مهندسی شیمی ایران

مهندسی شیمی ایران

مدل‌سازی تأثیر گاز دی‌اکسید سولفور برروی بازده راکتور کربناتور در جریان‌های جبرانی و گردشی مختلف

نوع مقاله : مقاله پژوهشی

نویسندگان
1 دانشجوی کارشناسی ارشد مهندسی شیمی، دانشگاه تبریز
2 دانشیار مهندسی شیمی، دانشگاه تبریز
چکیده
در این تحقیق، بااستفاده‌از یک مدل جامع و براساس داده‌های تجربی حاصل‌از راکتور بسترسیال در شرایط عملیاتی سخت و در دو حالت حضور و عدم حضور گاز دی‌اکسید سولفور، تأثیر جریان جبرانی و جریان گردشی، برروی بازده راکتور کربناتور بررسی شد. اعمال مدل جامع برروی داده‌های تجربی نشان داد که در دو شرایط واکنشی، بیشترین خطای مطلق میان مدل و داده‌های تجربی، به‌ترتیب 2/5% و 1/8% است. نتایج نشان داد که در هر دو شرایط واکنشی، تأثیر جریان جبرانی برروی بازده راکتور کربناتور درمقایسه‌با جریان گردشی بیشتر بوده و درحضور گاز دی‌اکسید سولفور، بازده راکتور کربناتور با افزایش نسبت جریان جبرانی، افزایش بیشتری می‌یابد. هم‌چنین، حضور گاز دی‌اکسید گوگرد و انجام واکنش‌‌های سولفاسیون باعث می‌شود تا برای دست‌یابی به مقدار بازده برابر با شرایط عدم حضور گاز دی‌اکسید سولفور، میزان مصرف در جریان جبرانی 36/5 برابر افزایش یابد.

کلیدواژه‌ها

موضوعات


عنوان مقاله English

Modeling Effect of Sulfur Dioxide on the Efficiency of Carbonator Reactor at Different Make-Up and Recirculation Flows

نویسندگان English

M. R. Tizfahm 1
M. Tahmasebpoor 2
H. R. Ramezan Behtash 1
1 M. Sc. Student of Chemical Engineering, University of Tabriz
2 Associate Professor of Chemical Engineering, University of Tabriz
چکیده English

In this study, effect of make-up and recirculating flow on the efficiency of carbonateor reactor was investigated using a comprehensive model based on experimental data obtained from a fluidized bed reactor under harsh condition and in the presence and absence of sulfur dioxide. Results obtained from applying comprehensive model to the experimental data showed that in the both reaction conditions, maximum absolute error between experimental data and those predicted by model was 2.5% and 1.8%, respectively. Also under both reaction conditions, effect of make-up flow on the efficiency of carbonator reactor was higher than that of recirculating flow and in the presence of sulfur dioxide, efficiency of carbonator reactor more increased with increasing the make-up flow. Furthermore, the presence of sulfur dioxide and the sulfation reactions occurrence led to a requirement of make-up flow 36.5 times higher in order to achieve the same efficiency as in the absence of sulfur dioxide.

کلیدواژه‌ها English

Fluidized Bed Reactor
Make-Up Flow
Recirculating Flow
Sulfur Dioxide
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