Catalyst Re-Impregnation
DOES YOUR CATALYST NEED A NEW LIFE ?
Seqens’ diverse assets include plants with the capability improve the strength and re-impregnate silica hydrogels and cogels, zeolites and other catalysts supports.
Seqens can:
- Wash the silica and other catalyst supports with aqueous or organic solutions
- Add active metal precursors via incipient wetness impregnation
- Dry with hot air/ nitrogen or with a double cone drier.
Incipient wetness impregnation, is a commonly used technique for the synthesis of heterogeneous catalysts. Typically, the active metal precursor is dissolved in an aqueous or organic solution. Then the metal-containing solution is added to a catalyst support containing the same pore volume as the volume of the solution that was added. Capillary action draws the solution into the pores. Solution added in excess of the support pore volume causes the solution transport to change from a capillary action process to a diffusion process, which is much slower. The catalyst can then be dried and calcined to drive off the volatile components within the solution, depositing the metal on the catalyst surface. The maximum loading is limited by the solubility of the precursor in the solution. The concentration profile of the impregnated compound depends on the mass transfer conditions within the pores during impregnation and drying.
Our Expertise
Seqens Custom Specialties has many years of experience of catalyst regeneration and our experts can help determine if our process equipment is appropriate for your project. To learn more contact us and ask about our development capabilities which allow us to test your requirements on a small scale prior to production.
Our locations
Custom Specialties Middlesbrough
United KingdomTS3 6AF Middlesbrough
Surface: 68, 000 m²
Capabilities:
- 48 plate distillation column
- 18 plate distillation column
- 4 reaction vessels (316 L and Duplex 2205) of 25-30m³ capacity with distillation columns attached (6-30 plates)
Flagship technologies:
Primary Reactions
- Esterification
- Etherification
- Epoxidation
- Methylation/Methyl chloride capping
- Quaternisation
- Transeterification
Secondary reactions
- Acetal formation
- Acetylation
- Aldol condensation
- Alkylation
- Diels-Alder
- Hydrolysis
- Isomerisation
- Oxidation
- Polymerisation
Solvent Recovery
- Alcohols
- Amines
- Aromatic solvents
- Esters
- Glycols
- Ketones
- Organic acids
Certifications:
- ISO 9001
- ISO 14001
Packaging: Drumming and IBC filling facility
Custom Specialties Billingham
United KingdomTS23 1PY Billingham
Surface: 42, 000 m²
Capabilities:
- 4 reaction vessels (316 L and Duplex 2205) of 25-35 m³ capacity with associated distillation columns of 6-30 plates
- Glass lined reaction vessel (14 m³)
Flagship technologies:
Primary Reactions
- Esterification
- Epoxidation
- Methylation/Methyl chloride capping
- Quaternisation
- Transeterification
Secondary reactions
- Acetal formation
- Acetylation
- Aldol condensation
- Alkylation
- Diels-Alder
- Hydrolysis
- Isomerisation
- Oxidation
- Polymerisation
Solvent Recovery
- Alcohols
- Amines
- Aromatic solvents
- Esters
- Glycols
- Ketones
- Organic acids
Certifications:
- ISO 9001
- ISO 14001
Packaging: Drumming and IBC filling facility