TY - JOUR ID - 63712 TI - Carbon Dioxide Capture by Modified UVM-7 Adsorbent JO - Journal of Chemical and Petroleum Engineering JA - JCHPE LA - en SN - 2423-673X AU - Babaie, Fatemeh AU - Mousavi, Seyed Hamed AU - Alizadeh, Ali mohammad AU - Hazrati, Nastaran AD - Faculty of Caspian, College of Engineering, University of Tehran, Guilan, Iran AD - Gas Research Division, Research Institute of Petroleum Industry (RIPI), Tehran, Iran AD - Faculty of chemistry, Amirkabir University of Technology, Tehran, Iran Y1 - 2014 PY - 2014 VL - 48 IS - 2 SP - 91 EP - 102 KW - CO2 KW - N2 Adsorption/ Desorption Isotherm KW - Breakthrough KW - Carbon capture KW - Flue gas DO - 10.22059/jchpe.2014.63712 N2 - In this study, bimodal meso-porous silica (UVM-7) synthesized and fabricated amino silane modified supports were characterized by powder X-ray diffraction (XRD), N2 adsorption/desorption, transmission electron microscope (TEM), elemental analysis and titration. Capacity of CO2 capture on modified bimodal pore structure silica at 70°C was calculated using breakthrough curves; and it was found that the modified UVM-7 captured more CO2 than unmodified UVM-7 and pore structure of UVM-7 make it suitable for loading large molecules such as tri-amino silanes. The adsorbents modified with tri-amino silane showed the largest capacity. Dynamic and kinetic of adsorption were investigated by mathematical models in order to prediction of adsorption behavior. Yoon Nelson model was successfully employed to describe the adsorption breakthrough curves of CO2 and Avrami model applied as a kinetic model and was in good agreement with experimental data in comparison with two other kinetic models including Lagergen’s pseudo-first and pseudo-second order models. UR - https://jchpe.ut.ac.ir/article_63712.html L1 - https://jchpe.ut.ac.ir/article_63712_67b24f8e3fb8996454606d8a466db139.pdf ER -