Unlock more value from your refinery assets.
Increase capacity, recover higher-value products, cut energy and avoid costly revamps — with dividing wall column technology, process optimization and practical engineering that reduce CAPEX and OPEX by 20–50%.
We reinvented the Dividing Wall Column — and made it work at scale.
DWC Innovations is a recognized global leader in Dividing Wall Column technology — licensing, process design and engineering for refiners and petrochemical producers worldwide, from our headquarters in Houston, Texas.
We specialize in revamps that remove bottlenecks and expand capacity inside the columns you already own.
Solutions that improve refinery profitability
Proprietary technologies, process optimization and full engineering delivery — helping refineries earn more from the assets they already have.
DWC Prime & Dual DWC Prime
Increase capacity with less equipment. Single- and multi-wall dividing wall columns — including TDWC and BDWC Prime — that replace two-column sequences, sidecut columns and indirect trains.
Octane Booster
Recover more value from isomerization units. Boost octane and throughput of light-naphtha (C5–C6) isomerization without new columns — a DWC Prime retrofit of the existing deisohexanizer.
Food Grade Hexane
Create new products from existing assets. Revamp the deisohexanizer to produce a valuable 4th cut — food-grade, polymer-grade or isohexane — raising isom-unit capacity by 20%+.
Benzene Saturation
Meet benzene specifications cost-effectively. Ben Prime manages benzene in the gasoline pool with a cost-effective saturation solution that meets stringent regulatory requirements.
Hydrotreating Solutions
Increase hydrotreater capacity without major expansion. New units, revamps, catalyst optimization and DWC Prime™ pre-treatment that reduce project cost and scope.
Refinery Process Optimization
Solve column problems before buying equipment. Troubleshooting, debottlenecking, heat-pump and multi-effect distillation that save 20–50% in CAPEX and OPEX. Distillation troubleshooting.
Engineering & optimization services
Many projects begin with a study, not a technology choice. Team DWC covers refinery debottlenecking and distillation optimization, process simulation and feasibility studies, then takes you through design, procurement, fabrication and commissioning.
Why refiners choose DWC Innovations
A Houston-based process engineering team that combines deep refinery, petrochemical and distillation experience with proprietary separation technologies commercialized around the world.
25+ DWCsProven in commercial operation
Not simulation, not theory: dividing wall columns running at operating plants worldwide.
World firstsSeparation technologies that lead
The first commercial multi-wall DWC and the first multi-column DWC network.
Lowest cost firstOptimization before capital spending
We find the real bottleneck before recommending any equipment.
One teamEnd-to-end delivery
Licensing, engineering and commissioning support, from feasibility through start-up.
2–12 monthsFast payback
Typical revamp payback on dividing wall column projects.
ProprietaryOur own technology portfolio
DWC Prime™, Dual DWC Prime™ and Ben Prime™, backed by commercial refinery references.
Results on real units
- Single column, multi-cut separationThree or more high-purity product streams from a single shell.
- Major capacity upliftRevamp side-cut columns without adding new equipment.
- Sharper separations, higher valueUpgrade low-value streams into premium products.
- 50% lower footprint & energyFewer columns, less plot space, minimal external changes.
- 20–50% lower CAPEX & OPEXFast payback with proven commercial performance.
- Debottlenecks downstream unitsSupports Isomerization, CCR, PX and Aromatics Recovery.
Multi-wall Dividing Wall Column at BPCL Mumbai
The world’s first commercial application of a Dividing Wall Column with multiple walls — engineered, licensed and commissioned by DWC Innovations.
Commercial milestones refiners can build on
We don’t just license technology — we take projects through successful commissioning at some of the most demanding refineries in the world.
World’s first multi-column DWC network commissioned
World’s first multi-column DWC Prime network commissioned in India, replacing seven conventional columns with four high-efficiency DWC units.
Pharma-grade hexane via Dual DWC deisohexanizer
Dual dividing-wall deisohexanizer producing pharma-grade hexane in the isomerization unit — with a 20% unit-capacity increase.
Turnkey dual DWC revamp for optimized naphtha separation
Turnkey revamp with dual DWC delivered sharper three-cut naphtha separation, stable control and unchanged reboiler duty.
What does the energy saving weigh in carbon?
Put in the reboiler duties you run today. See the CO₂e a dividing wall avoids each year, what that saving is worth, and how it measures against a whole refinery.
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Reboiler duty, two columns → one
The wall removes the remixing between the two columns — that recovered 19.2 MMkcal/h is 92,494 t CO₂e a year.
Carbon screening
What does the energy saving weigh in carbon?
Put in the reboiler duties you run today. See the CO₂e a dividing wall avoids each year, what that saving is worth, and how it measures against a whole refinery.
Latest news & insights
Commissioning news, whitepapers and journal articles on dividing wall column technology.
A network of dividing wall columns for whole-train process intensification
Four DWC Prime columns in place of a seven-column train — the design problem and the results in operation.
World’s first multi-column DWC network commissioned
A full distillation train replaced by a network of dividing wall columns at an Indian chemical complex.
Naphtha splitter revamped to a Dual DWC at MRPL
Sharper light, medium and heavy naphtha cuts with no change in reboiler duty — turnkey, feasibility to start-up.
Have a separation challenge?
Whether you need more capacity, lower energy, better product purity or a new process configuration, our engineers will find the most economical solution — with typical revamp payback in 2–12 months.