Regenerable Sorbents for High-Temperature Desulfurization of Syngas from Biomass Gasification |
| |
Authors: | Jianyu Ma Mehdi Mahmoodinia Kumar R Rout Edd A Blekkan |
| |
Affiliation: | 1. Norwegian University of Science and Technology (NTNU), Department of Chemical Engineering, 7491 Trondheim, Norway;2. SINTEF Industry, 7465 Trondheim, Norway |
| |
Abstract: | Single-metal high-temperature solid sorbents for syngas cleaning using Mn, Ca, Fe, Cu, or Mo supported on γ-Al2O3 were synthesized, characterized, and tested in a fixed-bed reactor. H2S and SO2 concentrations in the gas after treatment at T = 400 to 700 °C were compared with thermodynamic calculations. The Mn-based sorbent showed the best ability to achieve a low sulfur residual in the gas, especially at temperatures above 600 °C. Sorbents with Fe, Cu, and Mo gave SO2 formation in the initial phase, but this could be avoided by a pre-reduction treatment of the sorbent material. |
| |
Keywords: | High-temperature desulfurization H2S concentration SO2 formation Supported metals sorbent |
|
|