ADVANCED MATERIALS & PROCESSES | JULY/AUGUST 2025 26 As climate change continues to pose a critical global challenge, various carbon capture methods are being developed for collecting and either permanently storing or reusing the trapped gas in an effort to reduce emissions. TerraFixing is leading the charge with its affordable and scalable direct air carbon capture (DAC) technology. Unlike conventional methods, this approach efficiently captures CO2 directly from the atmosphere— even in colder climates—making their solution unique in the industry. By reducing current CO2 emissions and addressing historical carbon footprints, TerraFixing is paving the way toward achieving global net-zero targets. ZEOLITE-BASED TECHNOLOGY At the core of TerraFixing’s innovation lies their use of zeolite monoliths—microporous, aluminosilicate minerals renowned for their exceptional CO2 adsorption capabilities. These cost-effective and durable materials have a proven track record in industrial applications spanning over two decades. The monoliths are crafted with a composite of zeolite crystals and binders, maximizing the surface area for CO2 capture while ensuring structural strength. This dual functionality TECHNICAL SPOTLIGHT CARBON CAPTURE REINVENTED: ENSURING QUALITY THROUGH TESTING A carbon capture system is being revolutionized by a testing process that ensures the mechanical properties of zeolite monoliths. tester plays a pivotal role in testing the mechanical properties critical to the DAC process. The OmniTest 25 evaluates two key mechanical parameters: • Cold crushing strength (CCS): Ensuring monoliths can endure mechanical stress during operation. • Modulus of rupture (MOR): Assessing the structural robustness under applied loads. All testing is conducted in compliance with ASTM C133-97 standards, ensuring the materials meet stringent quality and durability benchmarks. This standard is widely used for refractory materials, confirming that the zeolite monoliths possess the necessary strength for industrial applications. Several features set the Mecmesin OmniTest 25 apart in the R&D labs: • Capacity: Its 25 kN load capacity accommodates the rigorous demands of Terra- Fixing’s large-scale monoliths. • Precision and reliability: Accurate measurements are crucial for evaluating the mechanical properties of their adsorbents. The OmniTest 25 materials tester provides high-resolution force readings, ensuring consistent test results. is essential for the long-term success of the DAC systems. The structural integrity of these monoliths is vital as they must withstand operational stresses, from airflow pressure variations to repeated adsorption and desorption cycles. MATERIALS TESTING FOR QUALITY ASSURANCE To maintain the structural integrity and operational efficiency of the zeolite monoliths, TerraFixing relies on the Mecmesin OmniTest 25 universal testing machine. This versatile materials Testing zeolite monoliths for cold crushing strength using the Mecmesin OmniTest 25.
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