Article
Energy & Fuels
Lante Antonio Carbognani Ortega, Josune Carbognani Arambarri, Julie K. Rodriguez Guerrero, Pedro Pereira-Almao
Summary: The presence of oxygenated compounds affects both physical and simulated distillation of wood-derived biocrudes. Physical distillation is challenging due to the biocrude's thermal reactivity, making it better suited for partially upgraded, deoxygenated biocrudes. Gas chromatography simulated distillation is affected by the elution and burning properties of oxygenates, requiring correction factors to align it with physical distillation. Despite the challenges of insoluble biocrude fractions, corrected simulated distillation is found to be more suitable for process monitoring.
Article
Energy & Fuels
Aleksandar Bojkovic, Florence H. Vermeire, Maja Kuzmanovic, Hang Dao Thi, Kevin M. Van Geem
Summary: The analysis techniques for petroleum fractions have advanced significantly in the past decade, allowing for more precise understanding of the molecular composition of complex systems. The combination of various mass spectrometry techniques has enabled accurate quantification of compounds in fractions, facilitating detailed characterization of petrochemical systems. These developments have not gone unnoticed in the petrochemical and petrochemical kinetic modeling societies.
Article
Energy & Fuels
Qian Liu, Sasha Yang, Zhenyu Liu, Qingya Liu, Lei Shi, Wei Han, Le Zhang, Mingfeng Li
Summary: A novel method for determining oil boiling point distributions by thermal gravimetric analysis coupled online with a mass spectrometer is reported in this study. Results show less than 10% difference compared to those obtained by gas chromatography simulated distillation. The initial temperature of cracking reaction when oil evaporates in thermal gravimetric analysis, and the relationship between the initial cracking temperature and the stable radical concentration of oil were determined.
Article
Chemistry, Multidisciplinary
Dicho Stratiev, Ivelina Shishkova, Mihail Ivanov, Rosen Dinkov, Georgi Argirov, Svetlin Vasilev, Dobromir Yordanov
Summary: This study employed HTSD and physical vacuum distillation methods to characterize different vacuum distillates and found that HTSD method is suitable for accurately determining the diesel fraction content in heavy oils. The extraction of diesel fraction from H-Oil heavy distillates using HTSD could lead to oil refining profit improvement in the amount of six digits USD per year.
APPLIED SCIENCES-BASEL
(2022)
Article
Environmental Sciences
Ziyi Wang, Zhiqiang Gong, Zhenbo Wang, Xiaoyu Li, Jixiang Liu, Chen Tang, Zhiwei Chu
Summary: Pyrolysis can harmlessly treat petroleum sludge and recover energy materials in a short period. The pyrolysis temperature has a significant effect on the composition of the products, with higher temperatures favoring the production of small molecule products. The pyrolysis treatment shows good curing effect on chromium.
ENVIRONMENTAL TECHNOLOGY
(2022)
Article
Biochemical Research Methods
Colin W. Taylor, Stephen A. Bowden
Summary: Gas chromatography mass spectrometry (GC-MS) is commonly used for organic geochemistry, but helium, the most commonly used carrier gas, is becoming scarce and unsustainable. Hydrogen is a potential alternative, but its flammability and increasing demand make it less practical. This study shows that nitrogen can be used as a carrier gas for GC-MS analysis, although it has lower sensitivity than helium. Nitrogen can be used in applications where low levels of detection are not needed, such as the characterization of crude oil or food samples.
JOURNAL OF CHROMATOGRAPHY A
(2023)
Article
Engineering, Chemical
Ignaty Efimov, Vladimir G. Povarov, Viacheslav A. Rudko
Summary: This study investigates the potential use of a two-phase hexane-acetonitrile system in gas chromatography analysis for identifying middle distillate petroleum products containing polar organic compounds. By calculating partition coefficients, the optimal method for predicting the partition coefficients of petroleum products in the hexane-acetonitrile system was determined.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Article
Food Science & Technology
Qi Lin, Hui Ni, Ling Wu, Shu Yi Weng, Lijun Li, Feng Chen
Summary: This study identified various aromatic compounds released during the boiling process of white tea, including green, floral, roasted, and woody notes, as well as a subtle sweet note.
FOOD SCIENCE & NUTRITION
(2021)
Article
Materials Science, Multidisciplinary
Junhua Jiang, John Stempien, Yaqiao Wu
Summary: The influence of three fission products Sr, Eu, and I on the oxidation of IG-110 nuclear graphite was studied. The introduction of these three compounds significantly decreased the onset temperature for the oxidation of graphite, with NaI being the most active compound.
JOURNAL OF NUCLEAR MATERIALS
(2023)
Article
Energy & Fuels
Saroj K. Panda, Donya A. Alsewdan, Munther M. Alshammari, Qasim Saleem, Dominic J. Kearney
Summary: Aromatics in petroleum mixtures are important in various aspects including exploration, refining, and environmental emissions. This study presents a simple and fast method called aromatic-selective size exclusion chromatography (ASSEC) for quantifying aromatics in petroleum samples. ASSEC can provide a comprehensive analysis of aromatics content across the whole boiling range of petroleum samples and can be used for industrial applications such as optimizing conversions of petroleum to petrochemicals. Further optimization can reduce differences between ASSEC and other analytical techniques for determining aromatic content.
Article
Food Science & Technology
Ann-Kathrin Nedele, Raphaela Schiebelbein, Alessa Bar, Anne Kaup, Yanyan Zhang
Summary: Fermentation can significantly reduce the off-aroma concentration in soy products, as well as decrease the contribution of aldehydes, leading to a decreased perception of green and beany odors.
FOOD RESEARCH INTERNATIONAL
(2022)
Article
Biochemical Research Methods
Karina Ramos, Alicia Riddell, Helen Tsiagras, Amber M. Hupp
Summary: This study compares the applications of ultrafast gas chromatography (UFGC) and traditional gas chromatography (GC) in the evaluation of biodiesel-diesel blended fuels. The results show that UFGC is an effective and fast technique, comparable to traditional GC.
JOURNAL OF CHROMATOGRAPHY A
(2022)
Article
Chemistry, Analytical
D. A. Minakov, L. A. Kartsova, A. M. Zakharova, I. L. Grinshtein, O. Minakova
Summary: Chromatographic analysis of petroleum products is widely used in Russia to improve quality control, especially for the production of gasoline and intermediate liquid petroleum products with similar composition. This article discusses a qualitative gas chromatography-mass spectrometry analysis algorithm that helps reduce errors in component identification in test samples of petroleum products.
JOURNAL OF ANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Organic
Gabriele Theumer, Ingmar Bauer, Anne Jaeger, Lorenz Schwark, Hans-Joachim Knoelker
Summary: This study successfully synthesized seven C-2-alkylcarbazoles using a series of methods, providing analytical standards for identifying them in petroleum samples and source rocks.
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
(2022)
Article
Biochemical Research Methods
Pavel A. Dolgushev, Mikhail V. Shashkov
Summary: This paper presents the method of high-temperature two-dimensional gas chromatography (HT-GC x GC) with a flow modulator for analyzing complex high-boiling samples. The study developed a method that allows the analysis of complex samples with a temperature up to 360 degrees C using a combination of non-polar and mid-polar columns. The method achieved good resolution in separating aromatic and aliphatic hydrocarbons, as well as resolving aliphatic hydrocarbons into constituent classes like alkanes, alkenes, alkadienes, and cycloalkanes.
Article
Environmental Sciences
Bhaskar Bethi, Gidla Bhanu Radhika, Le Minh Thang, Shirish Hari Sonawane, Grzegorz Boczkaj
Summary: ZIF-8 supported BiFeO3 photocatalyst prepared by ultrasound cavitation technique showed excellent decolorization performance against Rhodamine-B dye under ultraviolet and visible light. The 40.7 wt% ZIF-8/BiFeO3 composite exhibited the highest photocatalytic activity, and acidic pH had a better effect on the decolorization.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Engineering, Chemical
Vikas S. Hakke, Vividha K. Landge, Shirish H. Sonawane, G. Uday Bhaskar Babu, Sivakumar Manickam, Grzegorz Boczkaj
Summary: Complex structured starch particles were reduced to nanoscale size through hydrolysis assisted by low concentration acid and ultrasound. The synthesized starch nanoparticles were characterized and found to possess surface activated entities, which effectively separated heavy Cu metal ions from synthetic ion solution. The process demonstrated reproducibility and offered efficient biosorption of heavy metal ions from wastewater.
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
(2023)
Review
Engineering, Environmental
Zahra Askarniya, Xun Sun, Zhaohui Wang, Grzegorz Boczkaj
Summary: Conversion of food wastes to valuable products is important for sustainable development. Cavitation is a promising method to enhance the hydrolysis of food waste during anaerobic digestion. Cavitation not only stimulates enzyme activities and improves the conversion of waste into biogas, biohydrogen, VFAs, and lactic acid, but also reduces the reaction time for biodiesel production by increasing mass transfer.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Kirill Fedorov, Manoj P. Rayaroth, Noor S. Shah, Grzegorz Boczkaj
Summary: Hydrodynamic cavitation (HC) was used to activate sodium percarbonate (SPC) and ozone (O3) for the degradation of recalcitrant 1,4-dioxane. Under optimal conditions, the degradation efficiency was > 99% in 120 minutes. The presence of SPC increased the degradation efficiency and HC/SPC/O-3 was more effective than HC/H2O2/O-3, indicating a synergistic effect.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Faiza Rehman, Nazish Parveen, Jibran Iqbal, Murtaza Sayed, Noor S. Shah, Sabah Ansar, Javed Ali Khan, Afzal Shah, Farrukh Jamil, Grzegorz Boczkaj
Summary: The removal of norfloxacin, a widely used pharmaceutical and emerging water pollutant, was studied using various oxidative processes. The use of peroxides, in conjunction with UV-C and UV-C/Fe2+, significantly enhanced the degradation of norfloxacin. Among the processes tested, UV-C/Fe2+/HSO5- showed the best performance.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2023)
Article
Environmental Sciences
V. S. Hakke, R. W. Gaikwad, A. R. Warade, S. H. Sonawane, G. Boczkaj, S. S. Sonawane, V. S. Sapkal
Summary: Effective use of the cation exchange procedure is significant in removing heavy metal ions from wastewater. An artificial neural network (ANN) model was built to simulate the cation exchange process. Indion 730 cation exchange resin was used to remove Cu(II) ions from acid mine drainage waste, and data from 252 cycles were recorded. The three-layered ANN module accurately predicted the ion exchange process based on 252 experimental observations in a column study.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Physical
Sadia Anjum, Shakira Aslam, Nazim Hussain, Muhammad Bilal, Grzegorz Boczkaj, Wojciech Smulek, Teofil Jesionowski, Hafiz M. N. Iqbal
Summary: Given the current issues with global warming and rising greenhouse gas emissions, bio-hydrogen is a viable alternative fuel option. This study examines the different technologies and processes involved in bio-hydrogen production, as well as the limitations and challenges. Organic waste, particularly biodegradable waste, is the preferred feedstock for bio-hydrogen generation. The review also explores alternative options for improving process efficiency and discusses the hindrances to fuel-cell commercialization.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Review
Environmental Sciences
Luyao Wang, Dan Luo, Oualid Hamdaoui, Yasser Vasseghian, Malwina Momotko, Grzegorz Boczkaj, George Z. Kyzas, Chongqing Wang
Summary: Ultrasound is a promising technique for wastewater treatment, as it is clean, efficient, and affordable. This review paper analyzes the research development and trends of ultrasound in wastewater treatment through bibliometric analysis. The study reveals the publication trends, subject categories, journals, authors, institutions, and countries associated with ultrasound in wastewater treatment. The analysis highlights the research hotspots, cooperation between countries and researchers, and potential future directions in the field.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Chemical
Farooque Ahmed Janjhi, Roberto Castro-Munoz, Grzegorz Boczkaj
Summary: The industrial sector is a major contributor to greenhouse gas emissions due to its excessive energy consumption. Deep eutectic solvents (DESs) have been extensively studied as a solution, but their potential harm to the environment is a concern.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Review
Food Science & Technology
Roberto Castro-Munoz, Grzegorz Boczkaj, Seid Mahdi Jafari
Summary: This review summarizes the progress in applying hydrodynamic cavitation (HC)-assisted technologies for the processing of food, beverages, and agricultural crops. It discusses various applications such as homogenization/mixing, pasteurization/sterilization, extraction of bioactive compounds, and improvement of physicochemical properties of food systems. The advantages and drawbacks of HC compared to other technologies are addressed, and future research trends and gaps are discussed.
TRENDS IN FOOD SCIENCE & TECHNOLOGY
(2023)
Review
Water Resources
Farooque Ahmed Janjhi, Ihsanullah Ihsanullah, Muhammad Bilal, Roberto Castro-Munoz, Grzegorz Boczkaj, Fausto Gallucci
Summary: As a novel family of 2D materials, MXenes have distinctive properties and attractive applicability in water and effluent treatment, including superior electrical conductivity, higher thermal stability, hydrophilicity, and high sorption-reduction capacity. They are perfect for removing hazardous contaminants due to their excellent sorption selectivity. MXene-based materials are considered one of the most important topics in membrane separation processes. This work provides a comprehensive review of recent developments in MXene-based water treatment materials, discussing their applications in removing antibiotics and heavy metals from water, as well as comparing them with other 2D membranes. Prospects and challenges for future research are also discussed.
WATER RESOURCES AND INDUSTRY
(2023)
Article
Chemistry, Applied
Nail Altunay, Baki Hazer, Muhammad Farooque Lanjwani, Mustafa Tuzen, Hameed Ul Haq, Grzegorz Boczkaj
Summary: A new PoleS block/graft copolymer was synthesized and used as an adsorbent for UA-DSPME of Sb(III) in bottled beverages. The method showed good recovery and high tolerance limit of matrix ions presence. Under optimized conditions, the method exhibited a wide linearity range, low limits of detection and quantitation, high extraction recovery, and satisfactory preconcentration factor and enhancement factor. The influences of variable on the recovery of Sb(III) were estimated using factorial design.
Article
Chemistry, Multidisciplinary
Sanaullah Khan, Javed Ali Khan, Noor S. Shah, Murtaza Sayed, Muhammad Ateeq, Sabah Ansar, Grzegorz Boczkaj, Umar Farooq
Summary: This study investigates the occurrence of lindane in surface water from the Peshawar valley, Pakistan, and finds that 17.3% of the tested samples are contaminated. The maximum concentration of lindane is found to be 2.60 μg L-1. The study also examines the degradation of lindane in water samples and shows that solar/TiO2 photocatalysis with the presence of H2O2 and PS is an effective method for its removal.
Article
Environmental Sciences
Shahid Nawaz, Andleeb Tabassum, Sara Muslim, Tayyaba Nasreen, Ausra Baradoke, Tak H. Kim, Grzegorz Boczkaj, Teofil Jesionowski, Muhammad Bilal
Summary: Persistent contaminants in wastewater effluent are a significant threat to aquatic life and a major environmental concern. The traditional methods of wastewater treatment are not cost-effective in removing toxic pollutants from the water environment. Therefore, the development of new technologies and more sustainable alternatives, such as biopolymers, is necessary for wastewater treatment.
Article
Environmental Sciences
Arif Nawaz, Muhammad Atif, Adnan Khan, Mohsin Siddique, Nisar Ali, Falak Naz, Muhammad Bilal, Tak H. Kim, Malwina Momotko, Hameed Ul Haq, Grzegorz Boczkaj
Summary: Unplanned anthropogenic activities and rapid industrial revolution pose a serious threat to both terrestrial and aquatic life. The discharge of wastewater from dye-using industries is particularly damaging to organisms and the environment. This study focuses on the synthesis of polycationic selenides (PCS) using hydrothermal methods for the photocatalytic degradation of dyes. The synthesized PCS were characterized using various techniques such as FTIR, SEM, EDX, UV/Vis, and XRD, confirming their structure and composition.