Measurement and Testing Interface measurement of oil, emulsions and water in desalters
Interface measurements in desalters are often regarded as not being very critical, even though every drop of oil, to be refined, passes through the desalter. As refineries try to maximize their margins, so-called opportunity crudes are often used. These crude oils generally contain increased levels of sulphur, oil sands, bitumen, heavy oils and oils with high TAN. This can lead to problems with the proper operation of the desalter. In addition, refineries are increasingly confronted with stricter environmental regulations. The efficient level control of water,emulsions and oil layers in the desalter ensures that salts and minerals are effectively removed and that environmental requirements are met. Therefore, more and more operators are turning to radiometry as a highly reliable and accurate measurement solution for this application.
Schematic representation of the Multiphase Level Measurement Emulsion SENS with scintillation detectors mounted outside the vessel.
If a clearly defined interface is formed, different technologies can be used for interface measurement. If a larger emulsion layer is formed, for example, when using “opportunity crudes”, with a significant density gradient change from oil to water, using alternative measurementtechnologies can lead to errors. These cannot determine the height of the emulsion layer and always assume only one separation layer (or interface). This can lead to misinterpretations and the level is either too high or too low.
If the level is too low, hydrocarbons can be entrained with the water/brine effluent and be sent to the waster water treatment plant, where it can cause environmental issues and potential penalties. If the level is too high, it can cause the electrostatic grids to short, therefore potentially allowing water, salts and minerals to be carried over with the crude oil, where water can damage to the distillation columns, salts can cause corrosion issues and fouling of heat exchangers/furnace tubes and minerals such as iron (Fe) can deactivate downstream catalyst.
In addition to controlling water and brine levels, the EmulsionSENS interface measuring system from Berthold Technologies allows you to continuously monitor the gradient change in density to ensure that the water content in the area of the electrostatic grids stays within defined limits, preventing short circuits. In addition, the emulsion layer can be kept continuously at the desired level with the help of an EmulsionSENS, which leads to a significant reduction of the “emulsion breaker chemicals”.
Thus, we reduce the probability of upsets for our customers and maximise throughput in the desalter. This process optimisation saves money in the long term. According to customers and experts, these are savings of $100,000 to $300,000.
More information online:
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Next generation of portable oil analyser features upgraded electronics, software, memory and ergonomics
email: For More Info, email: email:
Spectro Scientific has released a new generation of its field-proven FluidScan® mid-infrared spectrometer handheld oil analyser.
Patented FluidScan technology collects light transmitted through one drop of a fluid sample and registers the infrared absorption spectrum. The analyser compares spectrum data to a built-in fluid reference library and provides rapid, on-site analysis of in-service lubricants. Analysis takes less than one minute,
users need no special training, and the process requires no solvents or complicated cleanup.
The new generation FluidScan analysers have upgraded digital electronics and faster embedded processors with new software and calculation algorithms that speed the analysis process. It hosts more data and algorithm storage with much larger memory. The new oil
library includes almost 800 oils and greases of a wide range of chemistry and brands. The grease library is significantly expanded and a new water index parameter helps users track dissolved water trends in used grease.
New software algorithms include a fluid integrity parameter that permits users to determine if a substance with a different chemistry is mixed with the lubricant, a common problem in oil top-off process. In addition, a new biodiesel detection algorithm measures the percentage of biodiesel fluid in engine oil. When combined with the Spectro Scientific FDM 6000 series fuel dilution meters, a more accurate measurement of total biodiesel and diesel dilution percentage can be obtained. Fuel dilution is one of the biggest problems identified in engine oil analysis.
A new ability to make corrections to stored factory fluid data eliminates the need to create new user fluid entries to correlate FluidScan results with those from commercial laboratories.
Ergonomic improvements include a 50 percent larger and brighter LCD screen. A new LED light in the sampling head enables users to quickly check for air bubbles in an oil sample, supporting improved measurement quality.
The new release of FluidScan analysers includes two models. FluidScan 1000 is designed as a standalone unit for fleet operations or oil analysis labs, supported by Spectro’s Fluid Manager software. FluidScan 1100 is engineered to operate on a standalone basis or as part of a Spectro MiniLab configuration. Fluid Manager software and the newly introduced TruVu 360™ Device Console (TDC) software support it.
Spectro Scientific president and CEO Brian Mitchell said, “This new release represents the ongoing evolution of FluidScan analysers and also illustrates the continual improvement of Spectro products overall, as our company constantly works to provide our customers with the most advanced, precise and convenient fluid analysis tools possible.”
More information online:
ilmt.co/PL/yKpR For More Info, email:
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47670pr@reply-direct.com i-Fischer® DIST D-1160 CC i-Fischer® DIST D-5236 CC ILUDEST Destillationsanlagen GmbH
Dachdeckerstr. 1, 97297 Waldbüttelbrunn, Germany, Tel.: +49 (0) 931 497 090, E-mail:
sales@iludest.de
iludest.de i-Fischer® DIST D-2892 CC
49224pr@reply-direct.com
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Ghawar oil field has enough reserves to fill 4,770,897 Olympic swimming pools
Saudi Arabia’s Ghawar field is the largest in the world. It has an estimated 75 billion barrels of oil left. An Olympic-size swimming pool can hold 660,253.09 gallons of liquid. Source: US Energy Information Administration
more than
thinking ahead years
Your requirements are our challenge.
Every ILUDEST-/i-Fischer-system is a unique high-end product that precisely meets the specifi c concepts of our customers and turns challenges into solutions.
100 ml per day or 100 litres per hour, solvents or acids, scents or crude oil, at 350 °C or 10-3
mbar.
With a strong focus on oil analysis in accordance to ASTM D2892, D5236, D1160.
OCTOBER / NOVEMBER •
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