Active carbon propane adsorbent as well as preparation method and application thereof
A technology of adsorbent and activated carbon, which is applied in the field of activated carbon propane adsorbent and its preparation, can solve the problems of small air mobility and serious accumulation of pollutants, and achieve the effects of simple operation, high adsorption capacity, and low cost
Inactive Publication Date: 2014-08-20
SHANGHAI NAT ENG RES CENT FORNANOTECH
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Problems solved by technology
Especially in semi-enclosed spaces such as underground parking lots and tunnels, the air mobility is small and pollutants accumulate seriously, and the governance problems need to be solved urgently
Method used
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Embodiment 1
[0024] 6.0 g of coconut shell activated carbon, purchased from Guanghua Jingke Environmental Protection Technology Co., Ltd., was added to 120 mL of 8 mol / L hydrofluoric acid solution, and hydrothermally treated at 150 °C for 24 h. Wash with deionized water until neutral, dry at 100°C, and record as AC-Y-HF-1.
Embodiment 2
[0026] 6.0g of coconut shell activated carbon, purchased from Guanghua Jingke Environmental Protection Technology Co., Ltd., was added to 120mL of 8mol / L hydrofluoric acid solution, and hydrothermally treated at 180°C for 7 days. Wash with deionized water until neutral, dry at 100°C, and record as AC-Y-HF-2.
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Abstract
The invention discloses an active carbon propane adsorbent as well as a preparation method and application thereof. The preparation method of the active carbon propane adsorbent comprises the following steps: immersing cocoanut active charcoal in 5-22mol / L of hydrofluoric acid solution, putting the solution in a hydrothermal reaction kettle, carrying out hydrothermal treatment for 1-7 days at the temperatures of 120-180 DEG C, and washing and drying to obtain the active carbon propane adsorbent. As a purification material, the active carbon propane adsorbent has the characteristics of relatively high purification efficiency with low-concentration HC (Hydrocarbon), relatively low cost, simple preparation process and the like; the highest propane purification efficiency of the material reaches more than 99% at the normal temperature and pressure under the conditions that the propane concentration is 20ppm and the space velocity is 50000mL / (g.h); the adsorption capacity can reach 2.0mlC3H8 / gAC.
Description
technical field [0001] The invention relates to the technical field of adsorption materials, in particular to an activated carbon propane adsorbent and its preparation method and application. Background technique [0002] At present, the problem of motor vehicle pollution in my country is becoming more and more prominent, and exhaust emissions have become the main source of air pollution in my country, and are an important cause of haze and photochemical smog pollution. Especially in semi-enclosed spaces such as underground parking lots and tunnels, the air flow is small and pollutants accumulate seriously, and the governance problems need to be solved urgently. [0003] Motor vehicle exhaust emissions are mainly PM (particulate matter), CO, NO x and HC (hydrocarbons), among which HC is the most difficult to treat due to its physical and chemical inertness. At present, there are mainly two methods: adsorption and catalysis. Considering the relatively low concentration of H...
Claims
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IPC IPC(8): B01J20/20B01J20/30B01D53/02
Inventor 何丹农赵昆峰高振源董亚梅王婷
Owner SHANGHAI NAT ENG RES CENT FORNANOTECH