13C NMR analysis and gas uptake measurements of pure and mixed gas hydrates: Development of natural gas transport and storage method using gas hydrate

2003 ◽  
Vol 20 (6) ◽  
pp. 1085-1091 ◽  
Author(s):  
Yu-Taek Seo ◽  
Huen Lee
Keyword(s):  
Natural Gas ◽  
13C Nmr ◽  
Gas Hydrates ◽  
Gas Hydrate ◽  
Nmr Analysis ◽  
Mixed Gas ◽  
Gas Uptake ◽  
13C Nmr Analysis ◽  
Natural Gas Transport ◽  
And Storage

scholarly journals Rapid Gas Hydrate Formation—Evaluation of Three Reactor Concepts and Feasibility Study

Molecules ◽  
2021 ◽  
Vol 26 (12) ◽  
pp. 3615
Author(s):  
Florian Filarsky ◽  
Julian Wieser ◽  
Heyko Juergen Schultz
Keyword(s):  
Gas Hydrates ◽  
Gas Hydrate ◽  
Hydrate Formation ◽  
Synthetic Natural Gas ◽  
Operation Conditions ◽  
Gas Hydrate Formation ◽  
Gas Conditioning ◽  
And Storage ◽  
Economic Considerations ◽  
High Storage

Gas hydrates show great potential with regard to various technical applications, such as gas conditioning, separation and storage. Hence, there has been an increased interest in applied gas hydrate research worldwide in recent years. This paper describes the development of an energetically promising, highly attractive rapid gas hydrate production process that enables the instantaneous conditioning and storage of gases in the form of solid hydrates, as an alternative to costly established processes, such as, for example, cryogenic demethanization. In the first step of the investigations, three different reactor concepts for rapid hydrate formation were evaluated. It could be shown that coupled spraying with stirring provided the fastest hydrate formation and highest gas uptakes in the hydrate phase. In the second step, extensive experimental series were executed, using various different gas compositions on the example of synthetic natural gas mixtures containing methane, ethane and propane. Methane is eliminated from the gas phase and stored in gas hydrates. The experiments were conducted under moderate conditions (8 bar(g), 9–14 °C), using tetrahydrofuran as a thermodynamic promoter in a stoichiometric concentration of 5.56 mole%. High storage capacities, formation rates and separation efficiencies were achieved at moderate operation conditions supported by rough economic considerations, successfully showing the feasibility of this innovative concept. An adapted McCabe-Thiele diagram was created to approximately determine the necessary theoretical separation stage numbers for high purity gas separation requirements.

scholarly journals Dynamic 13C NMR analysis of oxidative metabolism in the in vivo canine myocardium.

1993 ◽  
Vol 268 (35) ◽  
pp. 26296-26301
Author(s):  
P M Robitaille ◽  
D P Rath ◽  
A M Abduljalil ◽  
J M O'Donnell ◽  
Z Jiang ◽  
...  
Keyword(s):  
13C Nmr ◽  
Oxidative Metabolism ◽  
Nmr Analysis ◽  
13C Nmr Analysis ◽  
Canine Myocardium

ChemInform Abstract: Synthesis and 1H, 13C NMR Analysis of Some Substituted 1,2,3,4-Tetrahydroisoquinolines.

ChemInform ◽  
1989 ◽  
Vol 20 (52) ◽  
Author(s):  
A. F. IBANEZ ◽  
G. B. YACULIANO ◽  
G. Y. MOLTRASIO IGLESIAS
Keyword(s):  
13C Nmr ◽  
Nmr Analysis ◽  
13C Nmr Analysis

1,6- and 1,7-naphthyridinesIII.13C-NMR analysis of some hydroxy derivatives

2002 ◽  
Vol 39 (2) ◽  
pp. 341-346 ◽  
Author(s):  
M. Mercedes Blanco ◽  
Graciela Buldain ◽  
Celia B. Schapira ◽  
Isabel Perillo
Keyword(s):  
13C Nmr ◽  
Nmr Analysis ◽  
13C Nmr Analysis

13C NMR analysis of podophyllotoxin and some of its derivatives

1980 ◽  
Vol 19 (7) ◽  
pp. 1527-1530 ◽  
Author(s):  
Sebastiáo F. Fonseca ◽  
Edmundo A. Rúveda ◽  
James D. McChesney
Keyword(s):  
13C Nmr ◽  
Nmr Analysis ◽  
13C Nmr Analysis

13C NMR analysis of the antitumor antibiotics daunorubicin and adriamycin

1976 ◽  
Vol 17 (37) ◽  
pp. 3349-3350 ◽  
Author(s):  
A. Arnone ◽  
G. Fronza ◽  
R. Mondelli ◽  
A. Vigevani
Keyword(s):  
13C Nmr ◽  
Antitumor Antibiotics ◽  
Nmr Analysis ◽  
13C Nmr Analysis

13C NMR Analysis of Soot Produced from Model Compounds and a Coal

2001 ◽  
Vol 15 (4) ◽  
pp. 961-971 ◽  
Author(s):  
Mark S. Solum ◽  
Adel F. Sarofim ◽  
Ronald J. Pugmire ◽  
Thomas H. Fletcher ◽  
Haifeng Zhang
Keyword(s):  
13C Nmr ◽  
Nmr Analysis ◽  
Model Compounds ◽  
13C Nmr Analysis
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