Hydraulic pressing of oilseeds: Experimental determination and modeling of yield and pressing rates

Characteristics of vegetable oils for use as fuel in stationary diesel engines—Towards specifications for a standard in West Africa

“…In particular, they cause wear in the press, increasing impurity levels in the oil. Then, cooking pre-treatment of the seeds is a commonly used technique to facilitate oil expression and thereby increase pressing capacity and oil recovery: this is due to the thermal rupture of oil cell walls at temperatures above 100°C [39,40]. However, this is likely to raise phosphorus concentrations in the oil, known to cause clogging in diesel engines [13,41].…”

“…Therefore, there is no special need to analyse the higher heating value, except to calculate rates of substitution, when no values are available or have been found in the literature. The cetane number is relatively constant within a kind of vegetable oil and even between different kinds of oils (35)(36)(37)(38)(39)(40)(41)(42)(43)(44)(45) (Table 1). Therefore, measurement of the cetane number to ensure good quality SVO in stationary engines is pointless.…”

The Development of Expeller for Kernel based Seed and its Oil Characterization

“…Khan and Hanna [7] highlighted that extracting factors such as pressure, temperature, pressing time and moisture content of the seed significantly affect the oil yield during extraction. William et al [8] hinted that increase in the temperature and decrease in the moisture content increase the rate of oil extraction. Isobee et al [9] indicted over 93% oil recovery from a screw press fabricated for untreated sunflower seed.…”

Mechanical behaviour of selected bulk oilseeds under compression loading

“…This method is based on mechanical compression of oleaginous materials. The vegetable oil obtained via this method is characterized by high quality and can be used for special applications [4]. The most commonly used equipment for mechanical pressing is screw press.…”