Hydrogen fluoride gas removal device and method for removing hydrogen fluoride gas

A hydrogen fluoride gas removal device which removes hydrogen fluoride gas from a mixed gas containing the hydrogen fluoride gas and another type of gas, the hydrogen fluoride gas removal device comprising:

• a hydrogen fluoride gas removal treatment machine that is capable of accommodating a removal agent for removing the hydrogen fluoride gas from the mixed gas, and that is configured to perform a treatment of removing the hydrogen fluoride gas from the mixed gas by bringing the mixed gas into contact with the removal agent, the hydrogen fluoride gas removal treatment machine having
• a gas introduction port into which the mixed gas is introduced, and
• a gas discharge port from which the mixed gas subjected to the treatment of removing the hydrogen fluoride gas is discharged;
• a removal agent supply machine that is configured to supply the removal agent to the hydrogen fluoride gas removal treatment machine;
• a removal agent moving machine that is configured to move the removal agent, which is accommodated in the hydrogen fluoride gas removal treatment machine, within the hydrogen fluoride gas removal treatment machine;
• and
• a removal agent discharge machine that is configured to discharge the used removal agent having been used in the treatment of removing the hydrogen fluoride gas from the mixed gas in the hydrogen fluoride gas removal treatment machine, from the hydrogen fluoride gas removal treatment machine.