Aromatic adsorption desulfurizing method
A technology for adsorption desulfurization and aromatic hydrocarbons, which is used in absorption purification/separation, organic chemistry, etc., to achieve the effect of less investment and simple process
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Embodiment 1
[0016] This example illustrates the preparation of an amorphous adsorbent useful in the present invention.
[0017] Add 48 grams of nickel, 48 grams of aluminum, 1.5 grams of iron, and 2.5 grams of chromium into the quartz tube, heat it in a high-frequency furnace to above 1300 ° C to melt, and alloy it, and then use inert gas to remove the alloy liquid from The nozzle under the quartz tube is sprayed onto a copper roller with a rotating speed of 800 rpm. Cooling water is passed through the copper roller. After rapid cooling, the alloy liquid is thrown out along the tangent of the copper roller to form scale-like strips. After grinding to a particle diameter of less than 70 microns, a master alloy is obtained. The master alloy is heat treated in a hydrogen environment, the heat treatment temperature is 700° C., and the constant temperature time is 3 hours. The heat-treated master alloy was slowly added into a three-neck flask filled with 500 g of 20% sodium hydroxide aqueous ...
Embodiment 2~4
[0019] These examples illustrate the preparation of several adsorbents useful in the present invention.
[0020] The amorphous alloy adsorbent used in the present invention was prepared according to the steps of Example 1, except that the components and contents were different. The compositions of the prepared Adsorbent-2 to Adsorbent-4 are listed in Table 1.
[0021] The adsorbent composition of table 1 embodiment 1~4
Embodiment
[0022] Example number Sorbent number Sorbent composition
[0023] 1 Adsorbent-1 Ni 83.5 Fe 2.6 Cr 4.3 Al 9.6
[0024] 2 Adsorbent-2 Ni 86.7 co 8.3 Al 5.0
[0025] 3 Adsorbent-3 Ni 90.1 Mo 3.2 Al 6.7
[0026] 4 Adsorbent-4 Ni 58.4 Fe 32.3 Al 9.3
[0027] In the X-ray diffraction patterns of Adsorbents-1, -2, -3 and -4, only one broad diffuse peak (steamed bread-like diffuse scattering peak) appears at 45±1° in the range of 2θ of 20-80° .
[0028] The following Examples 5-16 illustrate the results of carrying out the process of the present invention using a fluidized bed.
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