Guard Bed Catalysts (pre-treaters)
Ahead of other catalyst companies, we have established a guard bed technology to protect catalyst from catalyst poisons. It is required to install guard bed catalysts upstream of the catalyst bed to capture and destroy poisons, and by the same time extend the catalyst life.
We have three different shapes of guard bed catalysts listed below.

List of Guard bed catalysts
Type | NA series | NB series | NC series |
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Shape | Sphere | Foamed ceramic | Honeycomb monolith |
Standard size | Φ2.5~4 mm Φ4~6 mm |
580×430×40t mm 580×430×t60t mm |
150×150×t50t mm 190×140×t40t mm 190×140×t50t mm |
Recommended Inlet temp. | > 320 ℃ | > 320 ℃ | > 320 ℃ |
For inquiries:
Department | Environmental Catalyst Div. |
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Contact Form | |
TEL | ARIOKA:+81-90-5398-5199 (Japanese, English) PIET:+81-80-4462-6530 (French, English) *Do not hesitate to reach out to us by using the contact form, we will come back to you as soon as possible. |