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</html>";s:4:"text";s:7864:"Universidade Federal do ABC (UFABC) The liquid used is a solution of NaOH or KOH at a concentration between 15 to 20g / L (1.5% to 2% m/m). In the present study, the impact of NaOH concentration, operating temperature and nozzle diameter on removal efficiency of CO2 is explored through experimental study. Home Science Math History Literature Technology Health Law Business All Topics Random. Recently, Baciocchi et al. Moreover, the reaction kinetic of NaOH with CO2 is studied over the temperature range of 50–100 °C in a laboratory-scale spray dryer absorber. Carbon dioxide (CO2) is an influential greenhouse gas that has a significant impact on global warming partly. (2) with increasing and decreasing j-values.For j = 40 this fraction is 0.012. In the present contribution, a simple reaction rate equation is proposed that shows the lowest deviation from the experimental data with error less than 2%. H��W[o���y��G��ryku�$HO�T}p�@KkY�M*��ɿ?���R��� y����7��^���r{r6;y�Z+�fW'ubT�?m��Vu�!����$���$M�4-�l������45�X��O��4ij1��a�~��Y�k�h������o�dD�2��L���%���TˑL����m&G�$��s8��i���S��.��i�dXц�}�ӿfol�D�$Q��@2]xѯNs� �&)���U8��Q� �3�h��I8ڜ։}��ቚ��'d���!R���ERW�&�*Ӥ0��ebz'��tF������x��m�������xZ%Y��M�GݗU\$:ZȦ��3����W�]����]�W�Ցz'��T籵�|#�����?�I�h�4�<
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�i4�r��~�i��b"�Z2�����T��?L���� �W�F*���;�. Chemistry . Since the spray dryer has high removal efficiency rate, a laboratory-scale spray dryer is used to absorb carbon dioxide from air in aqueous solution of NaOH. Peer review under responsibility of Southwest Petroleum University. This number decreases according to eq. about 300 m. Nowadays, many techniques are available to control and remove CO2 in different chemical processes. Production and hosting by Elsevier B.V. on behalf of KeAi Communications Co., Ltd. https://doi.org/10.1016/j.petlm.2016.11.006. Definately, CO2 absorbed by KOH or NaOH. This means that emitted infrared radiation that falls within the absorption region of the line j = 40 is saturated over a distance that is about 6 times the absorption length for j = 16 i.e. By continuing you agree to the use of cookies. The fraction of the molecules for j = 16 is as indicated 0.078. %PDF-1.3
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Can sodium hydroxide absorb … But it require enormously large quantity of KOH or NaOH. The proposed model satisfactorily simulates the experimental data and it is reliable. ScienceDirect ® is a registered trademark of Elsevier B.V. ScienceDirect ® is a registered trademark of Elsevier B.V. A novel rate of the reaction between NaOH with CO. © 2016, Southwest Petroleum University. In the present study, the impact of NaOH concentration, operating temperature and nozzle diameter on removal efficiency of CO2 is explored through experimental study. (11) and Zeman (4) considered packed-tower systems with NaOH solution to capture atmospheric CO 2 for climate change mitigation, estimating energy requirements of 30 kJ e/mol-CO 2 and88kJ e/mol-CO 2 captured,respectively,withvarying absorber designs and input parameter … to absorb atmospheric CO 2 for purposes other than climate change mitigation (8–10). Wire mesh was used as packings. We use cookies to help provide and enhance our service and tailor content and ads. Abstract: A cross-flow rotating packed bed (RPB) was applied to absorb carbon dioxide (CO2) by NaOH solution from gaseous streams. Copyright © 2020 Elsevier B.V. or its licensors or contributors. Since the spray dryer has high removal efficiency rate, a laboratory-scale spray dryer is used to absorb carbon dioxide from air in aqueous solution of NaOH. The cross-flow RPB has an inner radius of 2.4 cm, an outer radius of 4.4 cm and an axial height of 12.0 cm. NaOH + CO2 --> NaHCO3 Ask Login. The effect of absorbent concentration, operating temperature and nozzle diameter is investigated. KOH is more effective to absorb CO2, because NaOH also absorb water. 1 0 obj<>
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