Absorbent for selectively absorbing sulfur dioxide and application thereof
A sulfur dioxide and absorbent technology, which is applied in chemical instruments and methods, dispersed particle separation, separation methods, etc., can solve the problem that the absorption rate cannot be maintained at a high level for a long time, which is not conducive to the subsequent utilization of regenerated acid gas, and the increase in solvent circulation and other issues, to achieve the effect of being conducive to recycling, anti-oxidation ability, not easy to foam, and good thermal stability
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0059] Example 1:
[0060] This embodiment provides an SO of the present invention 2 Absorbent, and evaluate its selection performance and regeneration performance.
[0061] The absorbent composition is as follows:
[0062] N,N,N,N-tetramethylethylenediamine, mass percentage 10%;
[0063] Piperazine, 15% by mass;
[0064] The total molar ratio of sulfuric acid to N,N,N,N-tetramethylethylenediamine and piperazine is (0.5~0.6):1;
[0065] Hydroquinone, 0.2% by mass;
[0066] Ethylenediamine, mass percentage 5%;
[0067] Water, margin.
[0068] The SO 2 The initial pH of the absorbent is 4.5 to 6.0.
[0069] Absorb SO 2 Operating conditions:
[0070] Temperature: 50℃, pressure: absolute pressure 0.1MPa,
[0071] Mixture composition: SO 2 2.0Vol% (volume percentage, the same below), CO 2 10.0Vol%, O 2 3.0Vol%;
[0072] Body flow rate 300mL / min;
[0073] The amount of absorbent is 50mL.
[0074] Regenerative SO 2 Operating conditions:
[0075] Temperature: 100°C, pressure: absolute pressure 0.1MPa.
[0...
Example Embodiment
[0080] Example 2:
[0081] This embodiment provides an SO of the present invention 2 Absorbent, and evaluate its selection performance and regeneration performance.
[0082] The absorbent composition is as follows:
[0083] N,N,N,N-tetrahydroxyethyl ethylenediamine, mass percentage 10%;
[0084] Piperazine, 15% by mass
[0085] The total molar ratio of sulfuric acid to N,N,N,N-tetramethylethylenediamine and piperazine is (0.5~0.6):1;
[0086] Hydroquinone, 0.1% by mass;
[0087] Ethylenediamine, 3% by mass;
[0088] Water, margin.
[0089] The SO 2 The initial pH of the absorbent is 4.5 to 6.0.
[0090] Absorb SO 2 Operating conditions:
[0091] Temperature: 60℃, pressure: absolute pressure 0.1MPa,
[0092] Mixture composition: SO 2 2.0Vol% (volume percentage, the same below), CO 2 10.0Vol%, O 2 3.0Vol%;
[0093] The volume flow rate is 300mL / min,
[0094] The amount of absorbent is 50mL.
[0095] Regenerative SO 2 Operating conditions:
[0096] Temperature: 100°C, pressure: absolute pressure 0.1M...
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