Elemental sulfur from regenerable FGD and IGCC processes

Nelson, S G; Oehlberg, R J; Cianciolo, B C

Title: Elemental sulfur from regenerable FGD and IGCC processes

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Abstract

Gas streams containing concentrated levels of SO{sub 2} are common in many regenerable flue-gas desulfurization (FGD) processes, in gas-treatment systems associated with coal gasification processes, and in hydrocarbon treatment processes. Generally, the most desirable sulfur by-product is elemental sulfur. In the past, a modified Claus process was usually the method employed to convert SO{sub 2} to elemental sulfur. The Claus process, however, involves multiple reactors in series, is relatively expensive, consumes significant energy, and does not go to completion, which means that a tail gas treatment plant and other facilities are required. For over five years, Sorbent Technologies corporation has been developing and scaling up a simpler, less-costly process for converting SO{sub 2}-rich gases directly to elemental sulfur. The process is based on a new SO{sub 2}-to-elemental sulfur catalyst. The simple technology operates at typical coal gasification temperatures and can use natural gas (reformed methane) or other typical process gases for SO{sub 2} reduction. This new direct-to-sulfur process was recently tested at the Federal Energy Technology Center's advanced Copper Oxide Process FGD pilot plant in Pittsburgh, A skid-mounted test unit was placed after the copper oxide regenerator, where it turned the high-concentration SO{sub 2} off-gas directly into elemental sulfur. Thismore »« less

Authors:: Nelson, S G; Oehlberg, R J; Cianciolo, B C

Publication Date:: Wed Jul 01 00:00:00 EDT 1998

Research Org.:: Sorbent Technologies Corp. (US)

OSTI Identifier:: 20012940

Resource Type:: Conference

Resource Relation:: Conference: 23rd International Technical Conference on Coal Utilization and Fuel Systems, Clearwater, FL (US), 03/09/1998--03/13/1998; Other Information: PBD: [1998]; Related Information: In: The proceedings of the 23rd international technical conference on coal utilization and fuel systems, by Sakkestad, B.A. [ed.], 1164 pages.

Country of Publication:: United States

Language:: English

Subject:: 01 COAL, LIGNITE, AND PEAT; 20 FOSSIL-FUELED POWER PLANTS; SULFUR; MATERIALS RECOVERY; FLUE GAS; DESULFURIZATION; COMBINED-CYCLE POWER PLANTS; COAL GASIFICATION; SULFUR DIOXIDE; REDUCTION; PERFORMANCE

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                    Nelson, S G, Oehlberg, R J, and Cianciolo, B C. Elemental sulfur from regenerable FGD and IGCC processes.  United States: N. p., 1998. 
        Web.

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                    Nelson, S G, Oehlberg, R J, & Cianciolo, B C. Elemental sulfur from regenerable FGD and IGCC processes.  United States.

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                    Nelson, S G, Oehlberg, R J, and Cianciolo, B C. 1998.  
        "Elemental sulfur from regenerable FGD and IGCC processes".  United States.

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@article{osti_20012940,

  title        = {Elemental sulfur from regenerable FGD and IGCC processes},

  author       = {Nelson, S G and Oehlberg, R J and Cianciolo, B C},

  abstractNote = {Gas streams containing concentrated levels of SO{sub 2} are common in many regenerable flue-gas desulfurization (FGD) processes, in gas-treatment systems associated with coal gasification processes, and in hydrocarbon treatment processes. Generally, the most desirable sulfur by-product is elemental sulfur. In the past, a modified Claus process was usually the method employed to convert SO{sub 2} to elemental sulfur. The Claus process, however, involves multiple reactors in series, is relatively expensive, consumes significant energy, and does not go to completion, which means that a tail gas treatment plant and other facilities are required. For over five years, Sorbent Technologies corporation has been developing and scaling up a simpler, less-costly process for converting SO{sub 2}-rich gases directly to elemental sulfur. The process is based on a new SO{sub 2}-to-elemental sulfur catalyst. The simple technology operates at typical coal gasification temperatures and can use natural gas (reformed methane) or other typical process gases for SO{sub 2} reduction. This new direct-to-sulfur process was recently tested at the Federal Energy Technology Center's advanced Copper Oxide Process FGD pilot plant in Pittsburgh, A skid-mounted test unit was placed after the copper oxide regenerator, where it turned the high-concentration SO{sub 2} off-gas directly into elemental sulfur. This paper discusses the chemistry involved in the new technology, traces its development, and presents the results achieved in various pilot plant tests.},

  doi          = {},

  url          = {https://www.osti.gov/biblio/20012940},
  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Wed Jul 01 00:00:00 EDT 1998},

  month        = {Wed Jul 01 00:00:00 EDT 1998}

}

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Elemental sulfur from regenerable FGD and IGCC processes

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Gas streams containing concentrated levels of SO{sub 2} are common in many regenerable flue-gas desulfurization (FGD) processes, in gas-treatment systems associated with coal gasification processes, and in hydrocarbon treatment processes. Generally, the most desirable sulfur by-product is elemental sulfur. In the past, a modified Claus process was usually the method employed to convert SO{sub 2} to elemental sulfur. The Claus process, however, involves multiple reactors in series, is relatively expensive, consumes significant energy, and does not go to completion, which means that a tail gas treatment plant and other facilities are required. For over five years, Sorbent Technologies Corporation hasmore »« less
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