Development of advanced hot-gas desulfurization sorbents

Technical Report · Wed Nov 01 04:00:00 EST 1995

DOI:https://doi.org/10.2172/125003· OSTI ID:125003

Jothimurugesan, K; Adeyiga, A A; Gangwal, S K

The objective of this study is to develop hot-gas cleanup sorbents for relatively lower temperature application, with emphasis on the temperature applications, with emphasis on the temperature range from 343--538 C. A number of formulations will be prepared and screened for testing in a 1/2-inch fixed bed reactor at high pressure (1 to 20 atm) and high temperatures using simulated coal-derived fuel-gases. Screening criteria will include, chemical reactivity, stability, and regenerability over the temperature range of 343 C to 538 C. Each formulation will be tested for up to 5 cycles of absorption and regeneration. To prevent sulfation, catalyst additives will be investigated, which would promote a lower ignition of the regeneration. Selected superior formulation will be tested for long term (up to at least 30 cycles) durability and chemical reactivity in the reactor. Zinc oxide based sorbents were prepared and characterized as fresh, sulfided, and regenerated sorbents. Results are presented.

• Research Organization: Hampton Univ., VA (United States). Dept. of Engineering
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: FG21-94MC31393
• OSTI ID: 125003
• Report Number(s): DOE/MC/31393--96/C0546; CONF-9506162--24; ON: DE96004007
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
ABSORPTION SPECTROSCOPY
ACTIVATION ENERGY
ADSORBENTS
COAL GASIFICATION
DESULFURIZATION
EXPERIMENTAL DATA
FUEL GAS
HOT GAS CLEANUP
HYDROGEN SULFIDES
MATERIALS TESTING
POROSIMETERS
REGENERATION
REMOVAL
SORPTIVE PROPERTIES
SULFIDATION
SURFACE AREA
X-RAY DIFFRACTION
ZINC OXIDES