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Full-Text Articles in Chemical Engineering
Effect Of Hydrotreating Fcc Feedstock On Product Distribution, Rafael Maya-Yescas
Effect Of Hydrotreating Fcc Feedstock On Product Distribution, Rafael Maya-Yescas
Rafael Maya-Yescas
The demand of low-sulfur fuels has been increasing during the last 20 years due to environmental concerns about SOx emissions from processing plants and engines. Due to its high contribution to the gasoline pool, hydrotreating fluid catalytic cracking (FCC) feedstock offers several advantages, such as the increase of conversion and yields of gasoline and liquid-phase gas, meanwhile sulfur content in fuels is diminished. However, there are more important factors to be considered when hydrotreating FCC feedstock. In this work, two FCC feedstocks, typical and hydrotreated, were converted in a microactivity test (MAT) reactor, as described by ASTM D-3907-92, at different …
Translation Of Mat Kinetic Data To Model Industrial Catalytic Cracking Units, Rafael Maya-Yescas, Elizabeth León-Becerril, Daniel Salazar-Sotelo
Translation Of Mat Kinetic Data To Model Industrial Catalytic Cracking Units, Rafael Maya-Yescas, Elizabeth León-Becerril, Daniel Salazar-Sotelo
Rafael Maya-Yescas
Bench and laboratory scale reactors are required to infer kinetic data for catalytic cracking units. One of the most common methods is the microactivity test (MAT, ASTM D-3902-92), that emulates the catalyst-to-oil ratio using a fixed-bed reactor and a semi-batch accumulator of liquids. Translation of data obtained from MAT tests in order to infer kinetic parameter to model continuous industrial units is, consequently, difficult and uncertain. In this work, the extraction of kinetic data obtained in a MAT reactor is analyzed. Estimation of a kinetic rate equation to evaluate instantaneous conversion in MAT reactors is performed. The activation energy obtained …