---
title: Commercial Bulletin - HR 638 Recycled Catalyst Naphtha Hydrotreatment
description: HR 638 is a newly-developed premium NiMo catalyst for naphtha hydrotreaters with unmatched characteristics that address the new challenges in modern naphtha hydrotreatment.
image: https://resources.axens.net/hubfs/Landing%20Pages/Resources/Commercial%20Bulletin/Thumbnails%20CB/Thump_Axens_CB_HR638_2024_1.png
---

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 Commercial Bulletin

# HR 638

## Recycled Catalysts for Naphtha Hydrotreatment Applications

![Thump_Axens_CB_HR638_2024_1](https://resources.axens.net/hubfs/Landing%20Pages/Resources/Commercial%20Bulletin/Thumbnails%20CB/Thump_Axens_CB_HR638_2024_1.png)

HR 638 is a newly-developed premium NiMo catalyst for naphtha hydrotreaters with unmatched characteristics that address the new challenges in modern naphtha hydrotreatment.

 

 

 

 

 

 Thanks to HR 638's unique combination of high activity and stability, its low CO₂ footprint and cost-effective life cycle, along with maximum safety, operators who have loaded this new catalyst have overwhelmingly expressed their satisfaction with it. 

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