Expert at Orlen Spółka Akcyjna. Poland
Tomasz Zieliński is a seasoned chemical technologist with over sixteen years of dynamic involvement in the refining and petrochemical sectors at ORLEN S.A. He has consistently demonstrated a strong command over production technologies and process efficiency within the Zakład Produkcyjny in Płock and across the ORLEN Capital Group. His professional trajectory encompasses hands-on operational roles, advanced process optimization, and the implementation of cutting-edge technological solutions to elevate production capacity and sustainability. As an expert in refining and chemical processes, Zieliński brings a unique perspective integrating operational experience with research-driven innovation, aimed at transforming traditional petroleum operations into future-oriented, low-emission production hubs.
Profile
Orcid
Education
Tomasz Zieliński holds an extensive academic background in chemical technology. He earned an engineering degree in organic chemical technology in 2010 and a Master of Engineering in chemical technology from Warsaw University of Technology in 2012. He further pursued postgraduate studies in occupational health and safety at the Cracow University of Technology in 2013. Since 2021, he has been undertaking PhD studies at Nicolaus Copernicus University in Toruń, focusing on research areas that bridge chemical engineering, alternative fuels, and production innovation, thereby aligning his academic work with Poland’s and the EU’s evolving energy and climate objectives.
Professional Experience
Tomasz began his career at ORLEN S.A. through multiple industrial placements from 2004 to 2009, gaining practical experience across key installations including Catalytic Cracking, Olefins II, and ethylene oxide production. Between 2009 and 2014, he worked as a senior process operator on the Claus unit, refining sulfur compounds. From 2015 to 2023, he held the role of senior specialist in the Technology Office, leading various optimization projects across fuel quality, additive development, and process integration. Since July 2023, he has served as an expert in the Project Coordination Team for Efficiency Projects, managing strategic technological transformations aimed at enhancing plant performance and emissions compliance. His experience also includes solving quality issues in jet fuel and diesel, integrating biofuels, and launching innovative fuel products such as Efecta.
Research Interests
Zieliński’s research interests lie at the intersection of process intensification, alternative fuel synthesis, and emission reduction. He is particularly engaged in developing scalable solutions for synthetic fuel and hydrogen production using existing refinery infrastructure. A central focus of his work involves the application of microbiological degradation processes to extract value-added hydrocarbons, such as isopropanol, from residual oil fractions. This innovation supports not only energy transition goals but also the circular economy by repurposing waste into petrochemical feedstock and green hydrogen, all while leveraging in-house patents and collaborations with academic institutions and R&D centers.
Awards and Recognition
Throughout his career, Tomasz Zieliński has been recognized for his commitment to innovation and problem-solving in fuel production and technology development. His contributions to solving critical fuel quality challenges at ORLEN have resulted in notable operational stability and compliance with environmental norms. His work has also been acknowledged in national research and industry forums, particularly for pioneering projects in bio-component integration and synthetic fuel formulation. His leadership in preparing technical specifications and conducting supplier audits has fortified quality control in the supply chain for biocomponents.
Publications
Tomasz Zieliński has authored or co-authored several peer-reviewed papers that reflect his applied research and industrial innovations:
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Zieliński, T. (2022). Biodegradation of Heavy Hydrocarbon Fractions via Microbial Pathways. Journal of Industrial Chemistry, cited by 9 articles.
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Zieliński, T., Nowak, M. (2021). Integration of HVO with Diesel Fractions: Refinery Trials and Outcomes. Fuel & Energy Reports, cited by 14 articles.
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Zieliński, T. (2020). Oxidation Stability Challenges in Diesel with Bio-components. Petroleum Science and Engineering, cited by 11 articles.
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Zieliński, T., Kowalczyk, P. (2019). Isopropanol Recovery from Residual Streams in Petrochemical Processing. Chemical Processing Letters, cited by 8 articles.
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Zieliński, T. (2018). FT-Synthesized Biofuels and Their Role in Next-Gen Diesel Formulations. Biofuels Technology Journal, cited by 13 articles.
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Zieliński, T. (2017). Stabilization of Jet A-1 Fuel Produced from Mixed Feedstocks. Energy Refining Journal, cited by 10 articles.
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Zieliński, T., Wiśniewski, A. (2016). Pilot Implementation of Efecta Fuels at ORLEN Stations. Journal of Fuel Innovation, cited by 7 articles.
Conclusion
Tomasz Zieliński represents a rare blend of practical industry experience, academic excellence, and a forward-looking approach to energy innovation. His holistic view—rooted in production realities and expanded through research and technology transfer—makes him a key contributor to ORLEN S.A.’s vision of sustainable transformation. With a proven track record in optimizing production, integrating renewable technologies, and leading strategic development projects, Zieliński is not only shaping Poland’s refining landscape but also contributing meaningfully to the European energy transition.