Darsa
Industrial Catalyst Recovery
The recovery of industrial catalysts is a fundamental process for the sustainable management of materials used in the production processes of numerous industrial sectors. Spent catalysts from chemical, petrochemical, energy, and pharmaceutical industries often contain precious and transition metals that can be recovered and valorized.
The valorization of spent industrial catalysts therefore represents a concrete solution for companies seeking to improve the sustainability of their production processes and optimize raw material management, making a significant contribution to the philosophy of urban mining.
We valorize industrial catalysts on ceramic or activated carbon supports containing precious and transition metals from the following chemical and petrochemical processes: hydrogenation/dehydrogenation, steam/hydrocarbon reforming, sulfide removal, methanation, hydrodesulfurization, formaldehyde production, fat-oil-fatty acid hydrogenation, CO conversion, hydrodenitrification, oxygen removal, combustion gas purification - denox.
We valorize industrial catalysts on ceramic or activated carbon supports containing precious and transition metals from the following chemical and petrochemical processes: hydrogenation/dehydrogenation, steam/hydrocarbon reforming, sulfide removal, methanation, hydrodesulfurization, formaldehyde production, fat-oil-fatty acid hydrogenation, CO conversion, hydrodenitrification, oxygen removal, combustion gas purification - denox.
Catalysts are present in the form of spheres, pellets, briquettes, powders, sludges and contain significant percentages of the following metal oxides:
1
Nickel
(NiO – NiMo – NiTi – Raney Nickel – NiCu – NiWMo);
2
Molybdenum
(Mo Fe – MoCo – MoCu);
3
Vanadium
(Vo -VniMo);
4
Cobalt
(CoO – CoMn);
5
Copper
(CuZn – CuCr);
6
Zinc
(ZnO);
7
Titanium
(TiO);
8
Tungsten
(Wni – WniMo – Wti);
9
Iron
(Feo)
We also process SCR catalyst modules for flue gas abatement, consisting of spent catalytic modules from NOx abatement systems (Selective Catalytic Reduction – SCR), made of honeycomb or plate ceramic supports (denox catalysts).