IMPROVEMENT OF CO2 PURIFYING SYSTEM BY PHOTOCATALYST FOR APPLICATION IN MICROALGAE CULTURE TECHNOLOGY

Doan Thi Oanh, Quach Thi Hoang Yen, Nguyen Thi Toan, Nguyen Quoc Trung, Tran Quế Chi, Nguyen Hong Chuyen, Tran Thi Minh Nguyet, Bui Thi Kim Anh, Dang Dinh Kim

Abstract


By reactive grinding method Vanadium-doped rutile TiO2 nanoparticle material was obtained with an average particle size of 20‐40nm, the Brunauer–Emmet–Teller (BET) specific surface area about 20 m2g−1 and it absorbed strongly in the UV region and increased at the visible wavelength of 430 – 570 nm. This study focused on the improvement of exhaust gas treatment from coal-fired flue gas of the traditional adsorption-catalysis system (Modular System for Treating Flue Gas - MSTFG) by using the V2O5/TiO2 Rutile as photocatalyst. The results showed that integrating both catalytic systems mentioned above increased the gas treatment efficiency: CO from 77 % to over 98 %, NOx from 50 % to 93 %, SO2 was absent as opposed to the input gas component. Also it showed that V2O5/TiO2 Rutile integrated with MSTFG has got high efficiency of CO treatment, also secured the high obtained CO2 concentration as a valuable carbon source for microagal mass culture as well as saving energy and simplifying devices.


Keywords


: traditional adsorption-catalysis system, photocatalyst, integrating, coal-fired flue gas, carbon source.

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DOI: https://doi.org/10.15625/0866-708X/54/1/6128 Display counter: Abstract : 62 views. PDF : 56 views.

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Published by Vietnam Academy of Science and Technology