Title:
NANOPOROUS METAL FOAM GAS FILTERS
Document Type and Number:
WIPO Patent Application WO/2018/187633
Kind Code:
A3
Abstract:
A filtration system and method for removing sub-micron particulates and contaminants from a fluid flow with the use of ultralow density metal and coated metal foams that have nanometer to micron scale pores that can trap fluid borne particulates. Filters can use metal foams and coated metal foams alone or in tandem. The size and density of the pores in the foam can be adjusted with synthesis conditions. Foams with pore size gradients can be provided where different sized particulates will be trapped at different regions of the foams. The metal and coated metal foams can also act as catalysts or substrates for absorption or adsorption for separation of target particulates and gases from an effluent or gas stream. The foams may be charged with a voltage to function as an ionization grid to transfer charge to charge neutral particulates to facilitate collection.
Inventors:
LIU KAI (US)
Application Number:
PCT/US2018/026343
Publication Date:
December 06, 2018
Filing Date:
April 05, 2018
Export Citation:
Assignee:
UNIV CALIFORNIA (US)
International Classes:
B01D39/20
Domestic Patent References:
| WO2016006943A1 | 2016-01-14 |
Foreign References:
| US20100050866A1 | 2010-03-04 | |||
| CN102179246A | 2011-09-14 | |||
| US7935163B2 | 2011-05-03 |
Other References:
TANG, YUE ET AL.: "Ultralow-density copper nanowire aerogel monoliths with tunable mechanical and electrical properties", JOURNAL OF MATERIALS CHEMISTRY A, vol. 1, no. 23, 2013, pages 6723 - 6726, XP055552920
Attorney, Agent or Firm:
O'BANION, John (US)
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