US 10,596,517 B2
Sorbents for the oxidation and removal of mercuryGeneral
US 10,596,517 B2
Sorbents for the oxidation and removal of mercury
Tech Center:
1700 Chemical and Materials Engineering
Examiner:
Amber R Orlando
Art Unit:
1776 Chemical Apparatus, Separation and Purification, Liquid and Gas Contact Apparatus
Inventors:
Edwin S. Olson; Michael J. Holmes; John H. Pavlish
Assignee:
Priority:
08/30/04
Filed:
06/04/18
Granted:
03/24/20
Expiration:
08/30/24
Abstract
A promoted activated carbon sorbent is described that is highly effective for the removal of mercury from flue gas streams. The sorbent comprises a new modified carbon form containing reactive forms of halogen and halides. Optional components may be added to increase reactivity and mercury capacity. These may be added directly with the sorbent, or to the flue gas to enhance sorbent performance and/or mercury capture. Mercury removal efficiencies obtained exceed conventional methods. The sorbent can be regenerated and reused. Sorbent treatment and preparation methods are also described. New methods for in-flight preparation, introduction, and control of the active sorbent into the mercury contaminated gas stream are described.
Cooperative Patent Classification (CPC)
B01B01J20/28004B01D2258/0283B01JY10S95/901Y10S