種子有用成分抽出残渣を原料とする活性炭の製造

Abstract

The purpose of the present work is to study the feasibility of production of activated carbon from extraction residues of seeds which are jatropha， coffee and cypress. The extraction residues were at first carbonized and then activated by steam. The effects of activation conditions on the characteristics of the activated carbons obtained were experimentally investigated. The results are as follows. 1) From all the raw materials employed，activated carbons having a relatively high specific area could be produced. 2) especially these of jatropha are rich in micro-pores to diameter 0.5～0.8nm, and from measurements of adsorption equilibrium and adsorption rates these of jatropha were shown to be more effective as the separation material of N2 and O2 in air for pressure swing adsorption.