I’m Sergi Arfelis, a chemical engineer and LCA specialist who helps companies understand and reduce their environmental impact. With experience across large multinationals, innovative startups, and research, I bring a practical, science‑based approach to life cycle assessment, product carbon footprint, and sustainability strategy.
With a Ph.D. in Environmental Sciences (LCA as a tool for the industrialisation of chemical and mechanochemical processes). After early roles at Dow and Clariant, I shifted to sustainability. Working with startups such as Deasyl SA on green chemistry, biofuels, and energy storage not just to measure impact, but to make mine matter.
During my Ph.D., I’ve worked with the UNESCO Chair in Life Cycle and Climate Change, participated as observer at COP27 and spoken at SETAC Europe, LCIC and much others congresses. I also taught LCA and PCF/OCF in masters and others post graduated courses in the UPF-BSM and ESCI. I even had the opportunity to spend some months in Pontificia Universidad Católica de Chile, where I fell in love with the nature from the south of the country in La Patagonia. That connection stays with me — I’ve always felt most grounded in nature, and I want my work to help protect it.
Now at Ravago, I drive LCA strategy and decarbonization, aligning business with science to enable real, measurable impact.

Previous LCA and Carbon Footprint projects
- Automating Ravago’s Product Carbon Footprint processes, scaling from 20–30 to over 300 PCF calculations per year
- PhD thesis: LCA as a tool for the industrialisation of chemical and mechanochemical processes
- LCA of:
- PHB production at University Rovira i Virgili (URV)
- TRL2 to TRL5 mechanochemical processes at Deasyl SA
- 13 products of Trumpler (leather industry)
- Oxalic acid production facility in Spain
- Publication of 4 EPDs for Celsa Group’s steel products
- Carbon footprint assessment of a green hydrogen plant in the Canary Islands (Disa and Enagás)
- Organisational carbon footprint at:
- 1) PRBB (health sector)
- 2) GCR (plastics recycling)
- 3) Port Authority of Las Palmas de Gran Canaria
Publications in International Scientific journals
PUBLISHED AS FIRST AUTHOR
- Industry 4.0 Solutions to Plastics Management, doi: 10.1007/978-3-030-90033-5_14
- Chemical LCA: a review, doi: 10.1039/d2gc02089k
- Mechanochemistry: a review, doi: 10.1016/j.heliyon.2024.e34655
- LCA of CAZN, doi: 10.1016/j.scitotenv.2022.161094
- Cellulose extraction from wood chips LCA, doi: 10.1021/acssuschemeng.3c07477
- Cellulose micro- /nanofibers: A comparative LCA, doi: 10.1016/j.scitotenv.2023.162482
- Nicotine extraction LCA, doi: 10.1016/j.heliyon.2025.e44292
PUBLISHED AS A CO-AUTHOR
- LCA of PE and PP multi film compared with PLA and PLA reinforced with nanoclays film, doi: 10.1016/J.JCLEPRO.2022.134891
- Techno-economic and environmental evaluation of a market pulp reinforced with micro- /nanofibers as a strengthening agent in packaging paper, doi: 10.1016/J.JCLEPRO.2022.131265
- Biogenic Carbon in fast-moving products: a deception or real contribution to circularity?, doi: 10.1016/j.envadv.2023.100461