The paper presents designing of a robust fault diagnosis system for a catalytic cracking process using artificial neural networks. Identification of the considered process is carried out by using recurrent neural networks. To achieve a robust fault diagnosis system, an uncertainty associated with the model is also taken into account. Neural version of the Model Error Modelling is used to deal w...

The co-cracking of vacuum gas oil (VGO) and bio-oil has been proposed to add renewable carbon into the co-processing products. However, environmental performance scheme is still unclear. In this paper, impacts are calculated by end-point method Eco-indicator 99 based on data from actual industrial operations reports. Three scenarios, namely fast pyrolysis scenario, catalytic scenario pure VGO f...

Three high-silica mordenite zeolites differing in SiO440, ratio were prepared by direct synthesis without using any template. The products Si02/A120, ratio is influenced by the starting gel composition. This ratio is increased upon ion-exchange with NH,Cl and subsequent calcination to prepare protonic mordenite. The protonic mordenites with Si02/A1203ra tios of 14.6,29.2 and 34.6 were chara...

Waste plastics contain a substantial number of valuable chemicals. The wastes from post-consumer as well as from industrial production can be recycled to valuable chemical feedstock, which can be used in refineries and/or petrochemical industries. This chemical recycling process is an ideal approach in recycling the waste for a better environment. Polymer cracking using a laboratory fluidized b...

The history of fluidized bed technology dates back 60 years. Gasification of pulverized coal in the Winkler process during the 1920's marked the beginning of fluidized bed application. Consider­ ,able work done during World War II by U.S. oil companies to improve the catalytic cracking of kerosene led to the development of the Fluid Catalytic Cracking process. Fluidized bed technology later exp...

The problem of spent fluid catalytic cracking (SFCC) catalyst resource utilization, draws more and attention to system analysis. SFCC was leached in an oxalic solution for comprehensive utilization. results showed that a D50 ≤ 17.34 μm, the 240 min at 95 °C presence 2 mol/L acid solution, extent leaching V, Ni, Fe, Al 73.4%, 32.4%, 48.2%, 36.8%, respectively. Studies on occurrence state main io...