Welcome to the official website of the International Symposium on Feedstock Recycling of Polymeric Materials (ISFR 2026).

It is our great pleasure to invite you to join us in Karlsruhe, Germany, on Sunday, September 6th - Wednesday, September 9th 2026, for what promises to be a stimulating forum for discussion and collaboration in the field of circular carbon economy and sustainable waste management.

ISFR provides a premier international platform for academia and industry to exchange the latest scientific and technological developments in feedstock recycling. The symposium focuses on the valorization of polymeric waste—including waste plastics and waste from electrical & electronical equipment —and their transformation into valuable chemicals and feedstocks via thermochemical and chemical-catalytic routes. High-quality papers selected from the symposium will be invited for submission to a special issue of the Journal of Material Cycles and Waste Management.

ISFR 2026 continues a successful series of symposia that began in 1999 in Sendai, Japan, and has since become a key event for the international recycling community. We are delighted to welcome the symposium back to Karlsruhe, which also had the honor of hosting the 3rd ISFR in 2005. The previous symposium brought together a global audience of researchers and practitioners.

We sincerely look forward to welcoming you to ISFR 2026 for a stimulating and fruitful symposium.

• 1st ISFR, 1999, Japan: Tohoku University, Sendai, 31st October - 3rd November, 1999.
• 2nd ISFR, 2002, Belgium: Vrije Universiteit Brussel, Ostend, 8th - 11th September, 2002.
• 3rd ISFR, 2005, Germany: University of Karlsruhe, Karlsruhe, 25th - 29th September, 2005.
• 4th ISFR, 2007, Korea: Korea Institute of Energy Research, Jeju, 16th - 20th September, 2007.
• 5th ISFR, 2009, China: Sichuan University, Sichuan, 11th - 14th October, 2009.
• 6th ISFR, 2011, Spain: University Rey Juan Carlos, Toledo, 4th - 6th October, 2011.
• 7th ISFR, 2013, India: CSIR - Indian Institute of Petroleum (Dehradun), New Delhi, 23rd - 26th October, 2013.
• 8th ISFR, 2015, Austria: Montanuniversität Leoben, 7th - 10th October, 2015.
• 9th ISFR, 2017, Czech Republic: VSB - Technical University of Ostrava, 10th - 13th July, 2017.
• 10th ISFR, 2019, Hungary: MTA TTK, Hungary, 26th - 29th May, 2019.
• e-ISFR, 2021, Online: Tohoku University, Japan, 29th - 30th November, 2021.
• 11th ISFR, 2022, Thailand: PETROMAT, Thailand, 29th November - 2nd December, 2022.
• 12th ISFR, 2023, Japan: Tohoku University, Sendai, 6th - 8th November, 2023.
• 13th ISFR, 2024, Korea: University of Seoul, Jeju, 21st - 23rd October, 2024.

Conference Chair

• Prof. Dieter Stapf (Karlsruhe Institute of Technology, Germany)
• Prof. Toshiaki Yoshioka (President of FSRJ/ Tohoku University, Japan)

Conference Secretary

• Dr. Salar Tavakkol (Karlsruhe Institute of Technology, Germany)
• Prof. Shogo Kumagai (Tohoku University, Japan)

Scientific Committee

• Prof. Thallada Bhaskar (CSIR‑AMPRI, India)
• Prof. Zsuzsanna Czégény (Hungarian Academy of Sciences, Hungary)
• Prof. José María Escola (Rey Juan Carlos University, Spain)
• Prof. Stanislav Honus (VSB‑Technical University of Ostrava, Czech Republic)
• Prof. Joo‑Sik Kim (National University of Seoul, Korea)
• Dr. Do‑Kyoung Kim (Korea Research Institute of Chemical Technology (KRICT))
• Prof. Young‑Min Kim (Daegu University)
• Prof. Shogo Kumagai (Tohoku University, Japan)
• Prof. Gartzen Lopez (University of the Basque Country UPV/EHU, Spain)
• Prof. Jiaqi Lu (Shanghai University of Engineering Science, China)
• Prof. Gerrit A. Luinstra (University of Hamburg, Germany)
• Prof. Hataikarn Manuspiya (Chulalongkorn University, Thailand)
• Prof. Norbert Miskolczi (University of Pannonia, Hungary)
• Prof. Suguru Motokucho (Nagasaki University, Japan)
• Prof. Izumi Okajima (Shizuoka University, Japan)
• Prof. Martin Olazar (University of the Basque Country UPV/EHU, Spain)
• Prof. Patchiya Phanthong (Tohoku University, Japan)
• Prof. Prasert Reubroycharoen (Chulalongkorn University, Thailand)
• Prof. Yuko Saito (Tohoku University, Japan)
• Prof. David P. Serano (IMDEA Energy, Spain)
• Prof. Hartmut Spliethoff (Technical University of Munich, Germany)
• Prof. Dieter Stapf (Karlsruhe Institute of Technology, Germany)
• Prof. Masazumi Tamura (Kyoto University, Japan)
• Dr. Shinji Tanaka (National Institute of Advanced Industrial Science and Technology, Japan)
• Dr. Salar Tavakkol (Karlsruhe Institute of Technology, Germany)
• Prof. Takayuki Tsukegi (Kanazawa Institute of Technology, Japan)
• Prof. Ravikrishnan Vinu (Indian Institute of Technology Madras, India)
• Prof. Paul T. Williams (University of Leeds, UK)
• Prof. Shigeru Yao (Hiroshima University, Japan)
• Prof. Toshiaki Yoshioka (Tohoku University, Japan)
• Dr. Yeshui Zhang (University of Aberdeen, UK)

Honorary Committee

• Prof. Henning Bockhorn (Karlsruhe Institute of Technology, Germany)
• Dr. Soo Hyun Chung (Korea Institute of Energy Research, Korea)
• Prof. Walter Kaminsky (University of Hamburg, Germany)
• Prof. Tohru Kamo (Waseda University, Japan)
• Prof. Akira Oku (Research Institute for Production Development, Japan)
• Prof. Akitsugu Okuwaki (Tohoku University, Japan)
• Prof. Yusaku Sakata (Okayama University, Japan）

For any question please contact the Organizing Committee of ISFR 2026. 

isfr2026∂itc.kit.edu