- Title
- The role of SO₂ in the Chemistry of Amine-based CO₂ Capture in PCC
- Creator
- Beyad, Yaser; Burns, Robert; Puxty, Graeme; Maeder, Marcel
- Relation
- Energy Procedia Vol. 37, p. 1262-1266
- Publisher Link
- http://dx.doi.org/10.1016/j.egypro.2013.05.225
- Publisher
- Elsevier BV
- Resource Type
- journal article
- Date
- 2013
- Description
- Most coals contain a certain amount of sulfur. Upon combustion most of the sulfur is initially oxidized to SO₂ and later to SO₃ and sulfuric acid. If gaseous SO₂ enters the PCC (post combustion capture) plant it is immediately absorbed into the amine solution and transformed initially into sulfurous acid which dissociates into protons and the sulfite ion, SO₃²⁻. The protons and sulfite remain in the amine solution and is slowly accumulating over time. In this investigation we investigated the long term effect of dissolved SO₂ in MEA (monoethanolamine) solutions kept at 100°C; we investigated the effect by following the NMR spectrum of the solution. Additionally we modeled the effect of increasing amounts of accumulated SO₂ on the cyclic capacity of the MEA solution as well as the reaction kinetics of dissolved CO₂.
- Subject
- PCC; monoethanolamine; sulfur dioxide; cyclic capacity; kinetics
- Identifier
- http://hdl.handle.net/1959.13/1063263
- Identifier
- uon:17237
- Identifier
- ISSN:1876-6102
- Language
- eng
- Reviewed
- Hits: 1315
- Visitors: 1244
- Downloads: 0
Thumbnail | File | Description | Size | Format |
---|