US 10,343,114 B2
Sorbents for the oxidation and removal of mercuryGeneral
US 10,343,114 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:
05/14/18
Granted:
07/09/19
Expiration:
08/30/24
Abstract
A promoted carbon and/or non-carbon base sorbent are described that are highly effective for the removal of mercury from flue gas streams. The promoted sorbent comprises a carbon and/or non-carbon base sorbent that has reacted with and contains forms of halogen and halides. Optional components may be added to increase and/or preserve reactivity and mercury capacity. These may be added directly with the base sorbent, or in-flight within a gas stream (air, flue gas, etc.), to enhance base sorbent performance and/or mercury capture. Mercury removal efficiencies obtained exceed conventional methods. The promoted sorbent can be regenerated and reused. Base sorbent treatment and preparation methods are also described. New methods for in-flight preparation, introduction, and control of the active base sorbent into the mercury contaminated gas stream are described.
Cooperative Patent Classification (CPC)
B01B01J20/28004B01D2258/0283B01J