Distillation — Managing Challenges, Optimizing Outcomes


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When it comes to distillation — a workhorse unit operation at chemical process plants — efforts to design, specify and operation columns are just as important as efforts to maintain, troubleshoot and revamp them.

Modern revamps typically include efforts to troubleshoot and upgrade ancillary equipment such as reboilers, condensers, pumps, valves, heat exchangers and instrumentation. Increasingly, process simulation plays a role, to help engineers evaluate the performance of proposed and existing distillation columns.

This Chemical Engineering PDF guidebook provides a diverse collection of engineering articles related to the the operation and optimization of distillation units and related auxiliary systems. 

119 pages, delivered in a PDF format.

Table of Contents

Column Revamps: From Outside to Inside
Some of the many things to consider for this complex task are presented here

Better Chemistry By Design
Simulation software helps to create higher-performance, safer and more-economical CPI plants

Thermal Integration of Reboilers
How to incorporate reboilers into composite curves, and more suggestions are given

Revamping Your Process Plant
An overview of some options to consider for increasing capacities

Absorber Optimization: Employing Process Simulation Software
Applying simulation-model case studies in the field yields significant savings with no capital investment

Distillation Column Thermal Optimization: Employing Simulation Software
Applying process simulation software in distillation column design and operational analysis can lead to significant reductions in operational and maintenance costs and improved column performance

Mega Columns, Mega Issues

New Horizons For Dividing Wall Columns
How to significantly expand the application window of DWCs, both as a new design to enhance potential benefits and as an energy saving retrofit option

Facts at Your Fingertips: Random Tower Packing

Facts at Your Fingertips: Distillation Tray Design

Plant Revamps and Turnarounds: Some Lessons Learned
Although time is always precious, taking shortcuts and skipping standard procedures can be costly

Facts at Your Fingertips: Distillation Column Modeling
Achieving Excellence in Energy Efficiency
Effective energy-management programs provide motivation for behavioral, technical and business changes that improve efficiency

Project Optimization Through Engineering
Follow these practical recommendations to reduce capital outlay and operating costs, deliver shorter schedules and improve design quality

Dry Tray Pressure Drop of Sieve Trays
A new correlation that matches most commercial trays

Distillation: Avoid Problems During Tower Startup 
Practical procedures for both effective startup and problem analysis are discussed here for a depropanizer that experienced downcomer seal loss

Fine Tune the Design of Sour-Water Strippers Using Rate-based Simulation
A look at the benefits of using simulations in the design of SWS units, and some practical tips on SWS operation

Mitigate Corrosion in Condensate-Return Systems
Understanding the chemistry behind corrosion in condensate-return systems can aid in selecting and properly employing the best mitigation technique

Distillation Optimization By Vap or Recompression
Vapor recompression offers an energy saving alternative to conventional distillation design

Determining Packing Height With Accuracy
Theoretical stages are useful for process design calculations, but transfer units bring much needed clarity to equipment selection and specification

A Window into Kettle Reboiler Secrets

The Science of Droplets

Reboiler Circuits for Trayed Columns