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Fume purification equipment and preparation method of sulfuric acid

A flue gas purification and equipment technology, applied in chemical instruments and methods, separation methods, inorganic chemistry, etc., can solve problems such as high energy consumption and no economic value

Active Publication Date: 2013-07-10
CHINA NERIN ENG
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The biggest disadvantage of this method is that the energy consumption is extremely high, and there is almost no economic value in the sense of industrial use.
[0004] Therefore, the current flue gas purification equipment needs to be improved

Method used

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  • Fume purification equipment and preparation method of sulfuric acid
  • Fume purification equipment and preparation method of sulfuric acid
  • Fume purification equipment and preparation method of sulfuric acid

Examples

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Embodiment Construction

[0037] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention. In addition, the positions and sizes of elements shown in the drawings are also exemplary and cannot be construed as limiting the present invention.

[0038] The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, components and arrangements of specific examples are described below. Of course, they are only examples and are not intended to limit the invention. Furthermore, the present invention may repeat ...

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Abstract

The invention provides fume purification equipment comprising a sulfur dioxide absorbing device, a first buffering device and a sulfur dioxide desorbing device, wherein the sulfur dioxide absorbing device is filled with a sulfur dioxide absorbent and is provided with an absorbing device feeding hole and an absorbing device discharging hole; the first buffering device is provided with a holding tank for holding absorbent having absorbed sulfur dioxide and is provided with a first buffering device feeding hole and a first buffering device discharging hole, and the first buffering device feedinghole is in liquid connection with the absorbing device discharging hole and is used for receiving the absorbent having absorbed sulfur dioxide from the absorbing device; the sulfur dioxide desorbing device is provided with a desorbing device feeding hole and a desorbing device sulfur dioxide discharging hole, the desorbing device feeding hole is in liquid connection with the first buffering device discharging hole and used for receiving the absorbent having absorbed sulfur dioxide from the first buffering device, and the desorbing device is further provided with a heating device for releasingsulfur dioxide by raising the temperature. The fume purification equipment provided by the invention can enrich and recycle sulfur dioxide from fume. The invention also provides a method for preparing sulfur acid from fume.

Description

technical field [0001] The invention relates to the field of environmental protection, in particular, the invention relates to a flue gas purification device and a method for preparing sulfuric acid. Background technique [0002] Smoke is a mixture of gas and smoke and is the main cause of air pollution in residential areas. The composition of flue gas is very complex, including sulfur dioxide, carbon monoxide, carbon dioxide and so on. The pollution of flue gas to the environment is the compound pollution of various poisons. The sulfur dioxide in the flue gas can be converted into sulfur trioxide and absorbed by water to prepare sulfuric acid. However, due to the low concentration of sulfur dioxide in the flue gas, it cannot meet the needs of the contact method for the preparation of sulfuric acid. [0003] Generally, sulfur-containing minerals such as sulfur and pyrite can be burned to produce high-concentration sulfur dioxide flue gas, which is different from the exist...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/18C01B17/74C01B17/56
Inventor 黄卫华顾鹤林余磊陈志刚
Owner CHINA NERIN ENG
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