ACHEMA - International Exhibition-Congress on Chemical Engineering, Environmental Protection and Biotechnology is held every 3 years (since 1920)in Frankfurt am Main/Germany. Over 4,000 exhibitors and 180,000 visitors from all over the world use this major international event for equipment suppliers of the chemical industry and all branches of the processing industry to exchange ideas and experience and to forge new contacts. The DECHEMA Society for Chemical Engineering and Biotechnology is organizer of this outstanding event.