Method and device for thermo chemolysis of CO2 and H2O based on reaction substance circulation

A technology of reaction device and reaction substance, which is applied in chemical instruments and methods, separation methods, and separation of dispersed particles, etc., can solve the problems of high decomposition temperature of metal oxides, achieve easy large-scale industrial application, appropriate reaction temperature, and reduce negative effects Effect

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

However, experiments have shown that the decomposition temperatures of common metal oxides are relatively high

Method used

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  • Method and device for thermo chemolysis of CO2 and H2O based on reaction substance circulation
  • Method and device for thermo chemolysis of CO2 and H2O based on reaction substance circulation

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0043] (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:

[0044] I 2 +SO 2 +2H 2 O→2HI+H 2 SO 4

[0045] (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 4, it enters the concentrated H 2 SO 4 In the catalytic decomposition device 5, 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

[0053] (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:

[0054] I 2 +SO 2 +2H 2 O→2HI+H 2 SO 4

[0055] (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 4, it enters the concentrated H 2 SO 4 In the catalytic decomposition device 5, 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

[0063] (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:

[0064] I 2 +SO 2 +2H 2 O→2HI+H 2 SO 4

[0065] (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 4, it enters the concentrated H 2 SO 4 In the catalytic decomposition device 5, 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 a CO2 emission reduction technology and aims at providing a method and a device for thermo chemolysis of CO2 and H2O based on reaction substance circulation. The method comprises the steps of feeding the H2O, I2 and SO2 into a Bunsen reaction device for automatic heat release reaction; communicating CO2 gas to a static bed or a fluid bed reactor for heat release reaction with metal Zn or Ni; circulating the products in each reaction process through each reaction device, wherein the final products are H2, CO and O2. The device provided by the invention has a lower maximum heat resource temperature (less than 900 DEG C); heat resources, such as solar energy, nuclear energy and other types can be used; negative influence caused by incomplete reaction of Zn and CO2 is reduced to a certain extent; the device is appropriate in reaction temperature and easy to realize industrial application in scale.

Description

technical field [0001] The present invention relates to the thermochemical decomposition of CO based on the circulation of reacting species 2 and H 2 O's new method and technological process. 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 en...

Claims

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Application Information

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Patent Type & Authority Applications(China)
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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