Device for alkylate oil synthesis
An alkylated oil and reactor technology, applied in the direction of hydrocarbons, hydrocarbons, petroleum industries, etc., can solve the problems affecting the quality of alkylated oil, increase the size of the reactor, limit the reaction rate, etc., and achieve good acidity. The effect of hydrocarbon contact, the reduction of the production of reaction by-products, the effect of accelerating the reaction rate
Active Publication Date: 2015-10-28
TIANJIN UNIV
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Problems solved by technology
At present, two main sulfuric acid alkylation processes are the effluent refrigeration type sulfuric acid alkylation reaction process of Stratco Company of the United States and the step reactor sulfuric acid alkylation process of Kellogg Company of the United States. The degree of acid hydrocarbon exposure, which greatly limits the reaction rate and increases the reactor size
In addition, the sulfuric acid alkylation process is still a strong exothermic reaction, and the increase in reaction temperature will increase the by-products and affect the quality of alkylated oil.
Method used
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Embodiment 1
[0015] Taking the small-scale experimental device as an example, the diameter of the main body of the reactor is 200mm, the height is 2000mm, the height of the packing layer is 1200mm, and the ring-shaped saddle is used for packing, and the mist catcher is a wire mesh mist catcher. Isobutane and olefins enter the packing layer from the reactant feed port through the liquid distributor, the feed rate is 100L / h, the feed temperature is 0°C, the pressure is the saturated vapor pressure at 0°C of 156.45kPa, and the concentrated sulfuric acid is fed through the concentrated sulfuric acid. The feed port enters until the entire packing layer is submerged, and then the flow rate of the inlet and outlet of concentrated sulfuric acid is adjusted to 1.5L / h to maintain the concentration of concentrated sulfuric acid in the entire reactor as 95%. The isobutane gas is discharged from the gas phase outlet, and the reaction product alkylate and unvaporized isobutane are discharged from the liq...
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The invention discloses a device for alkylate oil synthesis. The device comprises a reactor body 1. A reactant feed port 9 is formed in the bottom of the reactor body, a concentrated sulfuric acid feed port 8 is formed in the lower portion of the reactor body, a sulfuric acid discharge port 3 is formed in the middle of the reactor body, a liquid phase discharge port 7 is formed in the upper middle portion of the reactor body, a gas phase discharge port 6 is formed in the top of the reactor body, a packing layer 2 is arranged at the lower middle portion of the reactor body, the upper surface of the packing layer is located between the sulfuric acid discharge port 3 and the liquid phase discharge port 7, the lower surface of the packing layer is located between the concentrated sulfuric acid feed port 8 and the reactant feed port 9, a liquid distributor 11 is arranged below the packing layer, the reactant feed port 9 is connected with the liquid distributor 11 through a pipeline, and the reactor body is internally provided with a foam catcher 4. The device has a better acid hydrocarbon contact effect, the alkanes ene ratio is reduced while the reaction speed is increased, the reaction temperature can be strictly controlled, reaction by-products are reduced, and therefore the yield and quality of alkylate synthetic oil are improved, and the energy consumption can be reduced.
Description
technical field [0001] The invention relates to chemical industry, and petrochemical industry requires a reactor with good contact between two phases, in particular to a device for synthesis of alkylated oil. Background technique [0002] The industrial isooctane produced by the alkylation reaction of C4 olefins and isobutane is a blending component of high-octane gasoline with various trimethylpentane as the main component. Industrial isooctane has a high octane number and combustion The advantages of less harmful products and lower vapor pressure. Alkylation reaction can be divided into sulfuric acid alkylation process and hydrofluoric acid alkylation process according to the catalyst used. Hydrofluoric acid is a volatile and highly toxic chemical. Once leaked, it will cause serious harm to the environment and production. The main disadvantage of the sulfuric acid alkylation process is the large discharge of waste acid. The sulfuric acid alkylation process is mostly used...
Claims
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Login to View More IPC IPC(8): C10G50/00C07C2/62C07C9/16
Inventor 张敏卿张金利徐钦李文鹏
Owner TIANJIN UNIV