Sensor-based monitoring device for preventing explosion accident of regenerative thermal oxidizer (RTO)

A monitoring device, comprising:

• a sensor configured to sense inflow gas information including a component and a concentration of an inflow gas introduced into a regenerative thermal oxidizer (RTO);
• a memory configured to store instructions;
• and
• a processor configured to be communicatively coupled to the sensor and the memory, and the processor by executing the instructions in the memory, determines residual gas information including a component and a concentration of a residual gas in the RTO by using the inflow gas information, and updates an inflow amount per unit time of the inflow gas according to a risk level of the RTO determined by the processor based on the residual gas information.