Peanuts are a high-oil-content oilseed (45-55% oil content) and are commonly used...Pre-pressing-leaching combined processTo balance oil yield and economy, Penguin Group supports customized solutions, tailored to your specific needs regarding oil products and markets.
Raw material intake → Cleaning → Crushing → High-temperature steaming/stirring (approximately 150°C) → Screw press/small press → Cold filter/coarse filter → Degumming (cold filter or light refining) → Canning/packaging
Features: Focus on creatingRich flavorThese premium oils develop a unique nutty aroma through the Maillard reaction.
Raw material intake → Cleaning → Crushing → Roasting (approx. 120°C, adjustable) → Pre-pressing (screw press) → Extraction (ring/drag chain/rotary extractor) → Desolventizing of mixed oils → Crude oil → Refining (degumming → deacidification → decolorization → deodorization) → Finished oil packaging
Features: The core objective of adopting the "pre-pressing-leaching combined process" isMaximize oil yieldEconomic benefits should be considered while also taking into account oil quality.
Performance metrics (depending on the project):
Purpose: Deep oil extraction is performed on the pre-pressed cake to maximize the overall oil yield.
Process flow: Prepressed cake → Extractor (solvent countercurrent extraction) → Mixed oil → Evaporation/stripping → Extracted crude oil
Key equipment: Annular leaching machine, drag chain leaching machine, horizontal rotary leaching machine, DTDC descaling machine, full negative pressure evaporation system, condensate tail gas recovery device.
| Residual oil extraction rate | ≤ 0.8% |
| Solvent recovery rate | ≥ 99.5% |
| Solvent consumption per ton | ≤ 1.5 kg/t |
| Thermal energy utilization rate | Increase by 10-15% |
Technical Highlights: Fully enclosed negative pressure system to prevent solvent leakage; high-efficiency evaporator for energy saving and stability; environmentally friendly refrigeration + exhaust gas condensation system to meet safety standards; flexible modular configuration.
