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A kind of ch4-co2 catalytic reforming reaction device and its technology

A CH4-CO2, catalytic reforming technology, applied in the field of catalytic synthesis, can solve the problems of carbon deposition and other problems, achieve high reaction conversion rate, overcome catalyst deactivation, and eliminate carbon deposition effects

Inactive Publication Date: 2015-09-16
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problems in the above-mentioned prior art, such as catalyst deactivation caused by carbon deposition, large investment in equipment, low conversion rate and production rate, difficulty in putting into production of equipment, etc., the present invention provides a continuous carbon catalytic reforming with negative ion generator Reaction device to solve the problem of carbon deposition in the reforming catalytic process

Method used

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  • A kind of ch4-co2 catalytic reforming reaction device and its technology
  • A kind of ch4-co2 catalytic reforming reaction device and its technology

Examples

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Effect test

Embodiment 1

[0031] Example 1: CH 4 -CO 2 Catalytic reforming reaction device and reaction principle

[0032] CH provided by the present invention 4 -CO 2 Catalytic reforming reaction device, such as Figure 1~2Shown, comprise feed pipe, gas mixer, reactor, feed pipe comprises methane feed pipe 1, carbon dioxide feed pipe 2, methane feed pipe 1 and carbon dioxide feed pipe 2 merge into feed main pipe 5, enter The feed main pipe 5 is connected to the gas mixer 7 and the reactor 8 in turn, and the feed main pipe 5 is connected to the first anion generator 4, and the other end of the feed main pipe 5 is connected to the reactor 8 through the gas mixer 7; the reactor 8 It is a multi-cylinder reactor, and the reactor is provided with an inner cylinder 13 and an outer cylinder 14 to divide the reactor into an inlet chamber 16, an inner annular chamber 17, and an outer annular chamber 18; the inner cylinder 13 is fixed on the reactor 8 On the lower bottom plate of the reactor 8, the inner si...

Embodiment 2

[0045] Example 2: CH 4 -CO 2 Catalytic reforming reaction process

[0046] According to above-mentioned reaction technique, one group of concrete embodiment is provided:

[0047] Include the following steps:

[0048] (1) Feed:

[0049] The flow rate of oxygen entering the first negative ion generator is 0.15L / min, the flow rate of methane is 1L / min, and the flow rate of carbon dioxide is 0.7L / min; and the methane and carbon dioxide are preheated to about 500°C; the feed pipes are opened at the same time, and the material ratio Be methane: carbon dioxide: the intake air volume of the first anion generator=1:0.7:0.15;

[0050] (2) Initial reaction and activation:

[0051] The activation and preliminary reaction are completed in the mixer; the preliminary reaction time is about 3~5s;

[0052] (3) Reforming reaction: The temperature in the reactor is controlled at 950°C and the pressure is 2MPa. Under the action of the catalyst, the material passes through the in...

Embodiment 3

[0054] Example 3: CH 4 -CO 2 Catalytic reforming reaction process

[0055] According to above-mentioned reaction technique, one group of concrete embodiment is provided:

[0056] Include the following steps:

[0057] (1) Feed:

[0058] The flow rate of oxygen entering the first negative ion generator is 0.5L / min, the flow rate of methane is 10L / min, and the flow rate of carbon dioxide is 13L / min; and the methane and carbon dioxide are preheated to about 500°C; the material ratio is methane: carbon dioxide: first Intake volume of negative ion generator = 1:1.3:0.05;

[0059] (2) Initial reaction and activation:

[0060] The activation and preliminary reaction are completed in the mixer; the preliminary reaction time is about 3~5s;

[0061] (3) Reforming reaction: The temperature in the reactor is controlled at 950°C and the pressure is 2MPa. Under the action of the catalyst, the material passes through the inlet chamber, the inner annular chamber, and the oute...

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Abstract

The invention discloses a CH4-CO2 catalytic reforming reaction device and a process thereof and particularly relates to a multi-cylinder CH4-CO2 catalytic reforming reaction device with negative ion generators and a process of preparing a synthesized gas with negative ions participating reaction, belonging to the technical field of catalyzed synthesis. According to the device disclosed by the invention, negative ion generators are arranged on an upper panel, a lower bottom plate and a main feeding pipe of the multi-cylinder catalytic reforming reaction device; methane and carbon dioxide as well as negative ions generated by the negative ion generators are introduced into a gas mixture and fed to a reforming reactor for reaction after being uniformly mixed; the negative ion generators arranged on the upper panel and the lower bottom plate of the reforming reactor are used for supplementing negative ions consumed in the early stage, and an synthesis gas outlet is formed in the upper part on the outer wall of the reforming reactor. The device disclosed by the invention not only can activate methane and carbon dioxide to increase the reforming conversion rate, but also further can eliminate carbon deposition generated in the reaction process so as to overcome the problem of catalyst deactivation caused by carbon deposition, thereby prolonging the service life of a catalyst and saving the investment.

Description

technical field [0001] The present invention relates to a CH 4 -CO 2 Catalytic reforming reaction device and technology thereof, in particular to a multi-tubular CH with negative ion generator 4 -CO 2 The invention relates to a catalytic reforming reaction device and a process for preparing synthesis gas with negative ions participating in the reaction, belonging to the technical field of catalytic synthesis. Background technique [0002] The synthesis gas prepared from methane and carbon dioxide is an important raw material for methanol and its products; methane and carbon dioxide are also important components of the greenhouse effect. The reforming reaction of the two gases can effectively reduce greenhouse gas emissions and is an important part of green chemical industry. Good prospects; but during the reforming reaction, methane is easily cracked into carbon and hydrogen, and carbon deposition on the catalyst will easily cause catalyst deactivation, thereby shortening...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B3/38B01J8/00
CPCY02P20/141Y02P20/52
Inventor 张国杰苏爱廷屈江文王仲英徐英谷红兵叶峻岭张永发
Owner TAIYUAN UNIV OF TECH
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