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Title: Process and system for producing high-density pellets from a gaseous medium

Abstract

A process and system for producing pellets of high density carbon dioxide or other gases utilize a chamber containing a plurality of cell-like freezing compartments within which ice is to be formed. A gas desired to be frozen into ice is introduced into the chamber while the internal pressure of the chamber is maintained at a level which is below the equilibrium triple pressure of the gas. The temperature of the freezing compartments is lowered to a temperature which is below the equilibrium vapor pressure temperature of the gas at the chamber pressure so that the gas condenses into ice within the compartments. The temperature of the freezing compartments is thereafter raised so that the ice is thereby released from and falls out of the compartments as pellets for collection.

Inventors:
 [1]
  1. Clinton, TN
Issue Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
OSTI Identifier:
872765
Patent Number(s):
6003332
Assignee:
Cyrogenic Applications F, Inc. (Clinton, TN)
Patent Classifications (CPCs):
C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS
F - MECHANICAL ENGINEERING F25 - REFRIGERATION OR COOLING F25D - REFRIGERATORS
DOE Contract Number:  
FG05-94ER81734
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
process; producing; high-density; pellets; gaseous; medium; density; carbon; dioxide; gases; utilize; chamber; containing; plurality; cell-like; freezing; compartments; ice; formed; gas; desired; frozen; introduced; internal; pressure; maintained; level; below; equilibrium; triple; temperature; lowered; vapor; condenses; thereafter; raised; released; falls; collection; carbon dioxide; vapor pressure; gaseous medium; chamber containing; internal pressure; chamber pressure; density carbon; producing pellets; /62/

Citation Formats

Foster, Christopher A. Process and system for producing high-density pellets from a gaseous medium. United States: N. p., 1999. Web.
Foster, Christopher A. Process and system for producing high-density pellets from a gaseous medium. United States.
Foster, Christopher A. Fri . "Process and system for producing high-density pellets from a gaseous medium". United States. https://www.osti.gov/servlets/purl/872765.
@article{osti_872765,
title = {Process and system for producing high-density pellets from a gaseous medium},
author = {Foster, Christopher A},
abstractNote = {A process and system for producing pellets of high density carbon dioxide or other gases utilize a chamber containing a plurality of cell-like freezing compartments within which ice is to be formed. A gas desired to be frozen into ice is introduced into the chamber while the internal pressure of the chamber is maintained at a level which is below the equilibrium triple pressure of the gas. The temperature of the freezing compartments is lowered to a temperature which is below the equilibrium vapor pressure temperature of the gas at the chamber pressure so that the gas condenses into ice within the compartments. The temperature of the freezing compartments is thereafter raised so that the ice is thereby released from and falls out of the compartments as pellets for collection.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {1}
}

Patent:

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