| 학회 | 한국화학공학회 |
| 학술대회 | 2021년 봄 (04/21 ~ 04/23, 부산 BEXCO) |
| 권호 | 27권 1호, p.706 |
| 발표분야 | 열역학 분자모사 |
| 제목 | Assessment of kinetic behavior and separation capacity of HFC-152a hydrate-based desalination using an experimental measurement and a thermodynamic correlation |
| 초록 | Hydrate-based desalination (HBD), a type of freezing-based desalination, can produce clean water via hydrate formation. Previously, low energy efficiency was considered a critical disadvantage of this technology, but with the recent proposal of a high-efficiency process using cold energy of LNG, the economic feasibility of HBD have been re-evaluated. In this study, growth behavior and desalination capacity of HFC-152a HBD were investigated by comparing them with those of HFC-134 HBD. The faster formation kinetics and higher extent of the hydrate conversion were observed for the HFC-152a hydrate despite the smaller initial driving force. In addition, to quantify the desalination efficiency of HFC-152a HBD, the maximum achievable salinity and maximum water yield were examined by employing a Hue-Lee-Sum correlation. The efficiency of salt-enrichment and water recovery decreased with an increase in the initial salinity and increased with increasing the subcooling. The overall results indicate that HFC-152a is a better candidate for HBD than HFC-134a. The novel approach suggested in this study will be useful for evaluating the desalination efficiency of the HBD process. |
| 저자 | 목정훈 1 , 최원중 2 , 서용원 2 |
| 소속 | 1 UNIST, 2 unist |
| 키워드 | 열역학 ; 상평형 |
| 원문파일 | 초록 보기 |
