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Catalytic gasoline hydrogenation method

A technology for catalyzing gasoline and gasoline, applied in hydrotreating process, petroleum industry, processing hydrocarbon oil, etc., can solve the problem of not being a low-energy-consumption process, and achieve the effect of reducing fuel consumption, reducing heat load, and avoiding energy input

Active Publication Date: 2017-09-15
PETROCHINA CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method is equivalent to transferring the energy consumption of the gasoline hydrogenation unit to the catalytic unit, and is not a low-energy process in the true sense.

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0036] Catalyzed gasoline A is used as raw material, and its properties are shown in Table 1. The catalyst is commercially available, and its composition is shown in Table 2. The fractional distillation cut point is 70°C. See Table 3 for operating conditions, Table 4 for product properties, and Table 5 for device energy consumption. As can be seen from Table 4, the adoption of this technology can make the sulfur content in the product less than 10ppm, and the octane number loss is 1.0 units. As can be seen from Table 5, the energy consumption of the device is 15.76kgoe / t feed, which is 5.99 units lower than that of Comparative Example 1 Unit, 3.84 units lower than Comparative Example 2.

Embodiment 2

[0038] Catalyzed gasoline B is used as raw material, and its properties are shown in Table 1. The catalyst is commercially available, and its composition is shown in Table 2. The fractionation cut point is 65°C. See Table 3 for operating conditions, Table 4 for product properties, and Table 5 for device energy consumption. As can be seen from Table 4, the adoption of this technology can make the sulfur content in the product less than 10ppm, and the octane number loss is 0.5 units. As can be seen from Table 5, the energy consumption of the device is 14.95kgoe / t feed, which is 6.8 units lower than that of Comparative Example 1 Unit, 4.65 units lower than Comparative Example 2.

Embodiment 3

[0040] Catalyzed gasoline C is used as raw material, and its properties are shown in Table 1. The catalyst is commercially available, and its composition is shown in Table 2. The fractionation cut point is 60°C. See Table 3 for operating conditions, Table 4 for product properties, and Table 5 for device energy consumption. As can be seen from Table 4, the adoption of this technology can make the sulfur content in the product less than 10ppm, and the octane number loss is 1.2 units. As can be seen from Table 5, the energy consumption of the device is 15.32kgoe / t feed, which is 6.43 units lower than that of Comparative Example 1 Unit, 4.28 units lower than Comparative Example 2.

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Abstract

The invention provides a catalytic gasoline hydrogenation method. The catalytic gasoline hydrogenation method comprises the following steps: the whole cut catalytic gasoline (1) enters a pre-hydrogenation reactor (9), and the reaction product enters a fractionating tower (10) for splitting light and heavy fraction gasoline; the heavy fraction gasoline at the bottom of the fractionating tower After heat exchange, it enters the hydrodesulfurization reactor (14), and the reaction product enters the octane number recovery reaction feed heat exchanger (15) after heat exchange and octane recovery feed heating furnace (16). Recovery reactor (17); the reaction product at the outlet of the octane recovery reactor (17) enters the stabilizing tower reboiler (25), and then successively passes through the octane recovery feed heat exchanger (15) and the hydrodesulfurization feed The heat exchanger (13) enters the heat separation tank (18) after heat exchange; the liquid phase at the bottom of the heat separation tank destabilizes the tower (24), and the gas phase at the top of the tank enters the cold separation tank (20) after heat exchange and cooling, and the cold separation tank The bottom liquid phase enters the stabilization tower (24) after heat exchange.

Description

technical field [0001] The invention relates to a catalytic gasoline hydrogenation method. Background technique [0002] In order to improve air quality, further enhance the capability of the vehicle exhaust purification system, and reduce vehicle pollutant emissions, in December 2013, my country issued and began to implement the fifth phase of the National Standard for Motor Gasoline (GB17930-2013). The transition period is until the end of 2017. From January 1, 2018, the national V standard motor gasoline will be supplied nationwide, and the sulfur content is required to be no more than 10ppm. As the main blending component of clean gasoline for vehicles in my country, catalytic gasoline accounts for more than 70% of the gasoline blending pool. Therefore, reducing the sulfur content in catalytic gasoline is the key to the production of ultra-low sulfur gasoline. Catalytic gasoline hydrogenation is a method of hydrotreating catalytic cracked gasoline using fixed bed technol...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G69/02
Inventor 刘传强王国旗夏少青胡耀强刘晓步相春娥王佩瑜刘瑞萍孙嫚
Owner PETROCHINA CO LTD
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