Measurement and Testing State of the art Distillation Process Analyser
BARTEC BENKE satisfies the market requirements to achieve faster response times with the design to give continuous results to be fully compliant with the ASTM D86 standard but – if required – is capable of giving faster results at any time. The redesigned Distillation Process Analyser DPA-4 is suitable to determine each distillation point ranging from IBP to FBP.
Due to the new design, the analyser is capable of giving measurement results at reduced pressures which in effect reduces the measurement temperature. This allows handling samples which tend to coke.
New procedures have been developed to shorten the complete measuring cycle, including the preparation of the analyser after a distillation cycle has ended. The heat transfer between the sample and hot surfaces has been improved. Therefore, the time required to cool-down the analyser is reduced. Additionally, the implemented pressurised flushing ensures a fast evacuating procedure to get the analyser ready for the next measuring cycle and a “N2-stirrer” prevents the bumping and super-heating of the sample during heating of the sample within the flask. Reduced maintenance efforts are the result of the automatic de-coking and fast clearing procedure which minimises the risk of plugging. Due to the undertaken redesign the dimensions of the analyser are reduced and the Ex-protection gas group is by default IIB+H2.
By having the possibility of switching methods from Standard Analysis Method (SAM) to the new implemented Rapid Analysis Method (RAM), the user can obtain a faster response and reduced cycle times by approx. 40%, compared to SAM. The RAM procedure still uses the same apparatus specified according to the ASTM D86 standard, and therefore provides comparable results. The two tuning capabilities available result in a significant reduction of the cycle time. It is possible to switch between SAM and RAM methods at any time. To prove for reliability, several measuring cycles could be ran according to the RAM method and for validation purposes, the SAM method for a measuring cycle from time to time could be used.
The only ASTM D86 compliant Distillation Process Analyser
The DPA-4, based on an established standardised robust design, is suitable for installation in hazardous areas and is available with ATEX Zone I, CSA C/US Class I, Division 2, Zone I and GOST R certification. Other certifications are available on request. Optionally the analyser can be equipped with state of the art communication interfaces, customised sampling conditioning systems and closed loop chiller units.
In summary, refineries now have the opportunity to achieve faster response times for their process control tasks by implementing a state of the art distillation process analyser which offers the possibility to have shorter measuring cycle times. This will positively influence profit maximisation as the refineries are able to react faster to process fluctuations which cause produced fuels to be not within specifications. Depending on the specific needs a refinery might have, there is an analyser which is ASTM compliant for measuring the full distillation curve, with the added options to shorten cycle times, available.
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Major Contract Won for Sulphur Analysers at Al Hosn Gas Project
Ametek Process Instruments (USA) has been awarded US$4.6 million contract to supply UV process gas analysers for the Abu Dhabi Gas Development Company’s (Al Hosn Gas) Shah Gas Field project. The analysers will be used in the Sulphur Recovery Units (SRU) and Tail Gas Treating Units (TGTU), expected to be the largest complex of its type in the world.
Saipem, the project management company, selected Ametek because of its extensive experience in sulphur recovery operations worldwide and the performance of its analysers on similar projects. The $10-billion Shah Gas Field project is among the largest green field gas development projects ever undertaken. It is expected to process approximately one billion cubic feet per day (bcf/d) of sour gas into 0.5 bcf/d of usable gas.
The project includes installation of the following Western Research analysers: Twelve Model 900 Air Demand Analysers. Developed specifically to meet the requirements of the latest sulphur recovery processes, the versatile unit measures up to five species simultaneously;
Twelve Model 931 Single-Gas Analysers. A rugged, single-component photometric gas analyser housed in an explosion-proof package, the
Model 931 uses Ametek's proprietary high-resolution UV technology that features no moving parts;
Four Model 930 H2S Vapour Space Analysers. Developed to accurately measure H2S vapour in pits used to store liquid sulphur, the Model 930 is field-proven to reliably monitor both H2S and SO2.
Ametek Process Instruments is a specialist in the design and manufacture of on-line analytical instrumentation based upon eleven differentiated technology platforms. It is a unit of Ametek, Inc., a global manufacturer of electronic instruments and electromechanical devices with annual sales of more than $3.3 billion.
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Waterproof Connections for Hazardous Environments
The Bulgin EXPlora range of environmentally sealed circular connectors from Elektron Technology (UK) is designed and approved for use in ATEX Zone 2 and Zone 22 applications, providing fast and easy screw fixing connections without the need for special tooling. The EXPlora series builds on the success of Bulgin’s renowned Buccaneer range of compact IP66, IP68 and IP69K rated connectors, offering the convenience and flexibility of these robust, dust and waterproof connectors for an even wider range of applications.
EXPlora connectors are manufactured from durable UL94V-0 rated polycarbonate materials, and work in ambient temperatures from -20 to +55 oC. They are designed for a wide variety of applications requiring secure, reliable and easy to terminate connections, with a choice of 2, 3, 4, 5, 7 and 10 pole variants and positive location keyways to prevent incorrect coupling. Alongside the recently launched Buccaneer 6000 series and the new Buccaneer 7000 series of push-pull connectors, these robust and convenient connectors provide maximum flexibility for product designers and engineers.
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26292pr@reply-direct.com New License-Free HART Handheld Configurator
ABB’s (UK) new DHH805 lightweight handheld configurator significantly reduces the cost and complexity of configuring HART instruments in the field.
The DHH805 allows easy parameterisation of any manufacturer’s HART device provided its EDD (Electronic Device Description) is released from the HART foundation. There are no expensive license renewals as the EDDs necessary for the update can be downloaded directly from the HART foundation or a manufacturer’s website.
Device configurations can be created off-line, stored in the DHH805’s memory and uploaded to the device at another time.
Featuring ABB’s common HMI platform, the configurator can be powered up in less than 10 seconds. Its powerful battery provides 80 hours of continuous use before recharging.
The DHH805 is delivered with a Windows compatible PC-Tool that will notify users of firmware and software updates, which can be downloaded free of charge. With the DHH805 PC-Tool, users can activate and register their device; carry out EDD listing and uploading; and adjust configuration settings.
The device is fully certified for hazardous areas. Its 2 GB SD memory card can store up to 1000 HART EDDs, together with 200 separate device configuration files.
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For More Info, email: AUGUST / SEPTEMBER 2013 •
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