Internship

R&D, Carbon Capture and Purification Process Optimisation F/H

Posted on 10/26/2025

Air Liquide

Air Liquide

No salary listed

Paris, France

In Person

Campus Innovation Paris, Les Loges-en-Josas, 1 Chemin de la Porte des Loges; on-site internship for early 2026 start, 6 months

Air Liquide is a world leader in gases, technologies and services for industry and health. Present in 60 countries with 66 300 employees, the Group serves more than 4 million customers and patients. Oxygen, nitrogen and hydrogen are small molecules essential to life, matter and energy. They embody Air Liquide's scientific territory and have been at the heart of the Group's business since its creation in 1902.
Air Liquide places diversity at the heart of its activities and is committed in particular to promoting professional equality and the employment of workers with disabilities.
The Paris Innovation Campus (78 - Les Loges en Josas) is Air Liquide's largest R&D center.
It develops innovative solutions for all of the Group's activities. More than 250 researchers work in 48 laboratories equipped with state-of-the-art equipment and experimental platforms, enabling them to explore numerous research

How will you CONTRIBUTE and GROW?

At Air Liquide, we recognize that Carbon Dioxide (CO2​) is both a molecule to be managed for climate purposes and a critical ingredient for industries like food and beverage. In response, we are focusing our innovation in Carbon Capture and Utilization (CCU) on developing state-of-the-art purification technologies. Working alongside our partners, we are engineering solutions that guarantee a food-grade CO2​ supply that is reliable, safe, and compliant with the highest industry standards, reinforcing our position as an expert in the entire CO2​ value chain.

Missions and Responsibilities

Your mission in this internship, as a part of the teams of AL R&D and AL Deutschland, will be to study the CO2 capture process and purification to achieve a reliable CO2 food-grade supply. The internship will require an utilisation of different tools, ranging from material characterisation to process simulation.  The intern will need to understand the specificities of different compounds present in trace amounts, understand the different experimental results and propose modeling and mitigation solutions.

The main missions entrusted to you will be:

  • Collect relevant data to understand purification unit 

  • Document current methods employed in CO2 unit

  • Perform analysis on samples collected to understand the chemical composition and treat data of the characterisation

  • Link the results of the characterisation to the data of the unit where the sampling was effectuated 

Are you a MATCH?

  • End-of-study internship (process or chemical engineering cycle / Master 2 or 2nd year engineering cycle / Master 1)

  • Process / energy / energy transition culture

  • Strong analytical and critical thinking skills for troubleshooting 

  • Rigorous, methodical and organized to structure the approach and capitalize on it

  • Proactive profile: able to progress autonomously and find necessary information

  • Strong learning capacity

  • Teamwork ability

  • Proficiency in English and good communication skills

Additional Information

Air Liquide has been awarded the Happy Trainees label.

The internship will be carried out at Campus Innovation Paris, Air Liquide's R&D center in France located in Loges-en-Josas (1, Chemin de la Porte des Loges).

  • Geographical location: France / Ile de France / 78 - Les loges

  • Desired start date: Early 2026

  • Duration of the internship : 6 months

To know more about our company and get some tips to join us, click here

Our Differences make our Performance

At Air Liquide, we are committed to build a diverse and inclusive workplace that embraces the diversity of our employees, our customers, patients, community stakeholders and cultures across the world.

We welcome and consider applications from all qualified applicants, regardless of their background. We strongly believe a diverse organization opens up opportunities for people to express their talent, both individually and collectively and it helps foster our ability to innovate by living our fundamentals, acting for our success and creating an engaging environment in a changing world.