ADSORPTION EFFICIENCY ANALYSIS OF ACETONE-BASED CARBON DIOXIDE CAPTURING MATERIAL

With the increasing global attention to carbon emissions, carbon dioxide capture technology has become one of the important means to achieve the goal of carbon neutrality. Among them, acetone-based carbon dioxide capture materials have gradually become a research hotspot because of their high efficiency and adjustability. In this paper, the adsorption efficiency of acetone-based carbon dioxide capture materials will be analyzed in detail from the aspects of adsorption mechanism, influencing factors and optimization strategies.

Acetone-based Carbon Dioxide Capture Materials

The acetone-based carbon dioxide capturing material generally refers to a porous material based on acetone, such as an acetone-based porous organic polymer or a functionalized carbon-based material. These materials have rich pore structure and large specific surface area, which can capture carbon dioxide by physical adsorption or chemical adsorption.

In the adsorption process, the pore structure of acetone-based materials plays a key role. The reasonable distribution of macropores, mesopores and micropores can improve the diffusion rate of gas and increase the capture capacity. Chemical functionalization of the surface of the material, such as the introduction of acidic or basic groups, can enhance the chemisorption of carbon dioxide.

Main Factors Affecting Adsorption Efficiency

1. pore structure The pore structure is the core factor that determines the adsorption efficiency. The larger the specific surface area of the material, the more reasonable the pore distribution and the higher the adsorption efficiency. For example, acetone-based materials with a hierarchical pore structure can effectively reduce the transport resistance of gas molecules, thereby increasing the capture rate.

2. surface chemical properties The chemical functionalization of the material surface has a significant effect on its adsorption performance. By introducing a specific functional group (such as carboxyl group, amine group or ketone group), the interaction between the material and carbon dioxide molecules can be enhanced, thereby improving the chemical adsorption efficiency.

3. Humidity and temperature Humidity and temperature are important environmental factors that affect the adsorption efficiency. In a high humidity environment, water vapor will competitively occupy the active sites of the material, reducing the adsorption capacity of carbon dioxide. An increase in temperature usually reduces the adsorption efficiency because gas molecules are more easily desorbed at high temperatures.

4. Cycle stability The recycling performance of acetone-based materials is also an important index to evaluate the adsorption efficiency. The physical and chemical properties of the material will change significantly after multiple adsorption-desorption cycles, which directly affects its practical application value.

Optimization Strategy for Improving Adsorption Efficiency

1. Optimization of pore structure design By regulating the synthesis conditions of acetone-based materials (such as the concentration of crosslinking agent, the type of template, etc.), the pore structure of the material can be controlled to make it more conducive to the adsorption of carbon dioxide.

2. functional surface modification The introduction of highly efficient capture groups (such as amino or carboxyl groups) on the surface of the material can significantly improve its chemical adsorption capacity for carbon dioxide. The effect of water vapor can also be reduced by introducing hydrophobic groups.

3. Development of new acetone-based materials Researchers are exploring new acetone-based materials, such as combining nanomaterials with acetone-based materials to improve their mechanical strength and adsorption properties.

4. Optimized operating conditions In practical applications, the adsorption efficiency of acetone-based materials can be further improved by regulating the pressure, temperature and humidity during the adsorption process.

Application Prospects of Acetone-based Carbon Dioxide Capture Materials

Acetone-based carbon dioxide capture materials have broad application prospects in industrial waste gas treatment, carbon capture and storage (CCUS) and other fields. Especially in high-emission enterprises such as thermal power plants and chemical plants, acetone-based materials can help achieve emission reduction targets by efficiently capturing carbon dioxide.

With the deepening of research, the adsorption efficiency of acetone-based materials is expected to be further improved. In the future, through material modification and process optimization, acetone-based carbon dioxide capture materials will play a more important role in achieving carbon neutralization goals.

The adsorption efficiency of acetone-based carbon dioxide capture materials is affected by many factors, including pore structure, surface chemical properties, environmental conditions, etc. By optimizing these factors, the adsorption efficiency can be significantly improved, which provides technical support for the efficient capture and utilization of carbon dioxide. With the deepening of research, the application prospect of acetone-based materials in the realization of carbon neutralization target will be more broad.