Apparatus for concentrating and diluting specific gas and method for concentrating and diluting specific gas

An apparatus for concentrating and diluting a specific gas comprising:

• a specific gas concentrating system including:
• a chamber having filled therein a particle material for condensation and vaporization capable of selectively condensing the specific gas or having equipped therein a gas transmission member selectively transmitting other gases than the specific gas;
• a freezing machine to cool the specific gas fed into the chamber to a predetermined cool temperature;
• and a gas feeding and retrieving system having a feeding port feeding a gas containing plural gas species, a diluted gas retrieving port configured to retrieve a diluted gas containing a diluted amount of the specific gas, and a concentrated gas retrieving port configured to retrieve a concentrated gas containing a concentrated amount of the specific gas;
• wherein the freezing machine is controlled to cool a gas fed to the chamber to selectively condense the specific gas on a surface of the particle material or the gas transmission member or by selectively transmitting the other gases than the specific gas by the gas transmission member, wherein a temperature distribution is provided in a vertical direction of the chamber by a constitution of increasing upward a thermal insulation capability of a thermal insulating function provided on a periphery of the chamber.

An apparatus for concentrating and diluting a specific gas comprising:

• a specific gas concentrating system including:
• a chamber having filled therein a particle material for condensation and vaporization capable of selectively condensing the specific gas or having equipped therein a gas transmission member selectively transmitting other gases than the specific gas;
• a freezing machine to cool the specific gas fed into the chamber to a predetermined cool temperature;
• and a gas feeding and retrieving system having a feeding port feeding a gas containing plural gas species, a diluted gas retrieving port configured to retrieve a diluted gas containing a diluted amount of the specific gas, and a concentrated gas retrieving port configured to retrieve a concentrated gas containing a concentrated amount of the specific gas;
• wherein the freezing machine is controlled to cool a gas fed to the chamber to selectively condense the specific gas on a surface of the particle material or the gas transmission member or by selectively transmitting the other gases than the specific gas by the gas transmission member, wherein the particle material for condensation and vaporization filled in the chamber is made to be a spherical shape with a part of the side surface thereof being flattened, and is filled in layers to make the flattened parts of the spherical particle material in contact with each other.