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Application method of second-kind active site hydrogenation catalyst

A technology of hydrogenation catalyst and active center, which is applied in the field of hydrogenation catalyst start-up, and can solve problems such as the influence of hydrogenation catalyst performance

Inactive Publication Date: 2012-05-23
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Experiments have shown that this kind of start-up airtight process will have a significant impact on the performance of the second type of active center hydrogenation catalyst

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026]Compared with the comparative example, the difference is that activated oil is used for wetting operation before airtightness, and the volume of the activated oil (straight-run kerosene without vulcanizing agent) for wetting is 60mL, and the others are the same as Comparative Example 1.

Embodiment 2

[0028] Compared with the comparative example, the difference is that activated oil is used for wetting operation before airtightness, and the volume of the activated oil (straight-run kerosene without vulcanizing agent) for wetting is 20mL, and the others are the same as Comparative Example 1.

[0029] Table 2 embodiment and comparative example start-up and catalyst performance contrast

[0030] Example number

[0031] It can be seen from the results in Table 2 that the catalyst activity of the start-up method provided by the present invention is better than that of the conventional hydrogenation catalyst sulfidation start-up method.

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PUM

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Abstract

The invention discloses an application method of a second-kind active site hydrogenation catalyst, comprising the following steps: (1) taking the second-kind active site hydrogenation catalyst and putting in a reaction at a normal temperature under a normal pressure, letting in the air in a nitrogen displacement reaction system; (2) when the temperature of the reactor being within normal temperature to 135 DEG C, introducing catalyst moistening oil; (3) after introducing the moistening oil, carrying out airtight inspection by heating and boosting according to a routine method; and (4) after qualifying the airtight inspection, carrying out catalyst activation, after the activation, adjusting to hydrogenation conditions, then introducing hydrogenation raw materials for hydrogenation reaction. The catalyst application method is beneficial for the catalyst to form more second-kind active sites and is beneficial for increasing the performance of the catalyst.

Description

technical field [0001] The invention relates to a method for starting a hydrogenation catalyst, in particular to a method for starting a hydrogenation catalyst with two types of active centers. technical background [0002] Due to the slow growth of crude oil production and increasingly heavy quality, the demand for clean oil products in today's world is increasing, and the product quality requirements are becoming more and more stringent. The hydrogenation process of petroleum distillate is the main technology for producing clean oil products at present, and the preparation technology of hydrogenation catalyst is the key of hydrogenation technology. The active metal component of the prepared hydrogenation catalyst is generally in an oxidized state, and before the oxidized state catalyst is used in industry, its active metal must be converted into a sulfurized state to have a high catalytic activity. Therefore, the sulfidation of the catalyst has an important influence on t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G49/24C10G47/00C10G45/00
Inventor 方向晨高玉兰王继锋徐黎明李崇慧陈光
Owner CHINA PETROLEUM & CHEM CORP
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