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  • Which plant uses expellers and hexane extraction?
  • Just one plant uses expellers followed by hexane extraction. Peanuts are a relatively high-oil oilseed (with about 50% oil) and the meal after expelling contains about 6–7% oil. Generally, the choice peanuts are used as confections (salted whole, in-shell). Lower grade peanuts are crushed for oil and meal.
  • What are the operating parameters of an Expeller Plant?
  • Typical operating parameters for an expeller plant processing peanuts to oil and meal (48% oil) follow. To process peanuts, the outer shell is removed and decorticated to 5–10% shells. Below 5% press performance is affected, because below 5% the material is too soft and above 10% wear problems in the expeller can occur.
  • How is peanut oil extracted?
  • Mechanical pressing can extract 85% oil and the remaining oil is extracted by the solvent extraction method. According to mechanical pressing technology, you can divide the peanut oil production process into three phases. These are peanuts preparation, pressing and crude oil refining. Step 1: Cleaning Step 2: Dehulling Step 3: Cooking
  • How were Spanish farmers' stock peanuts processed?
  • Three hundred and thirty tons of Spanish farmers’ stock peanuts were continuously processed in an eight-press cotton mill with peanut cleaning equipment. Peanuts (9.6% moisture), coming into the mill from truck loaders yielded 73% kernels, 38.8% oil, and about 6% residual oil.
  • Why do we use a cleaning machine for peanut extraction?
  • Batches of harvested peanuts will contain whole peanuts in the shell, some shelled peanuts, and foreign objects (e.g., leaves, nodes, weed seed, etc.). The peanuts are then cleaned using cleaning machine so that oil is not contaminated with foreign materials. Therefore, it helps to preform the extraction process as efficiently as possible.
  • Why do we dehull peanut oil before oil pressing?
  • The purpose of dehulling before oil pressing is to reduce the absorption of oil by the shell, increase the yield of oil, improve the processing efficiency of the peanut oil processing machine and reduce equipment wear and tear. This oil can also improve cake quality and added value.