||Role of Porosity Loss in Limiting SO2 Capture by Calcium Based Sorbents.
Newton, G. H. ;
Chen, S. L. ;
Kramlich, J. C. ;
||Energy and Environmental Research Corp., Irvine, CA.;Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.
Air pollution control ;
Sulfur dioxide ;
Calcium hydroxides ;
Calcium carbonates ;
Carbon dioxide ;
Particle size ;
Performance evaluation ;
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||The article discusses a study to determine the role of porosity loss in limiting SO2 capture by calcium based sorbents. The extent of high temperature (900-1300 C), short time (<1 s) SO2 capture was found to be limited by temperature dependent losses in the porosity of calcium based sorbents. At 970 C, these porosity losses were caused by CO2-activated sintering. Sulfation of the sorbents either prevented or reduced the extent of porosity losses. Slightly lower levels of SO2 capture by hydroxides from different commercial sources and significantly lower levels of capture by calcium carbonates compared to hydroxides were attributed to differences in particle size and the degree of porosity loss.
||Pub. in American Institute of Chemical Engineers Jnl., v35 n6 p988-994 Jun 89. Sponsored by Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.
|NTIS Title Notes
||Journal article Oct 85-Aug 87.
||Reprint: Role of Porosity Loss in Limiting SO2 Capture by Calcium Based Sorbents.
||PC A02/MF A01