국내 무연탄의 KOH활성화과정에서 발생되는 세척폐액의 제올라이트 합성특성

• 영문명: Synthetic Characterization of Zeolite on Leachates Generated from KOH Activation Using a Domestic Anthracite
• 발행기관: 한국환경에너지공학회
• 저자명: 이상은 박정은 백승한 배효진 김석휘
• 간행물 정보: 『환경에너지공학』제18권 제2호, 82~90쪽, 전체 9쪽
• 주제분류: 공학 > 환경공학
• 파일형태: PDF
• 발행일자: 2023.12.31

국문 초록

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.

목차

1. 서 론

2. 실험방법

3. 실험 결과

4. 결 론

감사의 글

References

키워드

무연탄 세척폐액 수열합성 제올라이트