Gas absorbers or scrubbers are widely used in the industry for the separation and purification of gas streams, as product recovery systems and as equipment for the control of pollution. This article focuses on the application of absorption for the control of pollution in gas streams with typical polluting concentrations ranging from very low concentrations to a maximum of 10,000 ppm. Gas absorbers are most used to remove water-soluble inorganic contaminants from gas flows.
Absorption is a process in which one or more soluble components of a gas mixture are dissolved in a liquid (i.e., a solvent). The absorption process can be categorized as physical or chemical. Physical absorption occurs when the absorbed compound dissolves in the solvent; chemical absorption occurs when the absorbed compound and solvent react. Liquids commonly used as solvents include water, mineral oils, non-volatile hydrocarbon oils, and aqueous solutions.
Expanding Capacity and Environmental Concerns in the Biofuel Industry
Tank storage and transshipment companies handle the transportation, storage, and disposal of oil and fat by-products through various means of transport. In response to the increasing demand for oil and fat by-products for biofuel production, particularly biodiesel, substantial investments are being made to expand the existing capacity. However, despite the expanding market, the extent of odor emissions from these by-products remains uncertain. Therefore, it is imperative to conduct investigations to determine whether these emissions comply with the established regulations and odor model data.
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