سنتز ریزدانه‌های مزوفاز کربنی از قیرنرم و قطران زغال‌سنگ به روش کربنیزاسیون فاز مایع

نوع مقاله : مقاله پژوهشی

نویسندگان

دانشکده مهندسی مواد، دانشگاه صنعتی مالک اشتر، اصفهان، ایران

چکیده

در پژوهش حاضر، از قطران زغال‌سنگ و قیر نرم به‌عنوان مواد اولیه و از روش کربنیزاسیون فاز مایع به‌عنوان روشی با هزینه تولید پایین، برای تولید ریزدانه‌های کربن مزوفاز استفاده شد. نخست، اثر دما، زمان و فشارهای گوناگون بر تولید قیر مزوفاز بررسی شد. همچنین، اثر حلال‌های گوناگون بر کارایی سنتز ریزدانه‌های مزوفاز کربنی بررسی شد. ویژگی‌های ساختاری و شیمیایی موجود در ریزدانه‌های کربن مزوفاز با میکروسکوپ الکترونی روبشی نشر میدانی، طیف‌سنجی تفکیک انرژی پرتو ایکس، پراش پرتو ایکس، طیف‌سنجی رامان و آزمون طیف‌سنجی تبدیل فوریه فروسرخ ارزیابی شد. نتایج نشان داد که فشار bar 7 و استخراج با حلال پیریدین تأثیر زیادی بر مورفولوژی، حذف ناخالصی‌های موجود در مواد اولیه و بازده تولید دارد. همچنین نتایج آزمون پراش پرتو ایکس و میکروسکوپی الکترونی روبشی نشان داد که ریزدانه‌های کربن مزوفاز همیشه مورفولوژی کروی ندارند.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Synthesis of Mesophase Carbon Microbeads from Soft Bitumen and Coal Tar by Liquid Phase Carbonization Method

نویسندگان [English]

  • M. Sobhani
  • M. R. Loghman Estraki
  • H. Mansouri
  • M. Naderi
  • E. Mohammad Sharifi
  • A.R. Nasr Esfahani
Department of Materials Engineering, Malek Ashtar University of Technology, Isfahan, Iran
چکیده [English]

In this research, coal tar and soft bitumen were used as raw materials and the low-cost liquid phase carbonization (LCP) method was employed to synthesize mesophase carbon microbeads. First, the effect of temperature, time, and various pressures on the synthesis of mesophase bitumen was investigated. Also, the effect of various solvents on the synthesis efficiency of mesophase carbon microbeads was evaluated. The structural and chemical characteristics of the mesophase carbon microbeads were evaluated using field emission scanning electron Microscopy (FESEM), X-ray energy dispersive spectroscopy (EDS), X-ray diffraction (XRD), Raman spectroscopy, and Fourier transform infrared spectroscopy (FTIR). The results showed that the pressure of 7 bar and extraction with solvent of pyridine had a great effect on the morphology, removal of impurities in raw materials, and production efficiency. Also, the results of XRD and SEM revealed that mesophase carbon microbeads were not always spherical in shape.
 

کلیدواژه‌ها [English]

  • Mesophase carbon microbeads
  • Mesophase bitumen
  • Liquid crystal
  • Liquid phase carbonization

مراجع

  1. Deshmukh AA, Mhlanga SD, Coville NJ. Carbon Spheres. Materials Science and Engineering: R: Reports. 2010;70(1-2):1-28.
  2. Shalaev E, Wu K, Shamblin S, Krzyzaniak JF, Descamps M. Crystalline Mesophases: Structure, Mobility, And Pharmaceutical Properties. Advanced drug delivery reviews. 2016;100:194-211.
  3. Brooks JD, Taylor G. The Formation of Graphitizing Carbons from The Liquid Phase. Carbon. 1965;3(2):185-93.
  4. Hu J, Zang H. Preparation and Performance of Anisotropic Mesophase of Coal Pitch in Chemical Industry Based on Computer Monitoring Technology. Chemical Engineering Transactions. 2018;71:1219-24.
  5. Kodama M, Fujiura T, Ikawa E, Esumi K, Meguro K, Honda H. Characterization of Meso-Carbon Microbeads Prepared by Emulsion Method. Carbon. 1991;29(1):43-9.
  6. Alcántara R, Madrigal FF, Lavela P, Tirado JL, Mateos JJ, De Salazar CG, Stoyanova R, Zhecheva E. Characterisation of Mesocarbon Microbeads (MCMB) As Active Electrode Material in Lithium and Sodium Cells. Carbon. 2000;38(7):1031-41.
  7. Wang YG, Chang YC, Ishida S, Korai Y, Mochida I. Stabilization and Carbonization Properties of Mesocarbon Microbeads (MCMB) Prepared from A Synthetic Naphthalene Isotropic Pitch. Carbon. 1999;37(6):969-76.
  8. Xia H, Hu J, Li J, Wang K. Electrochemical Performance of Graphene-Coated Activated Mesocarbon Microbeads as A Supercapacitor Electrode. RSC advances. 2019;9(12):7004-14.
  9. Safi S, Rad RY. In Situ Synthesis of Nano Size Silicon Carbide and Fabrication of Csic Composites During the Siliconization Process of Mesocarbon Microbeads Preforms. Ceramics International. 2012;38(6):5081-7.
  10. Gong X, Lou B, Yu R, Zhang Z, Guo S, Li G, Wu B, Liu D. Carbonization of Mesocarbon Microbeads Prepared from Mesophase Pitch with Different Anisotropic Contents and Their Application in Lithium-Ion Batteries. Fuel Processing Technology. 2021;217:106832.
  11. Zhang Y, Guo X, Yao Y, Wu F, Zhang C, Lu J. Synthesis of Mg-Decorated Carbon Nanocomposites from Mesocarbon Microbeads (MCMB) Graphite: Application for Wastewater Treatment. Acs Omega. 2016;1(3):417-23.
  12. Markevich E, Pollak E, Salitra G, Aurbach D. On The Performance of Graphitized Meso Carbon Microbeads (MCMB)–Meso Carbon Fibers (MCF) And Synthetic Graphite Electrodes at Elevated Temperatures. Journal of Power Sources. 2007;174(2):1263-9.
  13. Hosseini MS, Chartrand P. Thermodynamics and Phase Relationship of Carbonaceous Mesophase Appearing During Coal Tar Pitch Carbonization. Fuel. 2020;275:117899.
  14. Zhang X, Meng Y, Fan B, Ma Z, Song H. Preparation of Mesophase Pitch from Refined Coal Tar Pitch Using Naphthalene-Based Mesophase Pitch as Nucleating Agent. Fuel. 2019;243:390-7.
  15. Ji SJ, Cheng XL, Zhao JH, Bi QL, Wang LC, Wang JS, Wang LH, Song CY, Zhang M. Preparation of Mesocarbon Microbeads (MCMB) From Suspensions of A Synthetic Naphthalene Isotropic Pitch. Key Engineering Materials. 2017;753:231-6.
  16. Kodama M, Fujiura T, Ikawa E, Esumi K, Meguro K, Honda H. Characterization of Meso-Carbon Microbeads Prepared by Emulsion Method. Carbon. 1991;29(1):43-9.
  17. Koral Y, Wang YG, Yoon SH, Ishida S, Mochida I, Nakagawa Y, Matsumura Y. Preparation of Meso-Carbon Microbeads with Uniform Diameter From AR-Isotropic Pitch in The Presence of Carbon Black. Carbon. 1996;34(9):1156-9.
  18. Song H, Chen X, Chen X, Zhang S, Li H. Influence of Ferrocene Addition on The Morphology and Structure of Carbon from Petroleum Residue. Carbon. 2003;41(15):3037-46.
  19. Li L, He J, Zhang Y, Lv J, Wang Y. Preparation of Mesocarbon Microbeads from Coal Tar Pitch with Blending of Biomass Tar Pitch. Journal of Analytical and Applied Pyrolysis. 2021;155:105039.
  20. Qiu J, Li Y, Wang Y, Liang C, Wang T, Wang D. A Novel Form of Carbon Micro-Balls from Coal. Carbon. 2003;41(4):767-72.
  21. Deshmukh AA, Mhlanga SD, Coville NJ. Carbon Spheres. Materials Science and Engineering: R: Reports. 2010;70(1-2):1-28.
  22. Yamada Y, Imamura T, Kakiyama H, Honda H, Oi S, Fukuda K. Characteristics of Meso-Carbon Microbeads Separated from Pitch. Carbon. 1974;12(3):307-19.
  23. Zhu Y, Hu C, Zhao C, Xu Y, Gao L, Zhao X. Thermal Conversion Behavior of Medium–Low–Temperature Coal Tar Pitch During Liquid–Phase Carbonization Process. Chemistryselect. 2019;4(40): 11886-92.
  24. Lü Y, Ling L, Wu D, Liu L, Zhang B, Mochida I. Preparation of Mesocarbon Microbeads from Coal Tar. Journal of materials science. 1999;34:4043-50.
مواد پیشرفته در مهندسی
دوره 41، شماره 4
اسفند 1401
صفحه 75-90

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