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Supported alloy type aromatic hydrocarbon saturation catalyst and preparation method thereof

A catalyst and catalyst bed technology, which is applied in chemical instruments and methods, through aromatic hydrocarbon hydrorefining, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problem of uncontrollable and saturated polycyclic aromatic hydrocarbon hydrogenation It can achieve the effect of strong saturation ability, good stability and good technical effect

Active Publication Date: 2020-03-31
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] One of the technical problems to be solved by the present invention is to provide a new supported alloy type aromatic hydrocarbon saturation catalyst in order to overcome the uncontrollable or low saturation degree of polycyclic aromatic hydrocarbons in the prior art

Method used

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  • Supported alloy type aromatic hydrocarbon saturation catalyst and preparation method thereof
  • Supported alloy type aromatic hydrocarbon saturation catalyst and preparation method thereof
  • Supported alloy type aromatic hydrocarbon saturation catalyst and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Add 2.4g of scallop powder to 80g of γ-alumina (commercially purchased) on a dry basis and mix well, then add 4g of HNO at a volume ratio of 1:1 3 aqueous solution and 40g deionized water, and knead evenly to make a dough suitable for extrusion. It is extruded through a die and is in the shape of a slender cylinder (cross-sectional diameter 1.5mm). After drying at 120°C, it is baked at 550°C for 4 hours, and then it is cut into carrier particles (1.5×4.0mm) of uniform size for use.

[0030] The mixed solution of chloroiridic acid, nickel nitrate, and tin chloride was impregnated to the carrier particles at 40°C, and the dry basis weight of the carrier contained in the impregnating solution was 0.2%Ir, 3%Ni and 0.2%Sn, aged for 8h and After drying, it was oxidized in air at 1000°C for 4 hours, and then reduced in hydrogen at 700°C for 4 hours (this step can be completed in a reactor) to obtain the finished catalyst 1.

[0031] Catalyst 1 was used to evaluate the hydroge...

Embodiment 2

[0033] Add 2.4g of kale powder to 80g of silica (commercially purchased) on a dry basis and mix well, then add 4g of HNO with a volume ratio of 1:1 3 aqueous solution and 40g deionized water, and knead evenly to make a dough suitable for extrusion. It is extruded through a die and is in the shape of a slender cylinder (cross-sectional diameter 1.5mm). After drying at 120°C, it is baked at 550°C for 4 hours, and then it is cut into carrier particles (1.5×4.0mm) of uniform size for use.

[0034] The mixed solution of chloroiridic acid, nickel nitrate, and tin chloride was impregnated to the carrier particles at 40°C, and the dry basis weight of the carrier contained in the impregnating solution was 0.2%Ir, 3%Ni and 0.2%Sn, aged for 8h and After drying, it was oxidized in air at 1000°C for 4 hours, and then reduced in hydrogen at 700°C for 4 hours (this step can be completed in a reactor) to obtain the finished catalyst 2.

[0035] Catalyst 2 was used to evaluate the hydrogenati...

Embodiment 3

[0037] Add 2.4g of scallop powder to 80g of titanium oxide (commercially purchased) on a dry basis and mix well, then add 4g of HNO at a volume ratio of 1:1 3 aqueous solution and 40g deionized water, and knead evenly to make a dough suitable for extrusion. It is extruded through a die and is in the shape of a slender cylinder (cross-sectional diameter 1.5mm). After drying at 120°C, it is baked at 550°C for 4 hours, and then it is cut into carrier particles (1.5×4.0mm) of uniform size for use.

[0038] The mixed solution of chloroiridic acid, nickel nitrate, and tin chloride was impregnated to the carrier particles at 40°C, and the dry basis weight of the carrier contained in the impregnating solution was 0.2%Ir, 3%Ni and 0.2%Sn, aged for 8h and After drying, it was oxidized in air at 1000°C for 4 hours, and then reduced in hydrogen at 700°C for 4 hours (this step can be completed in a reactor) to obtain the finished catalyst 3.

[0039] Catalyst 3 was used to evaluate the hydr...

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Abstract

The invention relates to an alloy-supported aromatic hydrocarbon saturation catalyst and a preparation method thereof and mainly solves the problem that polycyclic aromatic hydrocarbon hydrogenation saturation degree is uncontrollable or low in the prior art. According to the technical scheme, the catalyst takes at least one of aluminum oxide, silicon oxide, titanium oxide or amorphous silica-alumina as a supporter and takes an alloy formed by precious metal Ir, metal Ni and at least one of Sn and Bi as an active component, so that the problem is better solved. The catalyst is prepared with a high-temperature redox method, is high in hydrogenation saturation activity and controllable in hydrogenation saturation degree and can be applied to the aromatic hydrocarbon refining field.

Description

technical field [0001] The invention relates to a loaded alloy type aromatic hydrocarbon saturation catalyst and a preparation method thereof. Background technique [0002] At present, many heavy distillate oil treatment technologies, such as hydrocracking and hydrodecondensation, will involve the hydrogenation saturation process of polycyclic aromatic hydrocarbons, and the degree of saturation determines the distribution of the final product. Therefore, the development of polycyclic aromatic hydrocarbon hydrogenation saturation catalysts with high saturation activity and controllable saturation degree plays a vital role in promoting the progress of refining technology and optimizing product distribution. Aromatic components in heavy distillates mainly include monocyclic, bicyclic, tricyclic and above tricyclic aromatics and their alkyl derivatives. Among them, the first three are the main components of diesel fractions, and aromatic hydrocarbons with three rings or more an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/89C10G45/52
Inventor 李旭光孔德金邹薇侯敏
Owner CHINA PETROLEUM & CHEM CORP
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