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:
Apr. 14, 2020
Filed:
Jul. 12, 2019
Aecom Technical Services, Inc., Austin, TX (US);
Sterling M Gray, Austin, TX (US);
James B Jarvis, Austin, TX (US);
AECOM Technical Services, Inc., Austin, TX (US);
Abstract
Finely atomized alkaline sorbent salt solutions are injected into a hot flue gas stream to remove SO. Flash evaporation of the droplets produces very fine dried sorbent particles, which react efficiently with SOin the flue gas. The liquid sorbent may be sodium carbonate, sodium hydroxide, sodium sulfite, potassium carbonate, potassium hydroxide or the like. In a coal-fired boiler, the liquid sorbent may be injected after the economizer section, where the flue gas temperature is below 850° F., and upstream of a particulate collection device. The dried sorbent particles react with SOand then are removed from the flue gas stream in the particulate collection device, producing a cleaned flue gas stream.