Against the backdrop of global response to climate change, the separation, recovery and comprehensive utilization of carbon dioxide have become the focus of attention from all walks of life. Carbon dioxide has a wide range of sources, and hydrogen production in chemical plants, ore decomposition, and emissions from many industries are all important sources.
Carbon dioxide separation and recovery technologies
1. Physical absorption method: It refers to the use of organic solvents for separation under pressure according to the different solubility of the components, absorbing and removing acid gas components, and regenerating the solvent by lowering the pressure. The key to applying this method is to select a high-quality absorbent, and the quality standards are high boiling point, large CO2 solubility, non-corrosive, non-toxic, and stable chemical properties.
2. Chemical absorption method
This method mainly relies on the chemical reaction between the absorbent and CO2. After a series of reactions, the absorbent in the absorption tower and the CO2 in the raw gas will be enriched with a large amount of CO2 centered on the absorption solvent. After the formation of this rich liquid, it will be heated in the analysis tower and finally decomposed to release CO2.
3. Membrane separation method
The realization of membrane separation technology mainly depends on the different permeabilities of different compositions through polymer membranes. When facing gas crossing, the film made of polymer materials will achieve gas separation according to the difference in permeability.
4. Pressure swing adsorption separation method
This method is that the adsorbent has different adsorption force, adsorption rate and adsorption driving force when facing different gases, and the change of pressure value will cause the adsorption capacity to fluctuate. These characteristics are used to give pressurized treatment to achieve adsorption separation of mixed gases, and then the adsorbent is regenerated by lowering the pressure value. In this way, the gas can be separated and the adsorbent can be used cyclically.
5. Desulfurization and dehydrogenation cryogenic distillation method
The key to the production of liquid CO2 process technology in this method is to purify CO2 gas, completely remove H2O, H2S and hydrocarbon impurities, and turn the raw gas into high-concentration CO2 gas. The process flow of purifying CO2 gas is relatively complex and the technical difficulty is relatively high.
Comprehensive utilization of carbon dioxide
In the field of comprehensive utilization of carbon dioxide, its application range covers many important industries such as chemical production, gas fertilizer, beer and beverage, food industry and medical field, and it has played an irreplaceable role in promoting the development of various industries.
Among many companies dedicated to CO2 treatment, NEWTEK has performed well as a professional CO2 plant supplier. Adhering to the concept of recyclability and environmental protection, NEWTEK has built a series of CO2-related product plants, such as Co2 Recycling Plant, Co2 Processing Plant, Co2 Factory, etc. These plants can help mitigate climate change and play a positive role in supporting the development of renewable energy and improving industrial and economic benefits.
Our factory products
With rich experience in designing, building and selling more than 2,500 air separation units worldwide, and strong strength in owning or operating more than 1,500 plants in more than 50 countries, NEWTEK has implemented strict quality control measures and passed ISO 9001:2015 and CE certification, setting an industry benchmark for global CO2 treatment and comprehensive utilization, and leading the new trend of green technology development. It is believed that with the promotion of companies such as NEWTEK, CO2 will be transformed from an environmental challenge into an important opportunity for sustainable development, helping the world move towards a greener and low-carbon future.
