Potential of Activated Carbon Derived from Local Common Reed in the Refining of Raw Cane Sugar

서지정보

ㆍ발행기관 : 한국탄소학회 ㆍ수록지정보 : Carbon Letters / 11권 / 3호
ㆍ저자명 : Ibrahim D-Abdullah, Badie S.Girgis, 2, Yassin M.Tmerek, Elsaid H

목차

1. Introduction
2. Experimental
3. Results and Discussion
4. Conclusions
References

한국어 초록

Common reed (Fragmites australis), a local invasive grass, was investigated as a possible feedstock for the production of
activated carbon. Dried crushed stems were subjected to impregnation with phosphoric acid (30, 40 and 50%) followed by
pyrolysis at 400~500oC with final washing and drying. Obtained carbons were characterized by determining: carbon yield, ash
content, slurry pH, textural properties and capacity to remove color bodies from factory-grade sugar liquor. Produced carbons
possessed surface area up to 700 m2/g, total pore volumes up to 0.37 cm3/g, and proved to be microporous in nature.
Decolorization of hot sugar liquor at 80oC showed degrees of color removal of 60 up to 77% from initial color of 1100~
1300 ICU, at a carbon dose of 1.0 g/100 ml liquor. No correlation seems to hold between synthesis conditions and % R but
depends on the degree of microporosity. A commercial activated carbon N showed a comparative better color removal
capacity of 91%. Common reed proved to be a viable carbon precursor for production of good adsorbing carbon suitable for
decolorization in the sugar industry, as well as in other environmental remediation processes.

영어 초록

Common reed (Fragmites australis), a local invasive grass, was investigated as a possible feedstock for the production ofactivated carbon. Dried crushed stems were subjected to impregnation with phosphoric acid (30, 40 and 50%) followed bypyrolysis at 400~500oC with final washing and drying. Obtained carbons were characterized by determining: carbon yield, ashcontent, slurry pH, textural properties and capacity to remove color bodies from factory-grade sugar liquor. Produced carbonspossessed surface area up to 700 m2/g, total pore volumes up to 0.37 cm3/g, and proved to be microporous in nature.Decolorization of hot sugar liquor at 80oC showed degrees of color removal of 60 up to 77% from initial color of 1100~1300 ICU, at a carbon dose of 1.0 g/100 ml liquor. No correlation seems to hold between synthesis conditions and % R butdepends on the degree of microporosity. A commercial activated carbon N showed a comparative better color removalcapacity of 91%. Common reed proved to be a viable carbon precursor for production of good adsorbing carbon suitable fordecolorization in the sugar industry, as well as in other environmental remediation processes.

참고 자료

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