Solvent Extraction Plant is the process of extracting oil from seeds and other oil containing material by addition of a solvent. Food Grade n-Hexane which is a by-product of Petroleum is used at various stages depending on the amount of oil the seeds hold. It can be coupled with an oil extraction and be used on the left over seed to ensure complete extraction of oil from the seed. Depending on the seed, Solvent Extraction method can be used on seen containing around 20% of oil.