Patent ID: 8163249

Claim:
A multiple-stage granular moving-bed apparatus, comprising: a first integrated moving-bed unit, having a first inlet part for a raw gas to flow therein, a first outlet part for a partially-cleaned gas to flow thereout, and a plurality of first flow-corrective elements disposed in the first integrated moving-bed unit between the first inlet part and the first outlet part for defining two first channels, each first channel for individual stage of technological process; a second integrated moving-bed unit, disposed above the first integrated moving-bed unit, having a second inlet part for the partially-cleaned gas to flow therein, a second outlet part for a completely-cleaned gas to flow thereout, and a plurality of second flow-corrective elements disposed in the second integrated moving-bed unit between the second inlet part and the second outlet part for defining two second channels, each second channel for individual stage of technological process, and at least one second channel is communication with the at least one first channel; and at least one fresh and clean granular material, flowing from at least one of the second channels for reacting with the partially-cleaned gas so that the fresh and clean granular material is formed to be a partially-used granular material, and the partially-used granular material further flow through at least one of the first channels, wherein the raw as entering the first integrated moving-bed unit from the first inlet part and passing the partially-used granular materials so as to be filtered into the partially-cleaned gas, and then the partially-cleaned gas being guided to flow into the second integrated moving-bed unit from the second inlet part and passing fresh and clean granular materials and thus further being processed into the complete cleaned gas to be discharged out from the second outlet part.