skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Complex admixtures of clathrate hydrates in a water desalination method

Abstract

Disclosed is a method that achieves water desalination by utilizing and optimizing clathrate hydrate phenomena. Clathrate hydrates are crystalline compounds of gas and water that desalinate water by excluding salt molecules during crystallization. Contacting a hydrate forming gaseous species with water will spontaneously form hydrates at specific temperatures and pressures through the extraction of water molecules from the bulk phase followed by crystallite nucleation. Subsequent dissociation of pure hydrates yields fresh water and, if operated correctly, allows the hydrate-forming gas to be efficiently recycled into the process stream.

Inventors:
 [1];  [2];  [3];  [4]
  1. San Francisco, CA
  2. Livermore, CA
  3. Berkeley, CA
  4. Riverbank, CA
Issue Date:
Research Org.:
Sandia National Lab. (SNL-CA), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
968966
Patent Number(s):
7560028
Application Number:
11/489,306
Assignee:
Sandia Corporation (Livermore, CA)
Patent Classifications (CPCs):
C - CHEMISTRY C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE C02F - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02A - TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Simmons, Blake A, Bradshaw, Robert W, Dedrick, Daniel E, and Anderson, David W. Complex admixtures of clathrate hydrates in a water desalination method. United States: N. p., 2009. Web.
Simmons, Blake A, Bradshaw, Robert W, Dedrick, Daniel E, & Anderson, David W. Complex admixtures of clathrate hydrates in a water desalination method. United States.
Simmons, Blake A, Bradshaw, Robert W, Dedrick, Daniel E, and Anderson, David W. Tue . "Complex admixtures of clathrate hydrates in a water desalination method". United States. https://www.osti.gov/servlets/purl/968966.
@article{osti_968966,
title = {Complex admixtures of clathrate hydrates in a water desalination method},
author = {Simmons, Blake A and Bradshaw, Robert W and Dedrick, Daniel E and Anderson, David W},
abstractNote = {Disclosed is a method that achieves water desalination by utilizing and optimizing clathrate hydrate phenomena. Clathrate hydrates are crystalline compounds of gas and water that desalinate water by excluding salt molecules during crystallization. Contacting a hydrate forming gaseous species with water will spontaneously form hydrates at specific temperatures and pressures through the extraction of water molecules from the bulk phase followed by crystallite nucleation. Subsequent dissociation of pure hydrates yields fresh water and, if operated correctly, allows the hydrate-forming gas to be efficiently recycled into the process stream.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2009},
month = {7}
}

Patent:

Save / Share:

Works referenced in this record:

The ability of small molecules to form clathrate hydrates of structure II
journal, September 1984