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بررسی تاثیر ثابت سرعت واکنش غیرفعال شدن کاتالیست نقره پایه پلیمری در تبدیل آلایندهی 4-نیتروفنول به 4-آمینوفنول | ||
| مدل سازی در مهندسی | ||
| دوره 22، شماره 77، شهریور 1403، صفحه 117-127 اصل مقاله (1.12 M) | ||
| نوع مقاله: مقاله شیمی | ||
| شناسه دیجیتال (DOI): 10.22075/jme.2024.31327.2500 | ||
| نویسندگان | ||
| نوید احدی جمایران1؛ علی نعمت اله زاده* 2؛ بهروز میرزایی2 | ||
| 1دانشجوی دکتری، گروه مهندسی شیمی، دانشکده فنی و مهندسی، دانشگاه محقق اردبیلی، اردبیل | ||
| 2استاد، گروه مهندسی شیمی، دانشکده فنی و مهندسی، دانشگاه محقق اردبیلی، اردبیل | ||
| تاریخ دریافت: 31 تیر 1402، تاریخ بازنگری: 23 آذر 1402، تاریخ پذیرش: 19 دی 1402 | ||
| چکیده | ||
| تبدیل کاتالیستی آلایندهی آلی 4-نیتروفنول به 4-آمینوفنول به‌عنوان یک واکنش مدل در تماس با کاتالیست نقره بر پایه پلیمر در یک بستر پرشده شبیهسازی شد. در این کار، افت فعالیت کاتالیست بر اثر باقیمانده‌های محصول بر روی کاتالیست و همچنین تاثیر ثابت سرعت واکنش غیرفعال شدن کاتالیست و تغییرات میزان تبدیل بررسی شد. سه مقدار مختلف برای ثابت سرعت واکنش غیرفعال شدن به‌صورت ، و انتخاب شدند. نتایج نشان داد با افزایش مقدار ثابت سرعت غیرفعال شدن کاتالیست؛ درصد تبدیل در پایان زمان مورد مطالعه به ترتیب 2، 10 و 70 درصد و فعالیت کاتالیست به ترتیب 25، 75 و 95 درصد کاهش می‌یابد. همچنین فعالیت این کاتالیست در طول بستر کاتالیستی در طی زمان انجام واکنش، به‌علت تجمع محصول در قسمتهای پایین بستر، افت بیشتری نسبت به بالای بستر داشت. لذا انتخاب کاتالیست مناسب با حداقل ثابت سرعت واکنش غیرفعال شدن، برای رسیدن به بیشترین درصد تبدیل و بالاترین مقدار فعالیت کاتالیست، مهم است. | ||
| کلیدواژه‌ها | ||
| بستر پُر شده؛ کاتالیست نقره پایه پلیمری؛ 4-نیتروفنول؛ 4-آمینوفنول؛ فعالیت کاتالیست | ||
| عنوان مقاله [English] | ||
| Investigating the Effect of Deactivation Rate Constant of Polymer-Based Silver Catalyst on the Reduction of Pollutant 4-Nitrophenol to 4-Aminophenol | ||
| نویسندگان [English] | ||
| Navid Ahadi-Jomairan1؛ Ali Nematollahzadeh2؛ Behruz Mirzayi2 | ||
| 1Ph.D. Candidate, Department of chemical engineering, Faculty of Engineering, University of Mohaghegh Ardabili | ||
| 2Professor, Chemical Engineering Department, University of Mohaghegh Ardabili, P.O. Box 179, Ardabil, Iran. | ||
| چکیده [English] | ||
| The catalytic reduction of the organic pollutant, 4-nitrophenol to 4-aminophenol was simulated as a model reaction in contact with the polymer-based silver catalyst in a packed bed. The decrease in the catalyst activity as a result of the product residues on the catalyst and also the effect of the deactivation rate constant and conversion rate changes was investigated. Three different values for the deactivation rate constant were chosen as 4.8´10-5, 2.4´10-4, and 1.2´10-3 m3 mol-1 s-1. The results showed that by increasing the catalyst deactivation rate constant, at the end of the studied time, the conversion decreases by 2, 10, and 70%, respectively, and the catalyst activity decreases by 25, 75, and 95%, respectively. Also, the activity of the catalyst throughout the catalytic bed exhibited a greater drop compared to the upper part of the bed due to the accumulation of the product in the lower part of the bed. Therefore, it is important to choose an appropriate catalyst with the minimum deactivation rate constant to achieve the highest conversion percentage and the highest catalyst activity value. | ||
| کلیدواژه‌ها [English] | ||
| Packed bed, Polymer-based silver catalyst, 4-Nitrophenol, 4-Aminophenol, Catalyst activity | ||
| مراجع | ||
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[1] L. Ai, and J. Jiang. "Catalytic Reduction of 4-Nitrophenol by Silver Nanoparticles Stabilized on Environmentally Benign Macroscopic Biopolymer Hydrogel." Bioresource technology 132 (2013): 374-77. [2] U. Alam, T. A. Shah, A. Khan, and M. Muneer. "One-Pot Ultrasonic Assisted Sol-Gel Synthesis of Spindle-Like Nd and V Codoped Zno for Efficient Photocatalytic Degradation of Organic Pollutants." Separation and Purification Technology 212 (2019): 427-37. [3] N. Alhokbany, T. Ahama, M. Naushad, and S.M. Alshehri. "Agnps Embedded N-Doped Highly Porous Carbon Derived from Chitosan Based Hydrogel as Catalysts for the Reduction of 4-Nitrophenol." Composites Part B: Engineering 173 (2019): 106950. [4] G.F. Froment. "Chemical Reactor Analysis and Design." (1990). [5] N. A. Ghorbani, and H. Namazi. "Polydopamine-Graphene/Ag–Pd Nanocomposite as Sustainable Catalyst for Reduction of Nitrophenol Compounds and Dyes in Environment." Materials Chemistry and Physics 234 (2019): 38-47. [6] H. Gu, Y. Liu, L. Wang, B. Zhang, D. Yin, and Q. Zhang. "Monolithic Macroporous Hydrogels Prepared from Oil-in-Water High Internal Phase Emulsions for High-Efficiency Purification of Enterovirus 71." Chemical Engineering Journal 401 (2020): 126051. [7] J. A. Herrera-Melián, A.J. Martín-Rodríguez, A. Ortega-Méndez, J. Araña, J.M. Doña-Rodríguez, and J. Pérez-Peña. "Degradation and Detoxification of 4-Nitrophenol by Advanced Oxidation Technologies and Bench-Scale Constructed Wetlands." Journal of environmental management 105 (2012): 53-60. [8] I. Ibrahim, I.O Ali, T.M. Salama, A.A. Bahgat, and M. M. Mohamed. "Synthesis of Magnetically Recyclable Spinel Ferrite (Mfe2o4, M= Zn, Co, Mn) Nanocrystals Engineered by Sol Gel-Hydrothermal Technology: High Catalytic Performances for Nitroarenes Reduction." Applied Catalysis B: Environmental 181 (2016): 389-402. [9] F.P. Incropera, D.P. DeWitt, T.L. Bergman, and A.S. Lavine. Fundamentals of Heat and Mass Transfer. Vol. 6: Wiley New York, 1996. [10] S.R. Khan, S. Jamil, S. Li, and A. Sultan. "Acrylic Acid and Methacrylic Acid Based Microgel Catalysts for Reduction of 4-Nitrophenol." Russian Journal of Physical Chemistry A 92 (2018): 2656-64. [11] Z. Lei, Q. Zhang, N. Liu, C. Dai, and B. Chen. "Experimental and Modeling Study on the Hydrodynamics in Multiphase Monolith Modules with Different Distributors." Chemical Engineering and Processing-Process Intensification 153 (2020): 107920. [12] O. Levenspiel. "Chemical Reaction Engineering." Industrial & Engineering Chemistry Research 38, no. 11 (1999/11/01 1999): 4140-43. [13] DR. Lide. "Density: 1, 2-Dicholorethane." CRC handbook of chemistry and physics (1998). [14] S. Lu, J. Yu, Y. Cheng, Q. Wang, A. Barras, W. Xu, S. Szunerits, D. Cornu, and R. Boukherroub. "Preparation of Silver Nanoparticles/Polydopamine Functionalized Polyacrylonitrile Fiber Paper and Its Catalytic Activity for the Reduction 4-Nitrophenol." Applied Surface Science 411 (2017): 163-69. [15] J.X Ma, H. Yang, S. Li, R. Ren, J. Li, X. Zhang, and J. Ma. "Well-Dispersed Graphene-Polydopamine-Pd Hybrid with Enhanced Catalytic Performance." RSC advances 5, no. 118 (2015): 97520-27. [16] J.H. Masliyah, and S. Bhattacharjee. Electrokinetic and Colloid Transport Phenomena. John Wiley & Sons, 2006. [17] R.J. Millington, and J.P. Quirk. "Permeability of Porous Solids." Transactions of the Faraday Society 57 (1961): 1200-07. [18] B. Mishra, , A. Kumar, and B.P. Tripathi. "Polydopamine Mediated in Situ Synthesis of Highly Dispersed Gold Nanoparticles for Continuous Flow Catalysis and Environmental Remediation." Journal of Environmental Chemical Engineering 8, no. 5 (2020): 104397. [19] Y. Osada. Gels Handbook, Four-Volume Set. Vol. 1: Elsevier, 2000. [20] J. Saien, and S. Khezrianjoo. "Degradation of the Fungicide Carbendazim in Aqueous Solutions with Uv/Tio2 Process: Optimization, Kinetics and Toxicity Studies." Journal of hazardous materials 157, no. 2-3 (2008): 269-76. [21] P. Szczepański. "Experimental and Model Studies of P–Nitrophenol and Phenol Separation in the Bulk Liquid Membrane with the Application of Bond–Graph Method." Chemical Engineering Science 185 (2018): 141-48. [22] H.H. Tabak, S.A. Quave, C.I. Mashni, and E.F. Barth. "Biodegradability Studies with Organic Priority Pollutant Compounds." Journal (Water Pollution Control Federation) (1981): 1503-18. [23] T. Tanaka. "Collapse of Gels and the Critical Endpoint." Physical review letters 40, no. 12 (1978): 820. [24] V. Tomašić, and F. Jović. "State-of-the-Art in the Monolithic Catalysts/Reactors." Applied Catalysis A: General 311 (2006): 112-21. [25] A. Tran, A. Aguirre, H. Durand, M. Crose, and P.D. Christofides. "Cfd Modeling of a Industrial-Scale Steam Methane Reforming Furnace." Chemical Engineering Science 171 (2017): 576-98. [26] CR.Wilke. "Estimation of Liquid Diffusion Coefficients." Chemical Engineering Progress 45, no. 3 (1949): 218-24. [27] C.R. Wilke, and P. Chang. "Correlation of Diffusion Coefficients in Dilute Solutions." AIChE journal 1, no. 2 (1955): 264-70. [28] G. Wu , X. Liang, L. Zhang, Z. Tang, M. Al-Mamun, H. Zhao, and X. Su. "Fabrication of Highly Stable Metal Oxide Hollow Nanospheres and Their Catalytic Activity toward 4-Nitrophenol Reduction." ACS Applied Materials & Interfaces 9, no. 21 (2017): 18207-14. [29] S. Wunder, F. Polzer, Y. Lu, Y. Mei, and M. Ballauff. "Kinetic Analysis of Catalytic Reduction of 4-Nitrophenol by Metallic Nanoparticles Immobilized in Spherical Polyelectrolyte Brushes." The Journal of Physical Chemistry C 114, no. 19 (2010): 8814-20. [30] B. Zhang, Y. Yuan, K. Philippot, and N. Yan. "Ag–Pd and Cuo–Pd Nanoparticles in a Hydroxyl-Group Functionalized Ionic Liquid: Synthesis, Characterization and Catalytic Performance." Catalysis Science & Technology 5, no. 3 (2015): 1683-92. [31] K. Zhang, J.M. Suh, J.W. Choi, H. Won Jang, M. Shokouhimehr, and R.S. Varma. "Recent Advances in the Nanocatalyst-Assisted Nabh4 Reduction of Nitroaromatics in Water." ACS omega 4, no. 1 (2019): 483-95. [32] P. Zhang, C. Shao, Z. Zhang, M. Zhang, J. Mu, Z. Guo, and Y. Liu. "In Situ Assembly of Well-Dispersed Ag Nanoparticles (Agnps) on Electrospun Carbon Nanofibers (Cnfs) for Catalytic Reduction of 4-Nitrophenol." Nanoscale 3, no. 8 (2011): 3357-63. [33] X.Yan Zhu, Z.S. Lv, J.J. Feng, P.X. Yuan, L. Zhang, J.R. Chen, and A.J. Wang. "Controlled Fabrication of Well-Dispersed Agpd Nanoclusters Supported on Reduced Graphene Oxide with Highly Enhanced Catalytic Properties Towards 4-Nitrophenol Reduction." Journal of colloid and interface science 516 (2018): 355-63. | ||
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