Rushnu’s CarbonCatalyze™ evolve how chlorine is made. By eliminating electrolysis, CarbonCatalyze significantly reduces electricity use—from 2.7 MWh per ton of chlorine to 0.8 MWh—and replaces it with low-grade heat. This lowers overall energy efficiency.
We're kicking off our first field test for a customer in California—here’s a look at the system in action!
Lowering cost and energy
The economic advantage comes from two main factors. First, CarbonCatalyze™ replaces complex electrochemical systems with a simpler thermochemical process, reducing capital intensity and operational complexity. Second, it shifts energy use away from expensive electricity to cheaper heat, while also lowering total energy demand. Together, these changes reduce costs by roughly 60%, while delivering the same chlorine products industry depends on.
A Dual Catalyst System for Continuous Productivity
At the core of CarbonCatalyze™ is a dual-catalyst process designed for efficiency and profitability: a mineralization catalyst initially reacts with CO₂ from flue gas, transforming it into stable minerals, while a secondary catalyst regenerates the primary mineralization catalyst through a thermal process, releasing valuable by-product. This approach not only enhances sustainability by recycling catalysts but also creates an additional revenue stream from the production of by-product.
Rushnu's CarbonCatalyze™ is recipients of NSF SBIR Phase I award for the project titled "System for High Efficiency Continuous Single-step Carbon Capture and Mineralization." “The industrial sector currently has few financial incentives to sequester CO₂. The technology will address this gap by reducing the energy and associated costs required for capture and conversion of CO₂, generating revenue through the production of sustainable by-products. The ability to produce valuable co-products will be particularly beneficial to industries reliant on raw materials.”
By deploying CarbonCatalyze™, host industries not only achieve their net-zero targets but also generate additional revenue through the production of valuable co-products, creating financial incentives for the adoption of carbon capture technologies. Learn More
Sustainable Integration with Existing Infrastructure
CarbonCatalyze™ modular units are designed to integrate seamlessly into existing industrial operations, enabling facilities to generate essential chemicals on-site. These units are deployed close to the source, enabling decentralized operation that dramatically shortens transport distances compared to centralized chlorine supply. For host sites, this means a no-cost biogas upgrade, a reduction in feedstock costs, and lower Scope 1 and Scope 3 emissions, without adding operational burden.
Affordability, Reliability and Security
Rushnu delivers a more affordable, reliable, and secure approach to chlorine production through distributed, modular systems that reduce transport risks and strengthen domestic supply chains.
Flexible Business Models Across Industrial Sectors
Rushnu offers flexible deployment models across industrial sectors, delivering modular or large scale systems tailored to each host site’s operational needs while improving cost efficiency, emissions performance, and supply chain resilience.
Closed-Loop Catalyst Regeneration and Reuse
The dual-catalyst system at the heart of CarbonCatalyze™ allows for continuous regeneration of the mineralization catalyst, ensuring efficient and sustainable operation. The secondary catalyst thermally regenerates the primary catalyst, enabling it to be reused with minimal degradation and reducing the need for constant replacement. This closed-loop design minimizes waste and lowers operational costs, making the technology more sustainable and resilient over time.
Adaptable and Scalable Design
CarbonCatalyze™ is modular and scalable, allowing it to be tailored to various industrial settings, from water treatment facilities to steel production plants. Its flexible design enables integration with existing infrastructure, providing industries with an accessible pathway to reduce emissions while producing valuable chemicals on-site. This adaptability supports a range of applications, helping industries achieve their sustainability goals without requiring major capital investments.
"We are thrilled to partner with Rushnu as they embark on proving their technology. This will help SVCW – and the wastewater industry as a whole – achieve our mission of protecting public health and the environment."
SVCW General Manager Teresa Herrera
“Partnering with Rushnu is in line with our Climate Action Plan goals to reduce emissions, support innovative decarbonization technologies, and be a leader in local climate action. We look forward to the impact this project will have on our community and beyond.”
City of Livermore City Manager Marianna Marysheva