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. 24, 2015
Filed:
Dec. 09, 2011
Xin Liu, Beijing, CN;
Jon E. Miller, Baton Rouge, LA (US);
Zhong Tang, Baton Rouge, LA (US);
Qunhui Zhou, Baton Rouge, LA (US);
Yinzhi Zhang, Baton Rouge, LA (US);
Kara M. Thalls, Reminderville, OH (US);
Xin Liu, Beijing, CN;
Jon E. Miller, Baton Rouge, LA (US);
Zhong Tang, Baton Rouge, LA (US);
Qunhui Zhou, Baton Rouge, LA (US);
Yinzhi Zhang, Baton Rouge, LA (US);
Kara M. Thalls, Reminderville, OH (US);
Albemarle Corporation, Baton Rouge, LA (US);
Abstract
This invention provides methods for reducing emissions of mercury from a cement plant comprising at least a kiln (), a particulate collection device (), collected particulates, an exhaust gas stream (), a heater, and a mercury scrubber, wherein the heater and mercury scrubber are upstream from the kiln. The methods comprise directing the collected particulates through the heater, to form volatilized mercury species from the collected particulates; directing the collected particulates from the heater downstream toward the kiln; and directing the volatilized mercury species to the mercury scrubber. The exhaust gas stream () exits the particulate collection device and is not directed into the heater. Optional steps include injecting a mercury sorbent at one or more points between the kiln and the particulate collection device.