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Detailed Hydrocarbon Analysis of the primary petrol, refinery compounds and final products. Precise purity determination for benzene, toluene, xylene and another petrochemical products.
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Detailed Hydrocarbon Analysisof the primary petrol, refinery compounds and final products
Precise purity determination for benzene, toluene, xylene and another petrochemical products
Quality Control for primary petroleum processing installations, catalytic reforming installations and other processing objects
Refinery Gas Analysis, Water and Sulphur determination in petroleum products
And also other standard and custom analytical measurements using UNICHROM system
Simple implementation of analytical measurements according to GOST, ASTM and other certificate documentation in automatic mode! And also The Detailed Hydrocarbon Analysis ofAUTOMOTIVE PETROLS
The gas chromatograph equipped with Flame-ionisation detector which has detection limit less than 210-12 gC/s and oven programming capability from 35 to 300 C with rate 5 C/min • Detailed Hydrocarbon Analysis is made usingAutomotive Petrol Analyser + UNICHROM-DHA
The gas chromatographic capillary column with stationary liquid phase of polymdimethylsyloxane, length 50 meters, diameter 0.32 mm and film thickness 0,52 m + Capillary column connection interface with capability of splitting carrier flow into rate 1 : 100 and detector makeup gas The most important parts of Automotive Petrol Analyser
And as result 300 identified components and the same quantity of unknowns
Software module of UNICHROM system «DHA.DLL» is automatically identifies known and unknown components Using of special algorithms for interpolation of physical and chemical substance properties to unknown components allows to complement our knowledge about petroleum sample being analysed
We made calculations using internal normalisation method taking in account detector response factors So we have gotVOLUME, MASS and MOLAR content of ALL individual hydrocarbons
Relative error of concentration determination LESS THAN± 3.6 %
Using components contentthe UNICHROM DHA module calculates the following parameters of lead-free automotive petrol • Fractional contents • Saturated vapour pressure • Motor octane number • Research octane number • Density
The automatic gas chromatographic system for detailed determination of petrol components and the basic petrol parameters www.unichrom.com
The automatic gas chromatographic system UNICHROM for the detailed hydrocarbon analysis (DHA) of various petroleum fractions and products has been developed. Samples of gasoline are analysed by temperature programmed gas chromatograph on a high-resolution capillary column which separates hydrocarbons in order of their boiling points. Individual components are identified comparing their Kovats or linear retention indices with a library of 330 components. Then all the major gasoline standardised specifications are calculated from the obtained DHA data. www.unichrom.com
As the result of single chromatographic petrol sample analysis (about 70 min) it is possible to determine such characteristics: - Detailed hydrocarbon and fractions contents (conforms ASTM D5134, GOST 6994 and ASTM D5580, GOST 8997 and GOST 2070), - Contents of aromatic components (conforms GOST 6994 and ASTM 5580), - Contents of olefin components (conforms GOST 8997 and 2070), - Fractional content (conforms GOST 2177 and ASTM D86), - Detonation stability expressed in terms of research octane number RON (conforms GOST 8226 and ASTM 2699), - Detonation stability expressed in terms of motor octane number MON (conforms GOST 511 and ASTM 2700), - Saturated vapour pressure (conforms GOST 1756-52 and ASTM 2889), - Density (conforms GOST 3900 and ASTM 4052). The high reproducibility and the reliability of developed system UNICHROM in the Central Laboratory of the Mozyr Oil Refinery (Belarus) and in The State Criminal Centre of the Home Office of Belarus has been achieved. The method is certified at The State Metrology Committee of Belarus (No. MVI.MN 998-99). www.unichrom.com
Here is petroleum analysis report with detailed hydrocarbon analysis data and distillation curve was generated using DHA data. www.unichrom.com
The typical chromatogram of gasoline www.unichrom.com
Comparison of D (Density) values calculated from GC analysis and measured by the standardised method in accordance with ASTM 4052 and GOST 3900 www.unichrom.com
Comparison of FC (Fractional Content) values calculated from GC analysis and measured by the standardised method in accordance with ASTM D86 and GOST 2177 www.unichrom.com
Comparison of MON (Motor Octane Number) values calculated from GC analysis and measured by the standardised engine method in accordance with ASTM D2700 and GOST 511. www.unichrom.com
Comparison of RON (Research Octane Number) values calculated from GC analysis and measured by the standardised engine method in accordance with ASTM D2699 and GOST 8226 www.unichrom.com
Comparison of SVP (Saturated Vapour Pressure) values calculated from GC analysis and measured by the standardised method in accordance with ASTM 2889 and GOST 1756 www.unichrom.com
Temperature of distillation, °C Distillation % FC (Fractional Content) diagram of gasoline calculated from DHA data. www.unichrom.com
The individual and border compounds of 31 chromatographic groups.Group 1 to 15. www.unichrom.com
The individual and border compounds of 31 chromatographic groups.Group 16 to 31. www.unichrom.com