scope:

Scope Part 1 of this guideline series deals with air pollution control technologies for the removal of gaseous air pollutants and aerosols like sulphur oxides, nitrogen oxides and halides from flue gases generated by combustion processes. Besides information on the design, construction and operation of the air pollution control equipment, the guideline presents practical examples to give an idea of the overall application spectrum. Some of the flue gas cleaning technologies presented are also applicable to other industrial processes, if adapted accordingly. It should be noted that the process selection made does not constitute any weighting. Because of the interdependencies between the numerous system-specific and flue gas-specific factors, the data presented in the charts and tables relate exclusively to the specific application. This is also the reason why a comparative technical and economic evaluation of the individual flue gas cleaning processes has been dispensed with.

The guideline also provides an overview of the theoretical fundamentals underlying the respective removal mechanisms. For more detailed information, reference is made to the respective literature.

The removal of particulate matter from waste gases is covered by the following VDI guidelines:

• VDI 3676 Inertial Separators
• VDI 3677 Part 1 Filtering Separators - Surface Filters
• VDI 3677 Part 2 Filtering Separators - Deep-Bed Filters
• VDI 3678 Part 1 Electrostatic Precipitators - Process and Waste Gas Cleaning
• VDI 3678 Part 2 Electrostatic Precipitators - Process and Room Air Cleaning
• VDI 3679 Part 1 Wet Separators for Particle Collection

Part 2 of guideline VDI 3972 covers the control of further air pollutants generated by combustion processes and/or their removal from the combustion flue gases.

Reference is made to the acts, regulations, administrative orders and other rules applicable to the construction and operation of the respective equipment [1 to 12].