Sebastian Rejman

PhD Candidate
Employed since: May 2021
Room: DDW 4th floor open area



Value-added products from polyolefin waste by catalytic pyrolysis

Due to insufficient recycling and incineration, plastic waste has become a global problem. In my research, I’m trying to find economically viable ways to convert polyolefin waste to a value added product, be it chemicals, fuels, or cracker feed. The process of choice is catalytic pyrolysis. My second project will focus on applying new DFT tools to improve our fundamental understanding of heterogeneously catalyzed processes from an electronic perspective.



2021 – present
PhD Candidate in the group of prof. dr. ir. Bert Weckhuysen, Inorganic Chemistry and Catalysis, Utrecht University

2019 – 2021
M.Sc. Chemistry – RWTH Aachen University

  • Focus: Catalysis and Computational Chemistry
  • Sc. Thesis with R. Palkovits Group – Studied catalyst for sustainable production of platform chemicals using density functional theory

Roland Berger – Consulting Intern – Chemicals Competence Centre

  • Chemicals Competence Centre (Düsseldorf/Doha)
  • Supported a Qatari governmental organisation in the planning of a world scale chemical cluster

2018 – 2019
University of Cambridge – Visiting Scientist

  • Developed a novel hybrid nanoparticle system for applications in sensing and catalysis

DWI Leibniz Institute for Interactive Materials – Research Assistant

2015 – 2018
B.Sc. Chemistry RWTH Aachen

  • B.Sc. Thesis with A. Herrmann Group – Developed synthetic groundwork for a sonochemical antibiotic release system


Vollmer, Ina; Jenks, Michael J. F.; Rejman, Sebastian; Meirer, Florian; Gurinov, Andrei; Baldus, Marc; Weckhuysen, Bert M.

Unravelling potential reaction intermediates during catalytic pyrolysis of polypropylene with microscopy and spectroscopy Journal Article

In: Catalysis Science and Technology, vol. 52, 2024, (Cited by: 0; All Open Access, Green Open Access, Hybrid Gold Open Access).

Links | BibTeX

Rejman, Sebastian; Vollmer, Ina; Werny, Maximilian J.; Vogt, Eelco T. C.; Meirer, Florian; Weckhuysen, Bert M.

Transport limitations in polyolefin cracking at the single catalyst particle level Journal Article

In: Chemical Science, vol. 14, no. 37, pp. 10068 – 10080, 2023, (Cited by: 4; All Open Access, Gold Open Access, Green Open Access).

Links | BibTeX

Cover Gallery

Chemical Science
2023, Vol. 14, Issue 37