Flue gas absorption device applied to capturing of CO2 with reaction phase change type absorbent, and application method thereof

Abstract

The invention discloses a flue gas absorption device applied to the capturing of CO2 with a reaction phase change type absorbent, and an application method thereof. The flue gas absorption device comprises a compression assembly. The compression assembly comprises a cylinder, a fixed mount and a piston, wherein the top of a box is welded with the fixed mount; the bottom of the fixed mount is fixedly connected with the cylinder; and a gas rod of the cylinder is fixedly connected with the piston. The application method comprises the following steps that: a fan draws flue gas having been filteredby a filter net into a first tank body; the piston is driven by the gas rod of the cylinder to move into the first tank body so as to squeeze the flue gas to the bottom of the first tank body; the squeezed flue gas is filtered by an activated carbon filter net and then enters a second tank body; a valve is opened to allow an absorption liquid in a water tank to flow into the second tank body through a third water pipe; and the flue gas is fully mixed with the absorption liquid in virtue of air pressure of the cylinder, so the flue gas and the absorption liquid in the absorption device are effectively and sufficiently contacted and mixed, which enables the absorption effect of the flue gas to be improved.

Description

technical field [0001] The invention belongs to the technical field of flue gas absorption, in particular to a reactive phase change absorbent for capturing CO 2 Smoke absorption device and method of use. Background technique [0002] carbon dioxide, a carbon oxide with the chemical formula CO 2 , the chemical formula is 44.0095. It is a colorless, odorless or colorless, odorless and slightly sour gas at normal temperature and pressure. It is also a common greenhouse gas and one of the components of air. In terms of physical properties, carbon dioxide The melting point is -78.5°C, the boiling point is -56.6°C, the density is higher than that of air, and it is slightly soluble in water; in terms of chemical properties, carbon dioxide is chemically inactive, has high thermal stability, cannot burn, and usually does not support combustion. It is an acidic oxide, and has the properties of an acidic oxide. Because it reacts with water to form carbonic acid, it is an anhydride o...

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Problems solved by technology

[0002] Carbon dioxide, a carbon oxide, has the chemical formula CO 2 , with a chemical formula of 44.0095. It is a colorless, odorless or colorless, odorless and slightly sour gas at normal temperature and pressure. It is also a common greenhouse gas and one of the components of air. In terms of physical properties, carbon dioxide The melting point is -78.5°C, the boiling point is -56.6°C, the density is higher than that of air, and it is slightly soluble in water; in terms of chemical properties, carbon dioxide is chemically inactive, has high thermal stability, cannot burn, and usually does not support combustion. It belongs to acidic oxides and has the properties of acidic oxides. Because it reacts with water to form carbonic acid, it is the acid anhydride of carbonic acid; carbon dioxide can generally be produced by calcining limestone at high temperature or by reacting limestone with dilute hydrochloric acid. It is mainly used in cold storage and is perishable. food, as a refrigerant, as a solvent for carbonized soft drinks, and as a homogeneous reaction; regarding its toxicity, studies have shown that: low concentrations of carbon dioxide are not toxic, but high concentrations of carbon dioxide can poison animals; and the current smoke absorption The absorption effect of the device on the flue gas is not good, the flue gas and the absorption liquid in the absorption device cannot be fully contacted, and the flue gas cannot be fully purified

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