Biao Wang and  Tao Li and  Qi-wen Sun and  Wei-yong Ying and  Ding-ye Fang,  Solid Concentration in Circulating Fluidized Bed Reactor for the MTO Process.   journal   = {International Journal of Chemical and Molecular Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2010, vol. 37(1). 111 - 117
    [viewed 22 October 2019]. Available from: https://publications.waset.org/pdf/4340.