کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1743064 1521987 2015 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Aspen Plus rate-based modeling for reconciling laboratory scale and pilot scale CO2 absorption using aqueous ammonia
ترجمه فارسی عنوان
مدل آسپن پلاس مبتنی بر نرخ برای مقابله با مقیاس آزمایشگاهی و مقیاس آزمایشی جذب دی اکسید با استفاده از آمونیاک آبی
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات فرآیندهای سطح زمین
چکیده انگلیسی


• The rate-based model of CO2 absorption by aqueous ammonia was developed using laboratory scale experiments.
• The absorption model was validated by pilot data in the literature.
• The accuracy of absorption models is highly affected by mass transfer correlations and kinetic parameters.
• It needs to adjust the transfer and reaction conditions to accommodate the results of simulation and experiment.

In this study, simulations of CO2 absorption by aqueous ammonia using the rate-based model of Aspen Plus were investigated using laboratory scale experiments and pilot data in the literature. It was found that predictions are greatly influenced by the choice of transfer condition factor and reaction condition factor, mass transfer coefficients, and kinetic parameters in the rate-based model. Using the kinetic data provided by Pinsent et al. (1956), and mass transfer correlations provided by Billet and Schultes (1993), the optimal settings of transfer and reactor condition factors were found to be 0.75 and 0.25, respectively, by fitting experimental data obtained in the laboratory using 3 wt% aqueous ammonia. This set of parameters can be extended to the laboratory results of using 7 wt% aqueous ammonia, as well as pilot plant data provided by Yu et al. (2011). The results show that it is very important to reconcile the simulation model with data from various operating conditions and different scales before it is used for reliable process design and optimization.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Greenhouse Gas Control - Volume 34, March 2015, Pages 117–128
نویسندگان
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