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Preparation technology of high-performance carbon molecular sieve

A carbon molecular sieve, high-performance technology, applied in the field of high-performance carbon molecular sieve preparation technology, can solve the problem of being very afraid of oil, etc., and achieve the effects of low gas consumption ratio, simple process and excellent performance

Active Publication Date: 2015-12-16
HUZHOU XINAOLI ADSORPTION MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The prior art discloses the method of preparing carbon molecular sieves from flower mud leftovers, and some people further make them into different shapes to enhance the performance of carbon molecular sieves, but they still cannot overcome the shortcoming of being very oily

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A kind of preparation method of high-performance carbon molecular sieve:

[0023] (1) Raw material preparation: use a ball mill to grind flower mud scraps of 16 microns, walnut shell powder of 12 microns, dried apple pomace of 5 microns, tourmaline powder of 10 microns, and trehalose powder of 5 microns;

[0024] (2) Bonding: Mix the following raw materials in parts by mass: take 35 parts of flower mud leftover powder, 28 parts of walnut shell powder, 30 parts of dried apple pomace, 5 parts of tourmaline powder, 25 parts of plant starch, and 5 parts of seaweed Powdered sugar and 18 parts of water are used for bonding, and the bonding time is 70 minutes;

[0025] (3) Forming: Extrude the bonded raw materials with a twin-screw extruder, with a forming diameter of 2.0mm, and dry the formed raw materials at room temperature at 25°C;

[0026] (4) Carbonization and pore adjustment treatment: import the air-dried raw materials into the converter for carbonization and pore adj...

Embodiment 2

[0033] A kind of preparation method of high-performance carbon molecular sieve:

[0034] (1) Raw material preparation: Use a ball mill to grind flower mud scraps with a particle size of 20 microns, walnut shell powder with a particle size of 8 microns, dried apple pomace with a particle size of 9 microns, tourmaline powder with a size of 10 microns, and trehalose powder with a size of 5 microns;

[0035] (2) Bonding: Mix the following raw materials according to the parts by mass: take 30 parts of flower mud leftover powder, 35 parts of walnut shell powder, 20 parts of dried apple pomace, 8 parts of tourmaline powder, 25 parts of plant starch, and 3 parts of seaweed Powdered sugar and 20 parts of water are used for bonding, and the bonding time is 50 minutes;

[0036] (3) Forming: Extrude the bonded raw materials with a twin-screw extruder, with a forming diameter of 2.0mm, and dry the formed raw materials at room temperature at 25°C;

[0037] (4) Carbonization and pore adjust...

Embodiment 3

[0044] A kind of preparation method of high-performance carbon molecular sieve:

[0045] (1) Raw material preparation: use a ball mill to grind flower mud scraps with a particle size of 18 microns, walnut shell powder with a particle size of 10 microns, dried apple pomace with a particle size of 7 microns, tourmaline powder with a size of 10 microns, and trehalose powder with a size of 5 microns;

[0046] (2) Bonding: Mix the following raw materials in parts by mass: 33 parts of flower mud leftover powder, 31 parts of walnut shell powder, 25 parts of dried apple pomace, 7 parts of tourmaline powder, 25 parts of plant starch, and 4 parts of seaweed Powdered sugar and 19 parts of water are used for bonding, and the bonding time is 60 minutes;

[0047] (3) Forming: Extrude the bonded raw materials with a twin-screw extruder, with a forming diameter of 2.0mm, and dry the formed raw materials at room temperature at 25°C;

[0048] (4) Carbonization and pore adjustment treatment: impo...

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Abstract

The invention discloses a preparation method of a high-performance carbon molecular sieve. According to the method, 30-35 parts of floral foam offcut powder, 28-35 parts of walnut shell flour, 20-30 parts of dried apple pomace, 5-8 parts of tourmaline powder, 25 parts of plant starch, 3-5 parts of trehalose powder and 18-20 parts of water are taken to be bonded for 50-70 min; bonded raw materials are subjected to extrusion molding by a twin-screw extrusion molding machine, the molding diameter is 2.0 mm, and molded raw materials are air-dried at the normal temperature of 25 DEG C; carbonization and pore regulation treatment are performed; the packaging temperature of a product is controlled to range from 63 DEG C to 70 DEG C. The technology is simple, the raw materials are natural, and the prepared carbon molecular sieve is excellent in performance, low in gas consumption, energy-saving and environment-friendly; besides, the defect of poor oil resistance of the carbon molecular sieve is overcome.

Description

technical field [0001] The invention belongs to the technical field of polymer chemical industry, and in particular relates to a preparation process of a high-performance carbon molecular sieve. Background technique [0002] Carbon molecular sieve is the adsorbent on the PSA nitrogen production device, which adopts the principle of pressure swing adsorption (PSA) to separate and produce nitrogen from the air. The separation effect of carbon molecular sieves on oxygen and nitrogen in the air is mainly based on the difference in the diffusion rates of these two gases on the surface of carbon molecular sieves. Gas molecules (O2) with smaller diameters have a faster diffusion rate, and more of them enter the micropores of carbon molecular sieves. Gas molecules (N2) with larger diameters have a slower diffusion rate and fewer micropores into the carbon molecular sieve, so that nitrogen-enriched components can be obtained in the gas phase. Therefore, using the characteristic of ...

Claims

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Application Information

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IPC IPC(8): C01B31/02
Inventor 吴金星吴桂星
Owner HUZHOU XINAOLI ADSORPTION MATERIALS
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