The Kinetic Study of the Carbonation Behavior of a Calcium-Based Sorbent in the Calcium-Looping CO2 Capture Process

سال انتشار: 1397
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 468

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شناسه ملی سند علمی:

OGPC02_074

تاریخ نمایه سازی: 6 شهریور 1399

چکیده مقاله:

This study investigated the carbonation behavior of a calcium-based sorbent in the calcium-looping CO2 capture process as a non-catalytic gas-solid reaction using a grain size distributed (GSD) model. In GSD model, the calcium-based particle consisted of numerous spherical grains with variable size distribution. The overall conversion over the reaction time was calculated by a mathematical modeling. The overall sorbent conversion rate obtained by using the GSD model showed better agreement with the experimental data than the results obtained using the grain model. In the GSD model, the physical microstructure of the sorbent particle changes due to the molar volume expansion of grains during carbonation reaction. The model also predicted accurately the change of particle structural properties such as porosity, molar density and specific surface area during the carbonation reaction.

کلیدواژه ها:

CO2 Capture ، Mathematical modeling ، Non-catalytic heterogeneous reaction kinetics ، Calcium-looping ، Grain size distribution

نویسندگان

Mohammad Hashem Sedghkerdar

Gas, Oil and Petrochemical Engineering Department, Persian Gulf University, Bushehr, Iran

Davood Karami

Department of Chemical and Petroleum Engineering, Schulich School of Engineering, University of Calgary, Calgary, AB, Canada