Erik Dahlquist is today Professor in Energy Technology at Malardalen University (MDU) in Västerås, Sweden. His focus is on biomass utilization and process efficiency improvements. He started working at ASEA Research 1975 as engineer in analytical chemistry related to nuclear power, trouble shooting of electrical equipment and manufacturing processes. In 1982 he started with energy technology towards the pulp and paper industry and participated in the development of year around fuel production from peat. In 1984 ASEA started a company ASEA Oil and gas with focus on off-shore production systems. One area was waste water treatment and separation of oil and water. He then became technical project manager for development of a Cross Flow Membrane filter. This led to the formation of ABB Membrane filtration. The filter is now a commercial product at Finnish Metso Oy under the name Optifilter. As part of this development work he started as industrial PhD student at KTH and had dissertations in 1991. 1989 he became project leader for ABBs Black Liquor Gasification project, which resulted in a number of patents. 1992–1995 he was department manager for Combustion and Process Industry Technology at ABB Corporate Research. He was then also member of the board of directors for ABB Corporate Research in Sweden. From January 1996 to 2002 he was General Manager for the Product Responsible Unit “Pulp Applications” worldwide within ABB Automation Systems. The product area was Advanced Control, Diagnostics, Optimization, Process Simulation and Special Sensors towards pulp and paper industry. During 1997 – 2000 he was part time adjunct professor at KTH and later 2000 to 2002 part time professor at MDU. He has been responsible for research in Environmental, Energy and Resource Optimization since 2000 at MDU. During 2001-2007 he was first deputy dean and later dean for the faculty of Natural Science and Technology. He has been a member of the board of Swedish Thermal Engineering Research Institute division for Process Control systems since 1999. He received ABB Corporate Research Award 1989. He is member of the board of SIMS (Scandinavian Simulation and Modeling Society) since 2003 and deputy member of the board of Eurosim since 2009. He is member of editorial board for the Journal of Applied Energy, Elsevier since 2007. He is also a member of the Swedish Royal Academy of Engineering (IVA) since 2011. He has 21 (different) patents and approximately 170 scientific publications in refereed Journals or conference proceedings with referee procedure. He has published seven books as editor or author.