Industrial Adsorbents & Catalysts Blog

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2026-08-05

Comprehensive Guide to Mercury Removal Catalysts: Preventing Liquid Metal Embrittlement and CuS Chemisorption Guard Bed Operations

Trace elemental mercury in natural gas and liquid hydrocarbon streams causes catastrophic Liquid Metal Embrittlement (LME) in aluminum heat exchangers and irreversibly poisons noble metal catalysts. This technical guide unpacks the working mechanism of CuS/Al₂O₃ mercury removal catalysts, examining chemisorption kinetics, gas vs. liquid phase engineering, and safe guard bed operation to achieve rigorous sub-0.01 µg/m³ outlet purity.

A Comprehensive Guide to Methanation Catalysts: Reaction Mechanisms, Thermal Runaway, and Ammonia Synthesis Guard Bed Operation

Technical & Troubleshooting Guides

2026-08-05

A Comprehensive Guide to Methanation Catalysts: Reaction Mechanisms, Thermal Runaway, and Ammonia Synthesis Guard Bed Operation

Trace carbon monoxide (CO) and carbon dioxide (CO2) in synthesis gas act as lethal poisons to downstream ammonia and hydrogen catalysts. This technical guide explores the fundamental chemistry of nickel-based methanation catalysts, sulfur poisoning mechanisms, thermal runaway prevention, and guard bed engineering strategies to achieve sub-10 ppm carbon oxide purity.

What Is a Low Temperature Shift Catalyst? Cu-Zn-Al CO Polishing Explained

Product Guides

2026-08-04

What Is a Low Temperature Shift Catalyst? Cu-Zn-Al CO Polishing Explained

A practical guide to how Cu-Zn-Al low temperature shift catalysts work, why sulfur protection is critical, and how LTS completes a two-stage shift train.

What Is a High-Temperature Shift Catalyst? Fe-Cr Water-Gas Shift Explained

Product Guides

2026-08-04

What Is a High-Temperature Shift Catalyst? Fe-Cr Water-Gas Shift Explained

A practical guide to how Fe-Cr high-temperature shift catalysts work, why they're built the way they are, and how HTS fits alongside LTS in a complete shift train.

What Is a Propylene Purification Adsorbent?

Product Guides

2026-08-03

What Is a Propylene Purification Adsorbent?

A guide to how CuO-ZnO adsorbents remove CO and trace contaminants from polymer-grade propylene, why polymerization catalysts need this protection, and where this guard bed fits in a typical purification train.

What Is an Ethylene Purification Adsorbent?

Product Guides

2026-08-03

What Is an Ethylene Purification Adsorbent?

A guide to how CuO-ZnO adsorbents remove CO and trace contaminants from polymer-grade ethylene, why polymerization catalysts need this protection, and where this guard bed fits in a typical purification train.

What Is a CD Adsorbent? Oxygenate & Water Removal Explained

Product Guides

2026-07-31

What Is a CD Adsorbent? Oxygenate & Water Removal Explained

How activated alumina protects the carbon molecular sieve bed in a PSA nitrogen generation train — bulk moisture removal upstream of precision gas separation.

What Is a COS Adsorbent? COS, CS2 & H2S Removal Explained

Product Guides

2026-07-31

What Is a COS Adsorbent? COS, CS2 & H2S Removal Explained

A COS adsorbent removes COS, CS2, and H2S from cracked C2–C4 olefin streams, protecting polymerization catalysts. Learn how it works and where it fits in the purification train.

What Is a Dechlorination Catalyst? HCl Removal Explained

Product Guides

2026-07-30

What Is a Dechlorination Catalyst? HCl Removal Explained

Trace hydrogen chloride (HCl) and organochlorides threaten Continuous Catalytic Reforming, Isomerization, PDH, and Syngas purification units. This guide explains dechlorination catalyst chemistry, green oil control, and guard bed operation practices.

How to Choose a Desulfurization Catalyst: A Buyer's Selection Guide

Product Guides

2026-07-29

How to Choose a Desulfurization Catalyst: A Buyer's Selection Guide

With seven different desulfurization catalysts in play — each suited to a different feed condition or protection target — picking the right one comes down to a handful of questions about your process. This guide walks through the decision framework.

What Is a Cu-Ni Desulfurization Catalyst? Dual-Metal Guard Bed Technology Explained

Product Guides

2026-07-29

What Is a Cu-Ni Desulfurization Catalyst? Dual-Metal Guard Bed Technology Explained

A plain-language guide to copper-nickel (Cu-Ni) desulfurization catalysts: how the dual-metal mechanism works, why pre-reduced supply matters for commissioning time, and how to choose between a Cu-Ni system and a single-metal guard bed.

What Is an Ultra-Precision Desulfurization Catalyst? Bifunctional COS Hydrolysis Explained

Product Guides

2026-07-28

What Is an Ultra-Precision Desulfurization Catalyst? Bifunctional COS Hydrolysis Explained

A plain-language guide to how bifunctional ultra-precision desulfurization catalysts combine COS hydrolysis and H₂S adsorption in one reactor bed — and when this one-step approach makes more sense than conventional two-stage ZnO desulfurization.