Accepted Manuscript Estimation of the solid circulation rate in circulating fluidized bed systems Michael Stollhof, Stefan Penthor, Karl Mayer, Hermann Hofbauer PII: S0032-5910(18)30405-4 DOI: doi:10.1016/j.powtec.2018.05.033 Reference: PTEC 13406 To appear in: Powder Technology Received date: 22 November 2017 Revised date: 8 May 2018 Accepted date: 16 May 2018 Please cite this article as: Michael Stollhof, Stefan Penthor, Karl Mayer, Hermann Hofbauer , Estimation of the solid circulation rate in circulating fluidized bed systems. The address for the corresponding author was captured as affiliation for all authors. Please check if appropriate. Ptec(2017), doi:10.1016/j.powtec.2018.05.033 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.