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: 2005-09-07
BEIJING HAISHUNDE TITANIUM CATALYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the technique described in above-mentioned patent US5,865,988, US5,346,609, US5,143,696 and EP420,326 B1 also has total liquid collection (C5 + ) lower problem, 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
  • Gasoline hydrogenation catalyst, its prep. and application in lowering olefin by desulfurization

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The dry titanium dioxide powder (containing TiO2) produced by Deqing Branch of Beijing Haishunde Titanium Catalyst Co., Ltd. 2 80%) 200g, add Tian Qing powder 10g, mix well. Add aluminum gel: silica sol (1: 1) 120g in the aforementioned material, after fully kneading, extrude into the clover-like strip that equivalent diameter is 1.4mm on the extruding type twin-screw extruder, gained wet strip, at 60 Drying at 120°C for 2 hours, drying at 120°C for 2 hours, and calcining at 500°C for 3 hours, the carrier A was obtained. Catalyst A1, its properties are shown in Table 2.

Embodiment 2

[0042] The dry titanium dioxide powder (containing TiO2) produced by Deqing Branch of Beijing Haishunde Titanium Catalyst Co., Ltd. 2 80%) 100g and titanium-zirconium dry rubber powder (containing ZrO 2 25%) 100g, add Tian Qing powder 10g, mix well. Add 120g of 1:1 aluminum gel and silica sol to the above-mentioned materials, and after fully kneading, extrude into clover-like strips with an equivalent diameter of 1.4mm on a front-extrusion twin-screw extruder, and dry the obtained wet strips at 60 degrees Dry at 120°C for 2 hours for 2 hours, and bake at 500°C for 3 hours to obtain carrier B, whose 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, and its properties are shown in Table 2.

Embodiment 3

[0044] The dry titanium dioxide powder (containing TiO2) produced by Deqing Branch of Beijing Haishunde Titanium Catalyst Co., Ltd. 2 80%) 100g and titanium-silica colloidal powder (containing SiO 2 25%) 100g, add Tian Qing powder 10g, mix well. Add 120g of aluminum gel to the aforementioned materials, after fully kneading, extrude into clover-like strips with an equivalent diameter of 1.4mm on a front-extrusion twin-screw extruder, and dry the obtained wet strips at 60°C for 2 hours, then dry them at 120°C Drying for 2 hours, calcining at 500°C for 3 hours to obtain carrier C, whose properties are shown in Table 1, impregnated with Mo-Co solution, dried at 110°C for 5 hours, and calcined at 450°C for 2 hours, to obtain catalyst C1, whose 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. It particularly relates to a gasoline hydrogenation catalyst and its preparation method and its application in desulfurization and olefin reduction. Background technique [0002] Traditional hydrodesulfurization, olefin saturation and denitrogenation catalysts are usually based on porous alumina or containing a small amount of SiO 2 or B 2 o 3 Aluminum oxide is used as a carrier, and metal elements of Group VIII and VIB are used as active components. Another class of hydrodesulfurization, olefin saturation and denitrogenation catalysts are bifunctional catalysts based on molecular sieves. [0003] FCC (catalytic cracking) gasoline can reduce the content of organic sulfur and olefins in it through selective hydrotreating, so as to meet environmental protection requirements. However, the octane-barrel loss...

Claims

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Application Information

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Patent Type & Authority Patents(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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