Air Monitoring 19 A Unique Analyser for Quick and Direct Measurement of NO2
The European Directive 2008/50/EC requires the measurement of nitrogen dioxide (NO2) in all urban areas of more than 100 000 inhabitants. Currently, some of these sites do not meet minimum pre-set quality objectives. Sites located in the vicinity of roads, directly impacted by vehicle emissions are most likely to experience poor air quality.
The reference method for the measurement of nitrogen dioxide (NO2) and oxides of nitrogen (NOx) as described in EN 14211 (2005) is chemiluminescence. This technique is based on the reaction of nitric oxide (NO) with Ozone (O3) and requires high maintenance and has some negative aspects.
Potential errors can arise when measuring the concentrations of NO and NO2 depending on the duration of the measurement cycle. If part of the light energy produced by chemiluminescence is lost in collisions with other molecules present in the sample, such as moisture, under-estimation
of the sample may occur. Conversely, a risk of overestimating of NO2 concentrations if other species are converted to NO2 in the NO catalytic oven can occur. Finally there is a degree of error in the conversion efficiency of the furnace.
In 2010, to alleviate these potential disadvantages and to provide the most accurate value for NO2 concentration measurements, ADEME (French Environment and Energy Management Agency) supported Environnement SA’s (France) developed an analyser for direct continuous and fast (less than 10 seconds) measurement of NO2. This development, conducted jointly between research university laboratories and
Environnement S.A, led to the design of the AS32M analyser. Based on Cavity Attenuated Phase Shift Spectroscopy (CAPS), the analyser is designed to provide fast and accurate measurements. Extremely compact, easy to use and to maintain, the AS32M is equipped with a large touch screen permitting one-touch control of the system as well as pre-configuration of analysis tasks.
Reader Reply Card No. Gas Conditioners Complient with CEMS Integrators
The JCL 301 from JCT (Austria) series offers availability, safety and long-term stability for extractive analysis. It optimises constant emission monitoring of industrial combustion processes. This innovation fulfils all needs and expectations of system houses, providing inexpensive procurement and assembling.
The conditioners incorporate an advanced modular design. Housings are available in wall-mount and 19”-rack. Delivery in compact basic units for 1 or 2 gas paths, extended versions for up to 4 gas paths and corresponding numbers of integrated condensate pumps. Added options like condensate leakage monitors, gas filters, flow meters, guarantee comprehensive gas conditioning. Preventive monitoring, fault diagnosis, and RS485 interface increases the operating reliability significantly.
Reader Reply Card No.
Environmental Firm Adds Middle East Office
56
New Compact Gas Pump Launched
Bühler Technologies GmbH(Germany) recently launched their new Compact Gas Pump P1.1 during the very successful Achema Exhibiton.
As in all existing Bühler gas pumps, the driving heart of the pump is a bellow made from solid PTFE permitting high reliability and long lifetime for a multitude of applications. For gases containing entrained liquids or where condensation formation could occur, the head can be pointed downwards (180o
). Maximum delivery
is 280 l/h and depending on application, placement before or after the cooler is possible thus enabling use of auto-drain systems. Other features include quick simple installation, easy access and an attractive price.
Reader Reply Card No. 55 54
Clean Air Engineering (CleanAir) announced today the opening of CleanAir Arabia Co. Ltd. located in Jubail Industrial City, Saudi Arabia. CleanAir Arabia is an air emissions measurement company that is a joint venture between the National Laboratory Company Ltd. (MAAMEL) and CleanAir (USA). It has been approved by the Saudi Arabian Government Investment Authority (SAGIA) and received its Commercial Registration in March, 2012.
"The growing number of industrial facilities being constructed and Saudi Arabia's commitment to improved environmental standards has resulted in the need for more stringent emissions monitoring and stack emissions testing from high quality service providers", said Mr. Kamal Al Juhani, MAAMEL's Managing Director and CleanAir Arabia's Chairman of the Board. "With the expertise of the founders, CleanAir Arabia will provide the highest quality process gas stream and stack emissions measurements in the region for a multitude of industries with a highly qualified, trained and well equipped staff."
Key management positions are filled by two CleanAir Sr. Environmental Engineers: Eng. Jim Guenthoer, General Manager and Eng. Robert Pegnam, Technical Leader, who collectively bring over a combined 50 years of air emissions measurement expertise gained in the United States to this region. "Since relocating to Jubail this past March, our focus has been on completing our new facility's renovations, relocation of personnel and equipment from the U.S., and the recruitment and training of local Saudi personnel to meet our Saudization goals", said Jim Guenthoer. "With the Royal Commission of Jubail's recent approval to begin performing tests I am pleased to say CleanAir Arabia is now operational."
Reader Reply Card No. 57 Reader Reply Card No. 58
www.envirotech-online.com IET September / October 2012
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