Method for preparing hydrogenated C9 petroleum resin
A technology for petroleum resin and resin, applied in the field of preparing hydrogenated C9 petroleum resin, can solve the problems of poor economic benefit and low product grade, and achieve the effects of improved catalyst life, wide range of raw materials and less reduction
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[0023] Example 1: Using zinc nitrate and nickel nitrate as precursors, a co-precipitation method was used to prepare NiO / ZnO with different Ni loadings. The NiO / ZnO was reduced at 350° C. for 2 hours to prepare a Ni / ZnO catalyst. See Table 1 below for the properties of raw materials and the effect of hydrogenation adsorption desulfurization with different Ni loadings. The reaction conditions are the feed temperature of 260℃, the hydrogen partial pressure of 1MPa, and the volumetric space velocity of 6h. -1 , The volume ratio of hydrogen to oil is 200:1, and the resin concentration is 20%. See Table 1 below for resin raw materials and resin properties after hydrogenation adsorption desulfurization.
[0024]
[0025] ① Chromaticity measurement is to compare the color of resin with 50wt% toluene solution and standard Fe-Co colorimetric solution.
[0026] It can be seen from Table 1 that using Ni / ZnO as the hydrogenation adsorption desulfurization catalyst, the desulfurization effect i...
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[0027] Example 2: Using 20% Ni loading Ni / ZnO as the hydrogenation adsorption desulfurization catalyst, the effect of reaction conditions on the desulfurization effect was investigated. See Table 2 below for resin properties after desulfurization.
[0028]
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[0029] Example 3: Using 20% Ni loading Ni / ZnO as the hydrogenation adsorption desulfurization catalyst, the reaction conditions are feed temperature 260°C, hydrogen partial pressure 1MPa, volumetric space velocity 6h -1 , The volume ratio of hydrogen to oil is 200:1, and the resin concentration is 20%. Table 3 below shows the product properties obtained after 100 hours of operation.
[0030]
[0031] It can be seen from Table 3 that the 100-hour experimental results show that the sulfur and bromine values on the Ni / ZnO reaction adsorption desulfurization catalyst are basically unchanged compared with the initial test, indicating that this technology has good stability. After running for the last time, the sulfur adsorption capacity of the catalyst reaches 20% of the weight of the catalyst.
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