Perhaps the most valuable portion of the EHY2102 syllabus is the . Specifically, the Naphtha Hydrotreater (NHT) and Diesel Hydrotreater (DHT).
Column specification (RadFrac)
Consider a typical 100,000 BPD refinery:
Aspen HYSYS is a leading process simulation tool widely used across the oil & gas and refining industries to design, analyze, and optimize unit operations. For chemical engineering students and process engineers (course code EHY2102 style), mastering HYSYS is essential for translating theory into practical process design: steady-state mass/energy balances, thermodynamics, equipment sizing, and process control studies. This post walks through the typical refining unit operations modeled in HYSYS, best practices for building robust simulations, common pitfalls, and a sample project workflow for Unit O (a representative refinery unit) with step-by-step guidance, suggested checks, and interpretive tips. EHY2102 Aspen HYSYS Petroleum Refining...Unit O...
EHY2102 is a specific course or training program focused on Aspen HYSYS Petroleum Refining, which covers the application of HYSYS in the context of petroleum refining processes. This program aims to equip engineers and researchers with the skills and knowledge required to model, simulate, and optimize various refinery processes using HYSYS. The course likely covers topics such as crude oil characterization, refinery process modeling, unit operation modeling, and case studies of industrial refinery processes.
: Creates simplified models for operations like Delayed Cokers. Workflow for Refinery Simulations
Engineers use the steady-state simulation to identify bottlenecks. For example, they can determine if a particular distillation column requires larger condenser capacity or if a specific pump will cavitate under increased throughput. Perhaps the most valuable portion of the EHY2102
Example scenario in EHY2102: “Given a Middle Eastern crude assay (API 32, 2.5 wt% sulfur), design a CDU to overflash 5% to prevent coke formation in the furnace.”
Completing is often a differentiator for:
For CDU/VDU: set the bottom product flow rate slightly lower than the actual feed rate minus all side draws. This creates a small liquid holdup (overflash) that stabilizes the bottom temperature. This program aims to equip engineers and researchers
By internalizing the EHY2102 principles, you transition from a "button pusher" to a true process authority. In the high-stakes world of petroleum refining, that distinction is worth every barrel.
Unit operations are the building blocks of any petroleum refinery. These operations involve the separation, conversion, and treatment of various petroleum fractions to produce a range of products, including fuels, lubricants, and petrochemicals. Common unit operations in petroleum refining include:
Petroleum refining operates on highly non-linear, complex, and integrated asset networks. Modern economics demand rapid adaptation to "opportunity crudes," shifting market prices, and stricter environmental regulations. This article provides an exhaustive deep dive into the core methodologies, specialized unit operations, and optimization workflows taught under the EHY2102 curriculum. Core Foundations of Aspen HYSYS Petroleum Refining