Developing advanced technologies to accelerate carbon neutrality and circularity
We provide innovative separation and catalyst technologies that help accelerate decarbonization, carbon reduction, resource recycling, and circular economy initiatives across a wide range of industrial processes, including semiconductor manufacturing, petrochemicals, energy, and beverage production.
CO₂ Separation Membrane, Solvent Separation Membrane
Nitto has developed a compact, modular membrane-based carbon capture technology that efficiently captures CO₂ from small to mid-sized exhaust sources, demonstrated in a pilot project using boiler exhaust gas.
This CCUS technology adds to the suite of solutions helping drive progress toward net‑zero emissions by 2050.
Reducing CO₂ emissions is one of the world's most pressing challenges. Nitto's membrane technology enables efficient CO₂ capture from industrial combustion flue gas and other emission sources, helping customers advance Carbon Capture, Utilization and Storage (CCUS) initiatives and accelerate their decarbonization goals.
Compared with conventional chemical absorption processes, Nitto's membrane technology offers:
Nitto has been developing membrane technologies through decades of experience in water treatment. Because CO₂ and N₂ molecules are similar in size, conventional molecular sieving has limited effectiveness. Nitto's proprietary membrane selectively separates CO₂ based on its affinity with the membrane, enabling efficient CO₂ capture from industrial gas streams.
Nitto is conducting CO₂ separation testing at its Shiga plant in Japan, a key manufacturing base which supports Nitto's membrane manufacturing. The pilot demonstration system separates low concentrations of CO₂ contained in the combustion exhaust gases emitted from a boiler unit at the production plant. The demonstration equipment consists of eight-inch size elements, heat exchangers for cooling gases and a vacuum pump to power the separation process.
Nitto designed its own proprietary CO₂ capture simulation software. Based on the site-specific flue gas emission conditions, such as CO₂ content and flow rate as well as the target gas separation objectives, i.e., CO₂ permeate purity and recovery rate, the carbon capture performance can be assessed.
Nitto is developing an advanced membrane system for solvent recovery and recycling from wastewater generated in semiconductor manufacturing and other industries. Through pilot testing using actual wastewater from semiconductor fabs, we are evaluating the technology for commercial-scale implementation.
Semiconductor manufacturing consumes large amounts of water, creating challenges in wastewater treatment and resource recovery. Nitto's solvent separation system regenerates wastewater while recovering and concentrating solvents, reducing waste disposal costs and promoting water and solvent recycling.
Our Membrane Products can be found here.
Unlike conventional RO membranes, Nitto's solvent-selective membrane efficiently separates and concentrates IPA and other solvents from wastewater. By combining water treatment and solvent separation membranes, we provide optimized recycling solutions for a wide range of wastewater conditions.
*IPA: Isopropyl Alcohol
Pilot tests using actual wastewater from Nitto facilities and semiconductor fabs have confirmed the target performance. Nitto is now working toward commercializing the system.
Through joint research with an overseas academic institution, Nitto has established a unique CO₂ conversion catalyst technology.
Nitto has launched an initiative to produce green formic acid from biomass-derived CO₂.
This effort aims to introduce of carbon-negative formic acid for the livestock industry.
Reference: https://www.nitto.com/jp/en/press/2023/1219_02.jsp
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