Improved Experimental Determinations of Phase Equilibria and Structural Transitions of Mixed Gas Hydrates under Isothermal Conditions

2013 ◽  
Vol 27 (9) ◽  
pp. 5144-5152 ◽  
Author(s):  
Minchul Kwon ◽  
Yeobum Youn ◽  
Yongwon Seo ◽  
Jong-Won Lee ◽  
Jaehyoung Lee ◽  
...  
Keyword(s):  
Phase Equilibria ◽  
Gas Hydrates ◽  
Structural Transitions ◽  
Mixed Gas ◽  
Isothermal Conditions

Phase Equilibria of Mixed Gas Hydrates of Oxygen + Tetrahydrofuran, Nitrogen + Tetrahydrofuran, and Air + Tetrahydrofuran

2011 ◽  
Vol 56 (11) ◽  
pp. 4152-4156 ◽  
Author(s):  
Hongjun Yang ◽  
Shuanshi Fan ◽  
Xuemei Lang ◽  
Yanhong Wang
Keyword(s):  
Phase Equilibria ◽  
Gas Hydrates ◽  
Mixed Gas

Temperature-Dependent Structural Transitions in Methane–Ethane Mixed Gas Hydrates

2014 ◽  
Vol 118 (49) ◽  
pp. 28906-28913 ◽  
Author(s):  
Minchul Kwon ◽  
Jong-Won Lee ◽  
Huen Lee
Keyword(s):  
Gas Hydrates ◽  
Structural Transitions ◽  
Mixed Gas ◽  
Temperature Dependent

Mixed gas sources induced co-existence of sI and sII gas hydrates in the Qiongdongnan Basin, South China Sea

2021 ◽  
Vol 128 ◽  
pp. 105024
Author(s):  
Jiangong Wei ◽  
Tingting Wu ◽  
Linqi Zhu ◽  
Yunxin Fang ◽  
Jinqiang Liang ◽  
...  
Keyword(s):  
South China Sea ◽  
South China ◽  
Gas Hydrates ◽  
Qiongdongnan Basin ◽  
Mixed Gas ◽  
China Sea

PROSPECTS FOR OBTAINING GAS MOTOR FUEL FROM BIOGAS OF ANAEROBIC DIGESTION OF AGRICULTURAL WASTE

2021 ◽  
Vol 3 (144) ◽  
pp. 22-31
Author(s):  
Viktor S. Grigor’yev ◽  
◽  
Il’ya V. Romanov
Keyword(s):  
Anaerobic Digestion ◽  
Gas Hydrates ◽  
Process Model ◽  
Organic Waste ◽  
Agricultural Waste ◽  
Motor Fuel ◽  
Hydrate Formation ◽  
Research Purpose ◽  
Industrial Complex ◽  
Mixed Gas

The ability of gas hydrates to concentrate gas into a solid chelate structure and the properties of self-preservation of gas hydrates at negative temperatures allows us to consider the possibility of developing a method for the utilization of biogas, environmentally safe storage and transportation of biomethane. (Research purpose) The research purpose is in substantiation the technological possibilities of obtaining synthetic mixed gas hydrates of biogas components, their storage and transportation based on the analysis of the existing regularities of the formation of gas hydrates in time, temperature and external pressure. (Materials and methods) The article presents the accumulated results of studies of the process of obtaining artificial hydrates of natural gas and methane- containing gas mixtures at various initial static pressures and temperatures. The object of research to substantiate the parameters of artificial creation of gas hydrates is biogas obtained during anaerobic thermophilic fermentation of organic waste at an existing experimental biogas plant. Mixed feed SK-8 with a humidity of 90-92 percent was used as an organic substrate of constant composition. The composition of biogas was studied using the Optima-7 Biogas gas analyzer. (Results and discussion) The article presents a process model and a technical appearance of an installation for producing gas motor fuel from the biogas of anaerobic digestion of organic waste of the agro-industrial complex. The hydrate formation time depends on the increase in the interfacial surface and the movement of gas bubbles relative to the liquid, which can be regulated by acting on the hydrate formation zone (shock wave, electromagnetic, mechanical, chemical, temperature). (Conclusions) The research results can be used in modeling processes in two-phase media during the formation of gas hydrates and the creation of installations for their production.

Formation of Ice, Tetrahydrofuran Hydrate, and Methane/Propane Mixed Gas Hydrates in Strong Monovalent Salt Solutions

2014 ◽  
Vol 28 (11) ◽  
pp. 6877-6888 ◽  
Author(s):  
Barbara Sowa ◽  
Xue Hua Zhang ◽  
Patrick G. Hartley ◽  
Dave E. Dunstan ◽  
Karen A. Kozielski ◽  
...  
Keyword(s):  
Gas Hydrates ◽  
Salt Solutions ◽  
Mixed Gas ◽  
Monovalent Salt

Phase equilibria for H2+CO2+H2O system containing gas hydrates

2005 ◽  
Vol 233 (2) ◽  
pp. 190-193 ◽  
Author(s):  
Takeshi Sugahara ◽  
Shu Murayama ◽  
Shunsuke Hashimoto ◽  
Kazunari Ohgaki
Keyword(s):  
Phase Equilibria ◽  
Gas Hydrates

Gas Hydrates Phase Equilibria and Formation from High Concentration NaCl Brines up to 200 MPa

2017 ◽  
Vol 62 (6) ◽  
pp. 1910-1918 ◽  
Author(s):  
Yue Hu ◽  
Taras Y. Makogon ◽  
Prasad Karanjkar ◽  
Kun-Hong Lee ◽  
Bo Ram Lee ◽  
...  
Keyword(s):  
Phase Equilibria ◽  
Gas Hydrates ◽  
High Concentration

Spectroscopic analysis of carbon dioxide and nitrogen mixed gas hydrates in silica gel for CO2 separation

2006 ◽  
Vol 115 (1-4) ◽  
pp. 279-282 ◽  
Author(s):  
Jeasung Park ◽  
Yu-Taek Seo ◽  
Jong-won Lee ◽  
Huen Lee
Keyword(s):  
Carbon Dioxide ◽  
Silica Gel ◽  
Gas Hydrates ◽  
Spectroscopic Analysis ◽  
Co2 Separation ◽  
Mixed Gas
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