Measurement and Testing 43
every few days causing fall outs of measurements and the expensive CLD was defective. The plant operators' requirements were not met.
In spring 2011 another trial started. This time an analyser based on the Ultra High Temperature method at 1,200°C was tested. This system determines the TOC
and TNb by thermal combustion without the need of any expensive catalysts, as the temperature guarantees complete oxidation of all carbon compounds. This online analyser does not require any sample pre-treatment as it handles particles and salts very well. The innovative
XY-injection system injects a part of the homogenised sample into the reactor where it is combusted
completely. The so produced CO2 is detected by the NDIR detector (non dispersive infrared) resulting as TOC. Finally, the nitrogen shown as TNb is determined by use of an electro chemical cell (EC-cell). The complete digestion of the ingredients including particulates ensures the accurate analysis of the
requested parameters. In the course of the trial, this analyser proved to be a very reliable measurement system. It considered fluctuations of the sample composition, had no problems with high salt concentrations and provided an exceptionally long service life of the reactor. This online system required only little maintenance resulting in a high availability. This online technique was convincingly suitable and hence, won the test.
Since summer 2012 the LAR online TOC analyser helps to optimally monitor and control the effluent of this industrial waste water treatment plant. By reliably monitoring the organic contamination in combination with nitrogen the discharge of the waste water is optimally controlled observing the local discharge regulations.
Either the monitoring of cooling water within industrial processes or monitoring of effluent waste water of industrial WWTP: The applications challenge the online monitoring systems to be installed with various requirements. Especially high salt concentrations or high particle density may lead to technical problems such as blockages and clogging. The compositions of industrial waste water are often changing causing analytical problems and insufficient recovery rates. Specific configurations such as combination with measurement of further parameters or multi stream monitoring are requested as well. More over, innovative and accurate measurement methods in robust designs are demanded.
In order to solve such special tasks specifically customised analysers need to be installed that reliably monitor the water quality of most complex compositions. Being a specialist for online TOC analyses LAR offers a variety of analysers for the determination of TOC in combination with other parameters. Since their installations, the online analysers mentioned above optimally control the processes meeting the operators high requirements. Using the LAR measurement systems saves high maintenance costs due to technical shortcomings or analytical inaccuracy as well as operational costs due to the purchase of expensive catalysts or chemicals. The LAR TOC online analysers particularly suit difficult applications, where other analysers fail.
Fast, Easy On-Site Measurement of Hydrocarbons in Drilling Mud and Oil in Water
Portable infrared analysers, such as the InfraCal Analysers from Wilks (USA), have been used worldwide for measuring off-shore oil in produced water for over 30 years. They have the advantage over other analytical instruments in that the measurement can be performed by non-technical users and it is relatively unaffected by composition changes in the effluent. They also provide off-shore users with the necessary ruggedness and reliability that is a key requirement.
In addition to their use for measuring oil content in produced water on oil drilling platforms, portable IR analysers are ideal for both on- and off-shore oil measurements in drill cuttings. If drill cuttings are to be disposed of via land application or overboard, there are limits on hydrocarbon levels depending on the disposal choice.
While water samples typically have hydrocarbon levels in the part per million (ppm) range, drill cuttings can be in the 1-10% range. Both the InfraCal TOG/TPH Analyser Model HATR- T2 and the new InfraCal 2 Model ATR-SP are configured with horizontal ATR sample stages. Hexane, pentane or cyclohexane is used as the extraction solvent for oil in water levels from 0.3 to 1000 ppm range. The solvent is evaporated off and the infrared absorbance due to the residual oil film is measured.
The same InfraCal Analysers with an ATR sample stage can be used for the higher 1-10% range found in drill cuttings. The sample is diluted by using a solvent that does not have an infrared absorbance at the hydrocarbon wavelength such as tetrachloroethylene (perchloroethylene) or S-316 (dimer/trimer of chlorotrifluorethylene) and, therefore, does not require evaporation. The solvent dilution allows for the high percent range measurements with the same ATR sample stage used to measure the ppm levels.
For More Info, email:
27607pr@reply-direct.com
New Handheld Metals Analyser Boosts Portfolio of XRF and OES Analysers
Oxford Instruments plc (UK) have announced recently the acquisition of RMG Technology Ltd. RMG’s revolutionary Laser Induced Breakdown Spectroscopy (LIBS) system will add to its existing techniques of X-ray Fluorescence (XRF) and Optical Emission Spectroscopy (OES) to offer customers in the scrap recycling industry an extended range of metal analysers to suit every requirement. The addition of RMG’s exciting new mPulse handheld analyser to the product range opens up new markets and truly makes Oxford Instruments the first choice in metals analysis with its innovative and unique metals analysis technique. LIBS offers enhanced ease of use, ultra fast analysis and truly light weight rugged portability.
RMG will become part of the Oxford Instruments Industrial Analysis Division based near Oxford in the UK. This acquisition is great news for RMG customers as it brings all the benefits of a larger market leading, high quality global brand synonymous with world beating scientific instrumentation and a history of award winning innovation. It opens up a new global network of sales, service and support and brings the benefit of a strong new product development pipeline supported by increased investment in R&D. This underlines Oxford Instruments determination to build on and strengthen their offering to customers requiring simply the best metals analysis solutions without compromise and supports our strategy to become one of the first choice's in Metals analysis.
For More Info, email:
27654pr@reply-direct.com
Are you interested in what you have read and want to know more?
email:
1109ad@reply-direct.com ANNUAL BUYERS’ GUIDE 2014 •
WWW.PETRO-ONLINE.COM
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52 |
Page 53 |
Page 54 |
Page 55 |
Page 56 |
Page 57 |
Page 58 |
Page 59 |
Page 60 |
Page 61 |
Page 62 |
Page 63 |
Page 64 |
Page 65 |
Page 66 |
Page 67 |
Page 68 |
Page 69 |
Page 70 |
Page 71 |
Page 72 |
Page 73 |
Page 74 |
Page 75 |
Page 76 |
Page 77 |
Page 78 |
Page 79 |
Page 80 |
Page 81 |
Page 82 |
Page 83 |
Page 84 |
Page 85 |
Page 86 |
Page 87 |
Page 88 |
Page 89 |
Page 90 |
Page 91 |
Page 92 |
Page 93 |
Page 94 |
Page 95 |
Page 96
