Français
Deutsch
Italiano
Русский
Español
Português
Nederlandse
Ελληνικά
日本語
한국
العربية
Türkçe
Indonesia
Tiếng Việt
ไทย
বাংলা
فارسی
Polski
Horizontal Crude Oil Refinery Machine
,Continuous Crude Oil Refinery Machine
,Horizontal refined oil manufacturing machine
The Decanter Centrifuge for Catalyst Slurry Recovery is designed for continuous solid-liquid separation, catalyst recovery, slurry thickening, and process-liquid clarification.
It is suitable for chemical, petrochemical, pharmaceutical, fine chemical, and hydrogenation processes. The centrifuge separates catalyst particles, reaction residues, carbon fines, metal-containing solids, and suspended impurities from water-based or compatible solvent-based liquids.
Gas-tight construction, nitrogen protection, explosion-proof components, corrosion-resistant materials, and wear protection can be provided according to the process conditions.
- Spent catalyst recovery
- Hydrogenation catalyst separation
- Precious-metal catalyst recovery
- Nickel catalyst slurry treatment
- Palladium catalyst recovery
- Activated carbon and catalyst separation
- Petrochemical catalyst fines recovery
- Reaction slurry clarification
- Filter press feed thickening
- Catalyst washing and liquid recovery
- Process-solvent recovery
- Chemical wastewater pretreatment
| Process Requirement | Decanter Centrifuge Solution |
|---|---|
| Continuous catalyst recovery | Continuous feeding and solids discharge |
| Valuable catalyst loss reduction | High-force solid-liquid separation |
| Variable slurry concentration | Adjustable bowl and differential speed |
| Fine catalyst particles | High-G configuration and optional dosing |
| Process-liquid recovery | Clarified liquid for reuse or treatment |
| Closed hazardous process | Gas-tight and nitrogen-protected design |
| Corrosive liquid | Customized wetted materials and seals |
| Lower filtration load | Pre-thickening before filter press or dryer |
| Automatic operation | PLC and VFD-controlled continuous running |
Catalyst Slurry Recovery Solution
Peony provides continuous separation solutions for catalyst recovery, reaction-liquid clarification, slurry thickening, and process-liquid recycling.
Reaction Vessel / Catalyst Washing / Regeneration Process
→ Agitated Slurry Tank
→ Optional Conditioning or Flocculant Dosing
→ Decanter Centrifuge
→ Thickened Catalyst Solids
→ Filter Press / Dryer / Regeneration / Metal Recovery / Disposal
Clarified Liquid
→ Process-Liquid Tank
→ Recycle / Polishing Filtration / Further Treatment
Peony Can Provide
- Catalyst slurry testing and centrifuge selection
- Agitated slurry buffer tank
- Controlled feed pump
- Optional dilution and dosing system
- Adjustable bowl and differential speed
- Pond-depth control
- Gas-tight centrifuge configuration
- Nitrogen purging and blanketing system
- Explosion-proof electrical components
- Corrosion-resistant wetted parts
- Wear-resistant scroll and discharge area
- Clarified-liquid collection and recycling
- PLC and VFD automatic control
- Connection to filter press, dryer, or regeneration system
How the Decanter Centrifuge Works
1. Catalyst Slurry Feeding
Catalyst slurry enters the rotating bowl through a controlled feed pipe.
An agitated tank is normally recommended to prevent catalyst settling and maintain a stable feed concentration.
2. Centrifugal Sedimentation
High-speed rotation separates catalyst particles and suspended solids from the liquid phase.
The denser solids move outward and form a sediment layer against the bowl wall. The clarified liquid remains closer to the center.
3. Continuous Solids Conveying
The internal screw conveyor rotates at a controlled differential speed.
It continuously moves settled catalyst solids toward the conical end for further dewatering before discharge.
4. Clarified Liquid Discharge
The separated liquid leaves through the liquid outlet.
It can be returned to the reaction process, sent to polishing filtration, recovered as process solvent, or transferred to further treatment.
5. Thickened Catalyst Solids Discharge
Concentrated catalyst solids are discharged continuously.
The recovered catalyst can be sent to washing, regeneration, drying, precious-metal recovery, storage, or controlled disposal.
| Model | Diameter (mm) | Length (mm) | Length-to-diameter rate | G force | Max solid discharge (m³/h) | Weight (kg) | Dimension (L*W*H) (mm) |
|---|---|---|---|---|---|---|---|
| PDC-10 | 250 | 1000 | 4 | 4080 | 0.4 | 1000 | 2410*800*1080 |
| PDC-12 | 4200 | 1350 | 4 | 3500 | 0.6 | 1200 | 2610*800*1080 |
| PDC-12 | 4200 | 1350 | 4.5 | 3180 | 1.2 | 1800 | 3495*840*1180 |
| PDC-18 | 4000 | 1600 | 4.5 | 3180 | 1.2 | 3200 | 3497*1020*1385 |
| PDC-18 | 450 | 2150 | 4 | 2500 | 2 | 3800 | 4447*1080*1385 |
| PDC-20 | 400 | 2250 | 4.5 | 2500 | 3.5 | 4000 | 4580*1140*1470 |
| PDC-21 | 530 | 2280 | 4.3 | 2500 | 5 | 5000 | 4924*1170*1540 |
| PDC-26 | 655 | 2800 | 4.3 | 2270 | 8 | 7000 | 4300*1900*1350 |
Catalyst Type
Confirm whether the slurry contains nickel, palladium, platinum, Raney nickel, FCC catalyst fines, or supported catalysts. Different catalysts require different separation and safety configurations.
Particle Size and Settling Behavior
Fine or low-density catalyst particles may settle slowly. Particle size, density, agglomeration, and settling performance should be tested before selection.
Slurry Concentration and Viscosity
Solids concentration and liquid viscosity directly affect capacity, torque, solids discharge, and clarified-liquid quality.
Carrier Liquid and Safety Conditions
Provide the liquid composition, temperature, pressure, flash point, and pH. Solvent-based slurry may require gas-tight sealing, nitrogen protection, and explosion-proof components.
Corrosion, Wear, and Purity
Wetted materials and wear protection should match the chemical and abrasive conditions. Precious-metal or reusable catalysts also require contamination control and high solids recovery.
High Catalyst Recovery
High centrifugal force continuously separates catalyst particles from the reaction liquid, reducing valuable catalyst loss.
Closed and Safe Operation
Gas-tight construction, nitrogen protection, and explosion-proof components are available for solvent-based or hazardous slurry.
Process-Liquid Recovery
Clarified reaction liquid, washing liquid, or compatible solvent can be recovered for reuse or further purification.
Stable Slurry Thickening
Adjustable bowl speed, differential speed, pond depth, and feed rate provide stable separation under changing slurry conditions.
Corrosion and Wear Protection
Corrosion-resistant materials and wear-resistant components can be selected according to the catalyst, carrier liquid, and operating conditions.
Please provide:
- Catalyst type and particle size
- Solids concentration and slurry viscosity
- Liquid or solvent composition
- Required capacity and recovery target
- Safety and material requirements
Can it recover fine catalyst particles?
Yes. Separation depends on particle size, density, and slurry condition.
Can it recover valuable catalysts?
Yes. It can recover nickel, palladium, platinum, and other catalyst solids.
Can it handle solvent-based slurry?
Yes. Gas-tight, nitrogen-protected, and explosion-proof designs are available.
Can the clarified liquid be reused?
Yes. It can be returned to the process or sent for further purification.
Can it replace a filter press?
It is mainly used for continuous recovery and thickening. Further filtration may still be require
Peony welcomes cooperation with chemical plants, petrochemical companies, pharmaceutical manufacturers, catalyst producers, precious-metal recovery companies, engineering contractors, distributors, and industrial separation partners.
We support partners with catalyst slurry testing, centrifuge selection, gas-tight design, nitrogen protection, explosion-proof configuration, corrosion-resistant materials, wear protection, process-liquid recycling, installation guidance, commissioning, spare parts, and after-sales service.
Send us your catalyst slurry information, including catalyst type, particle size, solids concentration, carrier liquid, operating temperature, required capacity, recovery target, safety requirements, and downstream arrangement. Our engineering team will recommend a suitable decanter centrifuge solution for your catalyst slurry recovery process.
Wastewater Treatment Decanter Centrifuge
Palm Oil Extraction Decanter Centrifuge
Fine Chemical Industry Decanter Centrifuge
