Articles
Flygt Flange Mounted Agitator Succeeds At Cargill Palm Products
March 17, 2009
•Case Study: Flygt Flange Mounted Agitator Succeeds At Cargill Palm Products
By ITT Water & Wastewater - Flygt Products
Cargill Palm Products Sdn. Bhd. is a subsidiary of Cargill United States in Malaysia and started operations in 1980. The company operates two physical refining plants and two fractionation plants and is involved in manufacturing palm products such as olein, stearin, refined bleached deodorised palm oil (RBDPO) and palm fatty acid from crude palm oil (CPO). In January 2005, ITT Flygt Submersible Agitator was introduced to Cargill's static condition crude palm oil storage tank to maintain the homogeneity of liquid going into refining process. The result, quality of the end product was improved as well as energy consumption. This year the company has decided to install a total number of 22 units SR4630SF flange mounted agitator for their new feed stock supply plant supplying ingredient oil to Mission Biofuels Ltd. for its biodiesel and glycerine purification plant in Malaysia.
In this particular plant, crude palm oil transferred to and from the storage tank in batch. Prior to the introduction of agitator, liquid elements experienced different degree of oxidation, subjected to each respective residence time in tank, heat and temperature strata, and varying metal traces concentration due to contamination from upstream extraction processes, resulted in fluctuation of oil quality. This led to the difficulty in establishing stable optimum processing conditions, thus resulted in reduced quality of end product, higher oil loss, and increased operating expenses. Rancidity had developed in some circumstances due to oxidative deterioration, in which oil gave off-flavour smell. In addition residue formed by heavy impurities and oxidization deposits which could be 4 inches thick after half year operation, covered the heating coils, and resulted in prolonged inefficient heating. Cleaning had to be done at least twice a year, which was a costly and difficult job.
The solution
Cargill bought one unit of ITT Flygt SR4660SF flange mounted stainless steel 316L agitator
coupled with flange adaptor for its storage tank of 11m in height and 16.5m in diameter. Agitator
was a warm liquid version since it was designed to be installed near heating coils. The agitator
was also equipped with external oil change feature.
•Case Study: Flygt Flange Mounted Agitator Succeeds At Cargill Palm Products
