Sulfur in the fuel is a major environmental problem that cause air pollution and sour rain when burning. To solve this problem, scientists have been seeking better ways to remove sulfur from fossil fuels. A promising method involves materials that use specially designed mesh catalysts. These catalysts are like micro sponges with many pores, which help them capture and convert sulfur compounds into harmless substances. This new research focuses on improving the efficiency of these catalysts, making the process more clean and effective than ever.
Researchers have developed an innovative melody catalyst, which can significantly improve the hydrogenation (HDS) of the pylopenia. This is a sulfur -containing compound found in crude oil. Professor of Antonio Araujo and Professor Marcio Araujo, Geitiano Silva, and the University of the University of Federal University, Dr. Jilliano Silva. The team led by Professor Valter Fernandes Jr.; Dr. ANA Coutinho of Fluminense Federal University; Professor Joana Barros of Federal University of Camine; Dr. Marcelo Souza at the University of Sergipe; Regina Delgado published their discovery in the “Catalyst” magazine.
In modern refineries, hydrogen sulfur is a key process to reduce sulfur content in fossil fuels to meet strict environmental regulations. The focus of the research is to develop catalysts containing cobalt and molybdenum containing mega materials (especially SBA-15 and ALSBA-15). These materials are famous for their high -ratio surface area and large aperture, which can enhance the dispersion of active metals and improve the acquisition of sulfur compounds during the HDS process.
Professor Araujo and his team used water heat methods to synthesize catalysts, and then co -coordinated with cobalt nitrate and seven -star ammonium -like glandular glandular glandular. The COMO/SBA-15 and COMO/ALSBA-15 catalysts are characterized by various technologies, including X-ray diffraction (XRD), thermal analysis (TG/DTG) and scanning electronic microscope (SEM). XRD analysis confirmed the existence of MOO3Co3O4And comoo4 Activated oxides in HDS reaction.
In the laboratory test, these catalysts show the impressive activity of n-benzylene flowing pneumophyte hydrogenation sulfide, which mainly produces CIS-and Trans-2 two-two benzene, 1-di butanane, N-butresses Alkyl and a small amount of isopylene. It is worth noting that the existence of adverse by-products such as 1,3-butadiene and tetrahydrochemopiophe is not detected. Researchers have proposed a reaction mechanism that involves desulfurization, hydrogenation, dehydrogenation and heterogeneous steps to explain the distribution of product distribution observed.
The major discovery of the study highlights the advantages of using the media as the support of HDS catalysts. Professor Araujo said: “The high-ratio surface area and hole structure of the SBA-15 and ALSBA-15 are the basis for improving the efficiency of metal dispersal and improving the efficiency of hydrogenated sulfurization.” These catalysts show the potential of ultra-low sulfur fuel, these catalysts show that This is essential for reducing SOX emissions and meeting environmental standards.
Researchers emphasized that further study of the modification of the media support and the optimization of metal loads to enhance the performance of HDS catalysts. They also suggested to explore the use of other media materials and mixed metal oxides to further improve the efficiency and selectivity of desulfurization.
This research provides a promising step for more efficient and more environmentally friendly hydrogenation, which helps clean fuel production and reduce air pollution. Professor Araujo and his colleagues are optimistic about the future application of their discovery, and aims to completely change the fuel industry through greener and more effective vulcanization technology.
Journal reference
Coutinho, ACSLS; Barros, JMF; Araujo, Doctor of Medicine; Souza, MJB; Delgado, RCOB; Fernandes jr. -15 Dinghole catalyst is used as a hydrogenation of n-sulfurbatin, and the hydrosis. Catalyst 2024, 14, 198. Doi: https: //doi.org/10.3390/cataL14030198
About the author
The Institute of Chemistry, the Northern Federal University of Georio Grand University, Brazil
Antonio s. Araujo He obtained his doctorate degree in St. Paul’s University (Brazil). He has visited scientists and postdoctoral researchers at Ken Proven University at KSU’s post -doctoral researchers. He participated in the synthesis, representation and acidity of amulettite and silicon -based medium -based media. His interesting research is to use the heavily solution to the hydraulic degradation, dynamics and thermal analysis of the use of blood and hybrid mini -salt materials as a catalyst, the catalytic degradation, dynamics and thermal analysis of oil residues and plastic waste, focusing on obtaining fuel and environment. Professor Araujo is a complete professor of the Institute of Chemistry and Researchers of the State Science and Technology Development Council (Brazil) of Brazil, and cited in the “synthesis of who is the synthesis of the thermal analysis and the calorie table who is who is who is and who is and who is the Zeolitic Materials” “. of. “Edited by Iza, he is also a temporary consultant of the ACS -Petroleum Research Fund. Professor Araujo published more than 200 papers reviewed by colleagues, including more than 4,000 citations, 6 patents, H -Index 34, and held in Congress, and held in Congress More than 20 invited lectures.
The Institute of Chemistry, the Northern Federal University of Georio Grand University, Brazil
Value j. Fernandes It is a doctorate degree in analytical chemistry at the University of Sheng Paulo. After the Environmental Chemistry of Inpe, the complete professor of the UFRN Institute of Chemistry, the coordinator of the UFRN fuel and lubricant laboratory-executor-the executor of the fuel research and quality plan since 1993, From May 5th, 2011 to August 8, 2016, the State Petroleum Bureau of RN State studied in UFRN, FINPQ’s scientific consultant, FAPESP, NSF-NSF-Nactiandal Scicuan Foundand and CNPQ. The coordinator of the Northern/Northeast Fuel Laboratory Network, the permanent professor of UFRN Chemical and Materials Science and Engineering Graduate Course, completed 37 master’s and doctoral degrees. The author and 4 industrial application patents of the 155 articles of the index science journal (H Index = 25) have patented letter awarded by INPI. His main research catalog is: the application of nano -structure materials in the third -level recycling of polymers. Analysis of fuel, biofuel and oil. Evaluate and characterize additives for fuel and biofuels.
Photos from Araujo Laboratory
The laboratory (LCL) of the lubricant and the catalytic and petrochemical laboratory are related to the chemical graduate program of the Institute of Chemistry at the University of the University of Rio Graogland University (IQ/UFRN). These laboratories work directly in the field of petroleum and petrochemical substances. It aims to be aimed at the physical and chemical characteristics of petroleum and derivatives. It aims to improve the quality of automobile fuel. In addition, it has also developed analysis methods for processing oil and industrial waste.
One of the most important plans for LCL coordinating fuel fields is the plan to monitor combustible quality (PMQC), which is supervised by national oil, natural gas and biofuel (ANP). Essence In this plan, LCL collected car fuel samples in RN and PB, and certified its quality to provide important services for society.
LCP has studied the development of micro and mesh catalysts. It is applied in the process of oil and petrochemical industries to improve the quality of car fuel. Research themes include removing sulfur pollutants from fuel, using catalytic methods to process the joint treatment of petroleum industry waste (atmospheric residues, oily sludge and real air oil) and polymers. Fuel, use heat and catalytic thermal solution methods. Studies are carried out by the anxiety instrument of thermal analysis equipment and auxiliary chromatography and mass spectrometer coupling.
