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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. 2017. "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 = 2017,
month = 5
}

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
  • Filter Sensing Technology’s radio frequency (RF) sensor for particulate filter on-board diagnostics (OBD) was studied on a lean gasoline engine at the National Transportation Research Center (NTRC) at Oak Ridge National Laboratory (ORNL). The response of the RF sensor to particulate matter (PM) or “soot” accumulation on the gasoline particulate filter (GPF) installed in the engine exhaust was evaluated. In addition, end plugs of the GPF were purposely removed, and subsequent changes to the RF sensor measured soot loading on the GPF were characterized. Results from the study showed that the RF sensor can accurately measure soot accumulation on amore » GPF; furthermore, the predicted decreased soot accumulation due to plug removal was detected by the RF sensor. Overall, the studies were short and preliminary in nature; however, clearly, the RF sensor demonstrated the capability of measuring GPF soot loading at a level suitable for use in lean gasoline engine emission control OBD and control.« less
  • Interest in fabric filtration for boiler particulate control has increased due to the conversion of oil- and gas- to coal-fired boilers and the promulgation of more stringent particulate emission regulations. The report describes the theory, applications, performance, and economics of fabric filtration.