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Title: Development of novel copper-based sorbents for hot gas cleanup

Abstract

The objective of this investigation is to evaluate two novel copper-based sorbents (i.e. copper-chromium and copper-cerium) for their effectiveness in removing hydrogen sulfide from fuel gas in the temperature range of 650[degree] to 850[degree]C. New sorbent compositions from the selected Cu-Cr-O and Cu-Ce-O binary oxides were prepared and characterized by BET N[sub 2]-desorption surface area measurement following various calcination/time-temperature exposures. The general trends reported last quarter (on 11 different compositions) were validated this quarter in that both binary oxides lose surface area as the amount of CuO is increased. Time-resolved sulfidation tests were conducted at 850[degree]C using the equimolar CuO.Cr[sub 2]O[sub 3] composition. The two selected binary oxides prepared in larger qauntities (for testing in a two-inch reactor) have physical properties typical of the sorbents prepared in past programs. Two multicycle desulfurization tests, conducted this quarter on the Cu-Ce-O sorbent at 850[degree]C, using a feed gas containing 5000 ppm H[sub 2]S, 10 vol % H[sub 2] and 10 vol % H[sub 2]O at a space velocity (STP) of 2000 h[sup [minus]1], demonstrated high sulfur removal efficiency for the first one or two cycles, and a significant reduction in efficiency in the following cycles.

Authors:
;  [1]; ; ;  [2];  [3]
  1. Institute of Gas Technology, Chicago, IL (United States)
  2. Massachusetts Inst. of Tech., Cambridge, MA (United States)
  3. Illinois Clean Coal Inst., Carterville, IL (United States)
Publication Date:
Research Org.:
Illinois Dept. of Energy and Natural Resources, Springfield, IL (United States)
Sponsoring Org.:
USDOE; USDOE, Washington, DC (United States)
OSTI Identifier:
6865973
Report Number(s):
DOE/PC/92521-T10
ON: DE93013629
DOE Contract Number:  
FC22-92PC92521
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; FUEL GAS; HOT GAS CLEANUP; HYDROGEN SULFIDES; REMOVAL; CALCINATION; CERIUM OXIDES; CHEMICAL PREPARATION; CHROMIUM OXIDES; COPPER OXIDES; EFFICIENCY; PERFORMANCE TESTING; REGENERATION; STABILITY; SULFIDATION; SURFACE AREA; CERIUM COMPOUNDS; CHALCOGENIDES; CHEMICAL REACTIONS; CHROMIUM COMPOUNDS; COPPER COMPOUNDS; DECOMPOSITION; FLUIDS; FUELS; GAS FUELS; GASES; HYDROGEN COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; PURIFICATION; PYROLYSIS; RARE EARTH COMPOUNDS; SULFIDES; SULFUR COMPOUNDS; SURFACE PROPERTIES; SYNTHESIS; TESTING; THERMOCHEMICAL PROCESSES; TRANSITION ELEMENT COMPOUNDS; 010402* - Coal, Lignite, & Peat- Purification & Upgrading; 010404 - Coal, Lignite, & Peat- Gasification

Citation Formats

Hill, A H, Abbasian, J, Flytzani-Stephanopoulos, M, Bo, L, Li, Li, and Honea, F I. Development of novel copper-based sorbents for hot gas cleanup. United States: N. p., 1993. Web. doi:10.2172/6865973.
Hill, A H, Abbasian, J, Flytzani-Stephanopoulos, M, Bo, L, Li, Li, & Honea, F I. Development of novel copper-based sorbents for hot gas cleanup. United States. https://doi.org/10.2172/6865973
Hill, A H, Abbasian, J, Flytzani-Stephanopoulos, M, Bo, L, Li, Li, and Honea, F I. 1993. "Development of novel copper-based sorbents for hot gas cleanup". United States. https://doi.org/10.2172/6865973. https://www.osti.gov/servlets/purl/6865973.
@article{osti_6865973,
title = {Development of novel copper-based sorbents for hot gas cleanup},
author = {Hill, A H and Abbasian, J and Flytzani-Stephanopoulos, M and Bo, L and Li, Li and Honea, F I},
abstractNote = {The objective of this investigation is to evaluate two novel copper-based sorbents (i.e. copper-chromium and copper-cerium) for their effectiveness in removing hydrogen sulfide from fuel gas in the temperature range of 650[degree] to 850[degree]C. New sorbent compositions from the selected Cu-Cr-O and Cu-Ce-O binary oxides were prepared and characterized by BET N[sub 2]-desorption surface area measurement following various calcination/time-temperature exposures. The general trends reported last quarter (on 11 different compositions) were validated this quarter in that both binary oxides lose surface area as the amount of CuO is increased. Time-resolved sulfidation tests were conducted at 850[degree]C using the equimolar CuO.Cr[sub 2]O[sub 3] composition. The two selected binary oxides prepared in larger qauntities (for testing in a two-inch reactor) have physical properties typical of the sorbents prepared in past programs. Two multicycle desulfurization tests, conducted this quarter on the Cu-Ce-O sorbent at 850[degree]C, using a feed gas containing 5000 ppm H[sub 2]S, 10 vol % H[sub 2] and 10 vol % H[sub 2]O at a space velocity (STP) of 2000 h[sup [minus]1], demonstrated high sulfur removal efficiency for the first one or two cycles, and a significant reduction in efficiency in the following cycles.},
doi = {10.2172/6865973},
url = {https://www.osti.gov/biblio/6865973}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Jan 01 00:00:00 EST 1993},
month = {Fri Jan 01 00:00:00 EST 1993}
}