Chemical engineer turned LCA practitioner — working where industry, ecology and policy intersect.

I'm Sergi Arfelis, a chemical engineer and LCA specialist who helps companies understand and reduce their environmental impact. After early roles at Dow and Clariant, I shifted to sustainability — working with startups like Deasyl SA on green chemistry, biofuels and energy storage. Not just to measure impact, but to make mine matter.

I hold a Ph.D. in Environmental Sciences with a thesis on LCA as a tool for the industrialisation of chemical and mechanochemical processes. During my doctorate I worked with the UNESCO Chair in Life Cycle and Climate Change, participated as an observer at COP27, and presented at SETAC Europe, LCIC and other international congresses. I've taught LCA and PCF/OCF in master's and postgraduate programs at UPF-BSM and ESCI.

I spent some months at Pontificia Universidad Católica de Chile, where I fell in love with the nature of the south of the country — 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.

Alongside, I'm building ALCA — a consultancy that helps organisations measure, mitigate and adapt to climate change.