Lower Capital Cost
Reduce your investment with MaxFlux’s efficient design
Lower Operating Expense
Save on catalyst and energy costs with an optimized operation
Lower Carbon footprint
Optimized hydrogen consumption for a more beneficial environmental footprint
MaxFlux™ Hydrotreating technology
With the increased demand of sustainable products, the industry is changing their feedstocks from fossil towards renewable feedstocks. Pyrolysis oils from plastic waste can be a viable alternative once these oils have been upgraded. Sulzer Chemtech, in cooperation with Duke Technologies, offers MaxFlux technology, a unique liquid full hydrotreating technology to produce pyrolysis oil with naptha like properties
Main benefits
Lower Capital and Operating Costs: Reduces capital and operating expenses versus traditional hydrotreating
Higher Yields and Product Quality: Improved mixing boosts valuable product output and quality
Extended Catalyst Life: Stable operation and less coking extend catalyst lifespan
Key characteristics
High Liquid Flux Operation: Hydrogen is dissolved in liquid for fast, efficient impurity removal
Improved thermal management: Reaction heat dissolved in pool of liquid reducing coke formation and hot spots
No need for HP gas equipment
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Case Study
Redefining the economics of chemical recycling
4 pages
White Paper
Upgrade pyrolysis oil
8 pages
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Case Study
4 pages
MaxFlux™ Redefining the economics of
chemical recycling
Overview
Discover how MaxFlux boosts chemical recycling by refining crude pyrolysis oil from mixed polyolefin waste into valuable, cracker‑ready material, addressing the major quality and cost challenges slowing circular plastics.
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Latest posts
MaxFlux is an advanced hydrotreating process designed to efficiently upgrade plastic pyrolysis oil (PPO) by removing impurities and delivering ultra-clean products suitable for petrochemical and fuel applications.
Unlike conventional trickle-bed reactors, MaxFlux operates with high liquid flux, dissolving hydrogen directly in the liquid phase and eliminating the need for a large hydrogen gas recycle loop. This results in better mixing, improved impurity removal, and lower energy use.
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Lower capital and operating costs
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Higher yields of valuable products
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Ultra-low contaminant levels (<1 ppmw for key impurities)
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Longer catalyst life due to reduced coking and better temperature control
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MaxFlux effectively reduces nitrogen, sulfur, silicon, chlorine, oxygen, and metals to below 1 ppmw, meeting even the strictest steam cracker feed requirements.
Yes, MaxFlux is flexible and can be used for both new installations and as a revamp or pretreatment solution for existing hydrotreaters.
