In the chemical industry, chlorine (Cl₂) is one of the highly corrosive substances, especially when moisture is present. Even trace amounts of moisture in chlorine can react to form hydrochloric acid (HCl), causing severe damage to systems, pipelines, and components that come into direct contact with the gas. The consequences of this phenomenon not only reduce the lifespan of the equipment but also pose safety risks during operation, cause production interruptions, and incur high repair and maintenance costs.

The Need for Moisture Monitoring in Chlorine

During production, chlorine is dried using sulfuric acid (H₂SO₄) to remove moisture. However, to ensure gas purity before the compression and liquefaction stages, continuous monitoring of residual moisture content is mandatory.

In addition, under vacuum operating conditions, the chlorine gas pipeline system is susceptible to moisture ingress from the external environment. If not controlled in a timely manner, the moisture can lead to the formation of corrosive acids, resulting in severe system damage.

Proposed Solution – The DET H₂O Moisture Analyzer

Reecotech provides a moisture monitoring solution for chlorine gas with the DET H₂O analyzer—a specialized system for measuring trace amounts of moisture in chlorine and other highly corrosive gases. The DET H₂O operates based on the Faraday electrolytic principle, delivering highly sensitive and exceptionally accurate moisture measurements, ensuring reliability and stability even in harsh environments.

Key Features and Technical Specifications

• Gas Sample Contact Materials: Utilizes premium corrosion-resistant materials such as Monel 400, PTFE, glass, and platinum to ensure long-term durability in highly corrosive chlorine gas environments.
• Protective Housing: Constructed from polyester that meets IP65 (NEMA 4X) standards, providing resistance to corrosion, dust, and water—ideal for harsh operating conditions.
• Temperature Stabilization System: Maintains a stable operating temperature of 40°C ± 1°C to optimize measurement accuracy and reliability.
• Operating Principle: Employs Faraday electrolytic analysis without the need for periodic calibration, and integrates self-check functions for sensor sensitivity and performance to maintain stable measurement quality.
• Gas Conditioning: Equipped with a system for controlling pressure, flow, and inert gas purging, which optimizes both the accuracy and reliability of the measurement results.

Technical Specifications

User Interface

• A directly programmable keyboard for configuring the measurement range, alarm thresholds, and operating parameters.
• A real-time data display screen for easy monitoring and analysis.

Benefits of Implementing the DET H₂O Moisture Analyzer in Chlorine Gas Monitoring Systems

1. System Protection Against Corrosion: Provides timely monitoring and alarms upon detection of excess moisture, minimizing the formation of harmful hydrochloric acid that can damage equipment.
2. High Accuracy and Stability: The Faraday electrolytic technology ensures precise trace moisture measurements with long-term reliability without the need for periodic calibration.
3. Safe Operation: The use of specialized corrosion-resistant materials and a dedicated design ensures robust performance in highly corrosive and toxic gas environments.
4. Ease of Integration: Supports standard communication protocols, making it easy to integrate with SCADA, DCS, or other automated control systems.
5. Reduced Maintenance Costs: Minimizes corrosion-related damage, thereby extending the lifespan of the entire system and reducing operational and maintenance costs.

Equipping chlorine gas systems with the DET H₂O moisture analyzer not only facilitates precise trace moisture control but also plays a crucial role in asset protection, enhancing operational safety, and optimizing maintenance costs for chemical industry enterprises.