Blast furnace gas desulfurization method and system
A blast furnace gas and desulfurization system technology, which is applied in combustible gas purification, removal of gas pollutants, combustible gas purification/reconstruction, etc., can solve the problem of high desulfurization cost, and achieve the effect of reducing desulfurization cost and improving service life.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0039] Example one
[0040] See figure 1 , figure 1 It is a schematic flow diagram of a blast furnace gas desulfurization method according to an embodiment of the present invention, such as figure 1 As shown, the method includes the following steps:
[0041] S1. Feed the compressed raw gas into a hydrolysis tower for COS hydrolysis to generate a mixed gas containing hydrogen sulfide;
[0042] S2. The mixed gas containing hydrogen sulfide is passed into the pressure swing adsorption and purification carbon dioxide device for crude desulfurization, to obtain crude desulfurization gas, and desorb the adsorbent that adsorbs carbon dioxide and hydrogen sulfide;
[0043] S3. Pass the crude desulfurization gas into the fine desulfurization tower for fine desulfurization to obtain fine desulfurization gas;
[0044] S4. The refined desulfurization gas is passed into the pressure swing adsorption purification carbon monoxide section, and the carbon monoxide is purified to obtain desulfurized blas...
Example Embodiment
[0047] Example two
[0048] See figure 2 , figure 2 Is a schematic diagram of the method flow of the second embodiment, such as figure 2 As shown, on the basis of Example 1, after the adsorbent that adsorbs carbon dioxide and hydrogen sulfide is desorbed, the blast furnace gas desulfurization method further includes:
[0049] S301: Pass the desorbed carbon dioxide and hydrogen sulfide into a carbon dioxide recovery device for carbon dioxide recovery processing.
[0050] Among them, the carbon dioxide recovery device can recover carbon dioxide while separating carbon dioxide and hydrogen sulfide, and can reuse the recovered carbon dioxide. Carbon dioxide can be adsorbed by a carbon dioxide adsorbent to separate carbon dioxide and hydrogen sulfide. The carbon dioxide adsorbent can be silica gel or a molecular sieve corresponding to carbon dioxide adsorption. After the hydrogen sulfide is separated, the carbon dioxide adsorbent is desorbed to recover the carbon dioxide.
Example Embodiment
[0051] Example three
[0052] See image 3 , image 3 It is a schematic flow chart of the method of the third embodiment. On the basis of the first embodiment, as image 3 As shown, the specific crude desulfurization includes the following steps:
[0053] S201: Raise the pressure in the pressure swing adsorption and purification carbon dioxide device to a preset first pressure value;
[0054] S202. Under the first pressure value, the adsorbent absorbs carbon dioxide and hydrogen sulfide under high pressure to complete crude desulfurization.
[0055] Wherein, the above-mentioned first pressure value is set in advance, which can facilitate the operation, and the above-mentioned first pressure value may be in a range of 0.15Mpa. The aforementioned crude desulfurization can be understood as the removal of carbon dioxide and hydrogen sulfide. Since there is no need to generate elemental sulfur from hydrogen sulfide, the desorption rate of the adsorbent will be faster, and solid waste will...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap