Synthesis of Hybrid Nano-Adsorbent for CO2 Adsorption

Please enable javascript in your browser.

Pourrangbar, Mohammad | 2012

2122 Viewed

Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 43158 (06)
University: Sharif University of Technology
Department: Chemical and Petroleum Engineering
Advisor(s): Molaei Dehkordi, Asghar; Rashidi, Ali Moradi
Abstract:
CO2 as a green house gas plays a significant role in the global warming and weather changes. Absorption by means of amine solutions is the main industrial technique for separating of CO2 from gas mixtures. Hazards associated with high temperature during solvent recovery, large size of equipment, corrosion, solvent degradation, and other reasons has made researchers to look for alternative processes such as adsorption. The aim of this study was to synthesis and modify the nano adsorbent for CO2 capture. To fulfill this purpose, various nano silica structures were synthesized and the amount of adsorption of each sample was determined. To investigate the performance capability nano_adsorbents, the adsorption isotherms at ambient temperature is also studied. Then, by modification of the effective parameters regarding activated carbon, the appropriate activated carbon was chosen.The final step of experiments envolves the proper loading of the hybrid of two aforementioned adsorbents for CO2 capturing.The experimental data obtained were satisfactorily correlated with theoretical isotherms such as Langmuir, Freundlich, and Langmuir – Freundlich
Keywords:
Carbon Dioxide ; Carbon Dioxide Absorption ; Activated Carbon ; Hybrid Nanoadsorbent