scholarly journals In situ monitoring of additives during CO2 gas hydrate formation

2016 ◽  
Vol 8 (30) ◽  
pp. 5897-5905 ◽  
Author(s):  
M. Schwenk ◽  
A. Katzir ◽  
B. Mizaikoff
Keyword(s):  
Gas Hydrate ◽  
Hydrate Formation ◽  
Evanescent Field ◽  
In Situ Monitoring ◽  
Mid Infrared ◽  
Co2 Gas ◽  
Field Spectroscopy ◽  
Gas Hydrate Formation

The combination of pressure/temperature traces with in situ mid-infrared fiberoptic evanescent field spectroscopy as advanced sensing concept for CO2 gas hydrate analysis.

scholarly journals Mid-infrared fiber-optic evanescent field spectroscopy for in situ monitoring of tetrahydrofuran hydrate formation and dissociation

The Analyst ◽  
2017 ◽  
Vol 142 (5) ◽  
pp. 740-744 ◽  
Author(s):  
M. Schwenk ◽  
A. Katzir ◽  
B. Mizaikoff
Keyword(s):  
Fiber Optic ◽  
Hydrate Formation ◽  
Evanescent Field ◽  
In Situ Monitoring ◽  
Clathrate Hydrates ◽  
Mid Infrared ◽  
Field Spectroscopy ◽  
Monitoring Technique

Mid-infrared fiber-optic evanescent field spectroscopy (MIR-FEFS) has been applied as an in situ monitoring technique for THF containing clathrate hydrates.

ChemInform Abstract: The Influence of SO2 and NO2 Impurities on CO2 Gas Hydrate Formation and Stability.

ChemInform ◽  
2011 ◽  
Vol 42 (28) ◽  
pp. no-no
Author(s):  
Bettina Beeskow-Strauch ◽  
Judith M. Schicks ◽  
Erik Spangenberg ◽  
Joerg Erzinger
Keyword(s):  
Gas Hydrate ◽  
Hydrate Formation ◽  
Co2 Gas ◽  
Gas Hydrate Formation

scholarly journals Unexpected inhibition of CO2 gas hydrate formation in dilute TBAB solutions and the critical role of interfacial water structure

Fuel ◽  
2016 ◽  
Vol 185 ◽  
pp. 517-523 ◽  
Author(s):  
Ngoc N. Nguyen ◽  
Anh V. Nguyen ◽  
Khoi T. Nguyen ◽  
Llew Rintoul ◽  
Liem X. Dang
Keyword(s):  
Gas Hydrate ◽  
Critical Role ◽  
Hydrate Formation ◽  
Water Structure ◽  
Interfacial Water ◽  
Co2 Gas ◽  
Gas Hydrate Formation ◽  
Interfacial Water Structure

scholarly journals Quantifying in-situ gas hydrates at active seep sites in the eastern Black Sea using pressure coring technique

2011 ◽  
Vol 8 (3) ◽  
pp. 4529-4558 ◽  
Author(s):  
K. Heeschen ◽  
M. Haeckel ◽  
I. Klaucke ◽  
M. K. Ivanov ◽  
G. Bohrmann
Keyword(s):  
Black Sea ◽  
Gas Hydrate ◽  
Pore Volume ◽  
Sediment Cores ◽  
Stability Boundary ◽  
Hydrate Formation ◽  
Gas Hydrate Formation ◽  
Hydrate Saturation ◽  
Gas Volume

Abstract. In the eastern Black Sea, we determined methane (CH4) concentrations, gas hydrate volumes and their vertical distribution from combined gas and chloride (Cl−) measurements within pressurized sediment cores. The total gas volume collected from the cores corresponds to concentrations of 1.2–1.4 mol of methane per kg porewater at in-situ pressure, which is equivalent to a gas hydrate saturation of 15–18% of pore volume and amongst the highest values detected in shallow seep sediments. At the central seep site, a high-resolution Cl− profile resolves the upper gas hydrate stability boundary and a continuous layer of hydrates in a sediment column of 120 cm thickness. Including this information, a more precise gas hydrate saturation of 22–24% pore volume can be calculated. This is higher in comparison to a saturation calculated from the Cl− profile alone, resulting in 14.4%. The likely explanation is an active gas hydrate formation from CH4 gas ebullition. The hydrocarbons at Batumi Seep are of shallow biogenic origin (CH4 > 99.6%), at Pechori Mound they originate from deeper thermocatalytic processes as indicated by the lower ratios of C1 to C2–C3 and the presence of C5.

Research on CO2 Gas Separation utilizing Gas Hydrate Formation

2004 ◽  
Vol 2004 (0) ◽  
pp. 183-184
Author(s):  
Hajime Endou ◽  
Akiko Hirano ◽  
Masayuki Seko ◽  
Masahiro Ota
Keyword(s):  
Gas Separation ◽  
Gas Hydrate ◽  
Hydrate Formation ◽  
Co2 Gas ◽  
Gas Hydrate Formation

In situ monitoring of pH level with fiber optic evanescent field spectroscopy

2004 ◽  
Vol 37 (8) ◽  
pp. 611-616 ◽  
Author(s):  
Masoud Ghandehari ◽  
Cristian S Vimer
Keyword(s):  
Fiber Optic ◽  
Evanescent Field ◽  
In Situ Monitoring ◽  
Field Spectroscopy ◽  
Ph Level

Gas Hydrate Formation in the Deep Sea:  In Situ Experiments with Controlled Release of Methane, Natural Gas, and Carbon Dioxide

1998 ◽  
Vol 12 (1) ◽  
pp. 183-188 ◽  
Author(s):  
Peter G. Brewer ◽  
Franklin M. Orr, ◽  
Gernot Friederich ◽  
Keith A. Kvenvolden ◽  
Daniel L. Orange
Keyword(s):  
Carbon Dioxide ◽  
Controlled Release ◽  
Natural Gas ◽  
Gas Hydrate ◽  
Deep Sea ◽  
Hydrate Formation ◽  
Gas Hydrate Formation ◽  
In Situ Experiments
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