| 학회 | 한국화학공학회 |
| 학술대회 | 2007년 가을 (10/26 ~ 10/27, 한국과학기술원) |
| 권호 | 13권 2호, p.2032 |
| 발표분야 | 에너지/환경 |
| 제목 | 마이크로세공 분자체를 이용한 탄화수소에 포함된 황화물의 선택적 제거 |
| 초록 | The effects of the metal-cation exchange, metal-cation content, on the adsorption tetrahydrothiophene (THT) and tert-butylmercaptan (TBM) in natural gas over Na-Y zeolites were examined. The adsorption capacity was measured by means of fixed-bed desorption/breakthrough techniques at 30 ℃ and atmospheric pressure. In order to improve the adsorption ability, ion exchange was performed on Y zeolites with alkali metal cations Li+, Na+, K+, and transition metal ions Cu2+, Ni2+, Co2+, Ag2+. Compared to commercial Na-Y, Cu-Na-Y and Ag-Na-Y adsorbed significantly larger amounts of both THT and TBM at ambient conditions. For ion-exchanged Na-Y zeolites, the breakthrough adsorption capacity followed the order Cu2+ ≥ Ag2+＞ Na+ ＞ K+∼Li+＞ transition metal ions. The adsorption capacity for THT and TBM on the best adsorbent Cu-Na-Y-0.1, which was ion-exchanged with 0.1M copper nitrate solution, were 1.87 and 0.84 mmol-S/g at breakthrough, respectively. The results show that the high capacity of promising adsorbents Y due to the cations (especially in Cu2+ in Y zeolite) in the zeolitic structure which exhibit strong electrostatic interactions with sulfur compounds and an appropriate pore size. |
| 저자 | 정갑순1, 우희철1, 보티린1, 이현철2, 이두환2, 김순호2 |
| 소속 | 1부경대, 2삼성종합기술원 |
| 키워드 | Na-Y; sulfur; selective; adsorption |
| 원문파일 | 초록 보기 |
