A zeolite material (ZCH) was synthesized from coal fly ash in an HD thermal power plant using a fusion/hydrothermal method. ZCH with high crystallinity could be synthesized at the NaOH/CFA ratio of 0.9. Ion-exchanged ZCH adsorbents for ammonia removal were prepared by ion-exchanging various cation (Cu2+, Co2+, Fe3+, and Mn2+) on the ZCH. They were used to evaluate the ammonia adsorption breakthrough curves and adsorption capacities. The ammonia adsorption capacities of the ZCH and ion-exchanged ZCHs were high in the order of Mn-ZCH > Cu-ZCH ≅ Co-ZCH > Fe-ZCH > ZCH according to NH3-TPD measurements. Mn-ZCH ion-exchanged with Mn has more Brønsted acid sites than other adsorbents. The ion-exchanged Cu2+, Co2+, Fe3+, or Mn2+ ions uniformly distributed on the surface or in the pores of the ZCH, and the number of acidic sites increased on the alumina sites to form the crystal structure of zeolite material. Therefore, when the ion-exchanged ZCH was used, the adsorption capacity for ammonia gas increased.

Abstract
1. 서 론
2. 재료 및 방법
    2.1. 흡착제 제조
    2.2. 흡착제의 물리화학적 특성 분석
    2.3. 실험 장치 및 방법
    2.4. 암모니아 승온 탈착 실험
3. 결과 및 고찰
    3.1. 제올라이트 흡착제 제조
    3.2. 흡착제의 NH3-TPD 평가
    3.3. 암모니아 가스 흡착파과곡선
    3.4. 암모니아 흡착량 평가
4. 결 론
감사의 글
REFERENCES

• 박종원(부산가톨릭대학교 소방방재학과) | Jong-Won Park (Department of Fire and Disaster Prevention, Catholic University of Pusan, Busan 46252, Korea)
• 곽주영(삼두종합기술(주) 기술연구소) | Joo-Young Kwak (Samdoo Total Engineering, Ulsan 44776, Korea)
• 이창한(부산가톨릭대학교 환경행정학과) | Chang-Han Lee (Department of Environmental Adminstration, Catholic University of Pusan, Busan 46252, Korea) Corresponding Author