Invention Grant
- Patent Title: Reduction of mercury emissions from cement plants
- Patent Title (中): 减少水泥厂的汞排放
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Application No.: US13885052Application Date: 2011-12-09
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Publication No.: US08961654B2Publication Date: 2015-02-24
- Inventor: Xin Liu , Jon E. Miller , Zhong Tang , Qunhui Zhou , Yinzhi Zhang , Kara M. Thalls
- Applicant: Xin Liu , Jon E. Miller , Zhong Tang , Qunhui Zhou , Yinzhi Zhang , Kara M. Thalls
- Applicant Address: US LA Baton Rouge
- Assignee: Albemarle Corporation
- Current Assignee: Albemarle Corporation
- Current Assignee Address: US LA Baton Rouge
- Agent Marcy M. Hoefling
- International Application: PCT/US2011/064093 WO 20111209
- International Announcement: WO2012/082539 WO 20120621
- Main IPC: B01D53/02
- IPC: B01D53/02 ; B01D53/10 ; C04B7/36

Abstract:
This invention provides methods for reducing emissions of mercury from a cement plant comprising at least a kiln (6), a particulate collection device (10), collected particulates, an exhaust gas stream (8b), 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 (8c) 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.
Public/Granted literature
- US20130220120A1 Reduction of Mercury Emissions From Cement Plants Public/Granted day:2013-08-29
Information query
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