In 1969, he was employed by Lurgi GmbH, Frankfurt am Main, Germany, where he held various positions for 40 years, including Head of Lurgi’s Coal and Energy Technologies Division and Managing Director of Lurgi Energy and Environmental Technologies GmbH as well as Chief Technology Officer of the Lurgi Group as Senior Vice President.
Plass also served on the Executive Board of several international Lurgi subsidiaries and joint ventures. He retired from Lurgi in 2009. Plass was also a member of the Executive Board of DECHEMA and worked in several organizations of VDMA (German Engineering Federation).
Currently, Plass is a member of the advisory board of the Dechema Research Institute, advises the PtM Power-to-Methanol project funded by the BMWi and is active on the board of the “Global Energy Solutions” association founded in September in Ulm.
Ludolf Plass has held a number of positions, including senior advisor to the management of Air Liquide Global E&C Solutions c/o Lurgi GmbH, Frankfurt, advisor to the Management Board of Südchemie AG, Munich,Chairman of the Advisory Board of Schaefer Kalk GmbH & Co KG, Diez, Chairman of the Advisory Board of Techno-Physik GmbH, Essen, member of the Industrial Council of Finatem Beteiligungs Gesellschaft Frankfurt, Chairman of the Advisory Board of Ecoloop GmbH, Duisburg/Elbingerode/Harz, and Chairman of the Supervisory Board Christopherus Heim, Welzheim, all in Germany.