White Plume Abatement

Taiji Environmental Protection combines air-cooling technology with existing wet flue gas desulfurization systems to specifically address the "white plume" issue at the stack outlet after wet desulfurization. It fundamentally eliminates visual pollution and secondary impacts such as rainout around the stack, helping enterprises achieve both cleaner emissions and an improved visual profile. The technology is widely applicable to retrofitting and upgrading existing wet desulfurization systems as well as to new projects.

I. Core Technical Features

At its core is precise control of flue gas "temperature" and "humidity" to fundamentally eliminate the conditions for water vapor condensation. This is implemented in two steps:

• Step 1: Cooling and condensing for deep dehumidification. Using ambient air as a cold source, the wet flue gas after desulfurization undergoes non-contact heat exchange with low-temperature ambient air through a corrosion-resistant, high-efficiency heat exchanger, cooling the hot flue gas by 3–5°C to achieve deep dehumidification.

• Step 2: Intelligent mixing and reheating for discharge. The cooled and dehumidified low-temperature flue gas is precisely mixed in the stack with the dry heated air from Step 1, avoiding the supersaturation risk of direct flue gas discharge and achieving a clear plume.

II. Technical Advantages and Value

• High-efficiency plume abatement: adaptable to most climate conditions in China, with excellent plume abatement performance and effectively improved visual appearance.

• Energy saving and environmental protection: using ambient air as a cold source and mixing medium, no additional refrigeration equipment is needed, energy consumption is extremely low, and operating costs are low.

• Resource utilization: recovering waste heat from flue gas to heat air, achieving internal energy recycling and improving resource utilization.

• Easy installation: compact system design, minimal retrofit work, adaptable to existing wet desulfurization systems and new projects.

Core Technical Features

Typical Cases