The company DGE GmbH was founded in October 1991. In the period from 1991 to 2018, more than 300 different plants for cleaning exhaust gases in industry were planned and built. The construction of these plants is not limited to Germany, but includes Europe and abroad. DGE GmbH owns a test plant to produce biogas.
More than 34 patents have been applied for and granted by DGE GmbH so far. These concern processes for waste gas and waste water purification as well as for biogas upgrading. In the field of biogas upgrading there is experience with the processes amine scrubbing, physical scrubbing, drying and desulfurization. These plants have been realized several times.