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

A kind of bagasse activated carbon and preparation method thereof

A technology of bagasse and activated carbon, applied in chemical instruments and methods, carbon compounds, inorganic chemistry, etc., can solve the problems of low utilization value and achieve strong adsorption capacity, large specific surface area, and environmental friendliness

Inactive Publication Date: 2019-01-15
中山市天美能源科技有限公司
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the bagasse produced by the sugar factory is mainly used for boiler incineration and provided to the paper mill for paper making, and its utilization value is low

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
  • A kind of bagasse activated carbon and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The method for preparing bagasse activated carbon comprises the following steps:

[0034] 1) Take the dried bagasse, wash it with water three times to remove the residual sugar, and dry it in the sun or in an oven to obtain dry bagasse;

[0035] 2) Activate the dry bagasse with 15wt% zinc chloride solution as the activator, wherein the mass ratio of the dry bagasse to the volume of activator A is 1g:4.5mL, the activation time is 8h, and the activation is at room temperature conduct;

[0036] 3) Dry the bagasse obtained in step 2) at 100°C for 2 hours and dehydrate;

[0037] 4) Carbonize the bagasse treated in step 3) at 500°C for 1 hour to obtain semi-finished activated carbon;

[0038] 5) Soak semi-finished activated carbon in dilute hydrochloric acid with a concentration of 0.01mol / L for 30 minutes;

[0039] 6) Use a voltage of 4.5V to oxidize the surface of the semi-finished activated carbon after step 5) for 2.5 hours;

[0040] 7) Wash the semi-finished activate...

Embodiment 2

[0044] The method for preparing bagasse activated carbon comprises the following steps:

[0045] 1) Take the dried bagasse, wash it with water three times to remove the residual sugar, and dry it in the sun or in an oven to obtain dry bagasse;

[0046] 2) Activate the dry bagasse with 20wt% potassium hydroxide solution as the activator, wherein the mass ratio of the dry bagasse to the volume of activator A is 1g:5mL, the activation time is 24h, and the activation is carried out at room temperature ;

[0047] 3) Dry the bagasse obtained in step 2) at 60°C for 24 hours and dehydrate;

[0048] 4) Carbonize the bagasse treated in step 3) at 500°C for 2 hours to obtain semi-finished activated carbon;

[0049]5) Soak the semi-finished activated carbon in dilute hydrochloric acid with a concentration of 0.05mol / L for 30 minutes;

[0050] 6) Use a voltage of 4.5V to oxidize the surface of the semi-finished activated carbon after step 5) for 0.5h;

[0051] 7) Wash the semi-finished...

Embodiment 3

[0055] The method for preparing bagasse activated carbon comprises the following steps:

[0056] 1) Take the dried bagasse, wash it with water three times to remove the residual sugar, and dry it in the sun or in an oven to obtain dry bagasse;

[0057] 2) Activate the dry bagasse with 20wt% zinc chloride solution as the activator, wherein the mass ratio of the dry bagasse to the volume of activator A is 1g:4.5mL, the activation time is 24h, and the activation is at room temperature conduct;

[0058] 3) Dry the bagasse obtained in step 2) at 70°C for 15 hours and dehydrate;

[0059] 4) Carbonize the bagasse treated in step 3) at 500°C for 1 hour to obtain semi-finished activated carbon;

[0060] 5) Soak semi-finished activated carbon in dilute hydrochloric acid with a concentration of 0.1mol / L for 30 minutes;

[0061] 6) Use a voltage of 4.5V to oxidize the surface of the semi-finished activated carbon after step 5) for 1.5h;

[0062] 7) Wash the semi-finished activated car...

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 bagasse activated carbon and a preparation method thereof. A preparation process mainly includes steps: taking bagasse as a raw material, and sequentially performing cleaning, primary activation with chemical agents, drying, high-temperature carbonization, soaking in diluted acid, surface oxidation under 3-20V voltage, residual activator cleaning and secondary activation with physical gas to obtain high-performance bagasse activated carbon. By secondary activation for activated carbon preparation, the chemical agents are adopted for activation prior to physical activation, and accordingly surface area of the activated carbon can be further improved. By voltage oxidation treatment of semi-finished activated carbon, a great quantity of oxidation groups are added, and active points in secondary activation are increased while activation efficiency is improved. The preparation process is simple, convenient and environment friendly. The prepared activated carbon has advantages of large specific surface area, small pore diameter, high adsorption capacity and the like.

Description

technical field [0001] The invention relates to the field of activated carbon materials, in particular to a high-performance activated carbon prepared from bagasse as a raw material, in particular to a bagasse activated carbon and a preparation method thereof. Background technique [0002] Bagasse is a common household waste, which is more common in the south. Bagasse contains a large amount of biological fibers and is an ideal material for preparing high-quality activated carbon. At present, there have been a large number of literature reports on the preparation of activated carbon after carbonization of bagasse at home and abroad. For example, Xiong Bailian et al. (Comprehensive Utilization of Resources in China, Vol.26, No.8) prepared bagasse into activated carbon, and the preparation process included the following steps: (1) Cleaning: washing the residual sugar in bagasse with water; ( 2) Activation: The activator usually used is zinc chloride or strong alkali; (3) Carb...

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): C01B32/324C01B32/336C01B32/348
CPCC01P2004/03C01P2006/12C01P2006/90
Inventor 王成胜卢锡洪
Owner 中山市天美能源科技有限公司
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