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Title: 3D Printed Filter for Particulate Air Filtration

Authors:
 [1]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1366926
Report Number(s):
LLNL-TR-732860
DOE Contract Number:
AC52-07NA27344
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
99 GENERAL AND MISCELLANEOUS; 61 RADIATION PROTECTION AND DOCIMETRY

Citation Formats

Lee, J. 3D Printed Filter for Particulate Air Filtration. United States: N. p., 2017. Web. doi:10.2172/1366926.
Lee, J. 3D Printed Filter for Particulate Air Filtration. United States. doi:10.2172/1366926.
Lee, J. Wed . "3D Printed Filter for Particulate Air Filtration". United States. doi:10.2172/1366926. https://www.osti.gov/servlets/purl/1366926.
@article{osti_1366926,
title = {3D Printed Filter for Particulate Air Filtration},
author = {Lee, J.},
abstractNote = {},
doi = {10.2172/1366926},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed May 31 00:00:00 EDT 2017},
month = {Wed May 31 00:00:00 EDT 2017}
}

Technical Report:

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  • The objective of this program is to develop advanced concepts for the removal of NO{sub x} from flue gas emitted by coal-fired utility boilers, or for the control of NO{sub x} formation by advanced combustion modification techniques. Funded projects are required to focus on the development of technology that significantly advances the state of the art using a process or a combination of processes capable of reducing NO{sub x} emissions to 60 ppm or less. The concept must have successfully undergone sufficient laboratory-scale development to justify scaleup for further evaluation at the pilot scale (not to exceed 5 MWe inmore » size). The EERC approach to meeting the program objective involves the development of a catalytic fabric filter for simultaneous NO{sub x} and particulate control. The idea of applying either permanent or throwaway catalysts to a high-temperature fabric filter for NO{sub x} control is not new. However, advances at OCF have shown that a high-activity catalyst can be applied to a high-temperature woven glass cloth resulting in a fabric filter material that can operate at temperatures higher than the maximum operating temperatures of commercially available, coated glass fabric. The NO{sub x} is removed by catalytic reduction with ammonia to form nitrogen and water. The catalyst employed at this time is vanadium/titanium, but the exact catalyst composition and the unique method of applying the catalyst to high-temperature glass fabric are the property of OCF. Other catalyst options are being evaluated by OCF in order to improve catalyst performance and minimize catalyst cost.« less
  • No abstract prepared.
  • In Phase IIA of this project, CeraMem has further developed and scaled up ceramic HEPA filters that are appropriate for use on filtration of vent gas from HLW tanks at DOE sites around the country. This work included procuring recrystallized SiC monoliths, developing membrane and cement materials, and defining a manufacturing process for the production of prototype full sizes HEPA filters. CeraMem has demonstrated that prototype full size filters can be manufactured by producing 9 full size filters that passed DOP aerosol testing at the Oak Ridge Filter Test Facility. One of these filters was supplied to the Savannah Rivermore » Technical Center (SRTC) for process tests using simulated HLW tank waste. SRTC has reported that the filter was regenerable (with some increase in pressure drop) and that the filter retained its HEPA retention capability. CeraMem has also developed a Regenerable HEPA Filter System (RHFS) design and acceptance test plan that was reviewed by DOE personnel. The design and acceptance test plan form the basis of the system proposal for follow-on work in Phase IIB of this project.« less
  • SRP nuclear facilities include air filtration as a safety feature to reduce radioactive material releases to the atmosphere. When assessing the risk of operating these nuclear facilities it is necessary to define their unavailability, and efficiency. This memorandum includes data used to statistically analyze filter systems, and includes recommendations for use in risk assessments.