An experimental and modeling study on incipient hydrate-forming conditions for ternary guests of carbon dioxide, nitrogen and sulfur dioxide
- Authors
- Rho, Won Gu; Kim, Sun Hyung; Cho, Dong-Woo; Kang, Jeong Won; Lee, Chul Soo
- Issue Date
- 15-10월-2018
- Publisher
- ELSEVIER
- Keywords
- Hydrates; Sulfur dioxide; Nitrogen; Carbon dioxide; Lattice fluid equation of state
- Citation
- FLUID PHASE EQUILIBRIA, v.473, pp.127 - 131
- Indexed
- SCIE
SCOPUS
- Journal Title
- FLUID PHASE EQUILIBRIA
- Volume
- 473
- Start Page
- 127
- End Page
- 131
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/72483
- DOI
- 10.1016/j.fluid.2018.05.020
- ISSN
- 0378-3812
- Abstract
- In carbon dioxide capture and sequestration (CCS) processes, captured CO2 may encounter conditions of hydrate formation due to the presence of water. For stable, long-term operation of CCS processes, hydrate-phase equilibrium data are essential. Captured CO2 from combustion of fossil fuel may include other impurities such as N-2 and SO2. Phase equilibria including a single impurity (N-2 or SO2) have been reported by other researchers, but no experimental observations have been obtained for ternary guest systems. In this work, the incipient hydrate-forming temperatures for a binary guest of CO2 and N-2 and a ternary guest of CO2, N-2 and SO2 were experimentally measured at 2.0-3.5 MPa. An effect of the ratio between guest components and water was observed. The experimental results were compared with calculations using an equation of state based on a hydrogen-bonding nonrandom lattice fluid (NLF-HB) combined with the van der Waals-Platteeuw model. The model predictions were in good agreement with experimental data with an overall average deviation of 2.6%. (C) 2018 Elsevier B.V. All rights reserved.
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Collections - Graduate School of Energy and Environment (KU-KIST GREEN SCHOOL) > Department of Energy and Environment > 1. Journal Articles
- College of Engineering > Department of Chemical and Biological Engineering > 1. Journal Articles
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