Deep desulfurization method of gasoline by catalysis of Ni-containing catalyst

A deep desulfurization and catalytic gasoline technology, which is applied in the petroleum industry, hydrocarbon oil treatment, hydrotreating process, etc., can solve problems such as unseen, unqualified mercaptan sulfur, and failure to meet technical requirements, so as to reduce the severity of the reaction , Octane number loss optimization, hydrogen consumption optimization effect

Inactive Publication Date: 2015-05-27
PETROCHINA CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its advantage is that it does not need fractional distillation to process full-fraction FCC gasoline. The disadvantage is that most of the residual sulfides in the final product are mercaptan sulfur compounds, which leads to unqualified mercaptan sulfur in the product
Its disadvantage is that it cannot meet the technical requirements of refineries to produce clean gasoline with a sulfur content of ≯10μg / g
[0008] To sum up, from the retrieval of patent documents, the currently researched and applied gasoline hydrodesulfurization technology is mainly used to produce products with a sulfur content of ≯150μg / g, but no products with a sulfur content of ≯10μg / g have been seen. technology reports

Method used

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  • Deep desulfurization method of gasoline by catalysis of Ni-containing catalyst

Examples

Experimental program
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Effect test

Embodiment 1

[0031] Weigh 100g of pseudo-boehmite, add 2g of fenugreek powder, then add 3% nitric acid aqueous solution, knead and extrude, dry at 120°C for 4h, and then roast at 650°C for 4h to obtain the catalyst carrier. Test the water absorption of the carrier according to the conventional method, and then prepare the active component impregnation solution according to the water absorption of the carrier according to the equal volume impregnation method. First weigh 45ml of ammonia water, then add 54g of nickel nitrate and stir until dissolved, and finally dilute with ammonia water. The carrier was impregnated by the equal volume impregnation method, so that the catalyst carrier fully absorbed the impregnation solution of the active component, and then placed for 12 hours, the catalyst was dried at 120°C for 4 hours, and then calcined at 600°C for 4 hours to obtain the catalyst sample Cat-1#.

Embodiment 2

[0033] According to the preparation method of the carrier in Example 1, 100 g of the catalyst carrier was prepared, and then the active component impregnation solution was prepared, and the preparation method was the same as that of Example 1. First weigh 50ml of ammonia water, then add 32g of nickel acetate and stir until dissolved, and finally dilute with ammonia water. The impregnation method, drying and roasting conditions of the metal active components were the same as in Example 1, and the catalyst sample Cat-2# was obtained.

Embodiment 3

[0035] According to the preparation method of the carrier in Example 1, 100 g of the catalyst carrier was prepared, and then the active component impregnation solution was prepared, and the preparation method was the same as that of Example 1. First weigh 40ml of ammonia water, then add 38g of nickel acetate and 40g of nickel nitrate and stir until dissolved, and finally use ammonia water to make up the volume. The impregnation method, drying and roasting conditions of the metal active components were the same as in Example 1, and the catalyst sample Cat-3# was obtained.

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Abstract

The invention relates to a deep desulfurization method of gasoline by catalysis of a Ni-containing catalyst. According to the deep desulfurization method, a gasoline raw material enters a first reactor to undergo selective hydrodesulfurization, and then deep desulfurization is further carried out in a second reactor. A hydrodesulfurization catalyst adopted in the second reactor is the Ni-containing catalyst. The catalyst has a certain desulfurization activity. Meanwhile, olefin saturation is little. After combination with the first reactor and when deep desulfurization is further realized, reaction severity of the first reactor can be remarkably reduced, and octane loss and hydrogen consumption are optimized.

Description

technical field [0001] The invention relates to a method for deep desulfurization of gasoline, in particular to a method for adding a second hydrodesulfurization reactor after the first hydrodesulfurization reactor for gasoline deep desulfurization. Background technique [0002] Petroleum is one of the most important energy sources and has become the "blood" of today's world economic development. With the rapid development of the global economy, car ownership is increasing day by day. As of September 2011, the number of cars in the world has exceeded 1 billion, and the number of cars in my country has also exceeded 100 million for the first time. Automobile exhaust has become the main source of air pollution in many cities, seriously affecting people's production, life and health. At present, environmental protection laws and regulations are becoming increasingly stringent, countries all over the world have put forward higher and higher requirements for the quality of vehic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G65/04C10G65/06B01J23/755
Inventor 鞠雅娜金辰兰玲刘坤红葛少辉朴佳锐李阳袁晓亮钟海军吴平易赵秦峰鲁旭梅建国马健波高卓然姜增琨
Owner PETROCHINA CO LTD
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