Flue gas desulfurization method
A flue gas and desulfurizing agent technology, which is applied in the field of flue gas desulfurization, can solve the problems of difficult reuse of by-products and generate carbon dioxide, and achieves the effect of increasing economic benefits and reducing costs
Active Publication Date: 2010-09-22
CHINA ENFI ENGINEERING CORPORATION
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Problems solved by technology
For this reason, an object of the present invention is to propose a kind of flue gas desulfurization method that can solve the problem that the by-product is difficult to reuse and produce carbon dioxide and the desulfurizer can be recycled
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[0027] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary, and are only used to explain the present invention, and cannot be construed as limiting the present invention.
[0028] In the description of the present invention, the terms "upper", "lower", "top", "bottom", "above", "below", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention rather than requiring that the present invention must be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present invention.
[0029] In additio...
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The invention provides a flue gas desulfurization method, which comprises the following steps: supplying the flue gas to the interior of an absorption tower from the lower part of the absorption tower; supplying a poor desulfurizer to the interior of the absorption tower from the top part of the absorption tower to be contacted with flue gas upstream, controlling the temperature in the absorptiontower to the preset temperature to enable the desulfurizer to absorb sulfur dioxide in the flue gas; discharging the clean flue gas which is removed with sulfur dioxide from the top part of the absorption tower; discharging a rich desulfurizer absorbing sulfur dioxide from the bottom part of the absorption tower, heating the rich desulfurizer discharged from the bottom part of the absorption tower, sending the rich desulfurizer into the interior of a regeneration tower from the upper part thereof so as to enable the rich desulfurizer to parse out the absorbed sulfur dioxide; and discharging the poor desulfurizer which is parsed with sulfur dioxide and the parsed sulfur dioxide. The flue gas desulfurization method of the invention can remove sulfur dioxide in the flue gas, at the same time, can produce the byproduct of sulfur dioxide with high purity, the byproduct can be used as a good raw material for producting liquid sulfur dioxide, sulfuric acid, sulfur and other chemical products, and valuable sulfur resource can be recycled.
Description
Technical field [0001] The invention relates to a flue gas desulfurization method, in particular to a flue gas desulfurization method capable of regenerating a desulfurizer. Background technique [0002] Sulfur dioxide pollution has become an important factor restricting the sustainable development of my country's economy and society. Therefore, it is imperative to control sulfur dioxide pollution. At present, three desulfurization methods can be used according to the different parts of the desulfurization process in the production. Desulfurization before combustion, desulfurization during combustion and desulfurization after combustion can be used. Among them, the flue gas desulfurization after combustion is the main method used in the world to control sulfur dioxide gas pollution. There are many kinds of desulfurization technologies, which can be roughly divided into three types: dry, semi-dry and wet according to the reaction state of the desulfurization process. Among them,...
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IPC IPC(8): B01D53/78B01D53/50B01D53/96
Inventor 岳焕玲王姣孟昭华李建舟谢谦魏甲明刘君高飞
Owner CHINA ENFI ENGINEERING CORPORATION