Method for grading catalyst for hydrogenation treatment

A hydroprocessing and catalyst technology, which is applied in the treatment of hydrocarbon oil, hydrocarbon oil cracking, petroleum industry, etc., can solve the problems of increasing radial temperature difference, affecting the service life of the catalyst, and exacerbating the bias flow of heavy raw materials.

Active Publication Date: 2012-01-11
CHINA PETROLEUM & CHEM CORP +1
View PDF5 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing catalyst grading technology cannot solve the problem of bias flow of heavy raw materials in reactors in industrial devices, and even some grading methods may aggravate the bias flow of heavy raw materials, resulting in increased radial temperature difference and affecting the service life of catalysts

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for grading catalyst for hydrogenation treatment
  • Method for grading catalyst for hydrogenation treatment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] In the 3-meter-high hydrogenation reactor, the residual oil raw material is in contact with the protective agent, demetallization catalyst, and desulfurization catalyst in sequence, and a spherical catalyst layer is added in the demetallization catalyst layer. The diameter of the spherical catalyst is 19mm, and the bulk density is 600kg m -3 , the spherical catalyst carrier is Al2O3, the active component and its content are MoO 3 8.0wt%, NiO 2.0wt%, the specific filling method is shown in Table 1, and the process conditions and test results are shown in Table 3.

Embodiment 2

[0019] In the 3-meter-high hydrogenation reactor, the residual oil raw material is in contact with the protective agent, demetallization catalyst, and desulfurization catalyst in sequence. A spherical catalyst layer is added in the demetallization catalyst bed. The composition of the spherical catalyst is the same as that of the demetallization catalyst. The diameter of the spherical catalyst is 20mm, bulk density 700kg m -3 , the spherical catalyst carrier is Al2O3, the active component and its content are MoO 3 8.0wt%, NiO 2.0wt%, the specific filling method is shown in Table 1, and the process conditions and test results are shown in Table 3.

[0020] Table 1 Properties of Raw Materials

[0021] Analysis Project

raw material

Sulfur, wt%

2.73

Carbon residue, wt%

13.50

Nickel + vanadium, μg / g

21.29

[0022] Table 2 Bed packing method

[0023]

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
diameteraaaaaaaaaa
diameteraaaaaaaaaa
diameteraaaaaaaaaa
Login to view more

Abstract

The invention discloses a method for grading a catalyst for hydrogenation treatment. In the method, a spherical catalyst layer is arranged in a catalyst bed layer, and one or more than one spherical catalyst layer is arranged. The method disclosed by the invention can improve the distribution of a material flow in the reactor, lower the radial temperature difference in the reactor, and the operation period of the device can be prolonged.

Description

technical field [0001] The invention relates to a gradation method of a hydrogenation treatment catalyst, in particular to a gradation method of a residual oil fixed bed hydrogenation treatment catalyst, which is suitable for the residual oil fixed bed hydrogenation treatment process. Background technique [0002] As we all know, the reactions in the hydrotreating process of residual oil mainly include hydrodesulfurization, hydrodenitrogenation, hydrodemetallization, hydrosaturation of olefins and aromatics, and hydrocracking of various hydrocarbons. Generally speaking, the hydrogenation reaction of residual oil is an exothermic reaction, the hydrodemetallization reaction is moderate, and the desulfurization reaction and denitrogenation reaction are strong exothermic reactions. The most widely used and mature process for residual oil hydrotreating in industry is fixed bed. In fixed bed residual oil treatment technology, major companies in the world such as UOP, Chevron, IFP...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C10G49/02C10G45/00C10G47/02
Inventor 安晟隋宝宽王志武王欣
Owner CHINA PETROLEUM & CHEM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap