Additional Supporting Information may be found in the online version of this article.

AIC_12725_sm_suppinfoFigureSI1.tif64KFigure SI1 Reduction of heat losses through micro-segmentation of alternating endo/exothermal fluidization compartments: Dual versus multi-compartment configuration.
AIC_12725_sm_suppinfoFigureSI2.tif278KFigure SI2 Features of geometries (as in Fig. 4) (a) F_B, (b) C120_B, (c) C120_F, (d) C120_D. Bed height at rest Freeboard region.
AIC_12725_sm_suppinfoFigureSI3.tif255KFigure SI3 Workflow algorithm for image analysis in MATLAB code to estimate bubbles properties (size, velocity and frequency).
AIC_12725_sm_suppinfoFigureSI4.tif72KFigure SI4 Calibration data for flat (F), corrugated 90° (C90), corrugated 120° (C120) walls generated with circular and rectangular disks of various sizes.
AIC_12725_sm_suppinfoFigureSI5.tif143KFigure SI5 Effect of clearance between the walls, and FWBFB and CWBFB arrangements on at minimum bubbling conditions. Ratio taken at same clearance and initial height of beds.
AIC_12725_sm_suppinfoFigureSI6.tif988KFigure SI6 Time-averaged gas holdup contours (XY planes at three z-locations) in FWBFB (C = 0.028 m) and CWBFB (C1 = 0.015 m) at Ug = Umb show that CWBFB offers better gas distribution and higher holdup along necks (a) F_B, (b) C120_B. Features of geometries along XY and YZ planes described in Figs. 4 and SI2.
AIC_12725_sm_suppinfoFigureSI7.tif436KFigure SI7 Biased flow direction of gas due to parallel inclined channels as a function of gas flow rate in C90_F CWBFB (C1 = 0.015 m).
AIC_12725_sm_suppinfoFigureSI8.tif931KFigure SI8 Trajectography of bubble centroids over 30 s in bubbling regime at 1.4 Umb, vessel front view (a) C90_F (Umb = 0.627 m/s), (b) C90_D (Umb = 0.724 m/s). (Hi = 0.3 m, and C = 0.028 m or C1 = 0.015 m).
AIC_12725_sm_suppinfoFigureSI9.tif115KFigure SI9 Mechanism of bubble growth in corrugated gas-solid fluidized beds at Ug = 1.4Umb : (a) F_B, (b) C120_B, (c) C90_D : (C = 0.028 m, C1 = 0.015 m).
AIC_12725_sm_suppinfoTableSI1.doc99KTable SI1 Two-fluid conservation equations implemented in Fluent.

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