skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Development of novel copper-based sorbents for hot-gas cleanup. Final technical report, 1 September 1992--31 August, 1993

Abstract

The objective of this investigation is to evaluate two novel copper-based sorbents, namely Cu-Cr and Cu-Ce, for their effectiveness in removing hydrogen sulfide from fuel gas in the temperature range of 650 to 850 C. Such high temperatures will be required for the new generation of gas turbines in Integrated Gasification Combined Cycle systems. Structural and kinetic studies were conducted on various compositions of the two Cu-based sorbents to determine the optimum sorbent composition. The effect to operating conditions on the performance of the sorbents along with the stability and regenerability of the selected sorbents in successive sulfidation/regeneration operation were determined. Overall, the CuO-lean binaries (with Cr{sub 2}O{sub 3} or CeO{sub 2}) may benefit the H{sub 2}S breakthrough levels. While this is at the expense of sulfur capacity for the Cu-Cr-O sorbents, it may not affect the capacity of the Cu-Ce-O sorbents. Parametric multicycle desulfurization tests were conducted in a bench-scale quartz reactor at one atmosphere using the CuCr{sub 2}O{sub 4} and CuO-CeO{sub 2} sorbents. The parameters studied included temperature, space velocity, and feed gas composition. Both sorbents were able to reduce the H{sub 2}S concentration of the reactor feed gas from 5,000 ppmv to less than 1 ppmv tomore » 10 ppmv at 750 to 850 C. Both sorbents were found to consume H{sub 2} and produce SO{sub 2} during the initial stages of sulfidation. Analysis of partially sulfided samples identified predominantly Cu metal, the additive oxide and small amounts of oxidic copper. For the Cu-Cr-O sorbents, the latter is apparently sufficient to keep the H{sub 2}S pre-breakthrough levels as low as has been reported in this work. For the Cu-Ce-O sorbents, in which very little or no oxidic copper remained, the low H{sub 2}S levels may be due to the participation of CeO{sub 2}, whose sulfidation is promoted by Cu.« less

Authors:
;  [1];  [2]
  1. Institute of Gas Technology, Chicago, IL (United States)
  2. Massachusetts Inst. of Tech., Cambridge, MA (United States)
Publication Date:
Research Org.:
Illinois Dept. of Energy and Natural Resources, Springfield, IL (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
10132236
Report Number(s):
DOE/PC/92521-T93
ON: DE94008035; BR: AV0100000/AV0102000; TRN: AHC29406%%19
DOE Contract Number:  
FC22-92PC92521
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: [1993]
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; HOT GAS CLEANUP; ADSORBENTS; PERFORMANCE TESTING; FUEL GAS; DESULFURIZATION; COPPER OXIDES; SULFIDATION; CHROMIUM OXIDES; CERIUM OXIDES; PROGRESS REPORT; COMBINED-CYCLE POWER PLANTS; COAL GASIFICATION; STRUCTURAL CHEMICAL ANALYSIS; SORPTIVE PROPERTIES; PHYSICAL PROPERTIES; EXPERIMENTAL DATA; 010402; PURIFICATION AND UPGRADING

Citation Formats

Hill, A.H., Abbasian, J., and Flytzani-Stephanopoulos, M. Development of novel copper-based sorbents for hot-gas cleanup. Final technical report, 1 September 1992--31 August, 1993. United States: N. p., 1993. Web. doi:10.2172/10132236.
Hill, A.H., Abbasian, J., & Flytzani-Stephanopoulos, M. Development of novel copper-based sorbents for hot-gas cleanup. Final technical report, 1 September 1992--31 August, 1993. United States. doi:10.2172/10132236.
Hill, A.H., Abbasian, J., and Flytzani-Stephanopoulos, M. Fri . "Development of novel copper-based sorbents for hot-gas cleanup. Final technical report, 1 September 1992--31 August, 1993". United States. doi:10.2172/10132236. https://www.osti.gov/servlets/purl/10132236.
@article{osti_10132236,
title = {Development of novel copper-based sorbents for hot-gas cleanup. Final technical report, 1 September 1992--31 August, 1993},
author = {Hill, A.H. and Abbasian, J. and Flytzani-Stephanopoulos, M.},
abstractNote = {The objective of this investigation is to evaluate two novel copper-based sorbents, namely Cu-Cr and Cu-Ce, for their effectiveness in removing hydrogen sulfide from fuel gas in the temperature range of 650 to 850 C. Such high temperatures will be required for the new generation of gas turbines in Integrated Gasification Combined Cycle systems. Structural and kinetic studies were conducted on various compositions of the two Cu-based sorbents to determine the optimum sorbent composition. The effect to operating conditions on the performance of the sorbents along with the stability and regenerability of the selected sorbents in successive sulfidation/regeneration operation were determined. Overall, the CuO-lean binaries (with Cr{sub 2}O{sub 3} or CeO{sub 2}) may benefit the H{sub 2}S breakthrough levels. While this is at the expense of sulfur capacity for the Cu-Cr-O sorbents, it may not affect the capacity of the Cu-Ce-O sorbents. Parametric multicycle desulfurization tests were conducted in a bench-scale quartz reactor at one atmosphere using the CuCr{sub 2}O{sub 4} and CuO-CeO{sub 2} sorbents. The parameters studied included temperature, space velocity, and feed gas composition. Both sorbents were able to reduce the H{sub 2}S concentration of the reactor feed gas from 5,000 ppmv to less than 1 ppmv to 10 ppmv at 750 to 850 C. Both sorbents were found to consume H{sub 2} and produce SO{sub 2} during the initial stages of sulfidation. Analysis of partially sulfided samples identified predominantly Cu metal, the additive oxide and small amounts of oxidic copper. For the Cu-Cr-O sorbents, the latter is apparently sufficient to keep the H{sub 2}S pre-breakthrough levels as low as has been reported in this work. For the Cu-Ce-O sorbents, in which very little or no oxidic copper remained, the low H{sub 2}S levels may be due to the participation of CeO{sub 2}, whose sulfidation is promoted by Cu.},
doi = {10.2172/10132236},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1993},
month = {12}
}