Exhaust Gas Purification Catalysts (Oxidation Catalysts, Deodorizing Catalysts, VOC Catalysts, Combustion Catalysts)
![[Exhaust Gas Purification Catalysts product image] Metal Honeycomb Catalysts, Pellet Catalysts](https://prod-cms-cache-bucket.s3-ap-northeast-1.amazonaws.com/wp-content/uploads/sites/images/ex/en/products/images/e01/img_intro_e01.jpg)
We offer high performance exhaust gas purification catalysts.
We offer metal honeycomb catalysts and pellet catalysts that oxidize and decompose exhaust gases such as volatile organic compounds (VOCs), which are harmful to the human body and the environment, into harmless water and carbon dioxide.
Metal Honeycomb Catalysts
■Features
- A honeycomb structure has been used to expand the surface area, enabling high catalyst reaction properties
- The thin honeycomb structure wall enables a high aperture ratio with little pressure drop
- The size can be more freely set than for ceramic honeycomb, with rectanglar, cylindrical, large and other shapes possible
- Metal honeycomb is stronger and easier to handle than ceramic honeycomb
![[Features of Metal Honeycomb Catalyst] 50µm thick Stainless steel foil is evenly coated with a high-performance oxidation catalyst / Catalyst structure with even and highly dispersed nano-sized Pt particles](https://prod-cms-cache-bucket.s3-ap-northeast-1.amazonaws.com/wp-content/uploads/sites/images/ex/en/products/images/e01/img_block01_01.jpg)
■Shape
![[Shapes of Metal Honeycomb Catalyst] Rectangular shape, Cylindical shpe, Toroidal shape](https://prod-cms-cache-bucket.s3-ap-northeast-1.amazonaws.com/wp-content/uploads/sites/images/ex/en/products/images/e01/img_block01_02.jpg)
■Size (example)
| Shape | Catalyst size (example) (mm) |
Catalyst volume (ml) |
Gas flow rate (Reference) (NL/min) |
|---|---|---|---|
| Rectangular shape | 100×100×50 | 500 | 250~500 |
| 150×150×50 | 1125 | 563~1125 | |
| 150×150×75 | 1688 | 844~1688 | |
| 200×200×75 | 3000 | 1500~3000 | |
| 588×438×25 | 6439 | 3220~6439 | |
| Cylindrical shape | Φ56×50 | 123 | 62~123 |
| Φ109×50 | 467 | 234~467 | |
| Φ158.5×50 | 987 | 494~987 | |
| Φ158.5×75 | 1480 | 740~1480 | |
| Φ309.5×50 | 3762 | 1881~3762 |
Various sizes are available from small to large mainly in rectanglar or cylindrical shapes
■Cell density

| CPSI (Cell/in2) |
100 | 150 | 200 | 260 (Standard) |
300 (Standard) |
400 (Standard) |
500 |
| Pitch/ height(㎜) |
6.6/1.90 | 5.2/1.60 | 4.0/1.60 | 3.2/1.50 | 3.2/1.30 | 3.2/0.96 | 3.2/0.75 |
| Exterior appearance | ![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
Cell density can be controlled, enabling the proposal of designs meet the required pressure drop and catalyst performance
■Basic features
Click each item to view data showing characteristics.
- Examples of cell density and catalyst purification features (achieved VOC removal efficiency)
- Relationship between cell density and pressure drop value
- Example of SV and achieved VOC removal efficiency
- Example of precious metal content and catalyst activity

■Purification features by exhaust gas component (example)
Click each constituent to view removal performance data.
| Component name | Type |
|---|---|
| Acetaldehyde | Aldehyde |
| Acetic acid | Carboxylic acid |
| Acetone | Ketone |
| Acetonitrile | Nitrile |
| Acrolein | Aldehyde |
| Acrylic acid | Carboxylic acid |
| Acrylic nitrile | Nitrile |
| Ammonia | Amine |
| Benzene | Aromatic hydrocarbon |
| Butanol | Alcohol |
| Butyl acetate | Ester |
| Butyl acrylate | Ester |
| Butylaldehyde | Aldehyde |
| Butyl methacrylate | Ester |
| Carbon monoxide | Carbon monoxide |
| Cresol | Phenol |
| Cumene | Aromatic hydrocarbon |
| Cyclohexane | Cycloalkane |
| Cyclohexanone | Ketone |
| Decahydronaphthalene | Cycloalkane |
| Dimethylacetamide | Amide |
| Dimethyl ether | Ether |
| Dimethylformamide | Amide |
| Ethane | Alkane |
| Ethanol | Alcohol |
| Ethyl acetate | Ester |
| Ethyl acrylate | Ester |
| Ethylbenzene | Aromatic hydrocarbon |
| Component name | Type |
|---|---|
| Ethylene | Alkene |
| Ethylene glycol monobutyl ether | Ether/alcohol |
| Ethylene oxide | Ether |
| Formaldehyde | Aldehyde |
| Formic acid | Carboxylic acid |
| Hexane | Alkane |
| Hydrogen | Hydrogen |
| Hydrogen peroxide | Peroxide |
| Isopropyl alcohol (IPA) | Alcohol |
| Methane | Alkane |
| Methane (+H2O) | Alkane |
| Methanol | Alcohol |
| Methoxypropanol | Alcohol/ether |
| Methylcyclohexane | Cycloalkane |
| Methyl ethyl ketone (MEK) | Ketone |
| Methyl isobutyl ketone (MIBK) | Ketone |
| Methyl methacrylate | Ester |
| Phenol | Phenol |
| Propane | Alkane |
| Propionaldehyde | Aldehyde |
| Propylene | Alkene |
| Styrene | Aromatic hydrocarbon |
| Terpineol | Alcohol |
| Tetrahydrofuran | Ether |
| Toluene | Aromatic hydrocarbon |
| Trimethylamine | Amine |
| Xylene | Aromatic hydrocarbon |
Please contact us regarding other exhaust gas components.
- For information regarding metal honeycomb catalysts, also refer to Products and Solutions: Exhaust Gas Purification Catalysts by TANAKA
Pellet Catalysts
■Features
- We standardly use pellets with a spherical diameter of
Φ3 mm to Φ5 mm - Our standard lineup includes highly active Pt and Pd catalysts
- Low cost and high performance

■Main catalyst types
| Product name | Precious metals | Content (wt%) | Particle size (㎜) |
|---|---|---|---|
| TOC30-2.0I | Pt | 0.28 | Approx.φ2-4㎜ |
| TOC30-2.0I1 | 0.28 | ||
| TOC30A-2.0I1 | 0.27 | ||
| TOC30-2.0I | Pd | 0.28 | |
| TOC20-2.0I1 | 0.28 | ||
| TOC20A-2.0I1 | 0.27 |

We offer consultations regarding the trial manufacture and contract of catalysts that have been customized in accordance with customer needs (Pt content changes, Pd content, etc.).
■Exhaust gas purification features
Carbon monoxide

Note: Second initial measurement results for elevated temperature testing
This is approximate data as results are affected by factors such as catalyst evaluation conditions, manufacturing conditions and usage environment.
Hydrogen

Note: First initial measurement results for elevated temperature testing
This is approximate data as results are affected by factors such as catalyst evaluation conditions, manufacturing conditions and usage environment.
Methanol

Note: Third initial measurement results for elevated temperature testing
This is approximate data as results are affected by factors such as catalyst evaluation conditions, manufacturing conditions and usage environment.
Toluene

Note: Third initial measurement results for elevated temperature testing
This is approximate data as results are affected by factors such as catalyst evaluation conditions, manufacturing conditions and usage environment.
Please contact us regarding other exhaust gas components.






