Application of hydrocarbon cracking experiments to ethylene unit control and optimization

Experimental study of hydrocarbon structure effects on the composition of its pyrolysis products

“…for 27 evaluated products or product fractions, while the range of detected products extends from hydrogen to pyrolysis oil. A mathematical model based on the artificial neural network was presented [47] showing that there is a good correlation between the product yields obtained with laboratory apparatus and corresponding yields observed in the data from an industrial unit [48]. The mathematical model was also able to predict yields of major products obtained by an industrial scale steam-cracking of a feedstock from the yields observed by Pyr-GC experiment using the same feedstock.…”

“…This technique, similar to pyrolysis gas chromatography (Pyr-GC), was used to assay cracking yields of assorted steam-cracking feedstocks [44,45]. It was found [46] that it can provide very reliable results, the absolute standard deviation of product yields varying in the range of 0.05-0.75% (wt.)…”

Substitute Composition of Naphtha Based on Density, SIMDIST, and PIONA for Modeling of Steam Cracking

“…The model was extensively utilized for modeling the industrial purposes, and the validity of the results is widely recognized. It was used to support the design process of a new reactor coil by ABB Lummus in Chemopetrol Co. plant , . It was also applied as a balance tool for long‐term monitoring of an entire production unit , for improvement of process control and production planning , .…”

“…It was used to support the design process of a new reactor coil by ABB Lummus in Chemopetrol Co. plant , . It was also applied as a balance tool for long‐term monitoring of an entire production unit , for improvement of process control and production planning , . Also, the absolute middle deviation of predicted product yields has been determined using a long series of data.…”

“…Nowadays, efforts are made to optimize the utilization of hydrocarbon streams throughout the whole refinery‐petrochemical complex , . Therefore, many secondary naphtha streams, such as the naphtha fraction isolated from hydrocracked vacuum distillate or from hydrotreated gas oils, are considered as potential feedstocks for steam cracking.…”