Hydrogenation protection catalyst as well as preparation method and application thereof

A hydrogenation protection and catalyst technology, which is applied in the petrochemical field, can solve the problems such as the decrease of the mechanical strength of the carrier, the large addition amount, and the large particles, and achieve the effects of protecting the stability of the activity, improving the wear resistance, and improving the pore-enlarging effect.

Pending Publication Date: 2022-05-10
NINGBO ZHONGJIN PETROCHEM CO LTD
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, on the one hand, it can avoid the problem that the mechanical strength of the carrier is reduced due to the large amount of conventional physic

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
  • Hydrogenation protection catalyst as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0039] A preparation method of a hydrogenation protection catalyst, comprising the following steps:

[0040] (1) Kneading pseudo-boehmite, anthracene, biotite and extrusion aid uniformly to obtain a mixture. in:

[0041] The added amount of the anthracene is 3.1-5.0% of the weight of the alumina carrier; the added amount of the biotite is 1.0-3.0% of the weight of the alumina carrier. The extrusion aid is one or more of starch, saffron powder, polyvinyl alcohol, methyl cellulose and polyethylene glycol, and is added in an amount of 2 to 10 wt% based on the total weight of each component. .

[0042] (2) Add the peptized acid solution at 40~80°C into the mixture at a speed of 11~20g / min and knead evenly, after setting, drying at 100~140°C, and calcining at 350~550°C for 5~10h to obtain an alumina carrier . in:

[0043] The peptizing acid is one or more of nitric acid, phosphoric acid, citric acid, hydrochloric acid and acetic acid. The shaping is extruded into a cylindrica...

Example Embodiment

specific embodiment

[0047] Preparation of hydrogenation protection catalyst C1: take 50 g of pseudo-boehmite, add 1.3 g of anthracene, 0.7 g of biotite, 3 g of succulent powder (extrusion aid), knead evenly; add nitric acid (concentration: 60 ℃) dropwise at 80 °C. %) aqueous solution, the dropping rate is 20g / min, kneading, the addition amount is to meet the uniformity of kneading the above four substances, extrude into cylindrical strips with the same height-diameter ratio of 10mm, dry at 140°C for 7h, and bake at 400°C for 7.5h , to make an alumina carrier; then use cobalt nitrate to prepare an aqueous solution with a metal ion concentration of 10 g / ml, add dodecyl alcohol polyether to this solution to obtain an impregnating solution, which is used to impregnate the above alumina carrier for 7.5 hours, and then dried at 125 ° C 3h, calcined at 500°C for 5h. The final composition of the catalyst is: cobalt oxide 6.4 wt % and the balance alumina. Catalyst specific surface a...

Example Embodiment

[0057] Example 1: Hydrogenation protection catalyst C1 and selective hydrorefining catalyst 1010C were used, and the loading volume ratio was 1:3.

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
Specific surface areaaaaaaaaaaa
Pore volumeaaaaaaaaaa
Strengthaaaaaaaaaa
Login to view more

Abstract

The invention relates to the field of petrifaction, and discloses a hydrogenation protection catalyst as well as a preparation method and application thereof. The hydrogenation protection catalyst comprises an alumina carrier and a metal oxide active component, and the preparation method comprises the following steps: uniformly mixing and kneading pseudo-boehmite, anthracene, biotite and an extrusion aid to obtain a mixture; uniformly mixing and kneading a peptizing acid solution and the mixture, shaping, drying and roasting to obtain an aluminum oxide carrier; adding a nonionic surfactant into the precursor aqueous solution of the metal oxide active component to form a mixed solution; and impregnating the alumina carrier in the mixed solution, drying, and roasting to obtain the hydrogenation protection catalyst. Anthracene is used as a pore-enlarging agent, and a better pore-enlarging effect is achieved. The mechanical strength of the carrier can be improved; on the other hand, the activity stability of the downstream main catalyst can be better protected. According to the hydrogenation protection catalyst, inferior heavy oil can be completely utilized, and the obtained mixed aromatic hydrocarbon product is high in yield and low in impurity content.

Description

technical field [0001] The invention relates to the petrochemical field, in particular to a hydrogenation protection catalyst and its preparation method and application. Background technique [0002] At present, oil resources are showing a trend of heavy and inferior quality. The output of heavy and inferior crude oil is increasing year by year worldwide, and the processing ratio of heavy and inferior crude oil is increasing day by day. There is an urgent need to increase the processing capacity of heavy and inferior crude oil, especially the processing capacity of residual oil. [0003] The residual oil is the residual oil obtained from the vacuum distillation of the primary processing unit of the refinery in the petrochemical industry, so it is called the vacuum residual oil; sometimes the heavy oil obtained from the bottom of the atmospheric distillation tower is also called the atmospheric residual oil. The content of vacuum residue in crude oil produced in my country is...

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
IPC IPC(8): B01J23/755C10G45/06C07C7/163C07C15/24
CPCB01J23/755C10G45/06C07C7/163C07C15/24
Inventor 李水荣徐保岳楼巧琳胡阳阳曹澎锐
Owner NINGBO ZHONGJIN PETROCHEM CO LTD
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