In the complex and high-risk field of petrochemicals, precise monitoring of gas composition plays a decisive role in production safety and product quality. The German AMS gas analyzer occupies an important position in this field with its explosion-proof design and precise measurement capabilities.
1、 Explosion proof design, suitable for high-risk environments
Petrochemical production often involves flammable and explosive gases, so the explosion-proof performance of instruments is crucial. AMS gas analyzer adopts various explosion-proof technologies to meet strict requirements. For example, some models have passed ATEX II 2G Ex pxb IIB+H2 T4 Gb X (Ex Zone 1) and ATEX II 3G IIB+H2 T3 Gc (Ex Zone 2) explosion-proof certifications. It follows strict explosion-proof standards from electrical components to shell construction. The electrical part adopts an intrinsic safety circuit design, limiting the energy of the circuit, and even if a fault occurs, it will not produce sparks or high temperatures sufficient to ignite flammable and explosive gases. At the same time, the shell is made of high-strength, impact resistant, and well sealed materials, which can effectively prevent sparks and high temperatures that may be generated inside from spreading to the external hazardous environment. If there are a large amount of flammable and explosive gases such as hydrogen in the hydrogenation unit area of the refinery, AMS explosion-proof gas analyzer can operate safely and stably, continuously monitor gas concentration, and provide protection for production.
2、 Accurate measurement: multi-dimensional guarantee of reliable data
（1） Advanced Measurement Principles and Sensor Technology
AMS gas analyzer utilizes various advanced measurement principles. Electrochemical sensors, based on electrochemical reactions, have high sensitivity and selectivity for specific gases, and can accurately detect gas concentration changes as low as ppm or even ppb levels. When measuring toxic and harmful gases, such as hydrogen sulfide, electrochemical sensors can be used to quickly and accurately determine its content in process gases, providing key data for personnel safety and equipment protection in the production process. Thermal conductivity sensors analyze gas composition by detecting differences in gas thermal conductivity, and perform well in monitoring binary or multicomponent gas mixtures. For example, when analyzing the proportion of main components in petrochemical raw gas, they can provide accurate results and assist in optimizing production process control.
（2） High precision data processing and calibration system
The analyzer is equipped with a high-performance microprocessor to quickly and accurately process the data collected by the sensors. It can not only compensate for the impact of environmental temperature and pressure changes on measurement results in real time, but also has intelligent self diagnosis function, which can timely detect and eliminate sensor faults or measurement abnormalities. Meanwhile, AMS is equipped with a comprehensive calibration system that ensures long-term stability and reliability of measurement data through regular calibration. Taking the measurement of oxygen concentration as an example, the accuracy after calibration can reach ± 0.1% FS. In petrochemical production, the control of oxygen content in the reaction process plays a key role in avoiding reaction runaway or product quality problems caused by oxygen concentration deviation.
3、 Wide range of industry application scenarios
（1） Production process monitoring
AMS gas analyzers are ubiquitous throughout the entire process of petrochemical production. Before the raw gas enters the reaction device, real-time monitoring of gas composition and impurity content is carried out to ensure stable quality of the reaction raw materials. During the reaction process, the concentration of key gases is continuously monitored, such as in the cracking furnace stage of ethylene production, monitoring changes in various components of the cracking gas to provide a basis for operators to adjust process parameters, optimize reaction conditions, and improve product yield. In the refining stage of the product, the concentration of residual impurity gases in the product is detected to ensure that the product quality meets the standards.
（2） Security protection monitoring
AMS gas analyzer serves as the "front line" for safety protection against potential safety hazards such as leaks in petrochemical production. Set up monitoring points in areas prone to leakage such as storage tank areas and pipeline connections. Once the concentration of flammable, explosive, or toxic gases exceeds the preset threshold, an alarm will be immediately issued to remind staff to take timely measures to prevent accidents from occurring. During the start-up and shutdown process of chemical plants, comprehensive monitoring of environmental gases is carried out to ensure the safety of the operating environment and avoid explosions or poisoning incidents caused by gas accumulation.
The German AMS gas analyzer, with its explosion-proof design, precise measurement, and effective application in multiple scenarios in the petrochemical industry, has become a powerful tool to ensure industry safety production, improve production efficiency and product quality. With continuous technological progress, it will continue to contribute to the development of the petrochemical industry.