Azerbaijan Journal of Chemical News

About Azerbaijan Journal of Chemical News

Azerbaijan Journal of Chemical News (AJCNEWS) is approved by the Higher Attestation Commission under the President of Azerbaijan Republic and is included in the list of journals and periodicals that should be published for major scientific results of dissertations in Azerbaijan Republic.

The journal provides a platform for publishing high-quality research in chemistry, chemical technology, and related fields. Our repository serves the academic and research community by providing open access to peer-reviewed articles and scholarly works.

AJCNEWS covers various development directions of fundamental chemical science and scientific achievements in the field of working out high technologies for manufacturing important chemical products and new materials.

Current Issue - Volume 7, No. 2 (2026)

Obtaınıng bıoactıve compounds from pomegranate peel waste

Authors: Gunel Amanullayeva

Volume 7 , Issue 2 | Pages: 27-32

DOI: 10.32010/AJCN04022025-26

Abstract: The research work shows the advantages of recycling pomegranate peels, which are considered environ... The research work shows the advantages of recycling pomegranate peels, which are considered environmental waste. The possibility of obtaining valuable bioactive substances from them has been shown. The substances obtained during extraction are biologically active compounds with a wide range of applications. Ethyl acetate, which is widely used in the food industry, was chosen for the extraction process of pomegranate peels. The extraction process was carried out by the Soxhlet method at 60-77  C. After removing the solvent from the obtained extract, a dark brown resin was obtained. The solubility of pomegranate peel in ethyl acetate was 64.7% according to the results. The main purpose of this work is to identify the functional groups belonging to the bioactive compounds in the composition of the ethyl extract of pomegranate peel. The ethyl acetate extract of pomegranate peel was studied using an IR- FURYE spectrometer. In the spectrum, 4 peaks corresponding to the wavelength of the aliphatic CH bond in alkyl groups were observed in the region of 2984.41 - 2878.28 cm-1. The absorption band at 1738.58 cm-1 was attributed to the broad OH group in carboxylic acids Read more

Development of antı-knock addıtıves for automotıve gasoline

Authors: Elshan Zeynalov,Mahammad Huseynov

Volume 7 , Issue 2 | Pages: 55-59

DOI: 10.32010/AJCN04022025-52

Abstract: The efficient and reliable operation of modern automobile engines directly depends on the quality of... The efficient and reliable operation of modern automobile engines directly depends on the quality of the gasoline used in the fuel system. One of the main technological characteristics of gasoline is its knock resistance, that is, its resistance to self-ignition under high compression ratios. The knock process leads to a decrease in engine power, incomplete combustion of fuel, energy loss, as well as damage to the piston, valves, and cylinder walls. Therefore, the production of gasoline characterized by a high octane number is of special importance for extending the service life of engines and ensuring compliance with environmental regulations. The present study investigated the effect of various oxygenate blends (MTBE and IBA ) on the octane number of automotive gasoline. The effectiveness of these oxygenates was increased due to the emergence of a synergistic effect when they were blended. A synergistic effect was observed with the combined action of a two-component mixture of MTBE and IBS in ratios of 20–80 and 80–20 wt.%, respectively, resulting in an increase in the octane number of gasoline fractions to 1.3–2.0 units compared to that of individual oxygenates. Read more

Keywords: automotive gasoline, additives, oxygenates, octane number, synergistic effect.

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Influence of the binder type and quantity on physical, mechanical and thermal properties of shale waste briquettes

Authors: Elvira Guseinova

Volume 7 , Issue 2 | Pages: 46-54

DOI: 10.32010/AJCN04022025-44

Abstract: This study investigates the influence of different binding agents—petroleum pitch, coal tar pitch, a... This study investigates the influence of different binding agents—petroleum pitch, coal tar pitch, and bitumen BND 50/70—on the physicomechanical and thermotechnical properties of shale briquettes produced from fine shale fractions. The results demonstrate that the nature and amount of the binder play a decisive role in the formation of the structural framework, mechanical strength, thermal stability, and energy efficiency of the briquetted fuel. The increase in binder content from 5 to 15 wt.% leads to a consistent rise in density, compressive strength, and calorific value, alongside a decrease in porosity, water absorption, and ash content. Coal tar pitch was found to be the most effective binder, providing the highest mechanical strength (3.0–5.5 MPa), lowest water absorption (8–16%), reduced abrasiveness, and the maximum lower heating value (11.2–13.4 MJ/kg). Its high aromaticity and tendency toward carbonization contribute to the formation of a dense coke residue, ensuring long-lasting and stable combustion. Petroleum pitch exhibited moderate performance in both mechanical and thermotechnical parameters and can serve as a balanced and economically feasible binding agent. Bitumen BND 50/70 resulted in briquettes with the lowest strength, highest porosity and water absorption, and the least stable combustion behavior due to its high volatile content and limited carbonization capability. The obtained results confirm a strong correlation between the chemical nature of the binder, its thermal decomposition behavior, and the resulting performance characteristics of shale briquettes. These findings allow for the targeted optimization of briquette formulations depending on their intended application—ranging from high-strength, thermally stable industrial fuel to low-cost, rapidly igniting briquettes for domestic use. Read more

Keywords: shale briquettes; binder; petroleum pitch; coal tar pitch; bitumen BND 50/70; physicomechanical properties; thermotechnical characteristics; thermal stability; energy efficiency; briquette structure.

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Investıgatıon of the affect of catalyst addıtıve on catalytıc crackıng process

Authors: Gulshan Dadayeva, Zuleykha Asgarova, Elchin Mammadov

Volume 7 , Issue 2 | Pages: 38-43

DOI: 10.32010/LSWI8747

Abstract: The study of using non-traditional feedstock resources for the catalytic cracking process enables th... The study of using non-traditional feedstock resources for the catalytic cracking process enables the processing of a wide range of raw materials, as well as the possibility of regulating selectivity toward various feedstocks. In this regard, the introduction of a Mo catalyst additive— prepared by mixing paramolybdate solution (PMS) with an activating ammonium sulfide solution— into the selected feedstock for the catalytic cracking process leads to the formation of molybdenum disulfide (MoS₂), which is a conventional hydrotreating catalyst component under cracking conditions. This compound exhibits catalytic activity in hydrogenation and hydrocracking reactions. In the presence of the additive, the optimal process conditions correspond to a temperature of 500 °C and an additive concentration of 0.05 wt%. The introduction of the catalyst additive into the feedstock increases the overall acidity of the catalyst from 23.6 to 47.2 µmol during cracking. Moreover, the acidity level of the catalyst and the ratio of acid sites of different strengths intensify the cracking of the feedstock, thereby facilitating the effective progression of reactions during the process. Read more

Keywords: Pyrolysis gas, catalytic cracking, Mo catalyst additive, light gas oil fraction, regeneration, vacuum distillate.

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Accumulation of organometallic compounds on the zcc surface under conditions of catalytic oxycracking

Authors: Elvira Guseinova, Samira Safarova, Maya Abdullayeva, Gakhraman Hasanov

Volume 7 , Issue 2 | Pages: 31-37

DOI: 10.32010/LYIT8232

Abstract: The paper presents the results of studying the accumulation of organometallic compounds on the surf... The paper presents the results of studying the accumulation of organometallic compounds on the surface of a zeolite-containing catalyst (ZCC) during the catalytic oxycracking of heavy hydrocarbon raw materials. The aim of the study was to determine the nature and degree of accumulation of trace elements that can affect the activity and stability of the catalyst. The experiments were carried out at a temperature of 500 °C, an oxygen concentration of 1 %, a contact time of 1.2-2 s, and a process duration of 900 s. The elemental composition of the catalyst surface before and after catalysis was studied by energy-dispersive microanalysis (EDM). It is established that during the process, the accumulation of trace elements Fe, Ni, Cr, and Ca occurs on the surface of the catalyst Ca, due to their migration from the raw material. As the contact time increases, the Fe content increases to 2.3%, Cr to 0.1%, Ni to 0.04%, and Ca to 0.02 %. The obtained values are significantly lower than the known critical levels at which the active sites of the catalyst are deactivated. This allows us to conclude that the accumulation of metals on the surface of ZCCs is not the main reason for the decrease in its activity during catalytic oxycracking, and decontamination is associated with other factors that require further study Read more

Keywords: catalytic oxycracking, zeolite-containing catalyst, organometallic compounds, energy dispersion analysis, iron, nickel, chromium, calcium, catalyst deactivation

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The synthesis of new polymer composites based on oil porphyrins

Authors: Minira Aghahuseynova, Maleyka Azizova

Volume 7 , Issue 2 | Pages: 18-25

DOI: 10.32010/PLXM5922

Abstract: This research on the synthesis of composite materials based on heavy oil residues possesses scienti... This research on the synthesis of composite materials based on heavy oil residues possesses scientific novelty in several aspects. In the contemporary stage of industrial development, the increasing waste load of the oil refining industry, along with the growing demand for high-performance and durable materials, necessitates new approaches for scientific and technological advancement. For the first time, polymer composites have been developed based on petroleum porphyrins isolated from asphaltene–resin–paraffin residues. A new synthesis method for polymer composite materials based on petroleum porphyrins isolated from the asphaltene–resin–paraffin residues of the Buzovna field has been proposed. This approach contributes to solving the environmental problem associated with the utilization of heavy oil residues. The observed spectroscopic changes can be explained by the fact that the immobilization of the porphyrin occurs through the formation of ionic bonds between the functional groups of the porphyrin and the positively charged nitrogen atoms of chitosan, resulting in the formation of an insoluble polyelectrolyte complex. Thus, the results indicate that only chitosan effectively binds to the porphyrin, whereas methylcellulose remains inert. Read more

Keywords: composite material, oil residues, chitosan, methylcellulose, biocompatible polymer.

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Isotherm adsorption studies of Cd (ii) ion removal from aqueous solutions by modified rubber- based adsorbent

Authors: Israfil Movsumzada,Tahir Javadzade, Khalilova Fergana, Famil Chiragov

Volume 7 , Issue 2 | Pages: 5-13

DOI: 10.32010/RWAO8703

Abstract: This work is dedicated to adsorption study of Cd (II) ions by 1-[1-Methyl-2- (methylamino) ethyl] t... This work is dedicated to adsorption study of Cd (II) ions by 1-[1-Methyl-2- (methylamino) ethyl] thiourea modified synthetic rubber. The impact of pH, contact time, initial metal ion concentration were among the several parameters influencing the adsorption process that was studied throughout the research. The highest adsorption capacity was achieved with 593.47 mg/g at pH=3 after modification with new thiourea derivative. Five adsorption isotherm models were examined to explain the adsorption process, and it was found that results are in agreement with the Redlich–Peterson Isotherm. The Temkin model was examined and found that there is chemical adsorption occurs in the adsorbent-adsorbate system. Desorption study are also included in this paper to study regeneration property of the adsorbent. So, 0.5 mol/l H3PO4 has demonstrated the maximum desorption capability over Cd (II) ions Read more

Keywords: adsorption, Cd (II), modification, isotherm, modification, thiourea

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