Comment on “Jump in the Rotational Mobility of Benzene Induced by the Clathrate Hydrate Formation” †

1996 ◽  
Vol 100 (1) ◽  
pp. 439-440 ◽  
Author(s):  
John A. Ripmeester ◽  
L. Ding
Keyword(s):  
Hydrate Formation ◽  
Clathrate Hydrate ◽  
Rotational Mobility

Jump in the Rotational Mobility of Benzene Induced by the Clathrate Hydrate Formation

1995 ◽  
Vol 99 (5) ◽  
pp. 1377-1379 ◽  
Author(s):  
Masaru Nakahara ◽  
Chihiro Wakai ◽  
Nobuyuki Matubayasi
Keyword(s):  
Hydrate Formation ◽  
Clathrate Hydrate ◽  
Rotational Mobility

Clathrate Hydrate Formation from Cyclopentane-in-Water Emulsions

2008 ◽  
Vol 47 (22) ◽  
pp. 8933-8939 ◽  
Author(s):  
Masahiro Nakajima ◽  
Ryo Ohmura ◽  
Yasuhiko H. Mori
Keyword(s):  
Hydrate Formation ◽  
Clathrate Hydrate

Ammonia found as a catalyst in rapid and efficient all-vapor clathrate hydrate formation

Scilight ◽  
2018 ◽  
Vol 2018 (24) ◽  
pp. 240007
Author(s):  
Drew DeJarnette
Keyword(s):  
Hydrate Formation ◽  
Clathrate Hydrate

Clathrate hydrate formation of CO2/CH4 mixture at room temperature: Application to direct transport of CO2-containing natural gas

2019 ◽  
Vol 249 ◽  
pp. 190-203 ◽  
Author(s):  
Junjie Zheng ◽  
Niranjan Kumar Loganathan ◽  
Jianzhong Zhao ◽  
Praveen Linga
Keyword(s):  
Natural Gas ◽  
Room Temperature ◽  
Hydrate Formation ◽  
Clathrate Hydrate ◽  
Temperature Application

Clathrate Hydrates for Production of Potable Water

2006 ◽  
Vol 930 ◽  
Author(s):  
Robert W. Bradshaw ◽  
Blake A. Simmons ◽  
Eric H Majzoub ◽  
W. Miles Clift ◽  
Daniel E. Dedrick
Keyword(s):  
Structural Characterization ◽  
Potable Water ◽  
Hydrate Formation ◽  
The United States ◽  
Clathrate Hydrate ◽  
Department Of Energy ◽  
Clathrate Hydrates ◽  
Crystalline Inclusion ◽  
United States Department ◽  
Wide Range

ABSTRACTClathrate hydrates are crystalline inclusion compounds of water and a guest molecule (e.g., methane) that form at temperatures below ambient but above the freezing point of water. There are three known crystalline structures of hydrates (structure I, II, and H) in which cavities within the hydrogen bonded water molecule lattice trap the hydrate-forming species. The clathrate structure excludes dissolved solutes, such as sodium chloride, from the aqueous phase and thereby offers a possible means to produce potable water from seawater or brackish water. The concept of using clathrate hydrates for desalination is not new. However, before clathrate hydrate desalination becomes a viable technology, fundamental issues of controlled hydrate formation, hydrate size and morphology, agglomeration, amount of entrapped salt, and the efficient recovery of hydrates must be understood. This paper will report structural characterization of hydrates formed with several guest molecules over a wide range of conditions in an attempt to further the physicochemical insight needed to address these issues.Clathrate hydrate formation experiments were performed using a variety of host molecules, including R141b, a commercial refrigerant, C2FCl2H3. Hydrates of R141b were formed at temperatures from 2°C to 6°C and atmospheric pressure from deionized water and 2% - 7% NaCl solutions. Samples of the hydrates were characterized by cold-stage x-ray diffraction and Raman spectroscopy and determined to be structure II. Additional experiments were conducted with a gaseous hydrate former, ethylene, which readily formed hydrates with deionized or saline water at 2°C and several atmospheres of pressure. Experiments with several other hydrate forming molecules were conducted and the results obtained from their structural characterization will be reported. We will also present proof-of-concept experiments demonstrating a novel technique of desalination using these hydrate formers.Sandia National Laboratories is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin company, for the United States Department of Energy under contract DE-AC04-94AL85000.

Differential Scanning Calorimetry Studies of Clathrate Hydrate Formation

2004 ◽  
Vol 108 (43) ◽  
pp. 16717-16722 ◽  
Author(s):  
Yanfeng Zhang ◽  
Pablo G. Debenedetti ◽  
Robert K. Prud'homm ◽  
Brian A. Pethica
Keyword(s):  
Differential Scanning Calorimetry ◽  
Hydrate Formation ◽  
Clathrate Hydrate ◽  
Scanning Calorimetry
Sign in / Sign up

Export Citation Format

Share Document