The new Yokogawa TruePeak Tunable Diode Laser Spectroscopy (TDLS200) Analyzer is one of the most robust process analyzers available designed to make fast, accurate measurements on near-infrared absorbing gases in harsh process environments, where conditions are of high temperature or pressure, it can be used under difficult conditions including environments involving corrosive, aggressive and high particulate content materials.
The TruePeak Tunable Diode Laser Spectroscopy (TDLS200) Analyzer is ideally suited to in-situ analysis, particularly for measurements in environments involving changing pressure or temperature. It can operate with process pressures up to 20 bar absolute and process temperature up to 1500°C, has a fast response (from 2 to 20 seconds), and is interference-free for most applications.
It can measure Carbon monoxide (CO), from low ppm detection limits to percentage levels at process temperatures of up to 1500°C. The analyzer can also be used for measuring parts per million moisture content in corrosive and aggressive process streams including chlorine and hydrocarbons.
It offers a range of flexible installation options, and features on-board diagnostics. Using a tunable diode laser as a monochromatic light source offers the benefits of sensitivity, selectivity to resolve single absorption lines, and power – to overcome the effects of optically thick environments with high particulate loading.
The new instrument is one of the most robust process analyzers available. In addition to operating in conditions of high temperature or pressure, it can be used under difficult conditions including environments involving corrosive, aggressive and high particulate content materials.
The TruePeak Tunable Diode Laser Spectroscopy (TDLS200) Analyzer is a compact stand-alone unit with available in a 4´20 vacuum fluorescent display for scrolling information or a 7-inch color screen with keypad. The instrument offers a range of interfaces including Ethernet, USB communication for safe or hazardous areas.
The instrument includes three configurable 4-20 mA outputs, two 4-20 mA inputs in case of temperature and pressure compensation, and relay outputs including warning/fault relays and 3 valve drivers for validation or stream switching.
The ability of the new The TruePeak Tunable Diode Laser Spectroscopy (TDLS200) Analyzer to carry out accurate online process measurements makes it ideally suited to applications such as combustion control, where it can be used to optimize the combustion process by measuring excess oxygen and carbon monoxide on a precise and continuous basis.
It also allows carbon monoxide to be accurately measured on a continuous basis at low ppm levels so that air fuel ratios can be precisely and continually optimized.
Other potential applications of the TruePeak Tunable Diode Laser Spectroscopy (TDLS200) Analyzer include the monitoring of carbon monoxide, methane and moisture to enable burner flame-out and process tube leaks to be identified; the measurement of oxygen on flare lines, alkylation units and gas plants; the monitoring of carbon monoxide and oxygen on fluid catalytic cracking units for safety and catalyst regeneration; or the detection of low ppm concentrations of moisture in hydrocarbons in catalytic reforming processes.
Подробно
- In Situ Analysis
- Fast Response (2-20 seconds)
- Interference Free for most applications
- TruePeak measurement capable of measuring under changing pressure, temperature and background
- Process Pressures up to 20 Bar
- Process Temperature up to 1500°C
- Optical Measurement, no sensor contact with process
- Low LTCO (no moving parts, high MTBF for components)
- Flexible Installation Options
- On Board Diagnostics
- ATEX Group II for zone 1 (Cat 2G) or 2 (Cat 3G) with purge systems
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In recent years, shale gas extraction technology has made rapid progress, inducing a shale gas revolution mainly in the USA. Thus, the need for analysis of hydrocarbon gases, including natural gas, is expected to grow rapidly. Traditionally gas chromatography has been used for the analysis of hydrocarbon gases; it can accurately measure the concentration of each hydrocarbon component in a sample of natural gas.
Combustion furnaces such as heating furnaces and boilers in plants include various sizes and types, and serve as energy sources, that is, they are cores in all production activities. Because a large amount of fuel such as gas or fuel oil is consumed in plants, their combustion efficiency directly affects the performance and running cost of the plants.
A laser gas analyzer employing the tunable diode laser absorption spectroscopy (TDLAS) method has a feature capable of measuring the concentration of the sample gas with high selectivity for gas components and without contact only by irradiating the gas sample with light from a tunable diode laser. Thus fast and accurate in-situ measurements can be performed in process lines under various measurement conditions.
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