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Desulphurization method by irradiating oil with high-energy electron beam

A high-energy electron beam and irradiation technology, applied in the direction of electro/magnetic refining, etc., can solve the problems that have not been reported and researched, and achieve the effects of improving product quality, reducing environmental pollution, and low operating costs

Inactive Publication Date: 2009-11-25
江苏久瑞高能电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are no relevant reports and researches on the technology of irradiating desulfurization of oil products with high-energy electron beams.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Example 1: The diesel oil obtained by catalytic cracking is pumped into the irradiation reactor at room temperature. At this time, the air irradiated by high-energy electron beams is evenly dispersed in the form of bubbling from the bottom of the irradiation reactor through a disperser. In the oil, the upper outlet of the irradiation reactor is connected with a condensing device, evacuated, the oil-gas ratio is 1:1, and the high-energy electron beam (1.5 Mev) irradiates the oil and air, and the internal pressure of the irradiation reactor is 1.05 Atm, the absorbed dose rate of the oil in the irradiation reactor is 2kGy / s, and the absorbed dose is 20kGy. The condition of air irradiation is that the absorbed dose rate is 5kGy / s, and the absorbed dose is 20kGy. Then take 50% ethanol solution to extract according to the ratio of oil to solvent 1:1. The desulfurization rate of the oil was measured by the mercaptan content in the oil. The results showed that after irradiatio...

Embodiment 2

[0021] Embodiment 2: The gasoline obtained by catalytic cracking is pumped into the inlet of the irradiation reactor at room temperature, mixed with the air irradiated by the high-energy electron beam at the inlet, passed through the atomizing nozzle, and treated in the irradiation reactor. The oil is atomized and the irradiation reactor is irradiated at the same time. The outlet of the upper part of the irradiation reactor is connected with a condensing device and evacuated. The oil-gas ratio is 1:3, and the high-energy electron beam (0.8 Mev) irradiates the oil and air. The pressure inside the irradiation reactor is 1.1atm, and the absorbed dose rate of the oil in the irradiation reactor is 2kGy / s. The dose is 18kGy. The condition of air irradiation is that the absorbed dose rate is 6kGy / s, and the absorbed dose is 18kGy. Then take 50% ethanol solution to extract according to the ratio of oil to solvent 1:1. The desulfurization rate of the oil was measured by the mercapta...

Embodiment 3

[0022] Example 3: The diesel oil obtained by catalytic cracking is pumped into the irradiation reactor at 50°C, and the air irradiated by high-energy electron beams is evenly distributed in the form of bubbling from the bottom of the irradiation reactor through a disperser. Dispersed in oil, the outlet of the upper part of the irradiation reactor is connected with a condensing device, evacuated, the ratio of oil to air is 1:2, and self-made loaded Mn is added to the oil 2 o 3 -Al 2 o 3 Catalyst, the ratio of catalyst to oil is 5:100, high-energy electron beam (1.5Mev) irradiates oil and air, the pressure inside the irradiation reactor is 1.05atm, the absorbed dose rate of oil in the irradiation reactor It is 3kGy / s, and the absorbed dose is 15kGy. The condition of air irradiation is that the absorbed dose rate is 5kGy / s, and the absorbed dose is 25kGy. Then take 50% ethanol solution to extract according to the oil agent ratio of 1:1, and measure the desulfurization rate of...

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PUM

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Abstract

A desulfurization method for irradiating oil products with high-energy electron beams, characterized in that it has the following steps: a. using high-energy electron beams to irradiate air to make the air contain high-concentration ozone; b. The air is input into the irradiation reactor and fully contacted with the oil; c. The oil and air are irradiated with high-energy electron beams, and the ozone in the air causes the organic sulfur in the oil to oxidize and is oxidized into sulfones , Sulfur-containing organic compounds of sulfoxides and sulfonic acids. The technology of the invention is simple, and only needs to set the main process of irradiation; the total initial investment is small, and the energy consumption is low, and the operating cost is far lower than the existing technology, which is beneficial to environmental protection and can greatly reduce environmental pollution, and It will not cause secondary pollution; the sulfur content in the oil can be reduced to a greater extent by adding the type and quantity of auxiliary components, and the product quality can be improved.

Description

technical field [0001] The invention relates to a desulfurization method for oil products, in particular to a desulfurization method for irradiating oil products with high-energy electron beams, which belongs to the application category of civil non-power nuclear technology in the petrochemical field. Background technique [0002] Petroleum products contain sulfur in varying degrees, and the hazards of sulfur are manifold. The sulfur content of petroleum products not only affects the existing refining process (such as equipment anti-corrosion, catalyst performance, etc.), the quality and performance of oil products (such as stability, etc.), but also in recent years, the number of cars has increased, and the exhaust gas emissions have also increased. Due to The acid rain caused by sulfur in oil products has gradually affected the living environment of human beings, so people must constantly seek better desulfurization methods. [0003] The sulfur content of my country's cru...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G32/02
Inventor 冯敬涛霍春生蔡雄辉
Owner 江苏久瑞高能电子有限公司