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Decarbonizing composition and method for flue gas and preparation method of decarbonizing composition

A composition and decarbonization technology, applied in separation methods, chemical instruments and methods, air quality improvement, etc., can solve problems such as slow absorption speed, high desorption energy consumption, and low desorption rate, and achieve good results and low desorption energy consumption Low, high desorption effect

Active Publication Date: 2017-10-20
PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the above-mentioned existing flue gas decarbonization absorbents contain CO 2 A series of problems such as slow absorption speed, low desorption rate, and high desorption energy consumption

Method used

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  • Decarbonizing composition and method for flue gas and preparation method of decarbonizing composition
  • Decarbonizing composition and method for flue gas and preparation method of decarbonizing composition
  • Decarbonizing composition and method for flue gas and preparation method of decarbonizing composition

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preparation example Construction

[0053] The present invention provides a method for preparing the flue gas decarbonization composition as described in the above technical solution, comprising:

[0054] The main absorbent, activator, corrosion inhibitor and water are mixed to obtain the flue gas decarbonization composition.

[0055] In the preparation method of the flue gas decarbonization composition provided by the invention, the main absorbent, the activator and the corrosion inhibitor are added into water to obtain the flue gas decarbonization composition.

[0056] When an antioxidant is also included, the flue gas decarbonization composition is obtained by mixing the main absorbent, the activator, the antioxidant, the corrosion inhibitor and water. That is, the flue gas decarbonization composition can be obtained by adding the main absorbent, the activator, the antioxidant and the corrosion inhibitor into the water.

[0057] The present invention has clearly described the specific composition and proport...

Embodiment 1

[0076] This example is used to illustrate the flue gas decarbonizer provided by the present invention.

[0077] (1) The composition of the simulated flue gas is (volume): CO 2 : 16.25%; O 2 : 8.27%; H 2 O: 10.12%; N 2 : 63.01, CO: 2.35%; trace sulfides and nitrogen oxides.

[0078] (2) Preparation of flue gas decarburizer

[0079] Add 120 grams of diazabicyclooctane, 30 grams of tetraethylenepentamine, 5 grams of dodecyl hydroquinone, 3 grams of antimony potassium tartrate, and 2 grams of mono-oil imidazoline into 500 ml of water, and stir evenly. And use distilled water to quantify to 1000 grams, thereby obtain flue gas decarburizing agent.

[0080] (3) Flue gas decarbonization

[0081] The described decarburizing agent prepared in (2) of 1000 grams is heated to 50 ℃, with micro-vacuum pump, decarburizing agent is sent in the packed tower that glass mesh ring is housed from the upper end of packed tower, the described decarburizing agent in (1) The above simulated flue...

Embodiment 2

[0090] This example is used to illustrate the flue gas decarbonizer provided by the present invention.

[0091] (1) The composition of the simulated flue gas is (volume): CO 2 : 16.25%; O 2 : 8.27%; H 2 O: 10.12%; N 2 : 63.01, CO: 2.35%; trace sulfides and nitrogen oxides.

[0092] (2) Preparation of flue gas decarburizer

[0093]Add 120 grams of diazabicyclooctane, 30 grams of diethylenetriamine, 5 grams of dodecylhydroquinone, 3 grams of antimony potassium tartrate, and 2 grams of mono-oil imidazoline into 500 ml of water, stir evenly, And use distilled water to quantify to 1000 grams, thereby obtain flue gas decarburizing agent.

[0094] Steps (3) and (4) were carried out in the same manner as in Example 1 for decarburization of flue gas, desorption of decarburizer and determination of absorption capacity, desorption amount and desorption rate, and the results are listed in Table 1.

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Abstract

The invention provides a decarbonizing composition for flue gas. The decarbonizing composition comprises, by weight, 4-50 parts of main absorbing agent, 0.5-20 parts of activating agent, 0.5-5 parts of antioxidant and 25-95 parts of water, wherein the main absorbing agent is diazabicyclooctane; the activating agent is selected from one or more of diethylene triamine, triethylene tetramine, tetraethylene pentamine and triethylene diamine. The decarbonizing composition has the advantages that the diazabicyclooctane is used as the main absorbing agent, the diethylene triamine, the tetraethylene pentamine, the triethylene tetramine or the triethylene diamine is used as the activating agent, the main absorbing agent, the activating agent and components such as the antioxidant are combined according to a specific proportion to form the decarbonizing composition, and accordingly the decarbonizing composition is good in carbon dioxide removing effect, high in CO2 absorbing capacity, high in desorption rate and low in desorption energy consumption.

Description

technical field [0001] The invention relates to the technical field of gas separation and purification, in particular to a flue gas decarbonization composition and a flue gas decarbonization method. Background technique [0002] In recent decades, due to CO 2 Excessive emissions of excessive emissions have caused the temperature on the earth's surface to rise continuously, which has brought great harm to the environment. Various natural disasters have also intensified. The utilization of oil, coal and natural gas will produce CO 2 Various synthesizers in chemical, biological, energy, metallurgical and other industries, hydrogen energy preparation gas, biorefining exhaust gas, metallurgical and power plant exhaust gases, etc. also contain different concentrations of CO 2 , CO removal from the production link 2 It becomes an essential production process, reducing CO in terms of post-processing 2 The direct discharge of the pollutants is of great significance to the protecti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/14
CPCB01D53/1475B01D53/1493B01D2252/2053Y02A50/20Y02C20/40
Inventor 邱正秋
Owner PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
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