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Supported alloy type hydrogenation saturated catalyst and preparation method thereof

A catalyst and alloy-type technology, which is applied in the field of loaded alloy-type hydrogenation saturation catalyst and its preparation, can solve the problems of poor stability and low hydrogenation saturation selectivity, and achieve the effect of good stability and strong saturation capacity

Active Publication Date: 2017-04-26
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 hydrogenation saturation catalyst in order to overcome the problems of low selectivity and poor stability in the hydrogenation saturation of polycyclic aromatic hydrocarbons existing in the prior art

Method used

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  • Supported alloy type hydrogenation saturated catalyst and preparation method thereof
  • Supported alloy type hydrogenation saturated catalyst and preparation method thereof
  • Supported alloy type hydrogenation saturated catalyst and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] 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.

[0032] A mixed solution of palladium nitrate, cobalt nitrate, and tin chloride was used to impregnate the carrier particles at 40°C. The dry basis weight of the carrier contained in the impregnation solution was 0.2%Pd, 3%Co and 0.5%Sn, aged for 8h and passed After drying, it was oxidized in air at 900°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.

[0033] Catalyst 1 was used to evaluate the hyd...

Embodiment 2

[0035] 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.

[0036] A mixed solution of palladium nitrate, cobalt nitrate, and tin chloride was used to impregnate the carrier particles at 40°C. The dry basis weight of the carrier contained in the impregnation solution was 0.2%Pd, 3%Co and 0.5%Sn, aged for 8h and passed After drying, oxidize in air at 900°C for 4 hours, and then reduce in hydrogen at 700°C for 4 hours (this step can be completed in a reactor) to obtain the finished catalyst 2.

[0037] Catalyst 2 was used to evaluate the hydrogenation sa...

Embodiment 3

[0039] 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 1:13 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.

[0040] A mixed solution of palladium nitrate, cobalt nitrate, and tin chloride was used to impregnate the carrier particles at 40°C. The dry basis weight of the carrier contained in the impregnation solution was 0.2%Pd, 3%Co and 0.5%Sn, aged for 8h and passed After drying, oxidize in air at 900°C for 4 hours, and then reduce in hydrogen at 700°C for 4 hours (this step can be completed in a reactor) to obtain the finished catalyst 3.

[0041] Catalyst 3 was used to evaluate the hydrogena...

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Abstract

The invention relates to a supported alloy type hydrogenation saturated catalyst and a preparation method thereof which mainly solves the problem that a polycyclic aromatic hydrocarbons (PAHs) in the prior art has low hydrogenation selectivity and poor stability. The supported alloy type hydrogenation saturated catalyst and a preparation method thereof is characterized in that a catalyst is selected as a carrier, at least one, from a group including alumina, silica, titania or amorphous silicon aluminum; a formed alloy, as an active component, is selected at least one from the group including precious metals Pd, metal Co Sn, Ce or La. The technical scheme solves the above problems. The catalyst of the supported alloy type hydrogenation saturated catalyst and the preparation method thereof has the advantages of high saturation selectivity and stability in polycyclic aromatic hydrocarbons, and can be used in the field of hydrogenation refining of polycyclic aromatic hydrocarbons.

Description

technical field [0001] The invention relates to a loaded alloy type hydrogenation 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 and their...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/835B01J23/83C10G45/52
Inventor 李旭光孔德金邹薇周亚新
Owner CHINA PETROLEUM & CHEM CORP