Because of these pores, especially the micropores provide a large surface area.
The pore volume of activated carbon micropores is generally only 0.25-0.9mL/g, the number of pores is about 1020 lg, and the surface area of all micropores is about 500-1500m2/g, which is usually measured by the BET method, and it is also said to be as high as 3500-5000 m2/g.
Activated carbon almost more than 95% of the surface area is in the micropore, so in addition to some macromolecules can not enter, micropore is an important factor to determine the adsorption performance of activated carbon.The pore volume of mesopores is generally about 0.02-1.0 MLLg, and the surface area can be up to several hundred square meters, generally only about 5% of the total activated carbon silkworm species.Its function can adsorb steam, and can provide a channel for adsorbent to enter the micropore, and can directly adsorb larger molecules.
The pore volume of the macropore is generally about 0.2-0.5mL /g, and the surface area is only about 0.5-2m2 /g. Its role is to make the adsorbate molecules quickly penetrate into the smaller pores inside the activated carbon.as a catalytic carrier, the catalyst is often a small amount of precipitation in the micropore, mostly precipitation in the macropore and mesopore.
The surface area of the activated carbon should include the inner surface area and the outer surface area. In fact, the adsorption properties mainly come to the inner surface area of the white Li large, so it can not be mistaken for: the activated carbon grinding and grinding will significantly improve the surface area to improve the adsorption force.In this paper, the basic principles of four oil and gas recovery technologies such as adsorption method, condensation method, absorption method and membrane separation method are described, and the oil and gas recovery technology based on adsorption method is systematically analyzed.A kind of activated carbon material suitable for oil and gas recovery system by adsorption method was selected according to the design requirements.
The main equipment of oil and gas recovery system by activated carbon adsorption method, the activated carbon tank, is designed and calculated, and its strength is checked.
https://www.wyactivatedcarbon.com/products/powdered-activated-carbon/The flowchart of the oil and gas recovery system by activated carbon adsorption in the laboratory of Environmental Engineering Department is also drawn, and the system is simulated in three dimensional.Finally, the economic and technical analysis of activated carbon oil and gas recovery technology is carried out, and it is considered that the application of activated carbon adsorption oil and gas recovery system will bring obvious social benefits, environmental benefits and economic benefits, and has a wide application prospect.
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