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Method and device for decomposing CO2 and H2O through thermo-chemistry circulation reaction system

A thermochemical cycle and reaction system technology, applied in chemical instruments and methods, separation methods, dispersed particle separation, etc., can solve the problems of catalytic hydrogenation reaction conversion rate and yield are not too high, difficult to popularize and apply, etc., to achieve Large-scale industrial application, appropriate reaction temperature, and the effect of easy large-scale industrial application

Active Publication Date: 2012-07-11
浙江百能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Normally, CO 2 The conversion rate and yield of catalytic hydrogenation reaction are not too high, and it is still difficult to popularize and apply on an economical scale

Method used

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  • Method and device for decomposing CO2 and H2O through thermo-chemistry circulation reaction system
  • Method and device for decomposing CO2 and H2O through thermo-chemistry circulation reaction system

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0044] (1) 14molH 2 O, 1.5molI 2 and 1molSO 2 Send it into the Bunsen reaction device 1, stir the reaction solution at a constant speed by the motor device to ensure that it is evenly mixed, and an autonomous exothermic reaction occurs at 20 ° C and 1 atm to produce a watery HI phase (HI x ) and H 2 SO 4 Phase solution, in which the HI phase mainly contains hydrogen iodide solution and excess iodine, H 2 SO 4 Phase mainly contains H 2 SO 4 Solution, the chemical reaction formula of this reaction is as follows:

[0045] I 2 +SO 2 +2H 2 O→2HI+H 2 SO 4

[0046] (2) the two solutions in the Bunsen reaction unit 1 are separated in the liquid phase separation unit 2, H 2 SO 4 Phase in H 2 SO 4 After being concentrated in the concentration device 5, it enters the concentrated H 2 SO 4 In the catalytic decomposition device 6, it is first decomposed into SO at 350°C 3 and H 2 O, generated SO 3 Catalytic decomposition at 800°C to generate SO 2 and O 2 , the final...

specific Embodiment 2

[0056] (1) 15molH 2 O, 5molI 2 and 1molSO 2 Send it into the Bunsen reaction device 1, stir the reaction solution at a constant speed by the motor device to ensure that it is evenly mixed, and an autonomous exothermic reaction occurs at 70 ° C and 1.5 atm, producing a HI phase with more water (HI x ) and H 2 SO 4 Phase solution, in which the HI phase mainly contains hydrogen iodide solution and excess iodine, H 2 SO 4 Phase mainly contains H 2 SO 4 Solution, the chemical reaction formula of this reaction is as follows:

[0057] I 2 +SO 2 +2H 2 O→2HI+H 2 SO 4

[0058] (2) the two solutions in the Bunsen reaction unit 1 are separated in the liquid phase separation unit 2, H 2 SO 4 Phase in H 2 SO 4 After being concentrated in the concentration device 5, it enters the concentrated H 2 SO 4 In the catalytic decomposition device 6, it is first decomposed into SO at 350°C 3 and H 2 O, generated SO 3 Catalytic decomposition at 850°C to generate SO 2 and O 2 , ...

specific Embodiment 3

[0068] (1) 16molH 2 O, 9molI 2 and 1molSO 2 Send it into the Bunsen reaction device 1, stir the reaction solution at a constant speed by the motor device to ensure that it is evenly mixed, and an autonomous exothermic reaction occurs at 120 ° C and 2 atm to produce a watery HI phase (HI x ) and H 2 SO 4 Phase solution, in which the HI phase mainly contains hydrogen iodide solution and excess iodine, H 2 SO 4 Phase mainly contains H 2 SO 4 Solution, the chemical reaction formula of this reaction is as follows:

[0069] I 2 +SO 2 +2H 2 O→2HI+H 2 SO 4

[0070] (2) the two solutions in the Bunsen reaction unit 1 are separated in the liquid phase separation unit 2, H 2 SO 4 Phase in H 2 SO 4 After being concentrated in the concentration device 5, it enters the concentrated H 2 SO 4 In the catalytic decomposition device 6, it is first decomposed into SO at 350°C 3 and H 2 O, generated SO 3 Catalytic decomposition at 900°C to generate SO 2 and O 2 , the final ...

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Abstract

The invention relates to the technology of CO2 emission reduction and aims at providing a method and a device for decomposing CO2 and H2O through a thermo-chemistry circulation reaction system. The method includes: leading H2O, I2 and SO2 to a Bunsen reaction device for a spontaneous heat producing reaction, and leading CO2 to a fixed bed or a fluid bed reactor to produce a heat producing reaction with metal Zn or Ni. Products of all the reactions are recycled and used through the reaction devices and the final products are H2, CO and O2. The maximum heat source temperature is relatively low (lower than 900 DEG C), and other type of heat sources including solar energy, nuclear energy and the like can be used. Negative influence caused by incomplete reactions of Zn and CO2 is reduced, reaction temperature is proper, and scale industry application can be achieved easily.

Description

technical field [0001] The invention relates to a new method and technological process for decomposing carbon dioxide and water in a thermochemical cycle reaction system. Background technique [0002] Currently, CO 2 Emissions are getting more and more attention, how to effectively reduce CO 2 Emissions have become an important political and economic issue around the world. Countries such as the United States, the United Kingdom, and Germany have all studied and formulated CO 2 Emission regime, Japan accelerated CO 2 The research on comprehensive utilization is planned to be established in 10 years based on CO 2 An independent industrial system for chemical raw materials. Currently looking at CO 2 On the one hand, the measures that can be taken to reduce emissions are to reduce emissions and control increments: including adjusting the energy structure, using low-carbon energy, vigorously developing clean energy such as nuclear energy, hydrogen energy, and wind energy, ...

Claims

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Application Information

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IPC IPC(8): B01D53/75B01D53/62
CPCY02A50/20
Inventor 周俊虎张彦威岑可法王智化刘建忠周志军黄镇宇杨卫娟程军
Owner 浙江百能科技有限公司
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