Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Journal of Fuel Chemistry and Technology》 2001-02
Add to Favorite Get Latest Update

CHARACTERISTICS OF SULFUR DIOXIDE ABSORPTION IN MULTI-COMPONENT SUSPENSIONS

LIU Ni, GAO Xiang, LUO Zhong-yang, KONG Hua, CEN Ke-fa (Clean Energy and Environment Engineering Key Lab of Ministry of Education, Zhejiang University, Hangzhou 310027, China)  
The emission of sulfur dioxide in flue gases is an important problem in industry involving combustion of coal The wet scrubbing process using lime/limestone slurry as the scrubbing medium is currently the dominant technology for the flue gas desulfurization Due to the presence of numerous ionic and neutral species in the slurry, the chemical reactions involved in the slurry upon absorption of sulfur dioxide are complex In this paper, a method of measuring the sulfur dioxide absorption in multi-component suspensions was developed and the characteristics of sulfur dioxide absorption were investigated The results show that different additives chosed in the experiment can improve the ability of SO_2 absorption As to the same additive, the improvement effect is differ with different concentration For the magnesium hydroxide additive, its optimum concentration is 1×10 -4*#mol/L Experiment results suggested that dissolved sulfur dioxide reacts mainly with the magnesium sulfite ion pair which is responsible for the increased absorption rate of SO_2 However, when CO 2-_3 or SO 2-_4 anions are present in the solution, the catalytic effect of magnesium hydroxide precipitate on sulfur dioxide absorption reduces According to the experiments, absorbents with better performance can be optimized to be applied in semi-dry or wet FGD process to raise SO_2 removal efficiency
【Fund】: 国家重点基础研究专项发展规划! (G19990 2 2 2 0 1 0 5 )&&
【CateGory Index】: X13
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved