In the petrochemical production process, many physical and chemical processes and mass transfer and heat transfer unit operations are required. Some process control conditions are extremely harsh, such as high temperature, high pressure, low temperature, vacuum, etc. For example, the temperature of steam cracking is as high as 1100°C, while the temperature of some cryogenic separation processes is as low as -100°C. Our dynamic temperature control systems allows for quick heat-up times, constant temperature control, and temperature uniformity.