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Selective hydrogenation catalyst for catalytic cracking gasoline and preparation method thereof

A technology of catalytic cracking gasoline and hydrogenation catalyst, which is applied in the direction of selective hydrogenation refining, catalyst activation/preparation, physical/chemical process catalyst, etc., can solve the problems of unreported demercaptan function, etc., to save equipment investment, not easy Effects of bleed, high diene hydrogenation selectivity and stability

Inactive Publication Date: 2010-10-27
BEIJING HAISHUNDE TITANIUM CATALYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] To sum up, the catalysts in the prior art are mainly used for diolefin hydrotreating of pyrolysis gasoline or light gasoline, and there is no report about the demercaptan function

Method used

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  • Selective hydrogenation catalyst for catalytic cracking gasoline and preparation method thereof
  • Selective hydrogenation catalyst for catalytic cracking gasoline and preparation method thereof
  • Selective hydrogenation catalyst for catalytic cracking gasoline and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] 13 g of titanium aluminum powder, 187 g of pseudo-boehmite, and 10 g of succulent powder were added, and mixed uniformly. Then kneaded and extruded into clover-shaped strips with a diameter of 2.0mm, and then roasted in a muffle furnace. The control conditions were: constant temperature at 600 °C for 2 hours and constant temperature at 800 °C for 3 hours to obtain carrier A, whose properties are shown in Table-1 . 10.18g of ammonium heptamolybdate was weighed and dissolved in 100ml of 20% ammonia water, 53.80g of nickel nitrate was added, and a clear and transparent solution was obtained after fully dissolving. Impregnate carrier A, dry it in the air, and then dry it in an electric oven. The control conditions are: constant temperature at 60°C for 2 hours and then constant temperature at 110°C for 3 hours. After drying, the material is roasted in a muffle furnace. The control conditions are: constant temperature at 350°C for 2 hours. 480 ℃ constant temperature for 2 ho...

Embodiment 2

[0050] 26g of titanium-aluminum powder, 174g of pseudo-boehmite, and 10g of asparagus powder were added, and mixed uniformly. Then kneaded and extruded into clover-shaped strips with a diameter of 2.0mm, and then roasted in a muffle furnace. The control conditions were: constant temperature at 600 °C for 2 hours and constant temperature at 800 °C for 3 hours to obtain carrier B, whose properties are shown in Table-1 . 11.65g of ammonium heptamolybdate was weighed and dissolved in 100ml of 20% ammonia water, 46.47g of nickel nitrate was added, and a clear and transparent solution was obtained after fully dissolving. The carrier B is impregnated, dried in the air, and then dried in an electric oven. The control conditions are: constant temperature at 60 °C for 2 hours and constant temperature at 110 °C for 3 hours. After drying, the material is roasted in a muffle furnace. The control conditions are: constant temperature at 350 °C for 2 hours 480 ℃ constant temperature for 2 ho...

Embodiment 3

[0052] 52g of titanium-aluminum powder, 148g of pseudo-boehmite, and 10g of asparagus powder were added, and mixed uniformly. Then kneaded and extruded into clover-shaped strips with a diameter of 2.0 mm, and then roasted in a muffle furnace. The control conditions were: constant temperature at 600 °C for 2 hours and constant temperature at 800 °C for 3 hours to obtain carrier C, whose properties are shown in Table-1 , 15.09g of ammonium heptamolybdate was weighed and dissolved in 100ml of 20% ammonia water, 40.60g of nickel nitrate was added, and a clear and transparent solution was obtained after fully dissolving. Impregnate the carrier C, dry it in the air, and then dry it in an electric oven. The control conditions are: constant temperature at 60°C for 2 hours and constant temperature at 110°C for 3 hours. After drying, the material is roasted in a muffle furnace. The control conditions are: constant temperature at 350°C for 2 hours. 480 ℃ constant temperature for 2 hours ...

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Abstract

The invention relates to a selective hydrogenation catalyst for catalytic cracking gasoline and a preparation method thereof. The catalyst consists of AL2O3-TiO2 composite oxide carrier and active metal oxide; in percentage by the weight of the catalyst, the content of NiO in the active metal oxide is 10 to 20 w percent, and the content of MoO3 is 5 to 12 w percent, wherein the weight ratio of TiO2 to Al2O3 in the AL2O3-TiO2 composite oxide carrier is 0.01 to 1:1. When processing catalytic gasoline under the conditions of low temperature (100DEG C to 200DEG C), lower pressure (1MPa to 3.0MPa) and low hydrogen-oil ratio (hydrogen-oil volume ratio: 5:1 to 100:1), the selective hydrogenation catalyst shows high diolefin-removing and mercaptan-removing activities, selectivity and stability.

Description

technical field [0001] The invention relates to a catalyst used in the process of hydrotreating catalytically cracked gasoline containing sulfur and olefin and a preparation method thereof. Specifically, it is a catalytic cracking gasoline selective hydrogenation catalyst, its preparation method and its application in removing diolefins and mercaptans. Background technique [0002] At present, about 80% of the gasoline used in motor vehicles in my country comes from FCC gasoline, and the main problem of FCC gasoline is that the content of sulfur and olefins is high, which cannot meet the quality requirements of motor gasoline. Therefore, catalytic gasoline needs to be processed to improve its quality, such as through selective hydrodesulfurization techniques to reduce its sulfur content while minimizing gasoline octane loss. Catalytic gasoline contains 0.5-2.0w% of diolefin components. Compared with mono-olefin, di-olefin has poor chemical and thermal stability, and it is e...

Claims

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Application Information

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IPC IPC(8): B01J23/883B01J37/02C10G45/38C10G45/08
Inventor 彭成华付玉梅黄维山张宗辉
Owner BEIJING HAISHUNDE TITANIUM CATALYST
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