Detailed hydrocarbon analyser (DHA)
High resolution GC solutions for detailed characterisation of petroleum streams,
delivering accurate component identification, PIONA reporting and physical property calculations.
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High Resolution Detailed Hydrocarbon Analysis
Detailed Hydrocarbon Analysis is an essential technique for characterising petroleum products such as gasoline blending components, naphtha, reformate and crude oil fractions. By separating and quantifying as many individual hydrocarbons as possible, DHA provides valuable insight into product quality, blending behaviour and processing performance.
The GAS Detailed Hydrocarbon Analyser is a custom configured GC solution designed to meet all major international DHA standards including ASTM, ISO, IP and EN methods. Leveraging proven GC technology and the Thermo Scientific™ GC 1600’s superior oven stability for dependable temperature control, the analyser delivers highly repeatable component identification using retention index databases. Fully integrated DHA calculations in the Chromeleon data system enable automated reporting of individual components, PIONA group types and key physical properties without the need for external software.
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Applications
- Supported methods:
ASTM D5134, D6729, D6730, D6733, D7900, IP 601, Fast DHA, DHA Front End. - Detailed Analysis of Gasoline Blending Streams
Full characterisation of naphtha, reformate, alkylate and other light petroleum streams. - Individual Component Identification
Separation and quantification of hundreds of hydrocarbons using retention index based databases. - PIONA and Group Type Reporting
Automated grouping of paraffins, iso paraffins, olefins, naphthenes, aromatics and oxygenates. - Physical Property Calculation
Calculation of RON, MON, density, vapour pressure, molecular weight and heat of combustion. - DHA Front End Analysis for Crude Oil
High resolution SIMDIST analysis of light hydrocarbons up to C9, merged with HT-SIMDIST data.
Benefits
- Compliance with International Standards
Supports ASTM D5134, D6729, D6730, D6733, D7900, IP and ISO DHA methods. - Integrated DHA Calculations
Fully embedded calculation and reporting modules in Chromeleon CDS. - High Resolution Separation
Long capillary columns maximise component separation and identification reliability. - High Uptime and Low Maintenance
Modular InstantConnect injector and detector technology enables fast service and minimal downtime. - Expandable to Simdist Merge
DHA data can be merged with simulated distillation for advanced crude oil characterisation.
Downloads – CO2 Analysers
Access brochures, technical datasheets, application notes, and software updates for CO2 Analysers
Detailed Hydrocarbon Analyser Datasheet
This datasheet describes the GAS Detailed Hydrocarbon Analyser, including GC configuration, column selection, integrated DHA software and reporting of individual components, PIONA group types and physical properties.
Crude Oil Analyser Simdist DHA Merge
This application note explains how high resolution DHA front end analysis is combined with high temperature simulated distillation to generate an accurate True Boiling Point curve for crude oil samples according to ASTM D7900.