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Method and apparatus for preparation of xylose and combined production of active carbon

A technology of activated carbon and xylose, applied in xylose production, sugar production, sugar production and other directions, can solve the problems of unfavorable process sustainable development, non-renewability, high economic cost, etc., achieve high environmental protection value, avoid pollution , the effect of huge economic benefits

Inactive Publication Date: 2015-07-01
JINAN SHENGQUAN GROUP SHARE HLDG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the prior art, this method of preparing activated carbon has relatively high economic cost, and the raw material such as coal is non-renewable, which is not conducive to the sustainable development of the process

Method used

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  • Method and apparatus for preparation of xylose and combined production of active carbon
  • Method and apparatus for preparation of xylose and combined production of active carbon

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0077] The equipment for preparing activated carbon for co-production of xylose provided by the present invention includes a biomass raw material feeding device, which is used for feeding biomass raw materials. In the present invention, the biomass raw material feeding device preferably includes a biomass raw material dust removal device and a biomass raw material crushing device, and the outlet of the biological raw material dust removal device is connected with the feed of the biological raw material crushing device, so The discharge port of the biomass raw material crushing device is connected with the first feed port of the first material mixing device. In an embodiment of the present invention, the biomass raw material is transported by a belt conveyor to the biomass raw material dedusting device to remove dust and sundries in the biological raw material; the dedusted biomass raw material flows into the biomass raw material Pulverize in the raw material crushing device to...

Embodiment 1

[0115] (1) Feeding and pretreatment of raw materials:

[0116] The corn cobs are sent to the receiving hopper of the feeding belt in the workshop, and then sent to the vibrating screening conveyor by the belt to screen out part of the sediment and debris before entering the washing machine. The corncob washing machine should regularly remove the sediment in its grit hopper. After washing, the corncobs are dehydrated through the vibrating dewatering screen and then enter the bucket elevator or the belt conveyor with a large inclination angle and sidewall, and then are lifted and transported to the horizontal belt conveyor on the top of the hydrolysis pot, and then sent to the needs through the chute controlled by the distribution plate. Load the hydrolysis pot.

[0117] (2) Hydrolysis:

[0118] During the hydrolysis process, the corncobs are first hydrolyzed and pretreated, and the corncobs are immersed in a sulfuric acid solution with a mass concentration of 0.1wt%±2wt%, and...

Embodiment 2

[0124] The technical scheme of Example 1 was used to prepare hydrolysis and activated carbon. The difference is that the acid solution used in the hydrolysis pretreatment in this example is an aqueous phosphoric acid solution with a mass concentration of 0.15 wt%, and the pretreatment temperature is 130°C. 1h; the acid solution used in the hydrolysis treatment is sulfuric acid with a mass concentration of 1%, and the temperature of the steam is 132°C.

[0125] The main components of the collected hydrolyzate are: xylose: 3-5%wt, arabinose: 0.3-0.55%wt, glucose: 0.45-0.65%wt, galactose: 0.15-0.3%wt, and the sugar concentration is generally 5-0.5%wt 8%wt.

[0126] In this example, the mass ratio of the absolute dry mass of xylose slag particles to pure phosphoric acid is 1:2.5, the temperature for carbonization activation is 490° C., and the time for carbonization activation is 80 minutes.

[0127] The present invention uses the test method described in Example 1 to test the pe...

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Abstract

The invention provides a method for preparation of xylose and combined production of active carbon. The method comprises the following steps: hydrolyzing a biomass raw material so as to obtain xylose and xylose residue; and charing and activating the xylose residue under the action of a catalyst so as to obtain active carbon. According to the method provided by the invention, the biomass raw material is hydrolyzed to obtain the xylose and the xylose residue; then the xylose residue is used as a raw material for preparation of active carbon via a chemical method. Compared with the prior art, the invention has the following advantages: since the xylose residue is used as the raw material, recycling of waste residue in production of xylose is realized, pollution to the environment caused by direct discharge of the waste residue is avoided, and a high environmental protection value is achieved; and the method realizes combined production of active carbon, so immense economic benefits are obtained.

Description

technical field [0001] The invention relates to the technical field of carbon materials, in particular to a method and equipment for preparing xylose co-production activated carbon. Background technique [0002] Activated carbon, also known as activated carbon black, is black powder or granular amorphous carbon. The main components of activated carbon include oxygen, hydrogen and other elements in addition to carbon. In terms of structure, microcrystalline carbon is irregularly arranged, and there are pores between cross-links, which will produce carbon tissue defects during activation, so it is a porous carbon with low packing density and large specific surface area. Moreover, there are smaller pores in the carbon particles of activated carbon-capillaries. This kind of capillary has a strong adsorption capacity, and due to the large surface area of ​​the carbon particles, it can fully contact with the gas (impurity). When these gases (impurities) meet the capillary, they...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C13K13/00C01B31/08
CPCC13K13/002C01B32/324
Inventor 唐一林江成真刘晓敏高绍丰栗昭争马军强张茜部先栋
Owner JINAN SHENGQUAN GROUP SHARE HLDG
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