S1 Single Bubble Dynamics in A Dense Phase Fluidized Sand Bed Biomass Gasification Environment. Nicolas Torres Brauer a , Benito Serrano Rosales b , Hugo de Lasa a * a Chemical Reactor Engineering Centre (CREC), Faculty of Engineering Science, Department of Chemical and Biochemical Engineering, Western University, London, Ontario, N6A 5B9, Canada b Unidad Académica de Ciencias Químicas, Programa de Ingeniería Química, Universidad Autónoma de Zacatecas, Campus UAZ Siglo XXI, Zacatecas, Zacatecas, 98160, México * Corresponding Author (hdelasa@uwo.ca). Supporting information