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StyroMax Rib-Shaped Catalysts

Reactor pressure is critical in styrene production, as elevated pressures increase by-product formation. Extreme pressures may also impact the performance of the evaporating systems. 

The solution: Clariant's StyroMax rib-shaped catalysts’ unique design reduces pressure drop by 30 to 50% compared to standard cylindrical shapes at similar operating conditions.

Going with the Flow

StyroMax rib-shaped catalysts have a cylindrical core supported by five ribs that create five channels and strengthen the catalyst pellet. The unique geometry prevents the ribs from fitting into the channels.

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The higher void fraction of the rib extrusions lowers pressure resistance during operation.

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The channels improve flow distribution, enabling more uniform profiles in the reactor.

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Reduced overall pressures greatly benefit the thermodynamics of ethylbenzene dehydrogenation.

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The shape’s high surface area increases catalyst activity, since the reaction rate is mass-transfer controlled.

Lower Pressure Drop

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  • Proven technology, in commercial operation for more than 30 years

  • Excellent flow distribution throughout loaded beds

  • Higher activity due to greater catalyst surface area

  • Less by-product formation due to favorable pressure conditions

  • Improved performance, stability, and tolerance to operational upsets

  • Available for all StyroMax series catalysts

Unique Performance Benefits

ROBUST CATALYST


> 25%


higher mechanical strength
protects catalyst during loading
and operation
ADDITIONAL PROTECTION


> 15%


lower loaded weight
reduces mechanical stress in reactor
and prevents screen damage
SMOOTH OPERATION


> 50%


lower pressure drop
during full cycle favors dehydrogenation
and prevents by-products

Solutions that Drive Performance

Styrene Catalysts
Customer Events
Join our seminars, webinars, and workshops to learn about the latest trends and most innovative styrene solutions
Styrene Catalysts
Technical Services
Let our experts help you raise daily production rates, increase yields, extend cycle length, and reduce steam and energy consumption
Styrene Catalysts
Styrene Production Overview
Explore our high-performance catalysts for more economical and sustainable styrene production
Styrene Catalysts
StyroMax Catalyst Portfolio
Select the right StyroMax catalyst from our broad portfolio to boost your styrene unit's profitability

News

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Clariant Catalysts has teamed up with Evonik and thyssenkrupp Industrial Solutions (tkIS) in a major propylene oxide project for one of China’s largest rubber producers. Qixiang Tengda is one of the leading global producers of carbon-four chemical products, such as methyl ethyl ketone and maleic anhydride. Expanding into the carbon-three value chain, the company’s new propylene oxide plant in Zibo city, Shandong province, relies on Evonik-tkIS HPPO technology to convert propylene in the presence of hydrogen peroxide (HP) directly into propylene oxide (PO). The plant will have an annual production capacity of 300,000 tons. more
October 20, 2022
Clariant unveils portfolio for purifying pyrolysis oil derived from mixed plastic waste
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Driven by its vision to enable a circular economy, Clariant launched an innovative portfolio of flexible, custom solutions for the emerging market of chemical plastics recycling. more
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