The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 7887618 B1

PDF
Full Text
Expired
Date of Patent:
Feb. 15, 2011

Filed:

Apr. 15, 2009
Applicant:

Sidney Nelson, Hudson, OH (US);

Inventor:

Sidney Nelson, Hudson, OH (US);

Assignee:

Albemarle Corporation, Baton Rouge, LA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B03C 3/013 (2006.01);
U.S. Cl.
CPC ...
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.


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