Impact of Low-Dosage Inhibitors on Clathrate Hydrate Stability

2010 ◽  
Vol 287 (1) ◽  
pp. 168-176 ◽  
Author(s):  
Tatiana Kuznetsova ◽  
Alla Sapronova ◽  
Bjørn Kvamme ◽  
Klaus Johannsen ◽  
Jarle Haug
Keyword(s):  
Clathrate Hydrate ◽  
Low Dosage ◽  
Hydrate Stability

scholarly journals Enhanced Hydrate-Based Geological CO2 Capture and Sequestration as a Mitigation Strategy to Address Climate Change

Energies ◽  
2020 ◽  
Vol 13 (21) ◽  
pp. 5661
Author(s):  
Jyoti Shanker Pandey ◽  
Yousef Jouljamal Daas ◽  
Adam Paul Karcz ◽  
Nicolas von Solms
Keyword(s):  
Amino Acids ◽  
Co2 Capture ◽  
Injection Pressure ◽  
Address Climate Change ◽  
Gas Uptake ◽  
Co2 Capture And Storage ◽  
Formation Kinetics ◽  
And Storage ◽  
Low Dosage ◽  
Hydrate Stability

Geological sequestration of CO2-rich gas as a CO2 capture and storage technique has a lower technical and cost barrier compared to industrial scale-up. In this study, we have proposed CO2 capture and storage via hydrate in geological formation within the hydrate stability zone as a novel technique to contribute to global warming mitigation strategies, including carbon capture, utilization, and storage (CCUS) and to prevent vast methane release into the atmosphere caused by hydrate melting. We have attempted to enhance total gas uptake and CO2 capture efficiency in hydrate in the presence of kinetic promoters while using diluted CO2 gas (CO2-N2 mixture). Experiments are performed using unfrozen sands within hydrate stability zone condition and in the presence of low dosage surfactant and amino acids. Hydrate formation parameters, including sub-cooling temperature, induction time, total gas uptake, and split fraction, are calculated during the single-step formation and dissociation process. The effect of sands with varying particle sizes (160–630 µm, 1400–5000 µm), low dosage promoter (500–3000 ppm) and CO2 concentration in feed gas (20–30 mol%) on formation kinetic parameters was investigated. Enhanced formation kinetics are observed in the presence of surfactant (1000–3000 ppm) and hydrophobic amino acids (3000 ppm) at 120 bar and 1 ℃ experimental conditions. We report induction time in the range of 7–170 min and CO2 split fraction (0.60–0.90) in hydrate for 120 bar initial injection pressure. CO2 split fraction can be enhanced by reducing sand particle size or increasing the CO2 mol% in incoming feed gas at given injection pressure. This study also reports that formation kinetics in a porous medium are influenced by hydrate morphology. Hydrate morphology influences gas and water migration within sediments and controls pore space or particle surface correlation with the formation kinetics within coarse sediments. This investigation demonstrates the potential application of bio-friendly amino acids as promoters to enhance CO2 capture and storage within hydrate. Sufficient contact time at gas-liquid interface and higher CO2 separation efficiency is recorded in the presence of amino acids. The findings of this study could be useful in exploring the promoter-driven pore habitat of CO2-rich hydrates in sediments to address climate change.

scholarly journals The chemistry of low dosage clathrate hydrate inhibitors

2013 ◽  
Vol 42 (5) ◽  
pp. 1996 ◽  
Author(s):  
Andrea Perrin ◽  
Osama M. Musa ◽  
Jonathan W. Steed
Keyword(s):  
Clathrate Hydrate ◽  
Low Dosage

ChemInform Abstract: The Chemistry of Low Dosage Clathrate Hydrate Inhibitors

ChemInform ◽  
2013 ◽  
Vol 44 (24) ◽  
pp. no-no
Author(s):  
Andrea Perrin ◽  
Osama M. Musa ◽  
Jonathan W. Steed
Keyword(s):  
Clathrate Hydrate ◽  
Low Dosage

scholarly journals Determining the flux of methane into Hudson Canyon at the edge of methane clathrate hydrate stability

2016 ◽  
Vol 17 (10) ◽  
pp. 3882-3892 ◽  
Author(s):  
Alexander Weinstein ◽  
Luis Navarrete ◽  
Carolyn Ruppel ◽  
Thomas C. Weber ◽  
Mihai Leonte ◽  
...  
Keyword(s):  
Clathrate Hydrate ◽  
Methane Clathrate ◽  
Hydrate Stability
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