Patent ID: 8343430

Claim:
A compact two-stage granular moving-bed apparatus, comprising: a vessel comprising a hollow interior enclosed by a first side structure, a second side structure, and a top side structure, and the vessel further including a gas inlet formed on the first side structure, a gas outlet formed on the second side structure, and a first media outlet and a second media outlet respectively formed on the bottom of the vessel, wherein the gas outlet, the gas inlet, the first media outlet and the second media outlet are in communication with the hollow interior; a flow-corrective element, disposed inside the hollow interior, for dividing the hollow interior into a first channel and a second channel; and a filter material supplying part, coupled to the top side structure and communicated with the hollow interior, having a first provider for providing a first granular material flowing through the first channel and a second provider for providing a second granular material flowing through the second channel; wherein an exhaust gas entering from the gas inlet in turn passes through the first and second granular material and exists from the gas outlet, and a vertical level of each first and second provider is adjustable so that a first flow path that the exhaust gas flows through the first granular material and a second flow path that the exhaust gas flow through the second granular material is respectively capable of being controlled.