en.Wedoany.com Reported - New York-based startup Cella has completed a field trial of carbon dioxide mineralization storage in Kenya's Central Rift Valley. The company employed a water-alternating-gas injection process similar to enhanced oil recovery techniques, injecting pure-phase carbon dioxide into basalt formations to achieve permanent mineralization storage.

Compared to traditional mineralization technologies, Cella's method significantly reduces water consumption and lowers storage costs. Cella has become the second team globally to achieve pure-phase CO₂ injection into reactive rocks for mineralization storage, and the first private enterprise to complete such a demonstration.

Cella's technical pathway closely resembles the water-alternating-gas injection process widely adopted in the global oil and gas industry. In a recent pilot test conducted in Kenya, the team injected 460 kilograms of carbon dioxide into a basalt formation at a depth of approximately 2,800 feet, with a water-to-gas ratio controlled at 10:1. In comparison, a similar mineralization project in Iceland requires approximately 25 tonnes of water for every tonne of CO₂ dissolved. Cella co-founder and CTO Claire Nelson stated that by optimizing injection cycles and timing, operators can achieve rapid mineralization while using less water and injecting more CO₂, thereby significantly improving injection efficiency and reducing total project costs.

Cella stated that the company is not trying to compete with large-scale carbon capture and storage hubs, but rather seeks to fill a market gap. Cella's goal is to prove that as long as storage sites can be built on-site next to emission sources, enterprises do not need to invest huge sums in infrastructure. The company believes its technology is particularly well-suited for addressing dispersed, small-to-medium-sized carbon emission sources.

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