The REGATEC 2024 speakers will be personally invited in order to create a well composed conference centred around the conference topics. If you feel that you have an interesting contribution related to bio-, electro- and thermochemical conversion of biomass/waste to methane don’t hesitate to contact us. If there is no available speaker slot in the upcoming REGATEC, there might be one in the next edition.

Please note that for commercial players to be considered as speakers we expect an active support of the conference, i.e., as exhibitors and/or sponsors.

The REGATEC 2024 speaker line up will be posted here!

Renewable methane – status, policy and market insights
Biomethane in Sweden
Maria Malmkvist, Swedish Gas Association
Maria MalmkvistMaria Malmkvist has a MSc degree from the Institute of Technology at Linköping University. In February 2016 she became the CEO of the Swedish Gas Association. She has experience from consultancy work at WSP and she was the head of unit Energy efficiency and the deputy department head at the Swedish Energy Agency.
Biomethane in Europe
Mieke Decorte, European Biogas Association
Mieke DecorteMieke Decorte is the Technical and Project Manager at the European Biogas Association since 2021 while she joined the association in 2018. Mieke manages and coordinates the technical and project work within the EBA and supports EBA’s policy and communication work with technical knowledge and data. Her main responsibilities include coordinating EBA’s involvement in Horizon Europe and other programs and overseeing the EBA’s technical publications such as the EBA Statistical Report and the European biomethane map. Mieke has earned technical and market knowledge on the biogas sector with her work at the Flanders biogas association. She graduated in 2016 as a bioengineer at UGhent with a specialization in environmental technology.
Perspectives on biomethane trade in Europe
Zoltan Elek, Landwärme GmbH
Zoltan ElekZoltan Elek graduated from the Technical University of Munich after completing a degree in Electrical Engineering, where he majored in Energy Technology. He is also a graduate of the Center for Digital Technology and Management at Ludwig-Maximilians-Universität Munich, participated in an MBA program, and completed an executive program at Harvard Business School. After working for notable names such as E.ON Engineering, Stadtwerke Munich, and McKinsey & Company, Mr. Elek founded Landwärme in 2007 and is the CEO of the Munich-based renewable energy company Landwärme. In all, Mr. Elek offers a wealth of experience in, and well-founded knowledge of, the biomethane industry and markets in Germany and Europe.
Methanation and syngas fermentation – Part A
Development of in situ and ex situ biomethanation processes: The BIOUP project
Raquel Iglesias, CIEMAT
Raque IglesiasAgricultural Engineer (2001) from the Polytechnic University of Madrid (UPM), in 2003 she obtained a scholarship to complete the Master’s Degree in Environmental Management and Administration from the Biodiversity Foundation of MAPAMA in collaboration with the National University of Distance Education (UNED) and in 2016 she obtained the title of Doctor in the specialty of wastewater treatment and regeneration for agricultural use from the UPM. During the 2017-2018 academic year, she was part of the Fulbright program as a Visiting Research Scientist in the Department of Economics and Water Resources at the University of California at Davis, completing her research activity with internships at the California Department of Water Resources (DWR) in Sacramento. Since March 2019, she has been Head of the Advanced Biofuels and Bioproducts Unit at CIEMAT.
High-capacity multi-feedstock catalytic methanation – experimental validation, up-scale and future projects
Katrin Salbrechter, Montanuniversität Leoben
Katrin SalbrechterKatrin Salbrechter is a PhD candidate at the Chair of Process Technology and Industrial Environmental Protection at Montanuniversität Leoben (Austria). The topic of her doctoral thesis addresses the Power-to-Gas technology and its application to demonstration scale. In addition, she is doing research on thermodynamic basics of methanation processes and a reactor conceptualization for industrial applications.
BioFARM: shorten development time and reduce costs for biomethanation projects
Robert Bauer, MicroPyros BioEnerTec GmbH
Robert BauerRobert Bauer studied at the Deggendorf Institute of Technology: Bachelor’s degree in Resource and Environmental Management (2016), and Master’s degree in Construction and Environment (2018)
Recently he graduated as a PhD in 2023 from the University of Luxembourg in cooperation with the Deggendorf Institute of Technology on the topic of Utilizing Power-to-Methane in energy communities with energy cell simulation.
Since 2022 he is employed at MicroPyros as a project engineer to apply the energy cell simulation and supervise the execution of the BioFarm research facility.
Biomethanation in the Electrolyzer
Ivan Ilic, Electrochaea GmbH
Ivan IlicIvan Ilic studied chemistry in Zagreb and Berlin. During his stay at the Max Planck Institute for Colloids and Interfaces he researched bio-derived materials for energy storage, graduating the doctoral program with the thesis: “Design of sustainable cathodes for Li-ion batteries”. During his postdoctoral stay at the Istituto Italiano di Tecnologia he developed the first edible rechargeable battery. Currently, he is working at Electrochaea as a senior development scientist, developing the microbial electrolysis cell.
Methanation and syngas fermentation – Part B
MAN DWE® SNG Solutions – Pathway to Commercial Scale
Christian Obermeier, MAN Energy Solutions SE
Christian ObermeierMr. Obermeier is a Mechanical Engineer. He has been working for MAN since 2008 when he started as a design engineer for reactor technology. Since 2017 until today, he works with sales on reactor technology and Power to Gas, including exapnsion of the company’s role in the PTX business, collecting customer’s view from ongoing projects for further development, and mentoring the Methanation technology from lab to commerical scale.
HZI methanation technologies – a current glimpse into activities and projects
Robert Böhm & Nils Lannefors, Hitachi Zosen Innova
Robert BöhmRobert Böhm began his career in 2014 as a Process Engineer and later as a Business Development Manager at microbEnergy GmbH, where he was entrusted with identifying new business opportunities and partnerships with key stakeholders. During his time at microbEnergy, Robert played a critical role in implementing demo projects, expanding the company’s presence in the renewable energy market, and establishing the company as a leading provider of methanation solutions. In 2022, Robert joined Hitachi Zosen Inova Schmack GmbH as Product & Marketing Manager Power-to-Gas, where he is focused on the development, launch and marketing of the company’s power-to-gas products. He is involved in defining and implementing the company’s product roadmap, conducting market research and analysis, and driving sales growth.

Nils LanneforsNils Lannefors holds a M.Sc in mechanical engineering from Lund Institute of Technology and has 25+ years’ experience in various positions in the energy industry at ABB, Alstom and GE Power before he entered HZI in 2019 as regional business development manager for renewable gas projects in the Nordic region. Nils is located in Stockholm, Sweden.

Conversion of syngas in a trickle bed reactor
Karin Berg, RISE Research Institutes of Sweden
Karin BergKarin Berg holds a master’s degree in Energy Systems Engineering from Uppsala University, where she graduated in 2021. Following her studies, she embarked on a career as a research and development engineer at RISE. Her work primarily involves conducting lab experiments related to biological methanation, as well as contributing to projects within CCS/U and small-scale biogas upgrading. Currently, Karin is actively engaged in an EU project called BIOMETHAVERSE. In this project, she is focused on designing and commissioning a demonstration plant for biological methanation using a Trickle Bed Reactor, advancing the technology from TRL 3 to 6.
DTU’s experiences of syngas fermentation in a trickle bed reactor
Hariklia N. Gavala, Technical University of Denmark
Hariklia GavalaHariklia Gavala is Chemist with a PhD in Biochemical Engineering and Environmental Technology (Departments of Chemistry and Chemical Engineering, respectively, University of Patras, Greece). She is currently Associate Professor at the Department of Chemical and Biochemical Engineering at the Technical University of Denmark. Her research focus is in Biorefinery Conversions with emphasis on production of biofuels, bulk chemicals and materials (bioplastics) from biomass including industrial effluents as well as in developing the syngas and CO2 platform towards biotechnological applications. Dr. Gavala has expertise in anaerobic digestion and fermentation processes with axenic cultures and mixed microbial consortia, pre-treatment methods, kinetics and modeling as well as membrane application in biorefineries. Dr. Gavala has obtained two Marie Curie fellowships and in 2010 was nominated for the “EliteForsk-priser” from the Department of Biotechnology, Chemistry and Environmental Engineering of Aalborg University in Denmark.
Synergies between different renewable methane conversion routes and innovative processes
Biomethane and e-methane development in Denmark
Annette Münther, Energinet
Annette MüntherAnette Münther has a Msc in chemical process engineering from the Technical University of Denmark. Her work has centered around biomethane for the past 6 years. First at Danish Gas technology Center, researching process and technology optimization for biomethane as well as derivative effects of biomethane on gas quality. After transferring to Energinet (the Danish TSO) in 2022, she has been responsible for planning and adapting the gas grid to the rapidly increasing amounts of biomethane. All the while keeping an eye on how new improvements and developing technologies offer new possibilities and challenges for the gas system.
A systemic approach for new green value chains
Nicola Bruni Zani, Pietro Fiorentini
Nicola Bruni ZaniNicola Bruni Zani studied at Politecnico di Milano: Master’s degree in Environmental Engineering (2020). During 2020 he has been active as Associate Research Fellow at University of Notre Dame (USA).
Since 2021 he is employed in Milan at Pietro Fiorentini, working in business development of company’s renewable solutions. According to Pietro Fiorentini strategy, his work embraces new ways of producing sustainable gases for boosting energy transition. He focuses mainly on Biomethane and Power-to-gas technologies, with special attention in finding the best applications for the production and utilization of these renewable energy carriers, in view of a future multivector energy system that integrates natural gas infrastructure with biomass resources and renewable electricity production.
Biological methanation at a large industrial biogas plant in Denmark
Thorkil Dahlgreen, Biogasclean A/S
Thorkil DahlgreenThorkil Dahlgreen is founder of Biogasclean with headquarters in Denmark and subsidiaries in USA, Canada, Brazil and Thailand. Thorkil has solid experience from building-up and developing start-ups. Thorkil was in 1985 founder and CEO of DANWIN, one of the pioneering companies in the Danish windmill industry. He was besides Chairman of the Association of Danish Windmill Manufacturers from 1989 to 1991. From 1991 to 1999 Thorkil worked with international sales of large turn-key power stations for Burmeister & Wain Scandinavian Contractors, BWSC. In 1999 he was founder and CEO of ECO-DAN. The company developed a unique system for automatic precision guidance of tractors, combines and implements. ECO-DAN was acquired by CLAAS. Thorkil founded Biogasclean in 2008 and was until the end of 2022 the company’s CEO; today he holds the position as CCO.
Biological methanation – economic feasibility and the next step by the anaerobic bio-reactive wall process (ABRW)
Marko Burkhardt, GICON® GmbH and Brandenburg University of Technology
Marko BurkhardtDr. Marko Burkhardt is technical manager of the research department of GICON® GmbH in Cottbus/Germany. His scientific work is located in process development and application of anaerobic digestion. Dr. Burkhardt has more than 18 years experince in education and research in anaerobic processes technology. He managed several projects of material and energy recovery from biomass and waste at the Institute of Environmental Technology at the Department of Circular Economy at the Technical University of Brandenburg. To obtain his PhD in 2012 he developed an innovative process design for biomethanation, which has been patented. Since 2018 he owns the postdoctoral lecture qualification in biochemistry and bioengineering technology.
Upgrading and liquefaction
GREEN MOBILITY from SEWAGE SLUDGE – Public Transport in Boden, Sweden
João Pinto-Machado, SYSADVANCE
João Pinto-MachadoShort bio.
Biomethane Polishing – a Case Study
Alexander Ryhl, Ammongas A/S
Alexander RyhlWith a background as Global Business Engineer from the Technical University of Denmark, Alexander originally set out to work with product design and development of different products. In 2016 he started in Ammongas where he could use his previously acquired knowledge to develop, sell, and build biogas upgrading plants, including the upgrading plant in Avedøre, supplying biomethane to the Copenhagen gas grid. Now as Head of Sales in Ammongas, he is responsible for expanding their environmental solutions throughout the world.
Updates on Biokraft’s biogas upgrading and liquefaction plants
Ørjan Bohinen & Ragnar Stare, Biokraft International AB
Ørjan BohinenØrjan Bohinen has a M.Sc. in technical physics and over 15 years of experience with everything from MRI service to petrophysics and project management. He spent most of his career in the oil industry, but for the past year he has been following Biokraft’s Liquefaction plants, both in the planning, commissioning and operation phase.

Ragnar StareRagnar Stare has been active for more than 25 years as M. Sc. chemical engineer, most of the times with designing, building or developing applications and projects with throughput of renewable materials, as process engineer, project manager (PMP) an operations manager. He has experience of development of both Biogasplants and (Thermochemical) gasification.

Advances in Nordsol’s integrated technology for LBG production
Rob van Beek, Nordsol
Rob van BeekAs a chemical engineer in business development, Rob feels that the energy transition needs innovative technologies. There is a lack of urgency and Rob wants to start working today on sustainable solutions for the future generations to come.
Symposium on biomass gasification – Part A
Life cycle emissions – woody biomass to bioLNG
Joule Bergerson, University of Calgary
Joule BergersonDr. Bergerson received her Ph.D. in a joint program of Civil and Environmental Engineering and Engineering and Public Policy at Carnegie Mellon University. She has a Master of Engineering Degree in Chemical Engineering with a collaborative program in Environmental Engineering from the University of Toronto and an undergraduate degree in chemistry and environmental science from the University of Western Ontario. Prior to this, Dr. Bergerson was a project manager and senior technical systems analyst at the Royal Bank of Canada between 1998 and 2001. Dr. Bergerson has been an assistant professor at the University of Calgary since September 2008.
Electricity assisted biomass gasification
Jürgen Karl, Friedrich-Alexander-Universität Erlangen-Nürnberg
Jürgen KarlProf. Jürgen Karl holds the Chair of Energy Process Engineering at the Friedrich-Alexander-University of Erlangen-Nürnberg in Germany, which is part of the newly founded Energy Campus of Nuremberg (EnCN). In 2007, he founded the start-up company agnion Inc. which developed the Heatpipe Reformer, an innovative indirectly heated steam gasification technology. As coordinator of several European R&D projects including the CarbonNeutralLNG project, Prof Karl focuses mainly on bioenergy and the synthesis of Second Generation Fuels by means of thermochemical and biological methanation.
Advances in sorption enhanced reforming
Thomas Hannl, University of Natural Resources and Life Sciences
Thomas HannlDr. Thomas Karl Hannl is Senior Researcher at the University of Natural Resources and Life Sciences Vienna and at the research institution BEST – Bioenergy and Sustainable Technologies GmbH. He received his doctoral degree in the field of energy engineering with a focus on phosphorus recovery from sewage sludge ashes from Luleå University of Technology, Sweden. His current research work focuses on fluidized bed technology, thermodynamic modeling for fuel ash characterization, and the development of thermochemical BtX-processes up to demo-scale validation.
Proven Bio-energy solutions by modular WoodRoll® Technology
Rolf Ljunggren, Cortus Energy AB
Rolf LjunggrenRolf Ljunggren, M.Sc. from KTH in Stockholm, SE, is the founder of Cortus Energy AB and the inventor of the WoodRoll® biomass gasification technology. His background is mainly in Swedish Industrial gas group AGA (now Linde) for thirteen years in metallurgy applications and On-Site gas solution. In Cortus he is behind the initial testing of the WoodRoll® process concept at KTH, first ½ MW test plant in Köping, SE, and now the first commercial plant of 6 MW syngas at Höganäs AB, SE. Further he is behind the testing of SNG production from WoodRoll® with catalytic processing in 2015 and 2018 as well as syngas digestion in 2021.
Symposium on Biomass Gasification – Part B
Co-production of methane in the CHP sector
Christer Gustavsson, BioShare AB
Christer GustavssonChrister has 30 years’ experience from the forest- and energy business, spanning from engineering to business development and investing. He holds a PhD in energy systems analysis and is passionate about developing research results to innovations and business. Before founding BioShare AB in 2017 he had a long career at the engineering and consulting company Pöyry, and held the position as manager for their Biorefining business in Scandinavia for 10 years.
Leroux et Lotz Technologies (LLT) Positioning in the Hydrothermal Gasification Sector
Lucia Jimenez, Leroux et Lotz Technologies
Christer GustavssonLucia JIMENEZ obtained a PhD degree in 2015 in the field of biomass gasification process. After that, she has worked at AVENISENSE WIKA TECH company as an R&D engineer. She joined Leroux et Lotz Technologies in July 2018 as an R&D engineer. She works on different projects concerning biomass & waste gasification and combustion.
Closing session
Challenges injecting renewable natural gas into the natural gas network: the case of deoxygenation of biomethane
Sander Reijerkerk, Arol Energy
Sander ReijerkerkSander Reijerkerk is the Technical Director at AROL ENERGY. He obtained his PhD in Membrane Science & Technology in 2010 at the University of Twente (The Netherlands) where he focused on material & process development for the removal of CO2 from flue- and process gasses. Specialized in renewable energies he then spent two years at the CEA Grenoble (France) working on membrane development for hydrogen fuel cells before switching to biogas and joining AROL ENERGY. He currently is in charge of the execution of all engineering and construction contracts, the development of new products and processes as well as the standardization and continuous improvement of the existing product portfolio.
Biomethane to 2040 what can we expect?
James Watson, Eurogas
James WatsonDr Watson is the Secretary General of Eurogas, a role he has held since January 2019. Eurogas is the association representing the European gas wholesale, retail and distribution sectors. Prior to taking the helm at Eurogas, Dr Watson was the Chief Executive Officer of SolarPower Europe, the European solar industry association. Before joining SolarPower Europe, Dr Watson worked as the Director of Public Affairs for Weber Shandwick, specialising in energy and trade policy. Before coming to Brussels, Dr Watson worked for the Commonwealth Secretariat on a European Commission project on trade and sustainable development based in Ethiopia. Earlier in his career James worked for various UK government bodies in London and worked as a lecturer in Environmental Law at the University of Manchester. He holds a Ph.D in International Trade and Environmental Law from the University of Leeds, and is currently a Visiting Professor at the Vrije Universiteit Brussel.