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Making Crude Assays Easy: Fast Crude Oil Characterization for Sulfur, Nitrogen and Carbon using Gas Chromatography
Crude Oil Characterization for Sulfur, Nitrogen and Carbon from a Single Analysis• Fast Hydrocarbon, Nitrogen, and Sulfur Boiling Point Distribution Information
• Comparable to ASTM D2887, D6352, D7500 and D7169 SIMDIS Methods• Advanced Hardware Design for Wide Boiling Point Range Coverage (FBP up to 700°C and Unique DHA Front End for Light End Fractions)
CNS SIMDIS Analyzer for Crude Oil
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THE CNS SIMDIS FEATURES:• Dedicated software provides complete control of
the application and automates all aspects of:- specific calibration- validation- sample analysis- data reporting • Sulphur and Nitrogen data processing are seemlessly
integrated into the SIMDIS software; no extensive software knowledge is required
• Report options include: - total concentration - %mass vs boilingpoint distributions for each species - %vol conversions for crude oils - cutpoints and fractions - user dedicated boilingpoint cutpoints - recovery calculations - a suite of specific quality control reports - customizable reports for different sample types - merge reporting with DHA Front End data (optional)
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S SI
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ISCNS SIMDIS ANALyzER FOR CRUDE OILD AND CRUDE OIL FRACTIONSAC Analytical Controls pioneers the fast, simultaneous analysis of carbon, sulphur and nitrogen for hydrocarbon streams, including diesels and heavy crudes. Built around recognized simulated distillation (SIMDIS) methods with additional Chemiluminescence detectors, the CNS SIMDIS analyzer delivers accurate and comprehensive all-in-one quantitative boiling point data for Carbon, Sulfur and Nitrogen. CNS SIMDIS analysis data correlates with traditional measurement methods at a fraction of the time and cost. The CNS Analyzer allows faster decision making in the process, eliminates laborious steps in assay physical fractionation distillation, and perform simultaneous Quality Control analysis on refined products for Sulfur and Nitrogen.
Hydrocarbon
Nitrogen199 ppm N
Sulfur325 ppm S
Example of a diesel sample - A single analysis run yields three chromatograms
HyDROCARBON, NITROGEN AND SULFUR BOILING POINT DISTRIBUTION INFORMATION FROM A SINGLE ANALySIS
Over the last few years, refiners have faced declining quality of crude oils, as in many cases they are “heavier” and contain more impurities or unwanted species, such as sulphur and nitrogen. Making continuous decisions in adjusting the refining process to get the optimal amount of the best-performing products are elementary to optimizing profit. In the case of Sulphur and Nitrogen, specifications are getting more and more stringent every day, and delivering the product on-spec is critical. These components may even have detrimental effects in catalysts, so understanding their presence in products can make a difference in each refinery.
Lastly, they have an environmental interest that is getting increased attention. Crude-Assays are very time-consuming exercises that are used to learn how to cut the crude to optimize product value. In these exercises, the crude material is fractionated on boiling point and each fraction is tested in the lab for an extensive set of parameters. Sulphur content and distribution is one of the most critical
FINAL PRODUCT CUTPOINTS - OPTIMIzE PRODUCT VALUE!
Crude Oil
PrOduCT VAlue
CNS SIMDIS
NAPhThA
KerOseNe
lighT gAs Oil
heAVy gAs Oil
hydrOCArBON gAses
parameters that drives final product cutpoints and thus product value.
dhA Fe / siMdis
residue
LOW TEMP CNS SIMDIS
HIGH TEMP CNS SIMDIS
EXCELLENT ANALySIS PERFORMANCE The High Temperature CNS SIMDIS features a post column vent for heavy component fractions (>C90), to ensure the best performance. It protects nitrogen and sulfur detectors and avoids heavy residue build up in the system. The excellent sensitivity and stability of the Sulfur Chemiluminescence Detector (SCD) and Nitrogen Chemiluminescence Detector (NCD) allows for detection levels below 50 ppm depending on element and sample type. Linear Dynamic Range (LDR) is typically in excess of three orders of magnitude for sulfur and nitrogen, which is sufficient for common crudes. Additional dilution can be applied to further extend LDR.
WIDE BOILING POINT RANGE WITH CNS SIMDIS AND DHA FRONT END COMBINATIONCNS SIMDIS systems can be combined with our unique AC Detailed Hydrocarbon Analysis (DHA) Front End (FE) solution. This combination completes the hydrocarbon distribution profile for the fractions under C9 (BP<151°C). This is normally partially lost in SIMDIS as a result of dilution solvent overlap with the low boiling fractions. Specific software combines DHA and SIMDIS data into one comprehensive report with a normalized carbon distribution profile over the complete boiling point range of the sample. The figure below shows the additional DHA FE Merge.
SySTEM CALIBRATION & QUALITy CONTROLThe system is calibrated in similar fashion to ASTM methods D2887, D6352, D7500 and D7169. A set of samples is included for calibration and QC.For High Temperature CNS D6352, D7500, and D7169 methods, calibration samples are included. This calibration mix is a crude oil (bp 200-550°C) with known sulfur and nitrogen distributions, and only requires a single analysis for calibration.
Other dedicated QC samples and software features are available to monitor performance forequimolarity, sensitivity, and stability.
94.3% recovery
DHA FE: C9 (BP<151ºC)
C
N S
94.3% recovery
DHA FE: C9 (BP<151ºC)
C
Boiling Point Mass Distribution for C, N and S for a Crude Oil Sample
Linearity Plot for Sulfur
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Copyright 2012/2 PAC L.P. All rights reserved 00.00.088
AC Analytical Controls®
has been the recognized leader in chromatography analyzers for gas, naphtha and gasoline streams in crude oil refining since 1981. AC also provides technology for residuals analysis for the hydrocarbon processing industry. Applications cover the entire spectrum of petroleum, petrochemical and refinery, gas and natural gas analysis; ACs Turn-Key Application solutions include the AC Reformulyzer, SimDis, HiSpeed RGA and DHA instruments.
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SPECIFICATIONS
Analysis Scope LOW TEMP CNS SIMDIS HIGH TEMP CNS SIMDISComparable to ASTM D2887, D3710, D7096,
ISO3924, IP406ASTM D6352, D7500, D6417, D7213, D7398 and D7169, EN15199-3, IP545 (DHA FE)
Sample Type / Range Jet Fuel, Diesel Distillates, Base Oils, Lube base Stocks
Carbon Number Range C5-C44 C2-C90***Boiling Point Range FBP < 538°C (1000°F) IBP > 151°C (304°F)
FBP <700°C (1292°F)Sample Injection Neat 1-2% dilutionAnalysis Performance
S N C S N C
Sensitivity * 1 pg/sec 3 pg/sec n.a. 1 pg/sec 3 pg/sec n.a.
Limit of Quantitation** 10ppm 30 ppm n.a. 50ppm 150 ppm n.a.
Linear Dynamic Range >103 >103 >107 >103 >103 >107
r / R (Concentration) ASTM ASTMD5453 D4629
ASTM ASTMD5453 D4629
Stability of Response <10% for 10 consecutive runs in 5hrs
<10% for 10 consecutive runs in 5hrs
Equimolarity <10% < 10% n.a. <10% < 10% n.a.
Selectivity S/C: 107 S/C: 107
N/C: 107 N/C: 107 * Corrected for mass reaching detector** For distributions, single peak is more sensitive*** With DHA FE addition (option)
Ordering InformationCCG6005A SIMDIS D2887 CNS 120V -CCG6005C SIMDIS D2887 CNS 230V -CCG6006A - SIMDIS High Temp CNS 120VCCG6006C - SIMDIS High Temp CNS 230VUtilities RequirementsCarrier gas Helium (99.999%)FID fuel Hydrogen (99.999%)
Nitrogen (99.999%) and Air
Cooling Compressed dry AirSystem Power 110 - 230 VoltsAccessories Included Operating manual
Calibration samplesReference samplesStartup kitCarrier gas filtersOven exhaust deflectorFactory plumbing for quick installation C
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