Academic Journal

Hydrodynamic Full-Loop Simulation of an Industrial Fluid Catalytic Cracking Fluidized Bed System with Mechanical Valves

التفاصيل البيبلوغرافية
العنوان: Hydrodynamic Full-Loop Simulation of an Industrial Fluid Catalytic Cracking Fluidized Bed System with Mechanical Valves
المؤلفون: Yuting Wu, Shanglin Liu, Youhao Xu, Bona Lu, Hao Wu, Wei Wang
سنة النشر: 1753
المجموعة: Smithsonian Institution: Figshare
مصطلحات موضوعية: Biophysics, Medicine, Ecology, Infectious Diseases, Computational Biology, Space Science, Biological Sciences not elsewhere classified, Chemical Sciences not elsewhere classified, Physical Sciences not elsewhere classified, Information Systems not elsewhere classified, achieving optimal production, 6 hz ), wider frequency distribution, mass flow rate, loop pressure balance, applying mesoscale drag, loop simulation captures, riser simulation predicts, loop simulation, mesoscale structures, loop simulations, flow characteristics, dominating frequency, two kinds, study realizes, solid concentration, particle conveying, minimization multiscale, many chemical, dynamic behavior
الوصف: Circulating fluidized bed (CFB) systems are the core unit of many chemical and energy processes. Realizing a full-loop CFB system simulation can help one understand system operation laws for achieving optimal production. This study realizes a full-loop simulation of a 1.20 Mt/a industrial reaction–regeneration CFB system by applying mesoscale drag and constructing a mechanical valve pressure regulation model. The effects of the energy-minimization multiscale (EMMS)-based drag models are investigated by analyzing the solid concentration, full-loop pressure balance, and mass flow rate. Then, the flow characteristics of the single-riser and full-loop simulations are compared. It is found that the single-riser simulation predicts a wider frequency distribution of solid concentration (average value ≈1.6 Hz), while the full-loop simulation captures a dominating frequency at a much lower value (≈0.1 Hz), indicating that the above two kinds of simulations reveal significantly different mechanisms in particle conveying and dynamic behavior of mesoscale structures.
نوع الوثيقة: article in journal/newspaper
اللغة: unknown
Relation: https://figshare.com/articles/journal_contribution/Hydrodynamic_Full-Loop_Simulation_of_an_Industrial_Fluid_Catalytic_Cracking_Fluidized_Bed_System_with_Mechanical_Valves/25158560
DOI: 10.1021/acs.iecr.3c04254.s001
الاتاحة: https://doi.org/10.1021/acs.iecr.3c04254.s001
Rights: CC BY-NC 4.0
رقم الانضمام: edsbas.CCD4AF28
قاعدة البيانات: BASE
الوصف
DOI:10.1021/acs.iecr.3c04254.s001