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Grantee Research Project Results

An Improved NOXSO Sorbent for the Removal of NOx and SOx from Flue Gas

EPA Contract Number: 68D70050
Title: An Improved NOXSO Sorbent for the Removal of NOx and SOx from Flue Gas
Investigators: Copeland, Robert
Small Business: TDA Research Inc.
EPA Contact: Richards, April
Phase: II
Project Period: September 1, 1997 through September 1, 1999
Project Amount: $225,000
RFA: Small Business Innovation Research (SBIR) - Phase II (1997) Recipients Lists
Research Category: SBIR - Air Pollution , Small Business Innovation Research (SBIR) , Air Quality and Air Toxics

Description:

Coal-fired power plants are efficient but have high emissions of NOx and SOx. The NOXSO process, the most promising of the regenerable sorbent processes under development, uses a regenerable NaAlO2 sorbent to simultaneously remove both NOx and SOx. The process is being commercialized under the DOE Clean Coal Technology (CCT) Program and has excellent economics. During the Phase I project, a sorbent was developed with a unique structure that has the potential to absorb more sulfur than the current sorbent, which is made from very low-cost materials, and has excellent chemical stability and attrition resistance. This sorbent has the potential to further improve the process by reducing the parasitic power consumption, reducing the capital cost of the process equipment, and potentially reducing the cost of the initial sorbent load and the subsequent sorbent makeup costs. The Phase II project involves further improvement in the absorption capacity of the sorbent, scale up of the production methods, screening of the most promising sorbents in fixed bed tests, and conduct of fluidized bed tests on a large batch of the sorbent. The cost projections will be updated, and an economic assessment will be conducted. In Phase III, the sorbent will be tested in a real coal flue gas.

Supplemental Keywords:

small business, SBIR, air emissions, engineering, chemistry., RFA, Air, Scientific Discipline, Waste, Toxics, HAPS, Environmental Chemistry, Engineering, Chemistry, & Physics, Incineration/Combustion, Atmospheric Sciences, air toxics, Environmental Engineering, hazardous air pollutants, combustion contaminants, incineration, NOxSO process , sulfer oxide, coal fired power plants, emissions, Nitrogen Oxides, emission controls, atmospheric chemistry, Sulfur Oxides (SO2), sorbents, combustion byproducts, clean combustion, industrial technology, combustion, coal combustion, emission control technologies, ambient emissions, industrial air pollution, combustion technology, air pollutants, sulfur oxides, regeneration, power generation , emissions contol engineering, air pollution, ambient air quality

Progress and Final Reports:

  • Final

  • SBIR Phase I:

    An Improved NOXSO Sorbent for the Removal of NOx and SOx from Flue Gas

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    The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoints of the principal investigator and may not represent the views and policies of ORD and EPA. Conclusions drawn by the principal investigators have not been reviewed by the Agency.

    Project Research Results

    • Final
    • SBIR Phase I

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    Last updated April 28, 2023
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