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Tail gas treatment system and apparatus for continuously preparing nanometer carbon material

A nano-carbon material and tail gas treatment technology, which is applied in the direction of nano-carbon, gas treatment, climate sustainability, etc., can solve problems such as tail gas treatment, achieve safe and reliable use, reduce energy consumption, reduce labor costs and time costs

Pending Publication Date: 2017-12-01
SHANXI ZHONGXING HUANNENG TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a tail gas treatment system and a device for continuously preparing nano-carbon materials to solve the problem of tail gas treatment in the production of nano-carbon materials in the prior art

Method used

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  • Tail gas treatment system and apparatus for continuously preparing nanometer carbon material

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Effect test

Embodiment 1

[0030] The continuous preparation of carbon nanotubes by catalytic cracking of methane comprises the following steps:

[0031] Step 1, close the feed pipe 3 and the discharge pipe 6, open the exhaust pipe 7, and the inlet pipe 4 is connected to nitrogen, and passed into the reactor 1 for 10 minutes; repeat 3 times, to remove the air in the reactor 1;

[0032] Step 2, adjust the inclination angle of reactor 1 to 0 degrees, rotate at a speed of 8~20r / min, heat the heating furnace 2 to 500~600°C, replace the gas in the inlet pipe 4 with hydrogen, and replace the La2NiO4 in the feed pipe 3 Catalyst powder enters reactor 1 with hydrogen, and the catalyst is reduced for 20-30 minutes;

[0033] Step 3, adjust the temperature of the heating furnace 2 to 700°C~900°C, adjust the inclination angle of the reactor 1 to -5~-8 degrees, and reverse the rotation at a speed of 10~15r / min for 10~20min; replace the gas in the inlet pipe 4 For methane, adjust the inclination angle of reactor 1 to...

Embodiment 2

[0038] The continuous preparation of nano-onion carbon by catalytic cracking of coalbed gas includes the following steps:

[0039] Step 1, close the feed pipe 3 and the discharge pipe 6, open the exhaust pipe 7, and the inlet pipe 4 is connected to nitrogen, and passed into the reactor 1 for 10 minutes; repeat 3 times, to remove the air in the reactor 1;

[0040] Step 2, adjust the inclination angle of reactor 1 to 0 degrees, rotate at a speed of 5~15r / min, heat the heating furnace 2 to 500~600°C, replace the gas in the inlet pipe 4 with hydrogen, and replace the Ni in the feed pipe 3 - Fe alloy catalyst powder enters reactor 1 with hydrogen, and reduces the catalyst for 20-30 minutes;

[0041] Step 3, adjust the temperature of the heating furnace 2 to 700°C~900°C, adjust the inclination angle of the reactor 1 to -3~-6 degrees, and reverse the rotation at a speed of 8~12r / min for 10~20min; replace the gas in the inlet pipe 4 For coalbed methane, adjust the inclination angle o...

Embodiment 3

[0046] The continuous preparation of graphene by catalytic cracking of natural gas comprises the following steps:

[0047] Step 1, close the feed pipe 3 and the discharge pipe 6, open the exhaust pipe 7, and the inlet pipe 4 is connected to nitrogen, and passed into the reactor 1 for 10 minutes; repeat 3 times, to remove the air in the reactor 1;

[0048] Step 2, adjust the inclination angle of reactor 1 to 0 degrees, rotate at a speed of 5~15r / min, heat the heating furnace 2 to 600~700°C, replace the gas in the inlet pipe 4 with natural gas, and replace the catalyst in the feed pipe 3 Cu powder enters reactor 1 with hydrogen, and reduces the catalyst for 20-30 minutes;

[0049] Step 3, adjust the temperature of the heating furnace 2 to 900°C~1000°C, adjust the inclination angle of the reactor 1 to -3~-5 degrees, and reverse the rotation at a speed of 10~12r / min for 15~25min; replace the gas in the inlet pipe 4 For natural gas, adjust the inclination angle of reactor 1 to 6~8...

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Abstract

The present invention discloses a tail gas treatment system and an apparatus for continuously preparing a nanometer carbon material, and belongs to the technical field of nanometer carbon material preparation. The tail gas treatment system comprises a cyclone separator, an induced fan, a dryer and a gas storage tank, wherein the cyclone separator comprises a cone, the bottom portion of the cone is provided with a material discharging port, the side wall of the lower portion of the cone is provided with a gas inlet, the upper portion of the cone is provided with a water inlet, the top portion of the cone is provided with a gas outlet, the induced fan is communicated to the gas outlet through a pipeline, and the dryer is arranged between the induced fan and the gas storage tank. The present invention further relates to the apparatus used for continuously preparing a nanometer carbon material and provided with the tail gas treatment system. According to the present invention, the system is directly connected to the tail gas discharging port, and recycling is performed after the mixed gas and the hollow nanometer carbon material are separated, such that the maximum use of natural gas, coal seam gas, biogas and the like is achieved while the energy consumption required by the catalytic cracking of alkane gases is reduced, and the requirements of energy saving and emission reducing can be met.

Description

technical field [0001] The invention relates to the technical field of preparing nano-carbon materials, in particular to a tail gas treatment system and a device for continuously preparing nano-carbon materials. Background technique [0002] In recent years, the catalytic cracking of alkane hydrogen gases (mainly methane) such as natural gas, coal bed methane, and biogas to produce carbon and hydrogen has become a research hotspot. Nano-carbon materials (nano-onion carbon, nano-carbon tubes, nano-carbon Chains, etc.) and H2 without carbon oxides (can be directly used as fuel), because these two very important products can be obtained at the same time, this technical route has attracted the attention of many researchers. At present, the main product of this technology is graphitized nano-carbon material with high added value. This product has good electronic and mechanical properties, chemical inertness and biocompatibility, and is widely used in engineering, electronics, che...

Claims

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Application Information

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IPC IPC(8): B01D47/00B01D53/26C01B32/15
CPCB01D47/00B01D53/26B01D2257/80Y02P20/10Y02P70/10
Inventor 朱卫中张卫珂王学霞张敏王烨敏
Owner SHANXI ZHONGXING HUANNENG TECH CO LTD
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