- PII
- S0044453725060085-1
- DOI
- 10.31857/S0044453725060085
- Publication type
- Article
- Status
- Published
- Authors
- Volume/ Edition
- Volume 99 / Issue number 6
- Pages
- 887-894
- Abstract
- The application of energy-efficient and environmentally safe technology of gas hydrate crystallization for purification of natural gas from hydrogen sulfide (HS) and carbon dioxide (CO) is considered. Thermodynamic modeling of the influence of HS and CO concentrations from 1.00 to 20.00 mol. % on gas hydrate dissociation pressures and filling of gas hydrate cavities with the gas mixture CH — CH — CH — n-CH — CO — HS — N in the temperature range of 273.15—283.15 K has been carried out. It is obtained that increasing the concentration of HS leads to a significant decrease in the dissociation pressures of gas hydrates. The filling of small gas hydrate cavities with HS molecules reaches 0.91. Increasing the concentration of CO leads to a slight increase in the dissociation pressures of gas hydrates. It is found that CO is poorly concentrated in the gas hydrate phase of the considered gas mixture. To extract CO it is necessary to apply multiple gas hydrate crystallization or to use natural gas deposits with low concentrations of CH.
- Keywords
- давления диссоциации газовые гидраты природный газ диоксид углерода сероводород
- Date of publication
- 09.12.2024
- Year of publication
- 2024
- Number of purchasers
- 0
- Views
- 12
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