Abstract
The effectiveness of calcium acetate (CA) and calcium magnesium acetate (CMA) as feasible H2S capture agents was tested in an entrained flow reactor at temperatures up to 1100 °C. Both sorbents have the ability to form highly cenospheric oxide particles on heating to high temperatures. The thin, porous walls of the cenospheres make these sorbents a very attractive material to sulfur removal due to their high utilization. Sulfur capture up to 90%, near the thermodynamic equilibrium, was achieved with dry powder injection of CA and CMA at furnace gas temperatures of about 1000 and 800 °C, respectively, a Ca/S molar ratio of 2, and a residence time of 0.8 s. Although more expensive, the sulfur capture effectiveness of these sorbents was superior to any natural calcium-based sorbent. Moreover, because of the high porosities exhibited by CA and CMA, the sulfided sorbents can be easily stabilized and converted into an inert material before disposal. These qualities make them very attractive materials to remove H2S at high temperatures in the reducing atmospheres typical of the integrated gasification combined cycle (IGCC) processes.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
