DWCI awarded project for upgrading isomerization unit to produce food grade hexane

A first-of-its-kind Dual Dividing Wall Column revamp will let a Southeast Asian refinery produce four product streams — including food/polymer grade hexane — from a single Deisohexanizer shell.

DWC Innovations has been awarded a revamp project at a major Southeast Asian refinery to upgrade its C5/C6 Isomerization Unit and enable the production of an additional Food/Polymer Grade Hexane product stream.

This first-of-its-kind advanced distillation project will utilize Dual Dividing Wall Column (DDWC) technology to produce four distinct product streams within the refinery’s existing Deisohexanizer column. By incorporating DDWC technology, the revamped column will consolidate the functionality of four conventional distillation columns into a single column shell, significantly improving process efficiency and asset utilization. The innovative retrofit allows the refinery to expand its product slate while minimizing capital investment and maintaining the existing column infrastructure.

• Basic Engineering Package (BEP) for Ben Prime™ Technology
• Basic Engineering Package (BEP) for Dual DWC Prime™ Technology
• Process design and integration support for the Deisohexanizer column revamp
• Supply of proprietary technology and engineering expertise

• Production of an additional high-value Food/Polymer Grade Hexane product
• Generation of four product streams from a single column shell
• Replacement of the functionality of four conventional columns with one DDWC-equipped column
• Reduced energy consumption and operating costs
• Improved asset utilization and process flexibility
• Enhanced refinery profitability through increased product value and operational efficiency

This award highlights DWC Innovations’ leadership in advanced distillation technologies and demonstrates the growing adoption of Dual Dividing Wall Column solutions for refinery modernization, capacity enhancement, and specialty product production.