Hydrogenation-catalysts
Hydrogenation catalysts
Johnson Matthey offers a range of hydrogenation catalysts through its HTC™, PRICAT™ and SPONGE METAL™ catalyst brands.
Using both precious and base metals, the application of these catalysts for biorenewables, petrochemical and oleochemical manufacture include:
- Full and selective aldehyde hydrogenation for oxo-alcohol production
- Olefin purification through selective hydrogenation
- acetylene removal from ethylene
- methyl acetylene / propadiene removal from propylene
- C4 upgrading
- C5 processing
- Pygas stabilisation - removal of dienes and reactive olefins
- Liquid phase slurry hydrogenation of nitrobenzene to aniline
- Removal of aromatic and olefinic species from solvent streams
- Acetone and phenol hydrogenation plus polishing duties and adiponitrile hydrogenation in caprolactam manufacture
- Upgrading of biorenewables
- Hydrogenation of anthraquinone in hydrogen peroxide production
- Nitrile hydrogenation for specialty amines
- Fluorochemical manufacture
- Fats and oils production
- Selective hydrogenation for fatty acids in oleochemicals
- Polyol production.
Johnson Matthey also offers a variety of different dehydrogenation catalysts for different
markets, including the manufacture of caprolactam and olefins.
C4 upgrading and C5 processing
C4 acetylene hydrogenation catalysts
The raw C4 cut from steam cracking contains between 35% and 70% butadiene. This cut also contains up to 1.5% vinyl acetylene and 0.7% ethyl acetylene. The modern specification for combined C4 acetylenes in butadiene product is less than 10 ppm. Considerable efficiencies are available by converting vinyl acetylene to butadiene and ethyl acetylene to 1-butene instead of downgrading to fuel.We have formulated PRICAT™ PD 468 to ensure high C4 acetylene conversion whilst minimising butadiene hydrogenation and green oil formation.PRICAT PD 468 is available as part of our range of catalysts for olefin processes.
C4 selective hydrogenation catalysts
The butylene's yield from liquids cracking can be doubled by selective hydrogenation of co-produced acetylenes and butadiene to butylene.We have a range of PRICAT™ PD catalysts for effective selective hydrogenation of acetylenes and butadienes to butylenes. Offering both promoted and unpromoted products, we have catalysts for high LHSV situations as well as products designed to minimise butylene hydrogenation.
C5 selective hydrogenation catalysts
Steam cracking can produce pentenes at over 130 kg per MT of ethylene produced from liquids cracking, depending upon cracking severity and feedstock. After the first stage of pyrolysis gasoline processing, the pentenes rich distillate may contain up to 1% dienes which must be reduced to 100 ppm or less via selective hydrogenation for most downstream processes.
We offer a range of high quality palladium and nickel based catalysts to achieve this conversion. We offer versatile palladium catalysts as well as those tailored for high LHSV situations. Our product range also includes robust catalysts designed to deal with high sulphur and contaminated feeds. Please contact us for more information on our product range.
