Introducing Yerrawa

Welcome to Yerrawa. We are a team of like-minded and determined individuals, all sharing a vision for creating a sustainable future. We believe that our sophisticated technology can help solve the ongoing CO2 problem. Would you like to find out more? Explore our website today.

Circular Technology | For a Sustainable Future


Learn more about our vision and the various ways our technology could be implemented to create a circular economy. 


Stay informed and learn more about our latest developments and collaborations.

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Yerrawa is continually building upon its technology, so stay in touch to learn about upgrades and other changes.

More Questions

If you want more information or if you want to contact one of our engineers, feel free to contact us.

Our Patents

Here  you can find our filed patents as well as the patents of our sister company’s 

Our Story

Paul O’Connor – Founder

My own professional background – like most of our team – has been in the fossil fuel industry. I started my career at Shell, where I mainly worked in the area of cracking heavy oils into useful products. Thereafter I started working at Akzo Nobel Catalysts, where the focus was to develop catalyst technology to improve key refinery processes: Catalytic Cracking and Hydro processing. Already in those days (1980s), there was an environmental awareness leading to a need for developing cleaner fuels.

At the end of 2005 I left that field to form my first start-up: BIOeCON. Our goal was to convert waste biomass into fuels or chemicals by making use of smart catalytic technologies. Since then, with my team I have been active in several related ventures including KiOR, ANTECY and CELLiCON.

In 2018 CELLiCON acquired BIOeCON’s technology to separate cellulose from biomass and/or textile wastes and to upcycle this into high quality nano-cellulose structured materials. In 2019 Climeworks  obtained ANTECY’s technology for CO2 capturing and conversion.

Recently I have become enthusiastically involved in the quest to convert other waste materials such as non-cellulosic biowaste, plastics and fossil organic materials into valuable green products without the emission of greenhouse gasses like CO2, CH4, NOx etc. and/or toxic materials. Based on this focus, and with the help of our group of specialists, the Yerrawa vision emerged.