Non methane total hydrocarbon and benzene series analyzerThe scope of application is wide, covering multiple fields such as environmental monitoring, industrial emission control, occupational health and safety, and emergency response.
Non methane total hydrocarbon and benzene series analyzerDetailed explanation of its core applicable scenarios and specific application directions:
1、 Environmental monitoring field
Atmospheric environmental quality monitoring
Scenario: Urban air quality monitoring station, industrial park boundary monitoring.
Function: Real time monitoring of NMHC and benzene derivatives concentrations in the air, assessment of regional pollution levels, and providing data support for pollution source tracing.
Case: A chemical industrial park deployed an online monitoring system and discovered an abnormal increase in the concentration of benzene derivatives during a certain period of time, which was identified as a leakage in a storage tank of a certain enterprise.
Pollution source emission monitoring
Scenario: Fixed pollution sources (such as petrochemical, painting, and printing enterprises) exhaust gas discharge outlets.
Function: To detect whether NMHC and benzene derivatives in exhaust emissions meet the standards and comply with regulatory requirements such as the Comprehensive Emission Standards for Air Pollutants (GB 16297-1996).
Technical requirements: It must comply with standard methods such as HJ 38 and HJ 734, and support high-temperature sampling (such as 180 ℃ heat tracing pipeline) to avoid VOCs condensation loss.
2、 Industrial Process Control
Production process optimization
Scenario: Chemical production, painting workshop, pharmaceutical process.
Function: Monitor the concentration of VOCs emissions during the production process, optimize process parameters (such as temperature and pressure) to reduce pollutant generation.
Case: A certain automobile painting workshop reduced VOCs emissions by 30% by real-time monitoring of benzene concentration and adjusting the spraying process.
Equipment leakage detection
Scenario: Sealing points of equipment such as storage tanks, pipelines, valves, etc.
Function: Utilizing a portable analyzer to quickly locate the source of leaks, combined with LDAR (Leak Detection and Repair) technology to reduce unorganized emissions.
Technical advantages: Portable instruments have a short response time (≤ 3 minutes) and support direct on-site readings.
3、 Occupational Health and Safety
Workplace exposure assessment
Scenario: Industries with high exposure to benzene derivatives such as petrochemicals, furniture manufacturing, and footwear.
Function: Monitor the concentration of benzene, toluene, and xylene in the air of the workplace, assess the health risks of workers, and ensure compliance with the Occupational Exposure Limits for Hazardous Factors in the Workplace (GBZ 2.1-2019).
Data requirements: Support calculation of 8-hour time weighted average concentration (TWA) and short-term exposure limit (STEL).
Emergency rescue support
Scenario: Scene of fire, leakage and other accidents.
Function: Quickly detect the concentration of toxic and harmful gases, guide rescue personnel to wear protective equipment, and delineate safe areas.
Equipment characteristics: It needs to have explosion-proof design (such as Ex d IIB T4 level) and adapt to harsh environments.
4、 Research and Teaching
Research on Pollution Characteristics
Scenario: Analysis of atmospheric VOCs sources and study of photochemical reaction mechanisms.
Function: Analyze the composition characteristics of NMHC and benzene derivatives from different pollution sources (such as motor vehicle exhaust and industrial emissions), and provide scientific basis for pollution control strategies.
Technical requirements: High resolution chromatography columns (such as DB-624) and mass spectrometry (GC-MS) to achieve complex sample separation.
teaching experiment
Scenario: Laboratory of environmental science, chemical engineering and other related majors.
Function: Used for teaching VOCs detection methods, instrument operation training, and student experiments.
Equipment selection: Prioritize portable or laboratory grade analyzers that are easy to operate and have high safety.