Distillation project

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2010
Pro II Distillation Project
Project 11: Debutanizer Design

Pedro Tineo Héctor Castellanos 7/22/2010

MASTER of SCIENCE of EXTRA HEAVY OIL Production, Upgrading and Refining

Contents
I. -INTRODUCTION ............................................................................................................................... 5 II. - PROJECTDATA............................................................................................................................... 6 2.1 Characteristic of the feed: ......................................................................................................... 6 2.2. Specifications: .......................................................................................................................... 62.3. Additional constrains: .............................................................................................................. 6 III. - MAIN CONSIDERATIONS AND DETAILED SOLUTION OF THE PROBLEM ...................................... 7 3.1. Problem Solution Scheme ........................................................................................................ 7 3.2.Estimation of liquid-vapor equilibrium coefficients (Ki) ........................................................... 8 3.3. Column mass balance............................................................................................................... 9 3.4. Definition of overhead and bottom pressure. ....................................................................... 11 3.5. Estimationof the column theoretical number of trays for given specifications.................... 13 3.6. Study cases to determine optimum feed tray. ...................................................................... 14 3.7. Design calculations of the column. ........................................................................................ 15 3.8. Economic evaluation for each case........................................................................................ 20 IV. – MAIN OPTIMUM COLUMN........................................................................................................ 22 4.1. Main operating conditions flowsheet .................................................................................... 22 4.2. Column feed and productscharacteristics............................................................................. 22 4.3. Energy Balance ....................................................................................................................... 26 4.4. Characteristics of the main pieces of equipment. ................................................................. 27 4.5. Column profiles...................................................................................................................... 35 4.6. Sensitive tray evaluation ........................................................................................................ 40 4.7. Proposed process-control scheme. ........................................................................................ 42 4.8. Main results ofthe optimum case economic evaluation. ...................................................... 45 V. - APENDICES .................................................................................................................................. 46 5.1. Data sheet .............................................................................................................................. 465.2. Output files............................................................................................................................. 47 5.3. Detail calculations of design and economic evaluation for the final column ........................ 47

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MASTER of SCIENCE of EXTRA HEAVY OIL Production, Upgrading and Refining

List of Figures
Figure 1: Solution Scheme...
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