کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4764576 1423736 2018 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Population balance model and experimental validation for reactive dissolution of particle agglomerates
ترجمه فارسی عنوان
مدل تعادل جمعیت و اعتبار تجربی برای انحلال واکنش آگلومره ذرات
کلمات کلیدی
انحلال واکنش پذیر، توازن جمعیت، الکترونی بودن، شکستگی ذرات، روش مرتب سازی با لحاظ لحاظ شده با درجه بالا در کلاس،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی


- A population balance model for dissolution of particle agglomerates is proposed.
- The model combines shrinkage and breakage of particles.
- The high-order moment conserving method of classes is adopted.
- Beta distribution is introduced as the breakage daughter size distribution.
- The solid-liquid interface concentration is estimated under physical constrains.

We propose a population balance model coupled with a mass transfer model to simulate the simultaneous shrinkage and breakage of particles during the reactive dissolution of particle agglomerates in stirred tank. The high-order moment-conserving method of classes is adopted to solve the population balance model. In the mass transfer model, the driving force is estimated by considering the physical constraints including electroneutrality, water dissociation and dissolution equilibrium. The simulation results, including the concentration and the particle size distribution of the final products, were validated by experiments carried out in a laboratory scale stirred tank. The unknown physical parameters in the particle breakage model were fitted against the experimental data. The results underline the importance of particle breakage in the reactive dissolution modeling under the investigated operating conditions. Several daughter size distributions functions found in literature were tested. Among them, the beta distribution provides the most flexible way to describe breakage of the particle agglomerates.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computers & Chemical Engineering - Volume 108, 4 January 2018, Pages 240-249
نویسندگان
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