The document describes experiments measuring the entrainment of cohesive particles in a circulating fluidized bed (CFB). It discusses three methods tried: shadowgraphy analysis using high-speed cameras, local flux probes, and total entrainment measurements. Issues encountered included particle loss through the gas outlet, inefficient cyclones, and standpipe buildup. The shadowgraphy analysis and flux probes provided some data but had limitations, such as difficulty focusing cameras and controlling gas flow precisely. Overall the experiments aimed to understand how gas velocity, particle size, and bed weight impact radial flux profiles and total entrainment in the CFB.