System for detecting activity of adsorbent

An activity detection and adsorbent technology, applied in the field of activity detection systems, can solve the problems of lack of important forms of mercury in coal-fired flue gas, inability to detect the content of total mercury and elemental mercury in an adsorption reactor at the same time, and achieve convenient and practical pipeline design. Effect
CN101980013BInactive Publication Date: 2013-07-24XIAMEN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
XIAMEN UNIV
Publication Date
2013-07-24
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a system for detecting the activity of an adsorbent and relates to the adsorbent. The system is provided with a stimulation fire coal flue gas phase mercury generation unit, a reaction unit, and a detection unit, wherein the stimulation fire coal flue gas phase mercury generation unit is provided with a N2 gas cylinder, a CO2 gas cylinder, a SO2 gas cylinder, an O2 gas cylinder, a NO2 gas cylinder, a HCl gas cylinder, a NO gas cylinder, a mass flow controller, an HgO permeability tube, an Hg<2+> permeability tube, and a constant temperature water bath kettle; the reaction unit is provided with a drying oven, a mixing preheater and an adsorption reactor; and the detection unit is provided with a gas-washing bottle with solution of SnCl2 and NaOH, a gas-washing bottle with solution of KCl and NaOH, an ice-bath condenser, and a mercury vapourmeter for continuously measuring the mercury-vapor content. The system can conveniently, quickly and stably generates a fullcomposition stimulation fire coal flue gas at certain gaseous mercury concentration, and can provide stable reaction temperature and monitor the total mercury or elemental mercury content in real time by matching with the mercury vapourmeter through a rotation valve.
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Description

technical field

[0001] The invention relates to an adsorbent, in particular to an activity detection system of the adsorbent used for researching the adsorption of the adsorbent to gas-phase mercury in coal-fired flue gas. Background technique

[0002] On March 15, 2005, the EPA enacted the Clean Air Mercury Act. The bill stipulates that by 2018, the level of mercury emissions should be reduced by 70% based on 1999 levels.

[0003] Sorbent injection technology is the most promising mercury removal technology for coal-fired power plant flue gas. This technology sprays the adsorbent into the flue gas flow between the air preheater and the dust removal equipment (electrostatic precipitator, bag filter, etc.), so that the adsorbent can complete the adsorption of mercury in the flue gas, and together with the fly ash Captured by subsequent dust removal equipment. Sorbent injection mercury removal technology has been successfully applied in several engineering cases, however, m...

Claims

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