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Mechanism of Flue Gas Desulfurization with Sodium Phosphate Solution
Author(s) -
Yuan Zhiguo,
Song Wei,
Liu Youzhi,
Kang Xiaofeng,
Peng Bo
Publication year - 2014
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201400301
Subject(s) - flue gas desulfurization , phosphoric acid , chemistry , phosphate , flue gas , buffer solution , sodium , buffer (optical fiber) , inorganic chemistry , phosphate buffered saline , chemical engineering , chromatography , organic chemistry , telecommunications , computer science , engineering
To provide theoretical instructions for experiments and industrial application of regenerative flue gas desulfurization by sodium phosphate solution, the properties of phosphate solution and multiple buffer solution system of phosphoric acid‐sulfurous acid‐sodium salts formed from the desulfurization process were analyzed using the theory of multiple buffer solution combined with the chemical equilibrium principle and computer numerical calculation methods. The influence of pH and phosphate concentration on the distribution coefficient and buffer capacity was calculated and validated by experiments. Results indicate that the distribution coefficient of the species in buffer solution only varied with the solution pH value. The experimental buffer performance was similar to the theoretical value.