Method for deep desulfurization of gasoline and equipment for deep desulfurization of gasoline
A deep desulfurization and gasoline technology, which is applied in the treatment of hydrocarbon oil, petroleum industry, hydrocarbon oil treatment products, etc., can solve the problems of reduced extraction of sulfide, incomplete regeneration, unfavorable hydrogenation units, etc., and avoid large losses Effect
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Embodiment 1
[0143] This embodiment adopts figure 1 The equipment shown in Table 1 performs advanced desulfurization treatment on the gasoline feedstock A.
[0144]First, the gasoline raw material A is oxidized and deodorized, and oxidized under the action of HUS-C01 oxidative deodorization catalyst, the reaction temperature is 40°C, the pressure is 0.6MPa, and the liquid hourly space velocity is 1.0h -1 , the air injection amount is 2.4 times of the theoretical amount required for oxidizing mercaptan, the oxidation deodorization additive is HUS-P01, and the injection amount of the oxidation deodorization additive is 10 μg / g (compared with gasoline raw material); in the gasoline raw material after oxidation deodorization Mercaptan sulfur content≯5μg / g.
[0145] The aforementioned gasoline raw material after oxidation and deodorization is subjected to fractionation, and the fractionation temperature is 95°C. The yields (by mass fraction) of light fraction and heavy fraction after fraction...
Embodiment 2
[0171] This embodiment adopts figure 1 The equipment shown is for advanced desulfurization of gasoline feedstock E.
[0172] First, the gasoline raw material E is oxidized and deodorized, and oxidized under the action of HUS-C01 oxidative deodorization catalyst, the reaction temperature is 55°C, the pressure is 0.6MPa, and the liquid hourly space velocity is 1.2h -1 , the air injection amount is 2.4 times of the theoretical amount required for oxidizing mercaptan, the oxidation deodorization additive is HUS-P01, and the injection amount of the oxidation deodorization additive is 10 μg / g (compared with gasoline raw material); in the gasoline raw material after oxidation deodorization The mercaptan sulfur content is ≯5μg / g.
[0173] The aforementioned oxidatively deodorized gasoline feedstock was fractionated at a cut point temperature of 120°C to obtain a light fraction with a yield of 60% by weight and a heavy fraction with a yield of 40% by weight.
[0174] In the solvent e...
Embodiment 3
[0188] This embodiment is carried out with the same raw material oil E and the same combined desulfurization process and the same process parameters as in Example 2, the difference is:
[0189] The extraction solvent used in the solvent extraction process of this example does not contain additives, and the rest are the same as in Example 2. As a result, the sulfur content in the light fraction after solvent extraction is ≯10 μg / g.
[0190] After selective hydrogenation, the hydrogenated heavy fraction is obtained, and the sulfur content in the hydrogenated heavy fraction is ≯10 μg / g.
[0191] Mix the light distillate after solvent extraction with the heavy distillate after hydrogenation to form low-sulfur gasoline product H; or mix the light distillate after etherification with the heavy distillate after hydrogenation to form low-sulfur, low-olefin gasoline product I.
[0192] The properties of gasoline product H and gasoline product I are shown in Table 4.
[0193] It can be...
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Abstract
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