Catalyst company

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There isn't a scientifically fixed number of catalyst types—catalysts can be classified by phase, mechanism, material, and application. Here are 100 catalyst categories/examples:

Chemical & industrial catalysts

1. Homogeneous catalysts


2. Heterogeneous catalysts


3. Enzyme catalysts


4. Organocatalysts


5. Acid catalysts


6. Base catalysts


7. Redox catalysts


8. Photocatalysts


9. Electrocatalysts


10. Biocatalysts


11. Metal catalysts


12. Metal-oxide catalysts


13. Sulfide catalysts


14. Nitride catalysts


15. Carbide catalysts


16. Zeolite catalysts


17. Molecular-sieve catalysts


18. Supported catalysts


19. Bimetallic catalysts


20. Multimetallic catalysts



Common metal catalysts

21. Platinum catalysts


22. Palladium catalysts


23. Rhodium catalysts


24. Ruthenium catalysts


25. Iridium catalysts


26. Nickel catalysts


27. Cobalt catalysts


28. Iron catalysts


29. Copper catalysts


30. Silver catalysts


31. Gold catalysts


32. Molybdenum catalysts


33. Tungsten catalysts


34. Vanadium catalysts


35. Titanium catalysts


36. Zinc catalysts


37. Chromium catalysts


38. Manganese catalysts


39. Cerium catalysts


40. Lanthanide catalysts



Petroleum & fuel catalysts

41. Fluid catalytic cracking (FCC) catalysts


42. Hydrocracking catalysts


43. Hydrotreating catalysts


44. Hydrodesulfurization catalysts


45. Hydrodenitrogenation catalysts


46. Reforming catalysts


47. Isomerization catalysts


48. Alkylation catalysts


49. Hydrogenation catalysts


50. Dehydrogenation catalysts


51. Fischer–Tropsch catalysts


52. Methanation catalysts


53. Methanol-synthesis catalysts


54. Syngas-conversion catalysts


55. CO-shift catalysts


56. Steam-reforming catalysts


57. Partial-oxidation catalysts


58. Fuel-cell catalysts


59. Biodiesel-transesterification catalysts


60. Biomass-conversion catalysts



Automotive catalysts

61. Three-way catalytic converters


62. Diesel oxidation catalysts


63. Diesel particulate-filter catalysts


64. Selective catalytic reduction (SCR) catalysts


65. Lean-NOx trap catalysts


66. NOx oxidation catalysts


67. CO-oxidation catalysts


68. Hydrocarbon-oxidation catalysts


69. Exhaust-gas catalysts


70. Methane-oxidation catalysts



Environmental catalysts

71. Air-pollution catalysts


72. VOC-oxidation catalysts


73. Ozone-decomposition catalysts


74. Wastewater catalysts


75. Advanced-oxidation catalysts


76. Photocatalytic water-treatment catalysts


77. Nitrogen-removal catalysts


78. Sulfur-removal catalysts


79. CO₂-conversion catalysts


80. Environmental remediation catalysts



Biological & pharmaceutical

81. Protease enzymes


82. Amylase enzymes


83. Lipase enzymes


84. Oxidase enzymes


85. Reductase enzymes


86. Transferase enzymes


87. Hydrolase enzymes


88. Isomerase enzymes


89. Lyase enzymes


90. Ligase enzymes



Advanced/emerging catalysts

91. Nanoparticle catalysts


92. Single-atom catalysts


93. Metal–organic-framework (MOF) catalysts


94. Covalent-organic-framework (COF) catalysts


95. Carbon-based catalysts


96. Graphene-based catalysts


97. Quantum-dot photocatalysts


98. Plasmonic catalysts


99. Mechanocatalysts


100. Artificial-enzyme catalysts



Important: some items above are broad categories, while others are specific catalyst technologies or catalyst families. They aren't 100 completely independent chemical types.

For your automotive-additives business, the most relevant distinction is that fuel additives are not necessarily catalysts. An octane booster, injector cleaner, or detergent additive can modify fuel properties or clean the fuel system without being a catalyst. A catalytic converter, by contrast, uses catalysts to accelerate exhaust reactions.

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