超声波解吸柠檬酸盐溶液中二氧化硫的研究

• Published in: 中国化学工程学报（英文版） Vol. 15; no. 4; pp. 486 - 491
• Main Authors: 薛娟琴, 孟令嫒, 沈彬彬, 杜士毅, 兰新哲
• Format: Journal Article
• Language: Chinese
• Published: School of Metallurgical Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China 2007
• Subjects: acoustic cavitation; ultrasonic degassing; citrate; flue gas desulphurization; desorption efficiency
• ISSN: 1004-9541

TQ02; Using a sonochemical reactor designed by the authors, the process of removing sulfur dioxide from citrate solution simulating the flue gas desulfurization was studied. The influence of ultrasonic frequency, ultrasonic power, reaction temperature, stirring speed, inert gases, initial concentration of sulfur dioxide and concentration of citrate on the efficiency of sulfur dioxide desorption, the stability of citrate solution and the concentration of sulfate radical was examined systematically. By comparing the desorption of sulfur dioxide with and without ultrasonification, it was concluded that (1) lower ultrasonic frequency results in a better degassing efficiency; (2) the use of ultrasonification in desorbing sulfur dioxide from citrate solution improves the desorbing efficiency in some conditions, without changing the essence of chemical reactions; (3) sparging inert gas into the liquid can lower the viscosity of solution and the cavitating threshold, and raise the desorption efficiency. These results