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

A kind of hydrogenation treatment catalyst and its preparation method and application

A hydrotreating and catalyst technology, applied in physical/chemical process catalysts, chemical instruments and methods, chemical/physical processes, etc., can solve the problem of reducing the number of active metal centers, limiting the loading of active components, and weakening the adsorption of active components. and other problems to achieve the effect of preventing strong interaction, improving intrinsic activity, and increasing degree of vulcanization

Active Publication Date: 2022-06-07
CHINA PETROLEUM & CHEM CORP +1
View PDF12 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this method, the active components are first dissolved in deionized water, and then organic carboxylic acid substances are added to form a stable complex with the main metal. The impregnating solution has the characteristics of good stability and low viscosity, but under conventional roasting conditions, Partial coking of organic carboxylic acids on the catalyst surface reduces the number of active metal centers
Chinese patent CN101089132A discloses a hydrodesulfurization catalyst with four active components of W-Mo-Ni-Co. impregnated onto the alumina carrier, but the loading amount of the active component is limited and cannot provide more total active metals; during the impregnation process, the interaction between phosphorus and the surface groups of the support will weaken the active component on the support. Adsorption makes the metal components easy to agglomerate, reduces the dispersion of the active components in the catalyst, and weakens the catalyst activity

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Use pseudo-boehmite dry rubber powder to prepare catalyst precursor, weigh 300 grams of alumina dry rubber powder, add 4 grams of succulent powder, 4 grams of citric acid, and 2 grams of methyl cellulose, and add acid solution after mixing. The concentration of nitric acid in the solution is 2wt%, and the rest is distilled water. Rolling for 15 to 25 minutes, extruding with a clover orifice plate with a diameter of 1.5 mm, drying at 120°C for 12 hours, and calcining at 550°C for 3 hours to obtain a catalyst carrier, namely Z-1, whose properties are as follows: pore volume is 0.80ml / g, and the specific surface area is 350m 2 / g.

Embodiment 2

[0036] Weigh an appropriate amount of carrier Z-1, and pre-impregnate carrier Z-1 with a dipping solution containing 3-mercapto-1,2,4-triazole, and the dipping solution contains 3-mercapto-1,2,4-triazole. The content of azole is 1% of the mass of the carrier. After the impregnated carrier is dried at 120 °C for 3 hours, it is impregnated with an impregnating liquid containing Mo, Ni and P. The composition of the impregnating liquid is MoO 3 The content of NiO was 88.5g / 100ml, the content of NiO was 15g / 100ml, and the content of P was 2.3g / 100ml. The impregnated samples were aged at room temperature for 10 hours, and then heat-treated at 200 °C for 3 hours in an air atmosphere to obtain catalyst C-1. The carbon content in the catalyst was 2.5%.

Embodiment 3

[0038] Weigh an appropriate amount of carrier Z-1, and pre-impregnate carrier Z-1 with a dipping solution containing 3-amino-5-mercapto-1,2,4-triazole, and the dipping solution contains 3-amino-5- The content of mercapto-1,2,4-triazole is 2% of the mass of the carrier. After the impregnated carrier is dried at 120°C for 3 hours, it is impregnated with an impregnating liquid containing Mo, Ni and P. The composition of the impregnating liquid is MoO 3 The content of NiO was 89.5g / 100ml, the content of NiO was 15g / 100ml, and the content of P was 2.5g / 100ml. The impregnated samples were aged at room temperature for 10 hours, and heat-treated at 300 °C for 3 hours in an air atmosphere to obtain catalyst C-2. The carbon content in the catalyst was 0.75%.

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
Login to View More

Abstract

The invention discloses a hydrotreating catalyst and its preparation method and application, comprising: (1) preparing or selecting an alumina carrier; (2) impregnating the alumina carrier prepared or selected in step (1) and containing nitrogen atoms and sulfur (3) Perform low-temperature drying treatment on the alumina carrier impregnated with organic compounds containing nitrogen atoms and sulfur atoms in step (2); (4) The impregnation activity of the alumina carrier after step (3) low-temperature drying treatment Component solutions or active metals and additives are impregnated and subjected to high-temperature heat treatment to obtain a hydrogenation catalyst. The catalyst prepared by the method not only has high metal component dispersity and sulfidation degree, is easy to be fully sulfided, and generates many active sites, which is beneficial to the improvement of catalyst activity, but also has a simple preparation method and low production cost.

Description

technical field [0001] The present invention relates to a hydrotreating catalyst, its preparation method and application, in particular to a hydrotreating catalyst suitable for heavy distillate oil hydrodenitrogenation and desulfurization process, and its preparation method and application. Background technique [0002] In the process of hydrotreating, the content of impurities such as nitrogen, sulfur, oxygen and metals in crude oil continues to increase, and the degree of crude oil heaviness continues to deepen. It also emits a large amount of harmful gases such as sulfur oxides and nitrogen oxides, which endangers human health and environmental protection. It is one of the main reasons for the formation of haze weather. It has high activity, low cost and stability. The catalyst with good performance can not only ease the process conditions, but also reduce the hydrogen consumption and achieve the effect of energy saving and consumption reduction. [0003] The process of ...

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 Patents(China)
IPC IPC(8): B01J27/24C10G45/04
Inventor 唐兆吉杨占林王仲义姜虹温德荣王平张哲
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