Supercritical water technology is one of the most advanced technologies for environmental protection. It utilizes water in a state exceeding the critical temperature (374°C) and critical pressure (22.1 MPa). In this state, water has both gaseous and liquid properties and exhibits high dissolution capacity.
Properties and Applications
- Waste treatment
- Completely decomposes hazardous substances such as dioxins and chlorofluorocarbons.
- Safe and highly efficient disposal method with low risk of secondary contamination.
- Chemical recycling of plastics
- Efficiently decomposes plastics and recovers monomers without the need for a catalyst.
- Reduces environmental impact and promotes recycling.
- Biomass Processing
- Biomass is hydrolyzed in a high-temperature, high-pressure environment to efficiently extract valuable substances.
Specific Examples
Organo Corporation operates a supercritical water oxidation system in Muroran City, Hokkaido, in collaboration with Nippon Steel Works, Ltd . This equipment, which decomposes hazardous substances with low environmental impact, is considered an important technology for realizing a sustainable society.
The global market for supercritical water technology is projected to grow at a compound annual growth rate (CAGR) of approximately 7% from 2020 to 2027. This growth is driven by increasing environmental protection regulations and growing demand for sustainable technologies.
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