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KCI등재후보 학술저널

국내 무연탄의 KOH활성화과정에서 발생되는 세척폐액의 제올라이트 합성특성

The process of preparing activated carbon through chemical activation with KOH results in a substantial generation of wastewater during the washing phase. Anthracite contains ash components such as Al2O3, SiO2, Fe2O3, etc., and these can leach into the water following KOH activation. In this investigation, zeolite synthesis utilized the washed water. Hydrothermal synthesis was conducted for 12 hours at temperatures of 100oC, 130oC, 150oC, and 190oC. Subsequently, the synthesized solution, post-reaction completion, was segregated into supernatants and subnatants for the comprehensive analysis of the recovered solids. Under a Si/Al molar ratio of 1.0, ZSM-12 was synthesized for the supernatant, while Zeolite-F was synthesized for the subnatant. Furthermore, upon scrutinizing solids synthesized within the range of a Si/Al molar ratio from 0.05 to 0.5, it was evident that a lower alumina content resulted in a higher synthesis of ZSM-12, whereas a higher alumina content correlated with an increased synthesis of Zeolite-F. Additionally, it was established that zeolite synthesis exhibited improved performance with the escalation of hydrothermal temperature. These findings suggest the potential for deriving high-value resources from inorganic components produced as by-products in the manufacturing process, alongside the production of activated carbon as a carbon material for anthracite.

1. 서 론

2. 실험방법

3. 실험 결과

4. 결 론

감사의 글

References

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