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Continuously carbonizing device and method for preparing intermediate product carbonized material of carbon molecular sieve

A carbon molecular sieve and carbonization device technology, applied in the field of continuous carbonization device, can solve the problem of unstable carbonized material quality and other problems, and achieve the effects of reducing the probability of secondary pyrolysis, good combustion performance, and large processing capacity

Active Publication Date: 2014-06-25
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The intermittent production mode of the electric converter will also bring about the problem of unstable quality of carbonized materials

Method used

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  • Continuously carbonizing device and method for preparing intermediate product carbonized material of carbon molecular sieve
  • Continuously carbonizing device and method for preparing intermediate product carbonized material of carbon molecular sieve
  • Continuously carbonizing device and method for preparing intermediate product carbonized material of carbon molecular sieve

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A small vertical carbonization furnace experimental device is adopted, and the operation process principle of the device is the same as Figure 1~Figure 3 . The main technical parameters of the device are as follows: the material of the vertical carbonization furnace is high temperature and corrosion resistant stainless steel, the effective height is 1206mm, the inner diameter is 120mm, the number of material plates is 45 layers, and the fan-shaped central angle α formed by the material plate blanking hole is 30 o , the total opening rate is 5%, and the position stagger angle β of the fan-shaped arrangement of the two adjacent material plates is 180 o ;The carbonization furnace is equipped with 5 sections of ring-shaped resistance furnaces that can be independently controlled. The resistance furnaces of each section have the same height and are evenly arranged between the top of the carbonization furnace and the 43rd layer of material plates. The bottom of the carboniza...

Embodiment 2

[0033] The main technical parameters of the device The central angle α of the sector of the material plate is 60 o , porosity 12%, other parameters with embodiment one. In the continuous carbonization experiment, the constant temperature time of the material was about 23 minutes, and other conditions were the same as in Example 1.

Embodiment 3

[0035]The main technical parameters of the device The central angle α of the sector of the material plate is 120 o , porosity 25%, other parameters with embodiment one. In the continuous carbonization experiment, the constant temperature time of the material was about 20 minutes, the feeding rate of the molding material was 0.6 kg / h, and other conditions were the same as in the first embodiment.

[0036] According to Embodiment 3, the continuous carbonization of 2 batches of 20 kg molding materials was respectively completed. The obtained carbonized material product is handed over to a carbon molecular sieve industrial manufacturer to further complete activation and carbon deposition to adjust pores to obtain a carbon molecular sieve product. Table 1 shows the test results of the physical properties of the carbon molecular sieve products provided by the manufacturer; Table 2 shows the test results of the pressure swing adsorption air separation of the carbon molecular sieve p...

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Abstract

The invention discloses a continuously carbonizing device and method for preparing intermediate product carbonized material of a carbon molecular sieve. Particle objects are carbonized continuously inside a vertical carbonizing furnace provided with multi-section heating furnace temperature control; the furnace temperature distribution of the carbonizing furnace is constant, the processed solid material is carbonized inside the carbonizing furnace after being sequentially subjected to heating, temperature-keeping and cooling; water vapor inside the carbonizing furnace serves as cooling medium, activating agent and protective atmosphere; compositions of the gaseous product generated by the carbonized solid material are stable, the gaseous product has excellent flammability, and is discharged outside after complete combustion; the activated reaction of the processed material is controllable in space and time, and the obtained carbonized material production has stable performance; and the unit equipment has big processing capacity, and the equipment investment and running cost are low. The continuously carbonizing method provided by the invention has the characteristics of high efficiency, low consumption and environmental protection.

Description

technical field [0001] The invention relates to a continuous carbonization device and method for preparing intermediate product carbonization materials of carbon molecular sieves. Background technique [0002] The existing production process of carbon molecular sieves used for pressure swing adsorption air separation nitrogen production generally has three steps: [0003] (1) The carbon-containing raw materials are pulverized and formed with a binder to obtain granular molding materials; [0004] (2) The molding material is carbonized in an inert atmosphere to obtain a carbonized material; [0005] (3) The carbonization material is further activated and the pores are adjusted by carbon deposition to obtain carbon molecular sieves. [0006] Since the production of carbonized material requires strict heating rate and constant temperature and time control, industrialized carbonized material production is usually completed in an electrically heated converter, which is a batch ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B31/02C01B32/05
Inventor 徐绍平欧阳少波肖荣林
Owner DALIAN UNIV OF TECH
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