Isomax Process

Studying of Catalyst Deactivation in a Commercial Hydrocracking Process (ISOMAX)

Catalyst deactivation is usually indispensable, although the rate at which it occurs varies greatly. At first, this article discusses the causes of deactivation in a commercial hydrocracking unit called Isomax. Then, a 5-lump kinetic model including catalyst decay function for hydrocracking of vacuum gas oil in a commercial plant is proposed. The model considers vacuum gas oil (VGO) having boil...

Continuous Lumping Model of an Industrial Refinery Isomax Reactor

Hydrocracking is an important secondary process in the petroleum industry, generally used to process heavy oil cuts. The process is tailored to various needs of refineries in order to maximize middle distillates, gasoline, LPG and similar products. Therefore, kinetic modeling of hydrocracking reactors applied to upgrade vacuum heavy oil (Isomax) is important and needs to be investigated. In thi...

Continuous Lumping Model of an Industrial Refinery Isomax Reactor

Product Yields Prediction of Tehran Refinery Hydrocracking Unit Using Artificial Neural Networks

In this contribution Artificial Neural Network (ANN) modeling of the hydrocracking process is presented. The input–output data for the training and simulation phases of the network were obtained from the Tehran refinery ISOMAX unit. Different network designs were developed and their abilities were compared. Backpropagation, Elman and RBF networks were used for modeling and simulation of the hyd...

MEASUREMENT OF THE ABUNDANCE OF RADIOACTIVE Be AND OTHER LIGHT ISOTOPES IN COSMIC RADIATION UP TO 2 GeV NUCLEON 1 WITH THE BALLOON-BORNE INSTRUMENT ISOMAX

The Isotope Magnet Experiment (ISOMAX), a balloon-borne superconducting magnet spectrometer, was designed to measure the isotopic composition of the light isotopes (3 Z 8) of cosmic radiation up to 4 GeV nucleon 1 with a mass resolution of better than 0.25 amu by using the velocity versus rigidity technique. To achieve this stringent mass resolution, ISOMAX was composed of three major detector ...