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Title: Methods and sorbents for utilizing a hot-side electrostatic precipitator for removal of mercury from combustion gases

Abstract

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.

Inventors:
 [1]
  1. Hudson, OH
Issue Date:
Research Org.:
Albemarle Corporation (Baton Rouge, LA)
Sponsoring Org.:
USDOE
OSTI Identifier:
1015306
Patent Number(s):
7887618
Application Number:
US Patent Application 12/424,186
Assignee:
Albemarle Corporation (Baton Rouge, LA)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
F - MECHANICAL ENGINEERING F23 - COMBUSTION APPARATUS F23J - REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES
DOE Contract Number:  
FC26-03NT41990
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Nelson, Sidney. Methods and sorbents for utilizing a hot-side electrostatic precipitator for removal of mercury from combustion gases. United States: N. p., 2011. Web.
Nelson, Sidney. Methods and sorbents for utilizing a hot-side electrostatic precipitator for removal of mercury from combustion gases. United States.
Nelson, Sidney. Tue . "Methods and sorbents for utilizing a hot-side electrostatic precipitator for removal of mercury from combustion gases". United States. https://www.osti.gov/servlets/purl/1015306.
@article{osti_1015306,
title = {Methods and sorbents for utilizing a hot-side electrostatic precipitator for removal of mercury from combustion gases},
author = {Nelson, Sidney},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2011},
month = {2}
}

Patent:

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