Estudio de la Corrosividad del Jugo de Caña en los Puntos más Críticos del Proceso de Elaboración de Azúcar en el Micro Ingenio ASPROCA.

Abstract

The Corrosion Study of the Sugar Cane Juice has been carried out in the most critical points of the Sugar Cane Elaboration Process at the micro sugar mill ASPROCA-Chazo Juan - Bolivar, determining the corrosive rate of the Sugar Cane Juice, Water and Atmosphere, to select the adequate materials for the construction of the new equipment to be installed in the future. The corrosion velocity analysis of the steels AISI 1015 and the AISI 304 through the installation of coupons according to the Norms PEMEX Nº 4.411.03, was carried out. The chemical analysis of the slag of the corroded equipment was performed through the diffractometry method and the water chemical analysis was also performed by taking samples from the place water. With these results, it was determined that the a low-carbon AISI 1015 steel corrosion rate exposed to three abovementioned environments is high; the stainless steel AISI 304 corrosion rate exposed to the same environments is minimum. The slag analysis showed a high iron oxide content and a high silicon oxide content. The water chemical analysis presented a high gas concentration prevailing the solved oxygen in high quantities and provoking corrosion in piping and in boilers. It was necessary to recommend the use of the stainless steel AISI 304 for the manufacturing of the storage equipment and clarification of the sugar cane juice. It was necessary to recommend the use of stainless steel piping from the storage area up to the sugar cane clarification area. In the following processes, it is recommended to use galvanized steel piping. It was necessary to recommend the addition of oxygen kidnaper in the water storage pool.