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A kind of method for catalyzing gasoline deep desulfurization containing ni-mo-co catalyst

A ni-mo-co, deep desulfurization technology, applied in the petroleum industry, hydrocarbon oil treatment, hydrotreating process, etc., can solve problems such as unsatisfactory technical requirements, unseen, unqualified mercaptan sulfur, etc. The effect of optimization of loss of alkane number, reduction of reaction severity and extension of operation cycle

Active Publication Date: 2017-01-11
PETROCHINA CO LTD
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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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  • A kind of method for catalyzing gasoline deep desulfurization containing ni-mo-co catalyst

Examples

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Effect test

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 ammonium molybdate, 3g of cobalt nitrate, and 51g 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 sequentially add 4g of ammonium molybdate, 10g of cobalt nitrate, and 62g 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 impregnation liquid was prepared, and the catalyst was impregnated in two steps. First weigh 40ml of ammonia water, then add 4g of ammonium molybdate, 6g of cobalt nitrate, and 34g of nickel acetate and stir until dissolved, and finally use ammonia water to make up the volume. Metal active component impregnation method and drying, roasting conditions are the same as embodiment 1, and make once impregnated catalyst sample; Above-mentioned catalyst sample is carried out secondary impregnation, takes by weighing 40ml ammoniacal liquor, then adds 4g ammonium molybdate, 6g cobalt nitrate, 21g acetic acid Nickel was stirred until dissolved, and finally made up to volume 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-3# was...

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Abstract

The invention relates to a method for catalyzing gasoline deep desulfurization with an Ni-Mo-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 hydrodesulfurization catalyst adopted by the second reactor is the Ni-Mo-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 Patents(China)
IPC IPC(8): C10G65/04B01J23/882
Inventor 金辰鞠雅娜兰玲葛少辉朴佳锐赵秦峰吴平易鲁旭梅建国王鹏马健波康洪敏高卓然
Owner PETROCHINA CO LTD
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