Legorreta-Trejo, Norma Angélica, Elizalde-Martínez, Ignacio, Monterrubio-Badillo, Ma. del Carmen, and Mederos-Nieto, Fabián S.
Investigación y Ciencia de la Universidad Autónoma de Aguascalientes. sep-dec2019, Vol. 27 Issue 78, p55-63. 9p.
Subjects
MATHEMATICAL models, HYDROCRACKING, PETROLEUM, DATA modeling, CONCORDANCES, and HYDROCARBONS
Abstract
The mathematical modeling of hydrocracking reaction of petroleum fractions was carried out considering a pseudohomogeneous phase. The discrete description was used to represent the kinetic of the reactions. One to 6 lumps of pseudocompounds with different reaction routes were used. Data from the oil hydrocarbon hydrocracking of literature were used to obtain the mathematical model parameters. Modeling more than one group or lump was done by automatic successive approach solving the system of equations starting with one lump, then two, then three, and so on, checking that the material balance is satisfied in each case. Findings showed concordance between the models and the experimental data, highlighting the use of six lumps, from whose description it is possible to determine the composition of the hydrocracking products in a detailed and reliable way. [ABSTRACT FROM AUTHOR]
Investigación y Ciencia de la Universidad Autónoma de Aguascalientes. may-aug2018, Issue 74, p32-38. 7p.
Abstract
Moringa oleifera is highly valued worldwide due to its properties. One of the profitable parts of the tree are the seeds. In the present work the oil extraction was developed using a Soxhlet extractor from Moringa oleifera Lam. Plain variety seeds of Cuban origin. The percentage of extraction was established as response variable in the experimental design. The factors temperature extraction and solute-solvent ratio had a significant influence in the response factor, with probability values lower than 0.05. A mathematical model was obtained which explained the 94.03% of the variability in the response factor. The best condition for oil extraction was reached operating at a relation solute-solvent 1:6 and an extraction temperature of 65℃. [ABSTRACT FROM AUTHOR]
