公开(公告)号：US3910849A

公开(公告)日：1975-10-07

申请号：US43066474

申请日：1974-01-04

Applicant: AGENCY IND SCIENCE TECHN

Inventor： KAWABATA JUN-ICHI ,  TAZAKI YONESIRO ,  MITSUI SHIGEO ,  NIIKAWA KAZUHIKO

IPC: C01B31/08 ,  B01J8/28 ,  B01J20/20 ,  C01B31/10 ,  B01J37/00

CPC classification number: B01J8/28 ,  C01B32/336

Abstract: At least two horizontal perforated plates are vertically spaced. A powdered or granular carbonaceous substance is fed onto the lowermost of the perforated plates and, at the same time, a hot activating gas is introduced upwardly from below the lowermost horizontal perforated plate so that the activated portion of said powdered or granular carbonaceous substance is allowed to ascend to and form a fluidized bed on successively higher perforated plates. The activated carbon of the highest grade of quality collects on the uppermost perforated plate as the final product. The manufacture of activated carbon described above is accomplished by use of an apparatus which comprises, in combination, at least two horizontal perforated plates having holes of a fixed diameter distributed at a fixed rate, two inlets disposed at a lower part of the apparatus, one for admitting the carbonaceous substance and the other for permitting introduction of the activating gas, and two outlets disposed at an upper part of the apparatus, one for discharging the activated carbon as the product and the other for releasing the spent activating gas.

Abstract translation: 至少两个水平多孔板垂直间隔。 将粉状或颗粒状碳质物质供给到最下面的多孔板上，并且同时从最下面的水平多孔板的下方向上引入热活化气体，使得允许所述粉末或颗粒状含碳物质的活化部分 在连续更高的多孔板上升起并形成流化床。 最高质量的活性炭作为最终产品聚集在最上面的多孔板上。