Technology for producing environmentally friendly extruded board using CO2 foaming
CO2 foamed extruded board, fluorine-free emission reduction, reduced cost, efficient and environmentally friendly.
Type
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Solution maturity
Mass promotion / Mass production
Cooperation methods
Applicable industry
Applications
Key innovations
The innovation of this green technology is reflected in the use of supercritical CO2 instead of Freon as a blowing agent for extruded sheets. Through the unique constant pressure pump and multi-stage static mixing process, stable injection of CO2 and efficient foaming are achieved, effectively avoiding high-potential greenhouse gas emissions and reducing carbon emissions by approximately 800,000 tons per year.
Potential economic benefits
This green technology replaces Freon by CO2 foaming, which can save blowing agent costs by 10 million yuan per year. The production cost of environmentally friendly extruded boards is reduced by 70 yuan/m³. At the same time, reducing freon emissions by 450 tons is equivalent to reducing carbon emissions by 800,000 tons, bringing significant environmental benefits and potential carbon trading benefits.
Potential climate benefits
By replacing Freon, a high-potential greenhouse gas with carbon dioxide as a blowing agent, this technology directly avoids the emission of about 450 tons of Freon per year, which is equivalent to reducing carbon emissions by about 800,000 tons. This direct substitution of greenhouse gases is a major carbon-reduction benefit.
Solution supplier
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Ningxia Dingsheng Sunshine Technology Company
Ningxia Dingsheng Sunshine Technology Co., Ltd. is deeply involved in photovoltaic and new energy technologies to provide efficient green energy solutions.
China
Solution details
1. scope of application
Non-toxic and harmless raw materials are replaced.
2. Core technologies and processes
CO2 is stabilized in a supercritical state by a constant pressure pump, CO2 and accelerator are fully mixed in the first static mixer, CO2 is stably injected into the first screw using a high-pressure metering pump and a mass flow meter, and the second static mixer is passed through the mixer, the third static mixer and polystyrene plastic are fully mixed in stages to achieve the goals of stable injection of CO2 and smooth foaming. Since CO2 is used instead of Freon as a blowing agent, emissions of high potential greenhouse gases are avoided, thereby achieving carbon emission reduction.
3. main technical parameters
The compression strength of the CO2 foamed extruded board is ≥ 200kPa; the tensile strength is ≥0.15kPa; the size stability is ≤0.16; and the combustion performance is Class B1.
4. comprehensive benefits
An annual production line of 150,000 cubic meters of CO2 foamed extruded board is produced. Compared with the traditional use of freon foaming, the freon is reduced by about 450 tons/year, which is equivalent to reducing carbon emissions by about 800,000 tons; the production cost of environmentally friendly extruded board is reduced by 70 yuan/m³, saving the cost of blowing agent by 10 million yuan/year.
Last updated
10:27:41, Nov 05, 2025
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