Thermophysical Properties of 210 Hydrocarbon Fluids and Mixtures

NIST's SUPERTRAPP database provides thermodynamic and transport property predictions for fluid mixtures containing up to 20 components. The underlying database includes 210 components, mostly hydrocarbons, enabling calculations for phase equilibria, saturation properties, and flash calculations. It is maintained by the National Institute of Standards and Technology and was last updated in July 2022.

Use Cases

• Perform bubble and dew point pressure calculations for hydrocarbon mixtures using the database's 210 components.
• Estimate transport properties like viscosity and thermal conductivity for pure fluids and mixtures defined by up to 20 components.
• Conduct flash calculations ({T,P}, {T,S}, {P,H}) to determine phase equilibria for natural gas or petrochemical mixtures.
• Predict saturation properties for pure components using critical properties (Tc, Pc, Vc) and boiling point data from the database.

Strengths

• Database contains property data for 210 distinct chemical components, primarily hydrocarbons.
• Supports modeling of complex mixtures with up to 20 components per calculation.
• Calculates a wide range of properties including density, enthalpy, entropy, viscosity, and thermal conductivity.
• Maintained by the authoritative National Institute of Standards and Technology (NIST).

Limitations

• The SUPERTRAPP database is noted as being superseded for many fluids by the more comprehensive NIST REFPROP database.
• Primary output format is HTML, which may require parsing or conversion for programmatic data analysis workflows.
• The description does not specify the volume of underlying experimental or calculated data points, making the raw data scale unclear.

Provenance

Source

National Institute of Standards and Technology

Collection Method

Computer program (SUPERTRAPP) for predicting properties based on a compiled component database and equations of state.

Freshness

Last updated in July 2022.