Meet the Scientists

Yuri Sebregts

Yuri Sebregts

Executive Vice President Technology and Chief Technology Officer

Yuri Sebregts was appointed Executive Vice President Technology in March 2018. He leads a global Technology organisation, which combines technical, scientific and commercial expertise. These teams are based at Shell’s major technology centres in Amsterdam, Houston and Bangalore, and at smaller technical centres located close to Shell’s customers and partners.

Yuri is responsible for Shell’s technology strategy and new technology development, as well as external technology commercialisation activities. These range from research and development (R&D) programmes delivered in-house and through collaborations with external partners, to deployment of technologies across Shell’s operations, as well as catalyst manufacturing and sales, and technology licensing and technical services to third parties. Yuri also oversees the company’s digitalisation activities to apply proven and new digital technology solutions to Shell’s existing businesses and emerging new business models.

Previously Yuri was Executive Vice President Innovation and R&D since January 2015. He has held several technical and commercial positions including in Shell’s Chemicals, Lubricants and Refining businesses.

He completed his MSc in chemistry at Leiden University in the Netherlands and joined Shell as a technologist at the Shell Moerdijk Chemical plant in 1991.

Yuri is married with two daughters and lives in the Netherlands.

Speeches and articles

15 April, 2019: Trouw article English translation – How Shell is working towards a sustainable energy future

Birol Dindoruk

Birol Dindoruk

Chief Scientist Reservoir Physics

Birol Dindoruk holds a BSc degree from Istanbul Technical University, an MSc degree from The University of Alabama, a PhD degree (with a minor in mathematics) from Stanford University, all in petroleum engineering and an MBA degree from University of Houston.

Before joining Shell, he has worked at Amoco Tulsa Research Center on various compositional simulator development projects. Since joining Shell in 1997, he has held various scientific and technical roles, including a Principal Technical Expert and Team Leader in Reservoir Engineering working for Shell International Upstream, Exploration and Production.

He is adjunct faculty at the University of Houston, Department of Petroleum Engineering and a consulting professor at Stanford University Energy Resources Engineering Department. Birol is also a global consultant for Fluid Properties (PVT) & Miscible/Immiscible Gas Injection EOR & Reservoir Simulation.

Birol was elected as an incoming director of the Society of Petroleum Engineers (SPE) and selected to be a member of the National Academy of Engineers (NAE) in 2017. He was a recipient of the SPE Cedric K. Ferguson Medal in 1994 and Lester C. Uren Award in 2014. He served the SPE in various capacities including as one of the Co-Executive Editors of SPE Formation Evaluation/Reservoir Engineering Journal (2004-2006) and as one of the SPE Distinguished Lecturers for 2010–2011.

In addition to his professional SPE activities, he served as Editor-in-Chief (EIC) for Journal of Petroleum Science and Engineering (2006-2013) and started serving in January 2017 as an Editor in Chief for Journal of Natural Gas Science and Engineering.

Carl Mesters

Carl Mesters

Chief Scientist Chemistry and Catalysis

Catalysts have been the focus of Carl Mesters’ work for 30 years - leading to his appointment in 2005 as Shell Chief Scientist Chemistry and Catalysis.

Since joining Shell in 1984, Carl has been active in catalysis and process R&D across many areas, resulting in more than 60 patents filed. He is currently working on heavy oil conversion and is based at Shell Technology Center Houston. He previously spent two years there developing catalysts used to produce ethylene oxide, an essential building block for synthetic fabric, plastic bottles and anti-freeze.

He also developed a new catalyst to reduce nitrogen oxide emissions from chemical plants. Carl has contributed significant knowledge to the Pearl GTL (gas-to-liquids) plant in the Middle East, where catalysts are central to the process of converting natural gas to liquid fuels and other products.

Carl is a former Chairman of the Catalysis Society of the Royal Dutch Chemical Society. He pursued a degree in physical and inorganic chemistry at the University of Utrecht in his native Netherlands, where he also completed a research PhD.

Video testimonial

Carl talks about catalysis to produce novel transport fuels.

Watch Carl’s video on YouTube

Detlef Hohl

Jeremy Shears

Jeremy Shears

Chief Scientist Biosciences

Jeremy was appointed Shell Chief Scientist Biosciences in 2018. He will lead the company’s strategic thinking and innovation agenda in this area. Previously, he was General Manager of Shell’s Biodomain where he led R&D on advanced biofuels and hydrogen in the Netherlands, USA, UK and India.?

Jeremy joined Shell in 1986 and has held various commercial and technology management positions in the UK, Belgium, United Arab Emirates and Singapore, covering a variety of business areas including chemicals, lubricants, product safety, biofuels and new energies. He holds a PhD in Biochemistry from the University of Bristol and is a Fellow of the Royal Society of Chemistry. He sits on the UK government’s Innovation Strategy Board for the chemistry-using industries and on the Industrial Biotechnology Leadership Forum.

Jeremy is married with two grown-up daughters.

Joe Powell

Joe Powell

Chief Scientist Chemical Engineering

Joe Powell is a Fellow of the American Institute of Chemical Engineers and has been Shell’s Chief Scientist - Chemical Engineering since 2006. In 1988, he joined the Process Development Department at Shell Technology Center Houston where he has led R&D programs in new chemical processes, biofuels, and enhanced oil recovery, in addition to a Hunters innovation group.

Through his work in R&D, Joe has been granted almost 50 patents with 91 applications pending. He has received several industry awards including the Arthur D Little Award for Chemical Engineering Innovation (AIChE 1998) and American Chemical Society Team Innovation Award (2000).

He is co-editor and chapter author for the book Sustainable Development in the Process Industries: Cases and Impact, and has served AIChE in various roles before being elected to its Board of Directors in 2016.

Joe currently serves on the US National Academy Board on Chemical Sciences and Technology, the US Department of Energy Hydrogen Technical Advisory Committee and the Editorial Committee of Annual Review of Chemical and Biological Engineering. He obtained a PHD in chemical engineering from the University of Wisconsin-Madison in 1984, following a Bachelor of Science in chemical engineering from the University of Virginia in 1978.

Joe is a proud father of three sons and lives with his wife in Houston, TX.

Wolfgang Warnecke

Wolfgang Warnecke

Chief Scientist Mobility

Dr Wolfgang Warnecke was appointed Shell’s Chief Scientist Mobility in May 2011. His expertise in all forms of mobility, vehicle technology, fuels and lubricants sees him advising on technology strategy, championing science, R&D and innovation, enhancing Shell’s technical reputation in the fast-changing area of mobility and looking ahead to future solutions.

Wolfgang studied mechanical engineering at the Technical University of Hannover, specialising in automotive combustion engines, and gained a PhD in automotive engineering from Hamburg Technical University in 1987.

Since joining Shell on graduation, Wolfgang has gained extensive experience in Germany and the UK as a scientist and business leader in the fields of lubricant development, engine testing and vehicle technology, technical services for lubricants, and fuels marketing.

In 2005, Wolfgang, together with Dr Wolfgang Steiger of Volkswagen, was awarded the “Professor Ferdinand Porsche Prize”, considered by many to be the world's most prestigious award for automotive engineers, for their work on synthetic fuels development.

Read Wolfgang’s Inside Energy interview: Driving into a low-carbon future

Video testimonial

Watch the video: Wolfgang Warnecke discusses how innovative products and technologies will help meet the world’s growing demand for transport with fewer CO2?emissions.

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