Process Exhaust Gas Cleaning for Specialty & Fine Chemicals

Fine chemicals are pure chemical substances that are produced in limited quantities in continuous and batch processing plants. In many cases exhaust gases have to be extracted from agitator tanks and other apparatuses, so that they can be scrubbed subsequently.

GEA jet scrubbing plants are perfectly suited for this application. They are flexible with respect to design, materials and operation. They are particularly suited for use with explosive gas mixtures and heavily dust-laden or highly corrosive gases. We can design plants with capacity ranging from 0.05 m³/h to approx. 100,000 m³/h gas throughput, with exhaust gas temperatures of up to 1,300 °C. Our scrubbing technology can alternatively be installed into existing plants. The presence of either chlorine or specific solvents, such as toluene, methylene chloride or benzene, in the exhaust gas, will require the plant to be constructed using specialized materials.

Pure water, diluted acids or caustic solutions are used as the scrubbing medium. This means that the scrubbers are very well suited to the absorption of different inorganic and organic substances, for example halogens (F2 , Cl2 , Br2, I2 ), hydrogen halides (HF, HCl, HBr, HI), sulfur-containing compounds (SO2, SO3, H2S), ammonia (NH3), low molecular alcohols, organic acids and amines.

Additional packing or trays are installed into the scrubber’s separator as counter-flow columns for fine cleaning. Depending upon the particular application, jet scrubbers can also be designed as a multiple-stage plant, or combined with Venturi scrubbers or other aerosol separators.