SO3 resistant sorbents for removing mercury from flue gas

Title: SO3 resistant sorbents for removing mercury from flue gas

Full Record
Other Related Research

Abstract

Surface functionalized sorbent particles for vapor-phase mercury removal, especially in the presence of SO3 in, for example, flue gas. The sorbent surface is modified to increase the SO3 resistance of vapor-phase mercury sorbents. The mercury removal efficiency is immune to the presence of SO3, which is not the case with conventional activated carbon as well as brominated activated carbons. The sorbent is based on carbon particles with a metal oxide coating on the surface. The thin metal oxide layer acts as an amenable surface to introduce functional groups. The metal oxide coated carbon was further modified with amine molecules, to increase its resistance towards SO3 poisoning.

Inventors:: Jain, Mohit; Skandan, Ganesh

Issue Date:: 2013-07-09

Research Org.:: NEI Corp., Somerset, NJ (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1531857

Patent Number(s):: 8481455

Application Number:: 13/033,482

Assignee:: NEI Corporation (Somerset, NJ)

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

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

Show more

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
B01J20/3204 - {Inorganic carriers, supports or substrates}

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T428/2991 - Coated

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
B01D2258/0283 - Flue gases
B01D53/64 - Heavy metals or compounds thereof, e.g. mercury
B01D2253/1124 - Metal oxides

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
B01J20/041 - {Oxides or hydroxides}

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
B01D2253/25 - Coated, impregnated or composite adsorbents

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
B01J20/06 - comprising oxides or hydroxides of metals not provided for in group B01J20/04

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
B01D2253/102 - Carbon

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
B01J20/3236 - {containing metal, other than zeolites, e.g. oxides, hydroxides, sulphides or salts}
B01J20/3289 - {Coatings involving more than one layer of same or different nature}
B01J20/08 - comprising aluminium oxide or hydroxide
B01J20/20 - comprising free carbon
B01J20/3257 - {the functional group or the linking, spacer or anchoring group as a whole comprising at least one of the heteroatoms nitrogen, oxygen or sulfur together with at least one silicon atom, these atoms not being part of the carrier as such}

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
B01D2257/602 - Mercury or mercury compounds

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
B01J20/3248 - {the functional group or the linking, spacer or anchoring group as a whole comprising at least one type of heteroatom selected from a nitrogen, oxygen or sulfur, these atoms not being part of the carrier as such}

Show less

DOE Contract Number:: FG02-07ER84714

Resource Type:: Patent

Resource Relation:: Patent File Date: 2011-02-23

Country of Publication:: United States

Language:: English

Citation Formats


                    Jain, Mohit, and Skandan, Ganesh. SO3 resistant sorbents for removing mercury from flue gas.  United States: N. p., 2013. 
        Web.

Copy to clipboard


                    Jain, Mohit, & Skandan, Ganesh. SO3 resistant sorbents for removing mercury from flue gas.  United States.

Copy to clipboard


                    Jain, Mohit, and Skandan, Ganesh. Tue .  
        "SO3 resistant sorbents for removing mercury from flue gas".  United States.  https://www.osti.gov/servlets/purl/1531857.

Copy to clipboard


                    
@article{osti_1531857,

  title        = {SO3 resistant sorbents for removing mercury from flue gas},

  author       = {Jain, Mohit and Skandan, Ganesh},

  abstractNote = {Surface functionalized sorbent particles for vapor-phase mercury removal, especially in the presence of SO3 in, for example, flue gas. The sorbent surface is modified to increase the SO3 resistance of vapor-phase mercury sorbents. The mercury removal efficiency is immune to the presence of SO3, which is not the case with conventional activated carbon as well as brominated activated carbons. The sorbent is based on carbon particles with a metal oxide coating on the surface. The thin metal oxide layer acts as an amenable surface to introduce functional groups. The metal oxide coated carbon was further modified with amine molecules, to increase its resistance towards SO3 poisoning.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2013},

  month        = {7}

}

Copy to clipboard

Patent:

View Patent

Save / Share:

Export Metadata

Save to My Library

Similar Records in DOE Patents and OSTI.GOV collections:

Environmentally benign sorbents for removing mercury from flue gas

Patent Skandan, Ganesh; Jain, Mohit

A new class of carbon-based sorbents for vapor-phase mercury removal is disclosed in this invention. The optimum structure of the sorbent particles, and a method to produce the sorbent, are described. The sorbent is based on carbon particles with a metal-oxide coating on the surface. The thin metal-oxide layer acts as a barrier for the adsorption of Air Entrainment Admixture (AEA), the component used to stabilize bubbles in cement), thereby enhancing its concrete friendliness. The metal-oxide is coated on the surface of carbon, using a solution-based method. The metal-oxide coated carbon was further modified with sulfur molecules, to increase itsmore » mercury removal capacity.« less
Full Text Available
Methods and sorbents for utilizing a hot-side electrostatic precipitator for removal of mercury from combustion gases

Patent Nelson, Sidney [Hudson, OH]

Methods are provided for reducing emission of mercury from a gas stream by treating the gas with carbonaceous mercury sorbent particles to reduce the mercury content of the gas; collecting the carbonaceous mercury sorbent particles on collection plates of a hot-side ESP; periodically rapping the collection plates to release a substantial portion of the collected carbonaceous mercury sorbent particles into hoppers; and periodically emptying the hoppers, wherein such rapping and emptying are done at rates such that less than 70% of mercury adsorbed onto the mercury sorbent desorbs from the collected mercury sorbent into the gas stream.
Full Text Available
Use of sulfide-containing liquors for removing mercury from flue gases

Patent Nolan, Paul S [North Canton, OH]; Downs, William [Alliance, OH]; Bailey, Ralph T [Uniontown, OH]; ...

A method and apparatus for reducing and removing mercury in industrial gases, such as a flue gas, produced by the combustion of fossil fuels, such as coal, adds sulfide ions to the flue gas as it passes through a scrubber. Ideally, the source of these sulfide ions may include at least one of: sulfidic waste water, kraft caustic liquor, kraft carbonate liquor, potassium sulfide, sodium sulfide, and thioacetamide. The sulfide ion source is introduced into the scrubbing liquor as an aqueous sulfide species. The scrubber may be either a wet or dry scrubber for flue gas desulfurization systems.
Full Text Available
Use of sulfide-containing liquors for removing mercury from flue gases

Patent Nolan, Paul S.; Downs, William; Bailey, Ralph T.; ...

A method and apparatus for reducing and removing mercury in industrial gases, such as a flue gas, produced by the combustion of fossil fuels, such as coal, adds sulfide ions to the flue gas as it passes through a scrubber. Ideally, the source of these sulfide ions may include at least one of: sulfidic waste water, kraft caustic liquor, kraft carbonate liquor, potassium sulfide, sodium sulfide, and thioacetamide. The sulfide ion source is introduced into the scrubbing liquor as an aqueous sulfide species. The scrubber may be either a wet or dry scrubber for flue gas desulfurization systems.
Full Text Available
Process for the combined removal of SO.sub.2 and NO.sub.x from flue gas

Patent Chang, Shih-Ger [El Cerrito, CA]; Liu, David K [Oakland, CA]; Griffiths, Elizabeth A [Neston, GB2]; ...

The present invention in one aspect relates to a process for the simultaneous removal of NO.sub.x and SO.sub.2 from a fluid stream comprising mixtures thereof and in another aspect relates to the separation, use and/or regeneration of various chemicals contaminated or spent in the process and which includes the steps of: (A) contacting the fluid stream at a temperature of between about 105.degree. and 180.degree. C. with a liquid aqueous slurry or solution comprising an effective amount of an iron chelate of an amino acid moiety having at least one --SH group; (B) separating the fluid stream from the particulatesmore »« less
Full Text Available

Similar Records