ANALYSIS OF TECHNICAL FEASIBILITY OF THE CATALYST WASTE FROM PETROLEUM FLUID CATALYTIC CRACKING AS RAW MATERIAL FOR RED CERAMICS PRODUCTION

Reference	Presenter	Authors (Institution)	Abstract
06-206	Lucas Fonseca Amaral	Amaral, L.F.(Universidade Estadual Norte Fluminense Darcy Ribeiro); Teixeira, G.(Universidade Estadual Norte Fluminense Darcy Ribeiro); Delaqua, G.C.(Universidade Estadual do Norte Fluminense Darcy Ribeiro); NICOLITE, M.(Universidade Estadual do Norte Fluminense - Darcy Ribeiro); Vieira, C.M.(Universidade Estadual do Norte Fluminense Darcy Ribeiro);	The catalytic cracking process is conducted to convert less valuable heavy oils into more valuable and higher demand products. This is accomplished by breaking the long chains of hydrocarbon molecules in the FCC units. The process is carried out under heat, pressure and acid solid catalyst, in which the zeolites are the most used. As soon as the virgin catalyst is put into use, its activity begins to decline, mainly due to coking and contamination by heavy metals. Globally it is estimated that 1400 tons per day of spent catalyst are generated. This waste is treated as hazardous waste, and its disposition in a properly controlled landfill is not only costly, but it is the least noble alternative in the order of priority in solid waste management. A technical and economical solution to this scenario is the use of spent catalyst as a raw material for the ceramics industry. Thus, the objective of this work is to provide a technically and environmentally correct alternative for the use of the catalyst waste as raw material for the red ceramic industry. The chemical, meralogical and thermal analyzes were used to characterize the raw materials. Therefore, laboratory specimens were developed by extrusion, involving the incorporation of 0, 5, 10 and 20% of residue by weight in a ceramic clayey body for production of red ceramics. The specimens were sintered at temperatures range of 850 - 1050 °C and, by means of technological tests, the technical feasibility of the incorporation of up to 5% of residue for the manufacture of solid bricks was verified, according to the standardized properties of water absorption and mechanical resistance.
<< Back