Method for catalyzing gasoline deep desulfurization with Ni-Co containing catalyst

A technology for deep desulfurization and catalytic gasoline, which is applied in chemical instruments and methods, physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, etc. Unqualified sulfur and other problems, to achieve the effect of reducing the severity of the reaction, optimizing the loss of octane number, and prolonging the operation cycle

Active Publication Date: 2015-05-27
PETROCHINA CO LTD
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  • Summary
  • 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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  • Method for catalyzing gasoline deep desulfurization with Ni-Co containing catalyst

Examples

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Embodiment 1

[0032] Weigh 100g of pseudo-boehmite, add 2.5g 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 rate of the carrier according to the conventional method, and then follow the equal volume impregnation method to configure the active component impregnation solution according to the water absorption rate of the carrier. First weigh 45ml of ammonia water, then add 2g of cobalt nitrate and 60g of nickel nitrate in turn and stir until dissolved, and finally use ammonia water to make up the volume. The carrier was impregnated by an equal volume impregnation method, so that the catalyst carrier fully absorbed the active component impregnating solution, and then placed for 12 hours, the catalyst was dried at 120°C for 4 hours, and calcined at 500°C for 4 hours to obtain the catalyst sample Cat-1#.

Embodiment 2

[0034] According to the preparation method of the carrier in Example 1, 100 g of the catalyst carrier was prepared, and then the active component impregnating solution was prepared, and the preparation method was the same as that of Example 1. First weigh 50ml of ammonia water, then add 5g of cobalt nitrate and 42g of nickel acetate and stir until dissolved, and finally use ammonia water to constant 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-2# was obtained.

Embodiment 3

[0036] According to the preparation method of the carrier in Example 1, 100 g of the catalyst carrier was prepared, and then the active component impregnating solution was prepared, and the preparation method was the same as that of Example 1. First weigh 50ml of ammonia water, then add 8g of cobalt nitrate and 30g of nickel acetate 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 method for catalyzing gasoline deep desulfurization with an Ni-Co containing catalyst. Specifically, a gasoline raw material enters a first reactor to undergo selective hydrodesulfurization and then enters a second reactor to further undergo deep desulfurization. The second reactor adopts a highly selective hydrodesulfurization catalyst, which is an Ni-Co containing catalyst. The catalyst has certain desulfurization activity, and at the same time has little olefin saturation, after combination with the first reactor, further deep desulfurization can be realized, and simultaneously the reaction severity of the first reactor can be significantly reduced, so that the octane number loss and hydrogen consumption can be 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): C10G65/04B01J23/755
Inventor 鞠雅娜金辰兰玲刘坤红袁晓亮张学军钟海军侯远东李阳胡亚琼王书芹吕忠武鲁旭姜增琨
Owner PETROCHINA CO LTD
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