Aspen HYSYS - Petroleum Assays and Oil Characterization

Model a hyper component with physical properties, using normal boiling point, molecular weight, density, and if available, the critical temperature and pressure and eccentricity factor to estimate all data.

Model hypo component properties in Aspen HYSYS by using the structure builder to define its structure, emphasizing functional groups like hydroxyl, carboxyl, ketone, and amine with 90–95 percent accuracy.

Convert an existing component into a new hypothetical benzenalike component by cloning and adjusting properties. Modify molecular weight and composition, set base properties, and prepare the HYSYS model for simulation.

Define what a crude oil assay is and why it matters for modeling feedstock in Aspen HYSYS. Reveal physical properties and composition, including sulfur, metals, and gasoline yields.

Import petroleum assays by region from a library of over 600 assays, including West Texas Intermediate, filter by region and oil type, and import into petroleum assets.

Plot petroleum assay data with the petroleum assays manager, comparing viscosity and distillation curves across cuts and assays. Analyze density changes with temperature and identify the convenient distillation profile.

Plot two petroleum assays side by side to extract material properties, crude oil composition, and cuts, enabling a direct comparison of two crude oils.

Plot and compare data from two or more petroleum assays, analyze densities, sulfur content, and distillation cuts, and evaluate model behavior against West Texas Intermediate.

Input an assay in Aspen HYSYS using two data points, volume percent versus temperature, or two bulk properties like molecular weight and density, to run a simulation.

Model naphtha input in the Aspen HYSYS workflow using the ASTM D86 distillation format, applying the Rubinson full-package properties (density in API units and Watson cable), and ignore light ends.

Delve into kerosene input handling in Aspen HYSYS, setting API density, net kinematic viscosity, and molecular weight ranges, and create a kerosene assay with distillation data under ASTM D86.

Configure input data extrapolation settings in Aspen HYSYS, comparing Lagrange and least-squares methods for petroleum assays and oil characterization to optimize model parameters using standard temperatures and Peng Robinson density.

Input discrete assay data for hydrogen sulfide, CO2, methane, ethane, propane, and light ends into Aspen HYSYS, using chromatographic curves to define paraffins, aromatics, and naphthenes.

Explore blending crude oils by modeling a naphtha and kerosene mix in Aspen HYSYS, examining composition profiles across temperatures and ratios, including 50/50 and other blends, and interpreting simulation outputs.

Install the oil from workshop 18, blending three cuts to match the assay properties, and review naphtha, kerosene, gasoline, and diesel distributions before proceeding to the preheating trade.

Apply the final specifications to set up and converge the column in Aspen HYSYS, then verify via the monitor tab with flow rates, temperatures, and column data.

Explore the top petroleum refining Q&A, clarifying pump arounds in the crude distillation unit, vacuum column packing, reforming vs isomerization, splitters, and key fuel properties.