Features

• Adopting cold vapor atomic fluorescence method, with low detection lower limit and small temperature drift;
• 95% conversion efficiency for mercury valence converters;
• No optical moving parts, high reliability, on-site vibration has no effect on the measurement;
• Sampling probe internal blowback + external blowback combination technology, the probe is highly resistant;
• Real-time detection of the dilution ratio, restore the real Hg concentration, can truly respond to the concentration of working conditions.
• Real‑Time Accuracy: Continuous, in‑situ measurement ensures immediate detection of emission spikes, empowering operators to adjust combustion parameters and maintain compliance with stringent environmental regulations.
• Seamless Integration: Bi‑directional data transmission interfaces effortlessly with DCS and environmental protection agency platforms via digital mining instruments, streamlining reporting and audits.
• Robust Design: Housed in a modular, easy‑access analysis hut, the Mercury CEMS features automated O₂, temperature, pressure, flow, and humidity compensation to guarantee stable, drift‑free performance with minimal maintenance.
• Cost‑Effective Operation: Energy‑efficient heaters, self‑cleaning filters, and redundant calibration modules reduce downtime and running costs, delivering unmatched return on investment.

Our state‑of‑the‑art Mercury Continuous Emission Monitoring System (CEMS) LX-4000-Hg—engineered to deliver real‑time, 24/7 monitoring of gaseous mercury (Hg⁰ and Hg²⁺) in flue gas streams. Leveraging patented cold atomic fluorescence spectroscopy combined with high‑temperature extraction and precision dilution, our system accurately tracks mercury concentrations (mg/m³) and calculates emission rates (kg/h, t/d, t/a) from boilers, furnaces, incinerators, and other stationary sources.

Mercury CEMS System Components

Enhance your emissions monitoring suite with our fully modular Mercury CEMS, engineered for turnkey installation and maximum uptime. Each component is optimized for precision, durability, and seamless integration:

1. High‑Temperature Sampling Probe.
2. Flue Gas Mercury Analyzer.
3. Elemental Mercury (Hg⁰) Gas Generator.
4. Ionized Mercury (Hg²⁺) Gas Generator.
5. Temperature, Pressure & Flow Integrated Machine.

How Cold Vapor Atomic Fluorescence Powers Our Mercury CEMS?

Unlock ultra‑sensitive mercury detection with the heart of our Mercury CEMS—the Cold Vapor Atomic Fluorescence (CVAF) spectrometry module. This cutting‑edge technology delivers real‑time, sub‑parts‑per‑trillion resolution in flue gas mercury monitoring, ensuring regulatory compliance and process optimization.

1. 1. UV Excitation with Mercury‑Vapor Lamp

      • A high‑intensity UV lamp emits photons at the 253.7 nm resonance wavelength.

      • Flue gas enters the optically clear sample cell , allowing mercury atoms (Hg⁰ and Hg²⁺) to absorb UV energy.

   2. Fluorescence Emission & Photon Counting

      • Excited Hg atoms immediately re‑emit absorbed energy as fluorescence light in all directions.

      • A precision photon‑counting detector , positioned at a 90° angle, captures only the fluorescence signal—eliminating background noise and cross‑interference from SO₂, O₂, and other flue gas constituents.

   3. Automatic Baseline Correction & Drift Compensation

      • Integrated algorithms perform continuous zero‑span checks using built‑in elemental and ionized mercury gas generators.

      • Real‑time correction routines maintain measurement stability over extended operational cycles, reducing calibration frequency and maintenance costs.

   4. Dilution Extraction for Harsh Environments

      • The high‑temperature sampling probe dilutes particulate‑laden flue gas to protect optics and extend lamp life.

      • Controlled dilution also mitigates quenching effects, preserving the CVAF’s exceptional detection limits, even in high‑dust or high‑acid gas streams.

   5. Data Integration & Reporting

      • Measurement data (mg/m³, kg/h, t/a) are transmitted seamlessly to your DCS and environmental data systems.

      • Customizable alarms and trend reports let you respond proactively to emission excursions, optimize combustion settings, and document compliance.