SCI和EI收录∣中国化工学会会刊

›› 2011, Vol. 19 ›› Issue (3): 489-495.

• THERMODYNAMICS AND CHEMICAL ENGINEERING DATA • Previous Articles     Next Articles

Calculation and Verification for the Thermodynamic Data of 3CaO·3Al2O3·CaSO4

WANG Wenlong, CHEN Xiaodong, CHEN Ying, DONG Yong, MA Chunyuan   

  1. National Engineering Laboratory for Coal-fired Pollutants Emission Reduction, Shandong University, Jinan 250061, China
  • Received:2010-10-26 Revised:2011-02-09 Online:2011-06-28 Published:2011-06-28
  • Supported by:
    Supported by the National Natural Science Foundation of China(50906046);the National High-Tech Research and Development Program of China(2009AA05Z303);the Program for New Century Excellent Talents in University(NCET-10-0529)

Calculation and Verification for the Thermodynamic Data of 3CaO·3Al2O3·CaSO4

王文龙, 陈晓冬, 陈莹, 董勇, 马春元   

  1. National Engineering Laboratory for Coal-fired Pollutants Emission Reduction, Shandong University, Jinan 250061, China
  • 通讯作者: WANG Wenlong, E-mail: wwenlong@sdu.edu.cn
  • 基金资助:
    Supported by the National Natural Science Foundation of China(50906046);the National High-Tech Research and Development Program of China(2009AA05Z303);the Program for New Century Excellent Talents in University(NCET-10-0529)

Abstract: Calcium sulfoaluminate,3CaO·3Al2O3·CaSO4,has been widely recognized in the realms of high-temperature combustion and cement chemistry.However,the lack of relevant thermodynamic data limits the progress of its research and development.Through comparative calculations using several different approaches,we obtain the thermochemical properties of 3CaO·3Al2O3·CaSO4 in this work,such as its standard formation enthalpy,Gibbs free energy of formation,entropy,and molar heat capacity.With these fundamental data,thermodynamic calculations become possible for reactions involving this mineral.It is found that some reactions proposed in literature to generate this mineral may not proceed thermodynamically.

Key words: calcium sulfoaluminate, standard formation enthalpy, Gibbs free energy of formation, entropy, molar heat capacity

摘要: Calcium sulfoaluminate,3CaO·3Al2O3·CaSO4,has been widely recognized in the realms of high-temperature combustion and cement chemistry.However,the lack of relevant thermodynamic data limits the progress of its research and development.Through comparative calculations using several different approaches,we obtain the thermochemical properties of 3CaO·3Al2O3·CaSO4 in this work,such as its standard formation enthalpy,Gibbs free energy of formation,entropy,and molar heat capacity.With these fundamental data,thermodynamic calculations become possible for reactions involving this mineral.It is found that some reactions proposed in literature to generate this mineral may not proceed thermodynamically.

关键词: calcium sulfoaluminate, standard formation enthalpy, Gibbs free energy of formation, entropy, molar heat capacity