الفهرس Only 14 pages are availabe for public view
 |  | from | 142 |  |  |
| | | from | 142 | | |
Abstract
This work presents a model for UOP hydrogen once through (HOT) penex process using aspen HYSYS petroleum refining V7.3. The model relies on routinely taken samples of process streams and normal operating conditions of Penex unit located in Cairo oil refinery. Due to absence of detailed analysis of C7 + fraction in feed, a de - lumping procedure of this fraction has been conducted using available bulk properties. Acquired data sets have been tested and screened to ensure data validity for building the model and avoiding erroneous results. A reaction network with 20 reactions and 19 components has been used for the reactors model. The reactors model has been validated using 4 months of plant data. In addition, rigorous tray by tray simulation of isomerate stabilizer has been utilized to match the performance of plant stabilizer close enough. The model has then been used for studying the effects of each process variable on plant performance