Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Preparation method of hydrodemetallization catalyst

A hydrodemetallization and catalyst technology, which is applied in metal/metal oxide/metal hydroxide catalysts, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problems of complex preparation process, achieve high activity, High-capacity metal capacity, the effect of increased active metal content

Active Publication Date: 2020-10-16
CHINA PETROLEUM & CHEM CORP +1
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this method, the catalyst carrier is stacked by multiple nanorod-shaped alumina monomers, and the pores formed are relatively large. Although it is conducive to the diffusion of macromolecules such as colloids and asphaltenes, it also has the disadvantage of complicated preparation process.

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
  • Preparation method of hydrodemetallization catalyst
  • Preparation method of hydrodemetallization catalyst
  • Preparation method of hydrodemetallization catalyst

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0033] Preparation of rod-shaped alumina clusters:

[0034] Weigh 200 grams of alumina powder, place it in 1200 grams of ammonium bicarbonate aqueous solution with a mass concentration of 17.5 wt%, seal it in a closed autoclave and heat-treat it at 130°C for 7 hours, filter and wash, and dry the material at 110°C for 6 Hours, rod-shaped alumina clusters A 1 , A 1 The scanning electron microscope image of figure 1 shown.

[0035] Weigh 200 grams of alumina powder, place it in 1600 grams of ammonium bicarbonate aqueous solution with a mass concentration of 13.5wt%, seal it in a closed autoclave and heat-treat at 140°C for 5 hours, filter and wash, and dry the material at 110°C for 6 Hours, rod-shaped alumina clusters A 2 , A 2 The scanning electron microscope image of figure 2 shown.

Embodiment 1

[0037] (1) Weigh the rod-shaped alumina cluster body A 1 100 g, impregnated with impregnating solution with molybdenum oxide concentration of 3.15g / 100mL and nickel oxide concentration of 0.55g / 100mL for 1 hour. Rod-shaped alumina clusters.

[0038] (2) Weigh 170 grams of pseudo-boehmite, step (1) 100 grams of modified rod-shaped alumina clusters, 0.3 grams of scallop powder, mix the above materials evenly, and add an appropriate amount of acetic acid aqueous solution with a mass concentration of 1%. Kneading, extrusion molding, drying the molded product at 120°C for 6 hours, and roasting the dried product at 650°C for 5 hours in an air atmosphere to obtain the carrier I.

[0039] (3) Weigh 100 grams of carrier I in step (2), 180 grams of ammonium bicarbonate, 650 grams of water, stir magnetically for 40 minutes, then transfer the mixture into an autoclave and seal it at 145°C for 5.5 hours. Dry at 120°C for 6 hours, and then bake the dried product at 500°C for 5 hours in an...

Embodiment 2

[0042] Same as Example 1, except that step (1) the concentration of molybdenum oxide in the impregnating solution is 3.0g / 100mL, and the concentration of nickel oxide is 0.65g / 100mL; step (2) the amount of pseudo-boehmite added is 350 grams; step (3 ) The amount of ammonium bicarbonate added is 230 grams, the amount of water added is 750 grams, the sealing heat treatment temperature is 135 ° C, and the treatment time is 6.5 hours; the concentration of molybdenum oxide in the impregnation solution in step (4) is 9.45 g / 100 mL, nickel oxide The concentration is 3.45g / 100mL, and the catalyst Cat2 is prepared, and the properties of the catalyst are shown in Table 1.

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
lengthaaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a preparation method of a hydrodemetallization catalyst. The preparation method comprises the following steps of: (1) preparing a rod-like alumina cluster body; (2) impregnating the rod-like alumina cluster body obtained in the step (1) with an impregnation liquid containing a hydrogenation active component I, performing drying to obtain a modified rod-like alumina clusterbody, mixing and kneading the modified rod-like alumina cluster body and pseudo-boehmite, and performing molding, drying and roasting to obtain a carrier I; (3) mixing the carrier I obtained in the step (2) with ammonium bicarbonate and water, performing sealed heat treatment, and conducting drying and roasting to obtain a carrier II; and (4) impregnating the carrier II obtained in the step (3) with an impregnation liquid containing a hydrogenation active component II, and drying and roasting the carrier to obtain the hydrodemetallization catalyst. The hydrodemetallization catalyst prepared bythe method is through in pore channels and proper in pore distribution, the active components are non-uniformly distributed, and the catalyst is used for a heavy oil hydrogenation process and has relatively high hydrodemetallization activity and relatively high hydrodesulfurization activity.

Description

technical field [0001] The invention relates to the field of catalyst preparation, in particular to a method for preparing a hydrodemetallization catalyst. Background technique [0002] With the intensification of crude oil deterioration and heaviness, the efficient conversion of heavy oil and the improvement of the yield of light oil products have become an important trend in the development of refining technology. The fixed bed hydrogenation technology of residual oil is an effective means to realize the efficient conversion of heavy oil. Adopting this technical route can effectively remove impurities such as metals, sulfur, nitrogen and residual carbon in residual oil, provide high-quality feed for catalytic cracking, and meet stricter environmental protection regulations while increasing production of light oil products. In the process of heavy oil processing, the metal compounds in it will decompose, and the metal impurities will deposit on the inner and outer surfaces...

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): B01J23/883C10G45/08
CPCB01J23/883C10G45/08C10G2300/70C10G2300/205C10G2300/202
Inventor 刘纾言季洪海张会成王少军凌凤香沈智奇
Owner CHINA PETROLEUM & CHEM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com