본 연구의 목적은 흡착 성능 및 산화 정화 기능이 우수한 Cu 이온교환 A형 Zeolite를 이용하여 생활 속의 악취물질 성분으로 알려진 Trimethylamine과 Nethylmercaptan의 제거 특성을 고찰하는데 있다.
본 연구에 이용된 Cu 이온교환 A형 Zeolite는 1g zeolite당 Cu^(2+)의 함유량을 2.5%, 5%, 10%, 20%의 비율로 혼합시켜 투입 질량 및 ...
본 연구의 목적은 흡착 성능 및 산화 정화 기능이 우수한 Cu 이온교환 A형 Zeolite를 이용하여 생활 속의 악취물질 성분으로 알려진 Trimethylamine과 Nethylmercaptan의 제거 특성을 고찰하는데 있다.
본 연구에 이용된 Cu 이온교환 A형 Zeolite는 1g zeolite당 Cu^(2+)의 함유량을 2.5%, 5%, 10%, 20%의 비율로 혼합시켜 투입 질량 및 반응시간을 변화시키면서 악취가스 제거 실험을 수행하였다.
또한 Cu 이온교환 A형 Zeolite의 흡착 특성의 우수성을 규명하기 위하여 Cu 이온교환 천연 Zeolite, 활성탄, 이온교환 시키지 않은 A형 Zeolite와의 비교 실험을 병행하였다.
이상과 같은 연구를 통하여 다음과 같은 주요 결론을 얻었다.
Cu 이온교환 A형 Zeolite(5%)의 질량 변화에 의한 제거 실험 결과, 반응시간 5분에서 트리메칠아민 제거율은 질량 0.05g, 0.1g, 0.2g에서 각각 83.3%, 86.7%, 91.7%의 제거율을 보여 질량이 많을수록 제거가 잘되는 것으로 나타났고, 메칠메르캅탄 제거실험에서는 질량 0.05g에서 90%, 0.1g에서 92%로 질량 변화에 관계없이 우수한 제거율을 나타냈다.
또한 질량 0.05g의 Cu 이온교환율을 2.5%, 5%, 10%, 20%로 변화시켜 트리메칠아민과 메칠메르캅탄 제거 실험결과 반응시간 5분에서 2.5%는 각각48.3%, 70%의 낮은 제거율을 보였고 5%, 10%, 20%는 각각 80%이상, 94%의 높은 제거율을 보여 흡착제로서의 가능성을 나타냈다.
그리고 5% Cu 이온교환 A형 Zeolite의 반응시간 변화에 의한 제거 실험결과 트리메칠아민 제거율은 5분, 10분, 20분, 40분, 60분에서 각각 83.3%, 86.7%, 86.7%, 90%, 90%로 반응시간이 길수록 제거가 잘 되는 반면, 메칠메르캅탄의 제거율은 5분, 10분, 20분, 40분, 60분에서 각각 90%, 94%, 96%, 98%, 98%로 짧은 시간에서도 높은 제거율을 보여 반응시간은 별 영향을 주지 못함을 알 수 있었다.
마지막으로 흡착제 종류에 의한 제거율 비교 실험 결과 이온교환 시키지 않은 A형 zeolite는 악취물질 종류에 관계없이 전혀 제거되지 않았고, 트리메칠아민 제거 실험에서는 5% Cu 이온교환 A형 Zeolite와 활성탄은 비슷한 제거율을 보였으며, 메칠메르캅탄 실험에서는 5% Cu 이온교환 A형 Zeolite와 5% Cu 이온교환 천연 Zeolite가 우수한 제거율을 보여 5% Cu 이온교환 A형 Zeolite가 가장 효과적인 흡착제로 나타났다.
본 연구의 목적은 흡착 성능 및 산화 정화 기능이 우수한 Cu 이온교환 A형 Zeolite를 이용하여 생활 속의 악취물질 성분으로 알려진 Trimethylamine과 Nethylmercaptan의 제거 특성을 고찰하는데 있다.
본 연구에 이용된 Cu 이온교환 A형 Zeolite는 1g zeolite당 Cu^(2+)의 함유량을 2.5%, 5%, 10%, 20%의 비율로 혼합시켜 투입 질량 및 반응시간을 변화시키면서 악취가스 제거 실험을 수행하였다.
또한 Cu 이온교환 A형 Zeolite의 흡착 특성의 우수성을 규명하기 위하여 Cu 이온교환 천연 Zeolite, 활성탄, 이온교환 시키지 않은 A형 Zeolite와의 비교 실험을 병행하였다.
이상과 같은 연구를 통하여 다음과 같은 주요 결론을 얻었다.
Cu 이온교환 A형 Zeolite(5%)의 질량 변화에 의한 제거 실험 결과, 반응시간 5분에서 트리메칠아민 제거율은 질량 0.05g, 0.1g, 0.2g에서 각각 83.3%, 86.7%, 91.7%의 제거율을 보여 질량이 많을수록 제거가 잘되는 것으로 나타났고, 메칠메르캅탄 제거실험에서는 질량 0.05g에서 90%, 0.1g에서 92%로 질량 변화에 관계없이 우수한 제거율을 나타냈다.
또한 질량 0.05g의 Cu 이온교환율을 2.5%, 5%, 10%, 20%로 변화시켜 트리메칠아민과 메칠메르캅탄 제거 실험결과 반응시간 5분에서 2.5%는 각각48.3%, 70%의 낮은 제거율을 보였고 5%, 10%, 20%는 각각 80%이상, 94%의 높은 제거율을 보여 흡착제로서의 가능성을 나타냈다.
그리고 5% Cu 이온교환 A형 Zeolite의 반응시간 변화에 의한 제거 실험결과 트리메칠아민 제거율은 5분, 10분, 20분, 40분, 60분에서 각각 83.3%, 86.7%, 86.7%, 90%, 90%로 반응시간이 길수록 제거가 잘 되는 반면, 메칠메르캅탄의 제거율은 5분, 10분, 20분, 40분, 60분에서 각각 90%, 94%, 96%, 98%, 98%로 짧은 시간에서도 높은 제거율을 보여 반응시간은 별 영향을 주지 못함을 알 수 있었다.
마지막으로 흡착제 종류에 의한 제거율 비교 실험 결과 이온교환 시키지 않은 A형 zeolite는 악취물질 종류에 관계없이 전혀 제거되지 않았고, 트리메칠아민 제거 실험에서는 5% Cu 이온교환 A형 Zeolite와 활성탄은 비슷한 제거율을 보였으며, 메칠메르캅탄 실험에서는 5% Cu 이온교환 A형 Zeolite와 5% Cu 이온교환 천연 Zeolite가 우수한 제거율을 보여 5% Cu 이온교환 A형 Zeolite가 가장 효과적인 흡착제로 나타났다.
The purpose of this study is to consider the possibilities that Cu-ion exchanged A zeolite, which is a good non-oxidizer as well as an effective adsorbent, can remove trimethylamine and methylmercaptan that are known as harmful constituents of bad smell.
In this study serial experiments for removing...
The purpose of this study is to consider the possibilities that Cu-ion exchanged A zeolite, which is a good non-oxidizer as well as an effective adsorbent, can remove trimethylamine and methylmercaptan that are known as harmful constituents of bad smell.
In this study serial experiments for removing the odorous gas were accomplished by changing the concentration of Cu-ion exchanged A zeolite as 2.5%, 5%, 10%, 20% and the experiments with the mixture were done by the change of mass and the passage of time.
Besides, to prove that Cu-ion exchanged A zeolite is an effective and promising adsorbent, the experiments were compared to the others with Cu-ion exchanged natural zeolite, activated carbon and Cu-ion non-exchanged A zeolite.
After the experiments I arrived at the conclusion as follows;
First, Cu-ion exchanged A zeolite by 5% concentration was prepared and it was experimented for the removal by the change of mass with 5-minutes time limit.
The removal efficiencies of trimetylamine were like these ; 83.3% with 0.05g, 86.7% with 0.1g, and 91.7% with 0.2g. So when the larger amount of zeolite was used, the more effectively the odorous gas was removed.
Also the removal efficiencies of methylmercaptan showed 90% with 0.05g and 92% with 0.1g. It means that Cu-ion exchanged A zeolite is an effective adsorbent with no relation to the change of mass.
Second, 0.05g of Cu-ion exchanged A zeolite was prepared and the concentration of the Cu-ion was changed from 2.5% to 20%. After 5 minutes the removal efficiency of trimethylamine was 48.3% and of methylmercaptan was only 70% by 2.5% concentration.
By 5%, 10%, and 20% concentration, the removal efficiency of trimethylamine was over 80% and of methylmercaptan was over 94%.
Therefore the experiments showed that zeolite had possibilities as a good adsorbent.
Third, the experiments were done by the change of time with 5% concentration of Cu-ion exchanged A zeolite. The removal efficiency of trimethylamine were 83.3% ter 5 minutes, 86,7% after 20 minutes, and 90% after an hour. This means time is an important factor on the removal of trimethylamine.
On the other hand the removal efficiencies of methylmercaptan were 90% after 5 minutes, 96% after 20 minutes, 98% after an hour, This proved the material to be very effective even with short time and the result showed that time is not an important factor on the removal of methylmercaptan.
The final job was the experiments with other kinds of adsorbents. Non-ion-exchanged A zeolite didn't remove any odorous gas. The removal efficiencies with 5% concentration of Cu-ion exchanged A zeolite and activated carbon of trimethylamine were similarly high. Both 5% concentration of Cu-ion exchanged A zeolite and 5% concentration of Cu-ion exchanged natural zeolite were quite effective on the removal of methylmercaptan.
Through these experiments it was found out that 5% concentration of Cu-ion exchanged A zeolite was the most effective adsorbent.
The purpose of this study is to consider the possibilities that Cu-ion exchanged A zeolite, which is a good non-oxidizer as well as an effective adsorbent, can remove trimethylamine and methylmercaptan that are known as harmful constituents of bad smell.
In this study serial experiments for removing the odorous gas were accomplished by changing the concentration of Cu-ion exchanged A zeolite as 2.5%, 5%, 10%, 20% and the experiments with the mixture were done by the change of mass and the passage of time.
Besides, to prove that Cu-ion exchanged A zeolite is an effective and promising adsorbent, the experiments were compared to the others with Cu-ion exchanged natural zeolite, activated carbon and Cu-ion non-exchanged A zeolite.
After the experiments I arrived at the conclusion as follows;
First, Cu-ion exchanged A zeolite by 5% concentration was prepared and it was experimented for the removal by the change of mass with 5-minutes time limit.
The removal efficiencies of trimetylamine were like these ; 83.3% with 0.05g, 86.7% with 0.1g, and 91.7% with 0.2g. So when the larger amount of zeolite was used, the more effectively the odorous gas was removed.
Also the removal efficiencies of methylmercaptan showed 90% with 0.05g and 92% with 0.1g. It means that Cu-ion exchanged A zeolite is an effective adsorbent with no relation to the change of mass.
Second, 0.05g of Cu-ion exchanged A zeolite was prepared and the concentration of the Cu-ion was changed from 2.5% to 20%. After 5 minutes the removal efficiency of trimethylamine was 48.3% and of methylmercaptan was only 70% by 2.5% concentration.
By 5%, 10%, and 20% concentration, the removal efficiency of trimethylamine was over 80% and of methylmercaptan was over 94%.
Therefore the experiments showed that zeolite had possibilities as a good adsorbent.
Third, the experiments were done by the change of time with 5% concentration of Cu-ion exchanged A zeolite. The removal efficiency of trimethylamine were 83.3% ter 5 minutes, 86,7% after 20 minutes, and 90% after an hour. This means time is an important factor on the removal of trimethylamine.
On the other hand the removal efficiencies of methylmercaptan were 90% after 5 minutes, 96% after 20 minutes, 98% after an hour, This proved the material to be very effective even with short time and the result showed that time is not an important factor on the removal of methylmercaptan.
The final job was the experiments with other kinds of adsorbents. Non-ion-exchanged A zeolite didn't remove any odorous gas. The removal efficiencies with 5% concentration of Cu-ion exchanged A zeolite and activated carbon of trimethylamine were similarly high. Both 5% concentration of Cu-ion exchanged A zeolite and 5% concentration of Cu-ion exchanged natural zeolite were quite effective on the removal of methylmercaptan.
Through these experiments it was found out that 5% concentration of Cu-ion exchanged A zeolite was the most effective adsorbent.
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