ln-planl control measures in the different manufacturing units in an Oil and Soap Company were carried out. The hot spent lye at 105°C can be saponified again with a predetermined free fatty acid produced in the plant in order to recover soap and to avoid excessive foams. Also, recovery of residual soap resulting from steam blowing during shutdown periods was achieved by using a Jacketed storage tank heated with steam. The techno-economic study for this proposal revealed that the total saving per year is 237,000 L.E. and the percentage return on investment is almost 86%, while the payout period is 0.2 month. Also, the implementation of any possible housekeeping was taken into consideration.
In-Plant Control in Oil and Soap Industry
Nabil Abdelmonem, Sohair I. Abou-Elela; In-Plant Control in Oil and Soap Industry. Water Sci Technol 1 May 1994; 29 (9): 143–149. doi: https://doi.org/10.2166/wst.1994.0464
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