High-abrasion resistance lithium-containing iron series Fischer-Tropsch synthetic catalyst, catalyst bonding agent containing blending silica sol and preparation method and application thereof

A high-wear, Fischer-Tropsch synthesis technology, applied in chemical instruments and methods, preparation of liquid hydrocarbon mixtures, catalysts for physical/chemical processes, etc., can solve problems such as increasing processing costs

Active Publication Date: 2013-01-16
CHNA ENERGY INVESTMENT CORP LTD +2
View PDF9 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Due to the wear and tear of the catalyst during the reaction process, the best Fischer-Tropsch synthetic wax currently contains at least 5ppm of Fe element, and most of the Fischer-Tropsch synthetic wax contains more than ten to tens of ppm of Fe element. During the post-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
  • High-abrasion resistance lithium-containing iron series Fischer-Tropsch synthetic catalyst, catalyst bonding agent containing blending silica sol and preparation method and application thereof
  • High-abrasion resistance lithium-containing iron series Fischer-Tropsch synthetic catalyst, catalyst bonding agent containing blending silica sol and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0064] In another specific embodiment of the present invention, there is provided a method for preparing a catalyst binder containing lithium and potassium silica sol, comprising: under the condition of 30-90°C, the required composition by catalyst weight ratio It is prepared after mixing lithium hydroxide and / or lithium silicate, potassium hydroxide and / or potassium silicate, and silica sol for 0.3-6 hours.

[0065] In a preferred embodiment, the catalyst binder of the silica sol containing lithium and potassium of the present invention is prepared by the following steps: lithium hydroxide and / or lithium silicate, potassium hydroxide and / or potassium silicate, and silica sol The weight ratio is converted to K, Li and SiO 2 1.5-15:0.1-8:10-60, preferably 1.5-12:0.1-6:10-50, more preferably 2-10:0.1-5:10-40, more preferably 2-10:0.1 -5: 10-30, most preferably 2-8: 0.1-4: 10-25, under the condition of 35-80 ° C, the required lithium hydroxide and / or lithium silicate, hydrogen w...

Embodiment

[0099] Synthesis Example 1

[0100] Step (a): about 76 kilograms of iron nitrate nonahydrate (Fe(NO 3 ) 3 9H 2 O), about 0.8 kg copper nitrate trihydrate (Cu(NO 3 ) 2 ·3H 2 O) was dissolved in deionized water to make about 2100 liters of solution.

[0101] Step (b): about 43 kilograms of anhydrous sodium carbonate (Na 2 (CO 3 )) was dissolved in deionized water to make about 400 liters of solution. After preheating the mixed solution containing iron and copper metal salts and the sodium carbonate solution to about 50°C respectively, flow the two solutions together into the reactor for co-precipitation within about 40 minutes, and adjust the pH value of the precipitation to about 6 , to carry out precipitation, after the precipitation is completed, let it stand for aging for about 60 minutes, after the aging is completed, filter and wash to obtain a co-precipitation filter cake.

[0102] Step (c): About 11.58 kg of SiO 2 Concentration by weight is that 8% colloidal si...

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

No PUM Login to view more

Abstract

The invention provides a high-abrasion resistance lithium-containing iron series Fischer-Tropsch synthetic catalyst and a preparation method thereof. The catalyst comprises the following elements of: Fe, Cu, K, Li and SiO2 in a weight ratio of 100:(1.5-15):(1.5-15):(0.1-8):(10-60). The invention also provides a catalyst bonding agent for preparing the Fischer-Tropsch synthetic catalyst and a preparation method thereof and application of the catalyst bonding agent containing blending silica sol of lithium silicate and potassium silicate to the preparation of the high-abrasion resistance lithium-containing iron series Fischer-Tropsch synthetic catalyst. The catalyst bonding agent contains the blending silica sol of the lithium silicate and the potassium silicate, and lithium-ion and potassium-ion interactive arrangement chain sections are positioned on a polysilicate molecular chain. The lithium-containing iron series Fischer-Tropsch synthetic catalyst has high mechanical strength and hydrothermal stability and high Fischer-Tropsch synthetic activity, and is suitable to be used in a slurry reactor; and a preparation process is simple and is suitable for large-scale production.

Description

technical field [0001] The present invention relates to a Fischer-Tropsch synthesis catalyst and a preparation method thereof, more specifically, to a high-wear-resistant lithium-containing iron-based Fischer-Tropsch synthesis catalyst and a preparation method thereof, and a co-catalyst containing lithium silicate and potassium silicate Catalyst binder of mixed silica sol, its preparation method, and its application. Background technique [0002] In the 1920s, German scientists F.Fischer and H.Tropsch discovered the method of using synthesis gas to synthesize hydrocarbons or oxygenated compounds under the action of iron or cobalt catalysts. After that, people will use synthesis gas as raw material to produce various The process of hydrocarbons and oxygenated organic compounds is called Fischer-Tropsch (F-T) synthesis. In the 1950s, the South African SASOL company implemented large-scale industrial production of coal-based syngas as raw material and iron-based catalysts to s...

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): B01J23/78B01J23/04B01J35/08C10G2/00
Inventor 吴秀章林泉王鹏门卓武武鹏吕毅军
Owner CHNA ENERGY INVESTMENT CORP 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