Title: Methods of removing a constituent from a feed stream using adsorption media

Abstract

A method of producing an adsorption medium to remove at least one constituent from a feed stream. The method comprises dissolving and/or suspending at least one metal compound in a solvent to form a metal solution, dissolving polyacrylonitrile into the metal solution to form a PAN-metal solution, and depositing the PAN-metal solution into a quenching bath to produce the adsorption medium. The at least one constituent, such as arsenic, selenium, or antimony, is removed from the feed stream by passing the feed stream through the adsorption medium. An adsorption medium having an increased metal loading and increased capacity for arresting the at least one constituent to be removed is also disclosed. The adsorption medium includes a polyacrylonitrile matrix and at least one metal hydroxide incorporated into the polyacrylonitrile matrix.

Inventors:

Tranter, Troy J ^[1]; Mann, Nicholas R ^[2]; Todd, Terry A ^[3]; Herbst, Ronald S ^[1]

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+ Show Inventor Affiliations

1. Idaho Falls, ID
2. Rigby, ID
3. Aberdeen, ID

Issue Date:

2011-05-24

Research Org.:

Idaho National Laboratory (INL), Idaho Falls, ID (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1019537

Patent Number(s):

7947861

Application Number:

12/858,398

Assignee:

Battelle Energy Alliance, LLC (Idaho Falls, ID)

Patent Classifications (CPCs):

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY

B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES

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B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY

B01J20/0229 - {Compounds of Fe}
B01J20/06 - comprising oxides or hydroxides of metals not provided for in group B01J20/04
B01J20/26 - Synthetic macromolecular compounds
B01J20/261 - {obtained by reactions only involving carbon to carbon unsaturated bonds
B01J20/28007 - {with size in the range 1-100 nanometers, e.g. nanosized particles, nanofibers, nanotubes, nanowires or the like
B01J20/28026 - {Particles within, immobilised, dispersed, entrapped in or on a matrix, e.g. a resin}
B01J20/28061 - {being in the range 100-500 m2/g}
B01J20/3085 - {Chemical treatments not covered by groups B01J20/3007 - B01J20/3078}
B01J20/3204 - {Inorganic carriers, supports or substrates}
B01J20/3236 - {containing metal, other than zeolites, e.g. oxides, hydroxides, sulphides or salts}
B01J20/327 - {Polymers obtained by reactions involving only carbon to carbon unsaturated bonds}
B01J2220/46 - Materials comprising a mixture of inorganic and organic materials
B01J39/10 - Oxides or hydroxides
B01J41/10 - Inorganic material
B01J47/018 - Granulation

B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES

B82Y30/00 - Nanotechnology for materials or surface science, e.g. nanocomposites

C - CHEMISTRY C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE C02F - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

C02F1/281 - {using inorganic sorbents}
C02F1/283 - {using coal, charred products, or inorganic mixtures containing them}
C02F1/285 - {using synthetic organic sorbents}
C02F1/288 - {using composite sorbents, e.g. coated, impregnated, multi-layered}
C02F2101/103 - {Arsenic compounds}
C02F2101/106 - {Selenium compounds}
C02F2103/06 - Contaminated groundwater or leachate
C02F2201/006 - Cartridges
C02F2303/16 - Regeneration of sorbents, filters
C02F2305/08 - Nanoparticles or nanotubes

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DOE Contract Number:  

AC07-99ID13727

Resource Type:

Patent

Country of Publication:

United States

Language:

English

Subject:

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY