During the processing of crude oil and natural gas, the product undergoes a variety of processing steps. The resulting product and waste streams must be reprocessed. UNICARB® activated carbons can help here. For example, natural gas can be desulphurized with a suitable impregnated activated carbon and freed from mercury with another type. Other applications include the recovery of vapors in tank farms, the cleaning of process gases or the removal of organic pollutants from exhaust air. Activated carbon is also suitable as a carrier material for catalysts, such as in the MEROX process.