Balance Chemical Equation
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Cheng-Lin Liu National Engineering Research Center for Integrated Utilization of Salt Lake Resource, State Key Laboratory of Chemical Engineering, East trung quốc University of Science và Technology, Shanghai, ChinaCorrespondenceliuchenglin
You-Fa Jiang National Engineering Research Center for Integrated Utilization of Salt Lake Resource, State Key Laboratory of Chemical Engineering, East đài loan trung quốc University of Science & Technology, Shanghai, ChinaView further tác giả information
Dan Wang National Engineering Research Center for Integrated Utilization of Salt Lake Resource, State Key Laboratory of Chemical Engineering, East china University of Science and Technology, Shanghai, ChinaView further author information
Xing-Fu tuy nhiên National Engineering Research Center for Integrated Utilization of Salt Lake Resource, State Key Laboratory of Chemical Engineering, East china University of Science and Technology, Shanghai, ChinaView further author information
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Jian-Guo Yu National Engineering Research Center for Integrated Utilization of Salt Lake Resource, State Key Laboratory of Chemical Engineering, East đài loan trung quốc University of Science and Technology, Shanghai, ChinaCorrespondencejgyu
Utilization of CO2 as carbon source for preparation of sandy Al(OH)3 in concentrated KAl(OH)4 solutions: a kinetic study
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ABSTRACT
The emission of CO2 have led lớn the vital climate change commonly referred lớn global warming. Carbonation decomposition of potassium aluminate solutions is adopted for carbon capture và production of Al(OH)3 in this study. The influence of temperature in the range from 60°C lớn 90°C, caustic concentration in the range from 220 K2O L−1 to 280 g K2O L−1 và CO2 concentration in the range from 10% to một nửa on the precipitation ratio và crystal kích thước distribution of Al(OH)3 was investigated. The results indicated that the carbonation process of potassium aluminate can be divided into three periods, và the carbonation time decreased with the increase of the reaction temperature và CO2 concentration or reduction of the caustic concentration. The kinetic mã sản phẩm of carbonation decomposition of potassium aluminate solution is established based on the experimental results. By the comprehensive analysis above, the apparent activation energy is 59.35 kJ mol−1, demonstrating that the carbonation decomposition of potassium aluminate solution is easier than that of sodium aluminate solution.
Acknowledgments
The authors are greatly thankful to the National Key R&D Program of đài loan trung quốc (No. 2018YFB0605703). Cheng-Lin Liu conceived and designed the study, & wrote the paper. You-Fa Jiang và Dan Wang performed the experiments, acquisition of data, analysis & interpretation of data. Cheng-Lin Liu, Xing-Fu tuy vậy and Jian-Guo Yu reviewed and edited the manuscript. All authors read and approved the manuscript.
