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Hydrogenation dethiolizing catalyst, preparation method thereof and application thereof

A hydrodesulfurization and catalyst technology, applied in chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, etc., can solve unqualified mercaptan sulfur and high octane loss and other problems, to achieve the effects of high liquid yield, less octane loss, and low olefin hydrogenation activity

Active Publication Date: 2012-05-16
CHINA PETROLEUM & CHEM CORP +1
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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 sulfur compounds in the final product are mercaptan sulfur compounds, which leads to unqualified mercaptan sulfur in the product
When this method is used to treat FCC gasoline, the mercaptan content is reduced from 212 μg / g to 10 μg / g, the research octane number (RON) loses 3.3 units, and the motor octane number (MON) loses 3.0 units. Therefore, this method The disadvantage is more octane loss when dealing with FCC gasoline

Method used

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  • Hydrogenation dethiolizing catalyst, preparation method thereof and application thereof
  • Hydrogenation dethiolizing catalyst, preparation method thereof and application thereof
  • Hydrogenation dethiolizing catalyst, preparation method thereof and application thereof

Examples

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preparation example Construction

[0033] Preparation of Vector T-1

[0034] Use 1000 grams of aluminum hydroxide powder, add 20 milliliters of nitric acid, 700 milliliters of deionized water and extrusion aid, mix and roll, extrude into a clover shape, dry at 110 ° C for 3 hours, and roast at 550 ° C for 3 hours to obtain the carrier T-1 .

[0035] Preparation of Vector T-2

[0036] Use 900g of aluminum hydroxide powder, add 18ml of nitric acid, 600ml of deionized water, 450g of silica sol and extrusion aid, mix and roll, extrude into a clover shape, dry at 110°C for 3 hours, and roast at 550°C for 3 hours to obtain the carrier T-2.

Embodiment 1

[0038] Mix 30 grams of copper nitrate, 18 grams of zinc nitrate, 7 grams of ammonium dihydrogen phosphate and 60 milliliters of deionized water, dissolve at 60 ° C for 1 hour to obtain 65 milliliters of Cu-Zn-P co-immersion solution, and 100 grams of roasted carrier T-1 was impregnated with the above impregnation solution at room temperature, dried at 120°C for 8 hours, and calcined at 500°C for 8 hours to obtain catalyst RM-1.

[0039] The physical properties of the RM-1 catalyst are listed in Table 1.

Embodiment 2

[0044] Mix 45 grams of copper nitrate, 32 grams of zinc nitrate, 4.7 grams of phosphoric acid and 60 milliliters of deionized water, dissolve at 60 ° C for 1 hour to obtain 65 milliliters of Cu-Zn-P co-immersion solution, and 100 grams of roasted carrier T-1 The catalyst RM-2 was obtained by impregnating with the above impregnating solution at room temperature, drying at 120°C for 8 hours, and calcining at 500°C for 8 hours.

[0045] The physical properties of the RM-2 catalyst are listed in Table 1.

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Abstract

The invention discloses a hydrogenation dethiolizing catalyst, a preparation method thereof and an application thereof. The catalyst which treats alumina or siliceous alumina as a carrier, copper and zinc as active components and phosphor as an assistant component comprises, by weight, 5-30% of copper oxide, 3-15% of zinc oxide and 0.5-30% of the assistant phosphor. The catalyst is prepared with a one-time saturation dipping technology. Compared with present catalysts, the catalyst of the invention can be applied to selective hydrogenation dethiolizing reactions on light oil products, and the catalyst has the characteristics of high dethiolizing activity, low olefin hydrogenation activity, difficult loss of the active components, and long running period.

Description

technical field [0001] The invention relates to a hydrodesulfurization catalyst and its preparation method and application, in particular to a hydrodesulfurization catalyst, its preparation method and its application in gasoline hydrodemercaptanization. Background technique [0002] With the increasingly stringent environmental protection regulations, countries around the world have put forward more and more stringent requirements for gasoline products, especially for the sulfur content in gasoline. / g to ≯150μg / g, and will develop into ≯50μg, even ≯10μg "sulfur-free gasoline". [0003] At present, catalytic cracking (FCC) is an important source of gasoline. For example, the proportion of FCC gasoline in refined gasoline in Chinese refineries is more than 80%, while the sulfur content in FCC gasoline is generally 200-1000μg / g, and the mercaptan content is generally 20~100μg / g. Therefore, FCC gasoline has high sulfur and mercaptan content, and reducing the sulfur and mercap...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/80C10G45/04
Inventor 尤百玲赵乐平方向晨庞宏
Owner CHINA PETROLEUM & CHEM CORP
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