A kind of processing method of phenolic oil in coal tar and a kind of processing method of coal tar
A processing method and technology for coal tar, which are applied in the processing of coal tar and the processing of phenol oil in coal tar, can solve problems such as hidden dangers of environmental pollution, aggravate the burden on enterprises, etc., so as to avoid deoxygenation conversion, clean utilization, and increase added value. Effect
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Embodiment 1
[0078] The desulfurization catalyst used in this example was prepared by the following method.
[0079] Weigh 90g of zinc oxide, 10g of aluminum oxide and 3g of scallop powder and mix them evenly on the extruder, then add 100mL of 3% by weight HNO 3 Aqueous solution, kneaded for 40 minutes and extruded to obtain ZnO-Al 2 o 3 Formed body. ZnO-Al 2 o 3 The molded body was dried at 120°C for 6h, and then fired at 400°C for 6h in an air atmosphere to obtain strip-shaped ZnO-Al 2 o 3 Carrier (with the ZnO-Al 2 o 3 The total amount of carrier is the basis, the content of ZnO is 90% by weight, Al 2 o 3 The content is 10% by weight), its diameter is about 1.5mm, and its length is 3-4mm.
[0080] Dissolve 4.95g of nickel nitrate hexahydrate in 8mL of deionized water, and impregnate 20g of strip-shaped ZnO-Al with the resulting aqueous solution at room temperature (about 25°C) 2 o 3 Carrier, after stirring for 0.5h, dry it at room temperature (about 25°C), then dry it at 120...
Embodiment 2
[0105] Preparation of the desulfurization catalyst used in this example
[0106] The desulfurization catalyst was prepared by the same method as in Example 1, except that 8.91g of nickel nitrate hexahydrate was dissolved in 6.7mL of deionized water, and after stirring evenly, 20g of strip-shaped ZnO-Al was added 2 o 3 carrier to obtain a desulfurization catalyst (theoretical loading of nickel element is 8.2% by weight).
[0107] The adsorptive denitrification agent used in this example is a macroporous strongly acidic cation exchange resin (0.4-1.25mm in particle size) purchased from Nankai University Chemical Plant, model NKC-9, and the following method is used for decolorization before use.
[0108] Soak the macroporous strongly acidic cation exchange resin with warm water at 50°C (the volume ratio of macroporous strongly acidic cation exchange resin to warm water is 1:5), and stir during the soaking. Filter and wash after soaking is completed, until the filtrate is colorl...
Embodiment 3
[0116] The phenol-containing oil fraction was processed in the same manner as in Example 2, except that the phenol-containing oil fraction was sequentially subjected to adsorption denitrification, desulfurization and etherification, wherein the conditions of each step were the same as in Example 2. During the etherification process, the yield of high-octane components was stable at 77.5 mol%, and the composition of the finally obtained upgraded oil is listed in Table 3.
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