Hot gas desulfurization with Phillips Z-Sorb sorbent in moving bed and fluidized bed reactors

Journal Article · Tue Aug 01 04:00:00 EDT 1995 · Environmental Progress

DOI:https://doi.org/10.1002/ep.670140312· OSTI ID:121718

Khare, G P; Delzer, G A; Kubicek, D H ^[1]

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1. Phillips Research Center, Bartlesville, OK (United States); and others

Phillips Z-Sorb sorbents have been evaluated successfully as regenerable sorbents for hydrogen sulfide in the fuel gas that is produced in a clean coal technology power plant. Tests have been carried out in fixed-,moving-, and fluid-bed applications. The fixed-bed tests completed at the Morgantown Energy Technology Center showed that Phillips Z-Sorb sorbent performed better than zinc titanate. The performance of Phillips Z-Sorb sorbent in a moving-bed application was very encouraging. The sorbent flowed well, H{sub 2}S was reduced to less than 50 ppm at the absorber outlet over long periods and post-test analysis of the sorbent indicated very low sulfate levels at the regenerator exit. The fluidizable version of Phillips Z-Sorb sorbent was tested in Research Triangle Institutes`s high temperature, high pressure, semi-bath, fluidized-bed reactor system. in a life cycle test consisting of 50 cycles of sulfidation and regeneration, this sorbent exhibited excellent activity and regenerability. The sulfur loading was observed to be 90 + percent of the theoretical capacity. The sorbent consistently demonstrated a sharp regeneration profile with no evidence of sulfate accumulation. 7 refs., 7 fig., 5 tabs.

• Sponsoring Organization: USDOE
• OSTI ID: 121718
• Journal Information: Environmental Progress, Journal Name: Environmental Progress Journal Issue: 3 Vol. 14; ISSN 0278-4491; ISSN ENVPDI
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
ADSORPTION
COAL
DESULFURIZATION
FUEL GAS
HYDROGEN SULFIDES
PERFORMANCE TESTING
POLLUTION CONTROL
SORBENT INJECTION PROCESSES
SULFIDATION