Since the crude argon column is closely related to the main column, the normal operation conditions of the crude argon column can only be adjusted under the premise that the working conditions of the main column are stable under the design conditions. The main factors to establish the normal operation conditions of crude argon column in air separation unit are the change of argon fraction composition and the heat load of crude argon condenser. Therefore, the purpose of adjusting the normal operation conditions of argon column is to establish the best argon fraction composition and condenser heat load, so as to ensure the purity and output of crude argon.
