Russian Journal of Applied Chemistry最新文献_第4页

Hypergolic Propellants Based on High-Test Hydrogen Peroxide and Organic Compounds 基于耐高温过氧化氢和有机化合物的超醇推进剂

IF 0.6 4区化学

Russian Journal of Applied Chemistry Pub Date : 2024-06-10 DOI: 10.1134/S1070427223100014

Sh. L. Guseinov, S. G. Fedorov, V. A. Kosykh, V. A. Vaulin

引用次数: 0

Development of Effective Depressor Additives to Diesel Fuel, Based on Copolymers of Stearyl Methacrylate with Monomers of Various Structures 以甲基丙烯酸硬脂酯与不同结构单体的共聚物为基础，开发有效的柴油减压添加剂

IF 0.6 4区化学

Russian Journal of Applied Chemistry Pub Date : 2024-06-10 DOI: 10.1134/S1070427223100026

E. V. Kolyakina, M. V. Pavlovskaya, Yu. S. Pronina, S. D. Zaitsev, D. F. Grishin

引用次数: 0

Development of an Analytical Approach to Study the Surface Morphology and Roughness Analysis of Commercial Hydrotreating CoMo-γAl2O3 Catalysts via Atomic Force Microscopy (AFM) Analysis 开发一种分析方法，通过原子力显微镜 (AFM) 分析研究商用加氢处理 CoMo-γAl2O3 催化剂的表面形态和粗糙度分析

IF 0.9 4区化学

Russian Journal of Applied Chemistry Pub Date : 2024-06-10 DOI: 10.1134/s1070427224010051

Issam Mohammed Ali Shakir, Zaineb Falah Hassan

{"title":"Development of an Analytical Approach to Study the Surface Morphology and Roughness Analysis of Commercial Hydrotreating CoMo-γAl2O3 Catalysts via Atomic Force Microscopy (AFM) Analysis","authors":"Issam Mohammed Ali Shakir, Zaineb Falah Hassan","doi":"10.1134/s1070427224010051","DOIUrl":"https://doi.org/10.1134/s1070427224010051","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>In this work a fully analytical approach for atomic force microscopy (AFM) (non-contact mode) is proposed to determine surface roughness, morphology, and topography of two commercial CoMo-γAl<sub>2</sub>O<sub>3</sub> catalysts (Ketjenfine 124-3E and Ketjenfine 165) that are used in hydrotreating process (HTP) in Iraqi refineries. All parameters of the AFM image (amplitude, hybrid and spatial parameters) were discussed with a new insight and a detailed description of how the nano-particles were built in and distributed in hypothetical multi layers based on mathematical calculations of volume and surface area based on regarding that each individual grain has a sphere-like shape of a specific diameter. A clear relationship between grain number and average diameter was noticed, due to the increase in grain average diameter of KF124-3E (143.47 nm) comparing to that of KF165 (120.21) leads to make the density of grain distribution for the latter is greater than that of KF124. Surface area of total grains of Ketjenfine 124-3E and Ketjenfine 165 were 8 919 303.275 and 8 031 267.809 nm<sup>2</sup>, respectively. Higher roughness average (<i>S</i><sub>a</sub>) value of catalyst KF165 (18.4 nm) means the reactants will have more opportunity for complete reaction. Root mean square (<i>S</i><sub>q</sub>) values were 8.16 nm for KF124-3E and 21.5 nm for KF165 indicating that KF165 is rougher than KF124-3E. Surface skewness of KF124-3E and KF165 were 0.00031, –0.168, respectively. For both hydrotreating catalysts the surface kurtosis value (<i>S</i><sub>ku</sub>) was about ≤2.0 and the distribution curves is Platykurtic. Root means square slope (<i>S</i><sub>dq</sub>) for KF165 catalyst is 1.31 nm<sup>–1</sup>, which is approximately four times greater than that of KF124-3E (0.35 nm<sup>–1</sup>) indicating that KF165 has rougher surface profile.</p>","PeriodicalId":757,"journal":{"name":"Russian Journal of Applied Chemistry","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141190673","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Current Status and Future Prospects of Air Quality and Management in Petroleum Refineries: A Review 炼油厂空气质量和管理的现状与前景：综述

IF 0.9 4区化学

Russian Journal of Applied Chemistry Pub Date : 2024-06-10 DOI: 10.1134/s1070427224010014

Amjed R. Qarahgouli, Khalid A. Sukkar, Alaa M. Ali

{"title":"Current Status and Future Prospects of Air Quality and Management in Petroleum Refineries: A Review","authors":"Amjed R. Qarahgouli, Khalid A. Sukkar, Alaa M. Ali","doi":"10.1134/s1070427224010014","DOIUrl":"https://doi.org/10.1134/s1070427224010014","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The air quality in petroleum refineries is one of the most critical factors in the petroleum refining processes. Several parameters in the air usually have a direct influence on human health and the environment, including poisoning gases, vapors, and particulate matter (PMs). In the present study, the air quality was evaluated in petroleum refineries sites to provide more understanding of the effect of the presence of such polluted materials on the environment and the operator’s health in the refinery. It was found that petroleum refineries produce a series of fatal compounds such as sulfur compounds hydrocarbons (gases and vapors), and PM<sub>0.1</sub>, PM<sub>2.5</sub>, and PM<sub>10</sub>. All these materials have a solid impact on human health. It was found that they used many types of air filters, such as personal masks or central air filtration units reducing the concentration of such polluted material dramatically. Also, the results showed that the used crude oil (API) and sulfur contents are the main two important factors that reflect air quality. The high API crude oil with low sulfur compounds produces low polluted material in the air. Moreover, it was found that the modern refineries that used Euro-5 (eco-friendly design) produced fewer emissions with a cleaner environment in comparison with old versions of the refining design.</p>","PeriodicalId":757,"journal":{"name":"Russian Journal of Applied Chemistry","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141190670","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Acidic Influence on Geopolymerization: A Thorough Study Using HCl and Iraqi Kaolin 酸性物质对土工聚合的影响：使用盐酸和伊拉克高岭土进行的深入研究

IF 0.9 4区化学

Russian Journal of Applied Chemistry Pub Date : 2024-06-10 DOI: 10.1134/s1070427224010105

Tuqa A. Jabar, Mohammed A. Alzuhairi, Mayyadah S. Abed

{"title":"Acidic Influence on Geopolymerization: A Thorough Study Using HCl and Iraqi Kaolin","authors":"Tuqa A. Jabar, Mohammed A. Alzuhairi, Mayyadah S. Abed","doi":"10.1134/s1070427224010105","DOIUrl":"https://doi.org/10.1134/s1070427224010105","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>Recent advances have drawn the attention of many researchers in the creation of innovative catalysts that are not only effective but also cost-effective and ecologically benign. The large similarity between the geopolymers and zeolitic materials makes geopolymers suitable for catalytic applications. This research works on preparing geopolymer catalysts utilizing two different types of Iraqi kaolin (white and red kaolin) with six different mixes. Additionally, the hydrochloric acid (2M) treatment was conducted on the geopolymer base kaolin to increase surface area, and catalytic activity (improving the adsorption capacity) makes geopolymer more suitable for catalyst applications. The characterization of the geopolymer involved techniques such as XRD, XRF, FTIR, and BET. FTIR results showed changes in OH group structures (increase Brønsted & Lewis acid sites) essential for catalyst applications. XRD results indicated the presence of zeolite and Annite-phase along with amorphous phases. BET analysis of large increased surface area and pore size in acid-treated geopolymers. This research suggests the potential for improving inexpensive geopolymer catalysts, opening the door to cost-effective, sustainable, and high-performance catalysts for use in industries requiring porous materials and heavy oil processing, and paving the way for a greener and more environmentally conscious future.</p>","PeriodicalId":757,"journal":{"name":"Russian Journal of Applied Chemistry","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141190831","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Biodiesel Production from Macroalgae: A Mini-Review 利用大型藻类生产生物柴油：微型综述

IF 0.9 4区化学

Russian Journal of Applied Chemistry Pub Date : 2024-06-10 DOI: 10.1134/s1070427224010087

Wasan Hamza Hasan, Ali A. Jazie

{"title":"Biodiesel Production from Macroalgae: A Mini-Review","authors":"Wasan Hamza Hasan, Ali A. Jazie","doi":"10.1134/s1070427224010087","DOIUrl":"https://doi.org/10.1134/s1070427224010087","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The production of biodiesel from macroalgae using base catalysts is gaining interest in sustainable energy. Biodiesel generation from macroalgae uses several methods, but this research focuses on base catalysts. The paper begins with a detailed overview of bio-diesel production and its usefulness as an eco-friendly fossil fuel alternative. It then examines macroalgae and their role in biodiesel production. Macroalgae’s abundance, rapid growth, and lack of rivalry with food crops are all discussed in the article. Additionally, it solves extraction efficiency and production cost constraints. The review focuses on alkaline catalysts for macroalgae biodiesel production. The benefits of solid-base catalysts over liquid-base catalysts make them suitable biodiesel catalysts. These benefits include increased process efficiency, catalyst recovery, waste reduction, and environmental impact reduction. Overall, this offers an extensive examination of the process of producing biodiesel from macroalgae with base catalysts. This study emphasises the capacity of macroalgae as a renewable resource and offers valuable information on the methods to enhance efficiency and address environmental concerns for the effective use of this technology.</p>","PeriodicalId":757,"journal":{"name":"Russian Journal of Applied Chemistry","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141190836","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Spectroscopic Method for Studying the Morphology of Latexes 研究胶乳形态的光谱方法

IF 0.6 4区化学

Russian Journal of Applied Chemistry Pub Date : 2024-06-10 DOI: 10.1134/S1070427223100051

A. I. Markova, A. I. Ivanova, M. D. Malyshev, S. D. Khizhnyak, P. M. Pakhomov

引用次数: 0

Effect of Polyfluorinated Alcohols on Properties of Polyvinyl Alcohol Cryogels 多氟醇对聚乙烯醇冷凝胶特性的影响

IF 0.6 4区化学

Russian Journal of Applied Chemistry Pub Date : 2024-06-10 DOI: 10.1134/S1070427223100038

V. N. Manzhai, M. S. Fufaeva, V. G. Bondaletov

引用次数: 0

A Review of Corrosion Inhibition of Carbon Steel Using Fruit, Vegetable and Rice Husk Extract 利用水果、蔬菜和稻壳提取物抑制碳钢腐蚀的综述

IF 0.9 4区化学

Russian Journal of Applied Chemistry Pub Date : 2024-06-10 DOI: 10.1134/s1070427224010117

Hajir Amer Jaddoa, Jamal M. Ali, Basheer A. Abdulhussein

{"title":"A Review of Corrosion Inhibition of Carbon Steel Using Fruit, Vegetable and Rice Husk Extract","authors":"Hajir Amer Jaddoa, Jamal M. Ali, Basheer A. Abdulhussein","doi":"10.1134/s1070427224010117","DOIUrl":"https://doi.org/10.1134/s1070427224010117","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The global impact of metal corrosion is significant, as it poses both economic and environmental repercussions. The corrosion refers to the process by which metals undergo surface degradation due to an electrochemical reaction with the surrounding intrusive environment, leading to its initiation and acceleration. Corrosion inhibitors are widely recognized as the most effective and cost-efficient method for preventing corrosion. The utilization of conventional and harmful corrosion inhibitors has led to environmental concerns, prompting the creation of eco-friendly, readily available, biodegradable, and economically efficient green substitutes. This review examines the utilization of green corrosion inhibitors sourced exclusively from renewable origins, focusing specifically on recent progress in employing extracts from fruits, vegetables, and rice peels as green corrosion inhibitors. Fruits and vegetables, specifically, contain abundant phytochemicals with corrosion-inhibiting properties. The experimental methodologies employed in corrosion inhibition, along with the underlying mechanism of corrosion inhibition, are extensively examined to elucidate the actual capabilities of these extracts in safeguarding steel in acidic surroundings. The study emphasizes the capacity of fruit and vegetable extracts to serve as environmentally friendly and economical substances that can prevent corrosion, thus contributing to the advancement of green chemistry. This review focuses on the most important inhibitors removed from the peels of fruits, vegetables, and rice, where an efficiency of 98.8% was achieved.</p>","PeriodicalId":757,"journal":{"name":"Russian Journal of Applied Chemistry","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141198077","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Complex Compound of Mechanochemically Modified Humic Acids and Fe(III) as a Base of a Geochemical Barrier 作为地球化学屏障基底的机械化学修饰腐植酸和铁(III)复合物

IF 0.6 4区化学

Russian Journal of Applied Chemistry Pub Date : 2024-06-10 DOI: 10.1134/S107042722310004X

E. V. Linkevich, N. V. Yudina

引用次数: 0