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.:
Date of Patent:
Feb. 28, 2012
Filed:
Mar. 26, 2010
Lawrence E. Bool, Iii, East Aurora, NY (US);
Chien-chung Chao, Williamsville, NY (US);
Mark K. Weise, Orchard Park, NY (US);
Jurron L. D. Bradley, Buffalo, NY (US);
Lawrence E. Bool, III, East Aurora, NY (US);
Chien-Chung Chao, Williamsville, NY (US);
Mark K. Weise, Orchard Park, NY (US);
Jurron L. D. Bradley, Buffalo, NY (US);
Praxair Technology, Inc., Danbury, CT (US);
Abstract
A gas mixture preheated to high temperatures using an oxy-fuel, an oxygen-enriched air-fuel or an air-fuel burner is used to devolatilize and partially oxidize carbonaceous feedstock, thereby producing an active residual char that can be used in applications utilizing activated carbon. Use of hot gas and ground carbonaceous feedstock allows the equipment to be minimized, thereby allowing the activated carbon to be produced at or near points of use, for example the production of activated char at or near utility boilers for use in the reduction of mercury emissions from flue gas streams.