FPI CEMS-2000B Hg Flue Gas Mercury Continuous Emission Monitoring System
| Brand | FPI |
|---|---|
| Origin | Zhejiang, China |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Country of Origin | China |
| Model | CEMS-2000B Hg |
| Pricing | Upon Request |
Overview
The FPI CEMS-2000B Hg Flue Gas Mercury Continuous Emission Monitoring System is a certified, field-deployed analytical platform engineered for regulatory-grade quantification of elemental mercury (Hg⁰), oxidized mercury (Hg²⁺), and total gaseous mercury (HgT) in industrial flue gas streams. It operates on the principle of cold vapor atomic fluorescence spectroscopy (CVAFS), a trace-level detection method recognized under EPA Method 29 and ASTM D6784–22 for mercury speciation in stack emissions. Unlike gold amalgamation-based systems requiring thermal desorption and pre-concentration, the CEMS-2000B Hg employs direct CVAFS detection with integrated high-temperature catalytic conversion—enabling true real-time, sub-ng/m³ sensitivity without consumable traps or mercury-coated substrates. The system is designed for permanent installation at stationary emission sources subject to national and provincial mercury emission limits, including coal-fired power plants, municipal solid waste incinerators, hazardous waste treatment facilities, and non-ferrous metallurgical smelters.
Key Features
- Triple-species mercury quantification: Simultaneous measurement of Hg⁰, Hg²⁺, and HgT via sequential catalytic oxidation and CVAFS detection
- Patented inertial filtration dilution probe: Minimizes particulate-induced plugging in high-dust flue gas; adjustable dilution ratio (10:1 to 50:1) ensures optimal signal-to-noise across varying moisture and temperature conditions
- High-temperature catalytic裂解 module (≥750 °C): Converts all Hg²⁺ species—including HgCl₂, HgO, and HgBr₂—to elemental Hg⁰ prior to detection, eliminating reliance on costly chemical reagents or disposable catalyst cartridges
- Dual onboard calibration sources: Integrated Hg⁰ permeation tube and HgCl₂ diffusion source enable automated zero/span verification and multi-point calibration per ISO 14956 and EN 14181 requirements
- Modular architecture: Independent sampling, conditioning, conversion, and detection units support field maintenance, component replacement, and future functional expansion
- Embedded diagnostics engine: Real-time fault logging, automatic recovery from communication loss or power interruption, and predictive alerting for filter saturation or catalyst deactivation
Sample Compatibility & Compliance
The CEMS-2000B Hg is validated for use with flue gases containing up to 20 % O₂, 15 % CO₂, 10 % H₂O (v/v), and particulate loadings ≤50 mg/Nm³. It meets Chinese HJ 917–2017 technical specifications for mercury CEMS and is compatible with data acquisition and handling systems (DAHS) conforming to HJ 75–2017 and HJ 76–2017. Its communication protocols (Modbus TCP, OPC UA, and optional 4–20 mA analog outputs) ensure seamless integration with plant DCS networks and provincial environmental monitoring platforms. All firmware and data logs comply with GLP-aligned audit trail requirements, supporting traceability of calibration events, maintenance records, and raw spectral data.
Software & Data Management
The embedded FPI MercuryView™ software provides a browser-accessible interface for configuration, diagnostics, and reporting. It supports automated generation of hourly/daily/monthly compliance reports aligned with China’s “Pollutant Discharge Permit Regulation” and local ecological environment bureaus’ data submission templates. Raw spectral data, calibration logs, and system health metrics are stored locally (≥180 days) and exportable in CSV/ASCII format. Optional cloud synchronization enables remote access for third-party verification and cross-site fleet monitoring. Audit trails record user actions, timestamped parameter changes, and calibration history—fully compliant with data integrity principles referenced in FDA 21 CFR Part 11 for regulated environments.
Applications
- Coal-fired power generation units subject to GB 13223–2011 and provincial mercury emission caps
- Municipal solid waste (MSW) and hazardous waste incinerators operating under GB 18485–2014
- Secondary non-ferrous metal smelting facilities (e.g., zinc, lead, copper) where mercury is a co-emitted contaminant
- Cement kilns equipped with alternative fuel firing systems and subject to mercury monitoring mandates
- Refuse-derived fuel (RDF) and biomass co-firing installations requiring continuous speciated mercury tracking
FAQ
Does the system require gold-coated traps or mercury amalgamation cartridges?
No. The CEMS-2000B Hg uses direct cold vapor atomic fluorescence detection without pre-concentration steps, eliminating dependence on consumable gold traps or amalgamation media.
Can it distinguish between Hg⁰ and Hg²⁺ in real time?
Yes. By selectively bypassing or engaging the high-temperature catalytic converter, the system measures Hg⁰ directly and calculates Hg²⁺ as the difference between HgT and Hg⁰, in accordance with EPA PS-12A methodology.
What is the minimum detectable concentration (MDC) for HgT?
The system achieves an MDC of ≤0.05 µg/m³ (at standard conditions: 101.325 kPa, 0 °C, dry basis), verified per HJ 917–2017 validation protocol.
Is remote firmware update supported?
Yes—via secure HTTPS-based OTA (over-the-air) update mechanism with digital signature verification and rollback capability.
How often must the catalytic converter be replaced?
Under typical flue gas conditions (≤150 °C, <5 ppm SO₂), the ceramic-supported catalyst exhibits service life exceeding 24 months; replacement is condition-based and tracked by internal thermal degradation diagnostics.
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