Abstract: A new type of tubing bomb reactor-resonant reactor has been designed.It can be operated under hydrogen pressure up to 150 atm and vibrated at a frequency of 600 to 1200 cpm with an amplitude of 15-25 mm.With the help of a fluidized sand bath,the reactor can be heated from room temper-ature to 300℃ at a speed of about 200℃/min,and it can be cooled down from reaction to ambient temperature by water quench at a speed of about 600℃/min.By using the catalytic hydrodesulfurization of thiophene as a model re-action,the diffusion-reaction model in slurry bed,especially the effect of deposit and diffusion,was studied.It was observed that when a steel ball or a metal cage was in the reactor tube and the frequency was higher than 860 cpm,the effect of diffusion both from gas to liquid and from liquid to solid could be eliminated effectively.So this reactor is thought to be a po-werful tool for studying the intrinsic kinetics in slurry bed system.