Gasoline hydrogenation catalyst, its prep. and application in lowering olefin by desulfurization

A gasoline hydrogenation and catalyst technology, applied in refining to remove heteroatoms, etc., can solve problems such as low total liquid yield

Inactive Publication Date: 2003-10-15
BEIJING HAISHUNDE TITANIUM CATALYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the processes described in the above-mentioned patents US 5,865,988, US 5,346,609, US 5,143,696 and EP 420,326 B1 also have the problem of low total liquid yield (C5+), generally only about 90w%

Method used

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  • Gasoline hydrogenation catalyst, its prep. and application in lowering olefin by desulfurization
  • Gasoline hydrogenation catalyst, its prep. and application in lowering olefin by desulfurization

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The titanium dioxide dry rubber powder (containing TiO) produced by Beijing Haishunde Titanium Catalyst Co., Ltd. Deqing Branch 2 80%) 200g, add 10g Tianqing powder, and mix well. Add 120g of aluminum gel: silica sol (1:1) to the aforementioned materials, and after fully kneading, extrude it into a clover-like strip with an equivalent diameter of 1.4mm on a front extrusion twin-screw extruder. The resulting wet strip is 60% Dry for 2 hours at 120°C, 2 hours at 120°C, and roast at 500°C for 3 hours to obtain carrier A. Its properties are shown in Table 1. It is impregnated with Mo-Co solution, dried at 110°C for 5 hours, and calcined at 450°C for 2 hours. The properties of catalyst A1 are shown in Table 2.

Embodiment 2

[0043] The titanium dioxide dry rubber powder (containing TiO) produced by Beijing Haishunde Titanium Catalyst Co., Ltd. Deqing Branch 2 80%) 100g and titanium-zirconium dry rubber powder (containing ZrO 2 25%) 100g, add 10g Tianqing powder, and mix well. Add 120g of 1:1 aluminum gel and silica sol to the aforementioned materials, fully kneaded and extruded on a front extrusion twin-screw extruder into a clover-like strip with an equivalent diameter of 1.4mm, the resulting wet strip is dried at 60 degrees Drying at 120°C for 2 hours for 2 hours, and calcining at 500°C for 3 hours to obtain carrier B. The properties are shown in Table 1. After being impregnated with Mo-Co solution, dried at 110°C for 5 hours, and calcined at 450°C for 2 hours, catalyst B1 was obtained. The properties are shown in Table 2.

Embodiment 3

[0045] The titanium dioxide dry rubber powder (containing TiO) produced by Beijing Haishunde Titanium Catalyst Co., Ltd. Deqing Branch 2 80%) 100g and titanium-silicon dry rubber powder (containing SiO 2 25%) 100g, add 10g Tianqing powder, and mix well. Add 120g of aluminum gel to the aforementioned materials, after fully kneading, extrude it into a clover-like strip with an equivalent diameter of 1.4mm on a front extrusion twin-screw extruder. The resulting wet strip is dried at 60°C for 2 hours and at 120°C After drying for 2 hours and calcining at 500°C for 3 hours, carrier C was obtained. Its properties are shown in Table 1. After being impregnated with Mo-Co solution, dried at 110°C for 5 hours, and calcined at 450°C for 2 hours, catalyst C1 was obtained. Its properties are shown in Table 2. .

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Abstract

The gasoline hydrogenating catalyst includes the components of carrier with TiO2 in 20-90 wt%; active component A of VIII metal oxide in 0.1-8 wt%; active component B of VIB metal oxide in 1-13 wt%; and adhesive in the rest content. After being pre-sulfurized, the catalyst of the present invention is used to process FCC gasoline in condition of mild hydrogenation and exhibits very high hydrodesulfurization activity and selectivity. Compared with traditional hydrogenation catalyst, the catalyst of the present invention has less loss of gasoline octane number and higher liquid product yield, up to 99 wt%, in the condition of same hydrodesulfurization level.

Description

Technical field [0001] The invention relates to a catalyst used in the process of hydrotreating gasoline containing sulfur and olefins and a preparation method thereof. In particular, it relates to a gasoline hydrogenation catalyst and preparation method and its application in desulfurization and olefin reduction. Background technique [0002] Traditional hydrodesulfurization, olefin saturation and denitrification catalysts are usually porous alumina or contain a small amount of SiO 2 Or B 2 O 3 The alumina is the carrier, and the metal elements of group VIII and VIB are the active components. Another type of hydrodesulfurization, olefin saturation and denitrification catalysts are bifunctional catalysts based on molecular sieves. [0003] FCC (catalytic cracking) gasoline can reduce the content of organic sulfur and olefins through selective hydroprocessing, so as to meet environmental protection requirements. However, the octane number-barrel loss rate of gasoline after treatme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G45/04
Inventor 沈炳龙彭成华王英顺张鹏岳大永
Owner BEIJING HAISHUNDE TITANIUM CATALYST
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