You are here
INVESTIGATING THE POTENTIAL OF AMINE-GRAFTED SILICA MATERIALS FOR SIMULTANEOUS REMOVAL OF CARBON DIOXIDE, WATER VAPOR, AND HYDROGEN SULFIDE FROM LANDFILL GAS
- Date Issued:
- 2023
- Abstract/Description:
- Amine-grafted silica (i.e., aminosilicas) was investigated for single-stage landfill gas purification via simultaneous removal of CO2, H2S, and water vapor. Aminosilica materials were synthesized by covalent triamine grafting onto mesoporous silica with custom amounts of water and amine. Screening adsorption experiments were completed in dry 30 vol.% CO2 in N2 at 40 °C and assessed using thermogravimetric analysis. Materials with equilibrium CO2 uptakes greater than 1.5 mmol/g were chosen for CO2 adsorption kinetics assessments. The highest-performing aminosilica achieved fast CO2 adsorption by reaching 80% of its equilibrium uptake in one minute. This material also maintained 100% of its initial CO2 uptake when subjected to rigorous 100-cycle testing. It underwent column-breakthrough tests in the presence of different dry and humid gas streams containing CO2, H2S, and water vapor, and achieved concurrent and complete (100%) removal of all target impurities. The results suggest that aminosilicas can purify landfill gas in a single stage.
Title: | INVESTIGATING THE POTENTIAL OF AMINE-GRAFTED SILICA MATERIALS FOR SIMULTANEOUS REMOVAL OF CARBON DIOXIDE, WATER VAPOR, AND HYDROGEN SULFIDE FROM LANDFILL GAS. |
![]() ![]() |
---|---|---|
Name(s): |
Lam, Dung , author Lashaki, Masoud Jahandar, Thesis advisor Florida Atlantic University, Degree grantor Department of Civil, Environmental and Geomatics Engineering College of Engineering and Computer Science |
|
Type of Resource: | text | |
Genre: | Electronic Thesis Or Dissertation | |
Date Created: | 2023 | |
Date Issued: | 2023 | |
Publisher: | Florida Atlantic University | |
Place of Publication: | Boca Raton, Fla. | |
Physical Form: | application/pdf | |
Extent: | 85 p. | |
Language(s): | English | |
Abstract/Description: | Amine-grafted silica (i.e., aminosilicas) was investigated for single-stage landfill gas purification via simultaneous removal of CO2, H2S, and water vapor. Aminosilica materials were synthesized by covalent triamine grafting onto mesoporous silica with custom amounts of water and amine. Screening adsorption experiments were completed in dry 30 vol.% CO2 in N2 at 40 °C and assessed using thermogravimetric analysis. Materials with equilibrium CO2 uptakes greater than 1.5 mmol/g were chosen for CO2 adsorption kinetics assessments. The highest-performing aminosilica achieved fast CO2 adsorption by reaching 80% of its equilibrium uptake in one minute. This material also maintained 100% of its initial CO2 uptake when subjected to rigorous 100-cycle testing. It underwent column-breakthrough tests in the presence of different dry and humid gas streams containing CO2, H2S, and water vapor, and achieved concurrent and complete (100%) removal of all target impurities. The results suggest that aminosilicas can purify landfill gas in a single stage. | |
Identifier: | FA00014182 (IID) | |
Degree granted: | Thesis (MS)--Florida Atlantic University, 2023. | |
Collection: | FAU Electronic Theses and Dissertations Collection | |
Note(s): | Includes bibliography. | |
Subject(s): |
Gases--Purification Landfill gases--Purification |
|
Persistent Link to This Record: | http://purl.flvc.org/fau/fd/FA00014182 | |
Use and Reproduction: | Copyright © is held by the author with permission granted to Florida Atlantic University to digitize, archive and distribute this item for non-profit research and educational purposes. Any reuse of this item in excess of fair use or other copyright exemptions requires permission of the copyright holder. | |
Host Institution: | FAU | |
Is Part of Series: | Florida Atlantic University Digital Library Collections. |