Sodium alginate polymer as a kinetic inhibitor of methane hydrate formation
| Autor: | Letícia Vitorazi, Isabella Leite Ferraz, Dênis Fernandes do Nascimento, José Adilson de Castro, Bárbara Louise Lemos Drumond Silva |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Kinetic Inhibitor
Materials science Clathrate hydrate Flow assurance 02 engineering and technology Polysaccharide 01 natural sciences Methane Biomaterials chemistry.chemical_compound Natural gas 0103 physical sciences Gas hydrate 010302 applied physics chemistry.chemical_classification Mining engineering. Metallurgy business.industry Metals and Alloys TN1-997 Polymer 021001 nanoscience & nanotechnology Surfaces Coatings and Films Natural polymer Kinetic inhibitor chemistry Chemical engineering Ceramics and Composites 0210 nano-technology Hydrate business Sodium alginate |
| Zdroj: | Journal of Materials Research and Technology, Vol 12, Iss, Pp 1999-2010 (2021) |
| ISSN: | 2238-7854 |
| Popis: | Gas hydrates are ice-like compounds that can affect the flow assurance in oil and gas pipelines due to their structural characteristics. Alginate is a polysaccharide naturally derived from the brown seaweed Phaeophyceae and is produced as an extracellular material by bacteria, such as Pseudomonas and Azotobacter. The novelty of using alginate as a natural gas hydrate inhibitor was investigated in this paper. To predict the amount of methane hydrates that formed over time, a modified Johnson−Mehl−Avrami−Kolmogorov model (JMAK) was applied. It is noted that for the studied polymer, lower concentrations of 0.1% (wt./vol) showed better inhibitory potential, and acidic pH was favorable to this behavior. The system that behaved best against methane gas hydrate inhibition was 0.1% (wt./vol) pH 4. Alginate showed a good inhibitory capacity. The JMAK model was found to be suitable for describing the crystallization kinetics of the studied systems. The kinetic parameters were calculated for this model. This study describes a new way to explore the potential of alginate as a kinetic inhibitor by delaying the formation of hydrates. |
| Databáze: | OpenAIRE |
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