Method and equipment for preparing activated carbon carrier for storing natural gas from hard husks

A technology of natural gas and hard nutshells, applied in chemical instruments and methods, inorganic chemistry, non-metallic elements, etc., can solve the problems of reducing the adsorption capacity of finished activated carbon, and achieve easy recycling, large specific surface area, good swelling and expansion Effect

Inactive Publication Date: 2014-07-16
ZHEJIANG FORESTRY ACAD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since a binder needs to be added during the molding process, the adsorption capacity of the finished activated carbon will be reduced; the patent application number is 200610013838.x, which refers to a method of using adsorbed natural gas as a vehicle fuel, includi

Method used

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  • Method and equipment for preparing activated carbon carrier for storing natural gas from hard husks
  • Method and equipment for preparing activated carbon carrier for storing natural gas from hard husks
  • Method and equipment for preparing activated carbon carrier for storing natural gas from hard husks

Examples

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example 1

[0016]Crush the raw material of the fruit shell to 10-20 meshes, soak it with 85% phosphoric acid solution at 90-100°C for 1 hour, then filter it dry and use a three-dimensional plasticizing equipment to expand and expand at a temperature of 120-130°C to adjust the conveyor belt. The running speed is 1.5 m / min. The conveyor belt of the plasticizing equipment is 40 meters long, and there are 5 layers of conveyor belts. The plasticized shell material is output from the discharge port (8), and the residence time of the shell material in the plasticizing equipment is about For 133 minutes, the shell material was expanded and the inside of the particles became looser, and then the expanded material was added Figure 4 In the vertical charcoal activation furnace shown, carbonization and activation are carried out at a temperature of 250-480°C, the activation material is released at an appropriate discharge speed, and then the activation material is soaked in hot water for 7 times, ea...

example 2

[0019] Crush the raw material of fruit shells to 10-20 meshes, dip in 75% phosphoric acid solution at 90-100°C for 1 hour, then filter dry and use plasticizing equipment to expand and expand at a temperature of 120-130°C to adjust the running speed of the conveyor belt The conveyor belt of the plasticizing equipment is 40 meters long, and there are 5 layers of conveyor belts. The plasticized shell material is output from the discharge port (8), and the residence time of the shell material in the plasticizing equipment is about 133 Minutes, so that the shell material is puffed and the inside of the granule becomes looser, and then the puffed material is added Figure 4 In the vertical charcoal activation furnace shown, carbonization and activation are carried out at a temperature of 250-480°C, and the activation material is discharged at an appropriate discharge speed, and then the activation material is soaked in hot water for 7 times, each time for 15 minutes, and recovered T...

example 3

[0022] Crush the raw material of the fruit shell to 5-10 meshes, soak in boiling water for 4 hours, then filter and dry until the water content is 20-30%, soak in 85% phosphoric acid solution at 90-100°C for 1 hour, then filter and dry with plastic The plasticizing equipment is swollen and puffed at a temperature of 120-130°C, and the running speed of the conveyor belt is adjusted to 1.5 m / min. The conveyor belt of the plasticizing equipment is 40 meters long, with a total of 5 layers of conveyor belts. Port (8) output, the residence time of the shell material in the plasticizing equipment is about 133 minutes, so that the shell material is expanded and the inside of the particle becomes looser, and then the expanded material is added Figure 4 In the vertical charcoal activation furnace shown, carbonization and activation are carried out at a temperature of 250-480°C, and the activation material is discharged at an appropriate discharge speed, and then the activation material ...

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Abstract

The invention relates to a method, process and equipment for preparing an activated carbon carrier for storing natural gas from hard husks serving as a raw material. The method, process and equipment disclosed by the invention have the following characteristics that 1, the hard shells are soaked with boiling water so as to reduce the crystallinity of the husks and then dipped with phosphoric acid, so that phosphoric acid permeates into the husk material more easily; 2, the husk material dipped by the phosphoric acid is subjected to continuous swelling and puffing treatment by adopting stereoscopic plasticizing equipment, so that the husks obtain a good swelling and puffing effect, the activated carbon carrier for storing the natural gas is prepared by adopting two-step activation processes, namely phosphoric acid activation in a vertical carbon activating furnace and alkali activation in a rotary activating furnace, and an activating agent is easily recovered and recycled. According to the method, process and equipment disclosed by the invention, the vertical carbon activating furnace is used for concentratedly discharging phosphorus-containing gas generated in the phosphoric acid activation process out of the furnace through an activating center pipe, and after collected, the phosphorus-containing gas is sprayed with water, and thus phosphoric acid is recovered and recycled.

Description

1. Technical field [0001] The invention relates to a preparation method and equipment of activated carbon, in particular to a method and three-dimensional plasticizing equipment for preparing carrier activated carbon for absorbing and storing natural gas by using hard fruit shells as raw materials. 2. Background technology [0002] Currently, natural gas is stored in three main ways: compressed natural gas (CNG), liquefied natural gas (LNG) and adsorbed natural gas (ANG). CNG is a technology for compressing and storing natural gas in high-pressure containers. It is currently the main storage method for vehicle-mounted natural gas. Since the storage pressure of vehicle-mounted compressed natural gas is as high as 20-25MPa, the gas storage cylinder is an ultra-high pressure container, which has certain potential dangers; The gas cylinder is heavy in weight and the manufacturing cost is high. In addition, the vehicle-mounted compressed natural gas has high requirements on the ...

Claims

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Application Information

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IPC IPC(8): C01B31/12C01B32/324C01B32/342
Inventor 蒋应梯庄晓伟潘炘章江丽
Owner ZHEJIANG FORESTRY ACAD
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