Determining the accurate boiling point distribution of crude oils and heavy petroleum fractions is a fundamental requirement for refinery process optimization. While conventional simulated distillation (Simdist) methods like ASTM D7500 and D7169 are widely adopted, they often face distinct analytical challenges, such as CS2 solvent quenching and a lack of resolution across the C5-C9 light hydrocarbon range due to thin-film separation columns.

To definitively overcome these limitations, the GAS Crude Oil Analyser introduces an innovative Simdist-DHA Merge capability. By integrating Detailed Hydrocarbon Analysis (DHA) for the high-resolution front-end light components with high-temperature Simdist for the heavier fractions, the system generates a highly precise and comprehensive True Boiling Point (TBP) report. The hardware architecture utilizes two specialized Thermo Trace GC1600 systems—one dedicated to DHA equipped with a Programmable Temperature Vaporiser (PTV) featuring a backflush option to actively prevent heavy oil column accumulation. Both systems efficiently share a single Triplus autosampler to conserve laboratory space and reduce capital costs. Furthermore, all complex merging and distillation calculations are fully embedded directly within the Chromeleon data system, eliminating the need for error-prone data exports to external software.

Benefits

Full Method Compliance: The system is expertly designed to support a vast array of international standards, effortlessly accommodating ISO, IP, DIN, CEN, and ASTM SIMDIST methodologies across numerous applications.

Integrated Data Processing: Featuring dedicated SIMDIST Calculator software embedded directly within the Chromeleon CDS, it facilitates completely automated data analysis, fraction merging, and final reporting without external tools.

Optimised Injector Technology: It incorporates sophisticated injection mechanisms, prominently including the PTV with backflush capabilities, to consistently deliver reproducible and highly accurate analytical results while protecting column integrity.

Flexible Configuration: The analyzer offers exceptional adaptability, allowing facilities to select from various autosamplers, detectors, and injector configurations to meet highly specific laboratory demands.

DHA Merge Capability: Users can significantly enhance their crude oil assessments by seamlessly merging front-end DHA data with standard simulated distillation results, achieving unparalleled accuracy in accordance with ASTM D7900.

Petroleum Product Characterisation: Rapidly and accurately evaluate the exact boiling point distributions of various refined products, industrial solvents, and commercial fuels.

Crude Oil Analysis: Seamlessly generate comprehensive True Boiling Point (TBP) profiles tailored for raw crude oil and its heavier fractional components.

Refinery Process Optimisation: Empower petrochemical facilities to tightly control manufacturing processes and optimize product blending strategies by utilizing precise, real-time distillation data.

Lubricants and Base Oils: Effectively investigate the distinct distillation profiles and evaporation behaviors of complex lubricating oils and base stocks.

Quality Control Laboratories: Conduct routine, high-throughput SIMDIST evaluations utilizing highly automated operational workflows and streamlined reporting structures.

The analyser is fully designed to comply with the following major industry standards:

1. ASTM D3710

2. ASTM D7096

3. ASTM D5399

4. ASTM D2887

5. ASTM D5442

6. ASTM D7213

7. ASTM D6417

8. ASTM D6352

9. ASTM D5307

10. ASTM D7500

11. ASTM D7169

12. DIN 51581-2

13. DIN 51435

14. IP 406

15. IP 480

16. IP 507

17. IP 545

18. EN 15199-1

19. EN 15199-2

20. EN 15199-3

21. ISO 3924

AN5WA0225B-merge

GAS_PD100v1

 AN205WA0724N-simdist