Zahra Jafarabadi, M. Fani

{"title":"Simulation and exergy and exergoeconomic analysis of an associated gas GTL recovery plant (Case study: 4 and 5 phases of South Pars)","authors":"N. Norouzi, Ghassem Valizadeh, Mohammad Hossein Hemmati, Zahra Jafarabadi, M. Fani","doi":"10.30492/IJCCE.2021.527548.4663","DOIUrl":"https://doi.org/10.30492/IJCCE.2021.527548.4663","url":null,"abstract":"In the last one hundred years, the increase in the use of fossil fuels in various industries, including refineries, petrochemicals, industrial complexes, etc., to achieve more production, has led to an increase in various pollutants in the world and environmental concerns, various economic costs, and health costs. Imposed on human beings. One of the most important sources of environmental pollution is industrial fluoride gases. According to global statistics, Iran is known as the third country to burn these gases. Reducing the emissions of these gases is one of the great goals of the international community. It seems necessary to study various methods such as converting gas to liquid to recover Flare gas. This research has simulated a gas-to-liquid conversion unit using the Flare gas output data of the south pars natural gas processing plant in Aspen Hysys V11 software. This unit is then evaluated and optimized by the exergy analysis method. The simulation output shows that when Flare gas is used to liquid the unit’s raw material, 1549 barrels of gas to liquid products per day will be obtained from this unit. Investigation of this case shows that one of the appropriate solutions to recover Flare gas can be to create a gas to the liquid conversion unit with energy and exergy efficiency of 65% and 69%.","PeriodicalId":14572,"journal":{"name":"Iranian Journal of Chemistry & Chemical Engineering-international English Edition","volume":"6 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2021-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89375796","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

Reduction in Noise Pollution of a Gas Power Plant under Construction Using Synthesis of Copper and Nickel Alloy Foam in a Simulated Setting 模拟环境下合成铜镍合金泡沫降低在建燃气电厂噪声污染

IF 1.8 4区工程技术

Iranian Journal of Chemistry & Chemical Engineering-international English Edition Pub Date : 2021-11-03 DOI: 10.30492/IJCCE.2021.139680.4423

M. Sarmadi, P. Nassiri, F. Razavian, B. Khoshmanesh

引用次数: 1