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

Catalytic wet oxidation catalyst and preparation method thereof

A catalytic wet oxidation, catalyst technology, applied in physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, chemical instruments and methods, etc., can solve the problem of unstable properties of amorphous alumina and sludge impurities Problems such as high content and non-repeatability

Active Publication Date: 2018-10-12
FUSHUN HUANKE PETROCHEM TECH DEV CO LTD
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method belongs to the process of physical mixing of alumina-containing species and activated carbon, and the dispersion of alumina and activated carbon is uneven; and the sludge used has high impurity content, and the obtained amorphous alumina is unstable, unrepeatable, and complex in structure

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
  • Catalytic wet oxidation catalyst and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051]Add solid aluminum chloride, cerium nitrate, and copper nitrate into distilled water while heating and stirring until dissolved to obtain solution (a). Add an appropriate amount of distilled water to the concentrated ammonia water and dilute it into about 10wt% dilute ammonia water (b). Add the powdered coconut shell charcoal to the glucose aqueous solution and mix evenly, the liquid-solid volume ratio is 3:1, then add water and make a slurry to obtain the slurry (c). After adding (a) into the gelling tank and stirring and heating to 60°C, open the valve of the container containing (b), and control the system in the tank to drop to pH=4.0 within 10 minutes, then add (c), continue to add (b) dropwise, and control the dropwise addition of the tank system to pH=8.0 within 30 minutes. Keep the temperature at 60°C, pH=8.0, age for 1 hour, filter the material in the tank, wash until there is no chloride ion, filter, dry the filter cake at 110°C for 10 hours to obtain catalyst...

Embodiment 2

[0054] Add solid aluminum sulfate, cerium nitrate and copper nitrate into distilled water while heating and stirring until dissolved to obtain solution (a). Add an appropriate amount of distilled water to the concentrated ammonia water and dilute it into about 10wt% dilute ammonia water (b). Add the powdered coconut shell charcoal to the glucose aqueous solution and mix evenly, the liquid-solid volume ratio is 5:1, then add water and make a slurry to obtain the activated carbon slurry (c). Take a plastic tank, add (a) into the tank, stir and heat to 60°C, open the valve of the container containing (b), control the system in the tank to drop to pH=4.0 within 10 minutes, open (c ) the valve of the container, continue to drop (b), control the dropwise addition of the system in the tank to pH=8.0 within 30 minutes, control the valve of the container of (c), and ensure that the drop is completed at this time. Keep the temperature at 60°C, pH=8.0, age for 1 hour, filter the materia...

Embodiment 3

[0057] Add solid aluminum sulfate, cerium nitrate, and ferric nitrate into distilled water while heating and stirring until dissolved to obtain solution (a). The solid sodium metaaluminate is formulated to a concentration of 250g Al 2 o 3 / L sodium aluminate solution (b). Add the powdered coconut shell charcoal into the sucrose aqueous solution and mix evenly, the liquid-solid volume ratio is 3:1, then add water and make a slurry to obtain the slurry (c). The water glass is diluted in deionized water according to the ratio of 1:2 to prepare solution (d). Take a glue tank, put 2L of deionized water into it, stir and heat it to 60°C, then add the slurry (c), open the valve of the container containing (a) and (b) at the same time, control the pH of the system to 8.0, and control it for 45 minutes After dripping (a) inside, close the valve. Keep the temperature at 65°C, pH = 8.0, and after staying for 20 minutes, add solution (d) to the system, and add it within 10 minutes bas...

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
particle sizeaaaaaaaaaa
particle sizeaaaaaaaaaa
particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses a catalytic wet oxidation catalyst and a preparation method thereof. The catalyst comprises a core-shell structured component, the core-shell structured component adopts active carbon as a core and alumina or amorphous silica-alumina containing transition metals and rare earth metals as a shell, and the preparation method comprises the following steps: introducing an active carbon slurry in the gel formation process of co-precipitation process prepared alumina or amorphous silica-alumina, transition metals and rare earth metals, forming gel, and ageing to obtain the catalyst. The catalyst is especially suitable for being used as a catalytic wet oxidation catalyst, especially a catalytic wet oxidation catalyst of sewage from refinery, and has improved activity and use stability.

Description

technical field [0001] The invention relates to a catalytic wet oxidation catalyst and a preparation method thereof, in particular to a catalytic wet oxidation catalyst containing active carbon and alumina or amorphous silicon aluminum and a preparation method thereof. Background technique [0002] With the increasingly stringent global environmental protection regulations, the control indicators for sewage discharge standards are getting higher and higher. Under this form, wastewater catalytic oxidation treatment methods have been paid more and more attention to and adopted by people, such as the catalytic wet method of high-concentration sewage Oxidation, electrolytic catalytic oxidation, photocatalytic oxidation, advanced oxidation, etc. In the process of catalytic oxidation of wastewater, in order to obtain the ideal treatment effect and keep the cost of wastewater treatment low by reducing the reaction temperature and pressure, the preparation of cheap catalysts with hi...

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): B01J23/83B01J23/889C02F1/78C02F1/74C02F1/72
Inventor 蒋广安张晔单广波刘雪玲李宝忠郭宏山刘忠生
Owner FUSHUN HUANKE PETROCHEM TECH DEV CO LTD
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