Battery waste in, clean biogas out: if you like the idea of turning used alkaline batteries into high‑performance pellets that clean up gas streams, this role will feel like a playground rather than a job. You will be the person who makes sure that what works in a beaker keeps working in a reactor, a pilot plant and finally in the real world of biogas plants.

About the role
Klinloop is developing a proprietary sorbent material, produced from specific alkaline battery residues through a hydrometallurgical route, to remove hydrogen sulfide from biogas. You will own the journey from lab recipe to robust, scalable production, working hand‑in‑hand with the CTO and a future COO in a small, science‑driven team.

Right now, the process runs at lab scale and a pilot plant is being set up. Your mission is to stabilise and scale that process, create solid operating and quality practices, and help transform a promising material into a reliable industrial product that customers can trust.

What you will do

Lead day‑to‑day production of material batches, from lab reactors to the pilot plant.





Standardise the current hydrometallurgical process (leaching, precipitation, filtration) to reduce variability between batches and document clear operating procedures.

Design and implement a quality control protocol, defining control points, tests and acceptance criteria to ensure batch‑to‑batch reproducibility.

Drive the transition from powder to pellets: complete the pellet development work, optimise pellet properties (mechanical strength, structural stability, porosity) and verify that performance matches powder behaviour.

Test and tune pellets so that they work reliably under real operating conditions, including biogas flow and pressure‑drop constraints.

Manage operational basics: contact suppliers, request quotes and organise purchasing of raw materials, consumables and equipment.

Carry out technology scouting and benchmarking versus alternative materials (for example activated c

📌 Talento Cientifico (Madrid)
🏢 Talento Cientifico
📍 Madrid