Effect of composition of coke deposited in delayed coker furnace tubes on on-line spalling
Abstract Delayed coking is one of the most widely used residue upgradation process in crude oil refining where vacuum residue is thermally cracked and converted into distillates and petroleum coke. During heating of vacuum residue in coker furnace, coke is continuously deposited in furnace tubes which is removed at regular intervals by one of the ...
Harender Bisht +8 more
openaire +2 more sources
The accurate dynamic model of the chemical process is an important condition for the successful implementation of advanced control in the plant. In this paper, an efficient second order algorithm for long short-term memory (LSTM) network training is ...
Yaxin Wang, Baochang Xu
doaj +1 more source
Compositional Simulation of a Refinery Coker Furnace - An Industrial Example of Two-Phase Flow with Chemical Reaction [PDF]
A computer program (KOKSOVN) has been developed for compositional steady-state simulation of a refinery delayed coker furnace. The main objective of this work has been to establish a tool for studying the effects that influence the deposition of coke on ...
Sigurd Skogestad +2 more
doaj +1 more source
Upgrading of coker distillate under variable hydrotreating operating conditions
Studies on hydrotreating coker distillates, produced from a delayed coker unit were done using a commercially available CoMo/γ-Al2O3 catalyst, on which 0.2 wt% P2O5 was added in order to improve its characteristics.
H.A. Elsayed, H.S. Ahmed, M.F. Monufy
doaj +1 more source
Diclofenac Prolongs Repolarization in Ventricular Muscle with Impaired Repolarization Reserve [PDF]
Background: The aim of the present work was to characterize the electrophysiological effects of the non-steroidal anti- inflammatory drug diclofenac and to study the possible proarrhythmic potency of the drug in ventricular muscle.
A Farkas +56 more
core +5 more sources
RESPONSE OF SELECTED YIELD ATTRIBUTES OF COTTON (GOSSYPIUM HIRSUTUM L) TO VARIED ENVIRONMENTS AND SOWING ROW POSITIONS [PDF]
Understanding the impact of different microenvironments (sowing direction and sowing dates) and row locations on yield and yield component of Coker 310 cultivar were studied.
K. K. Muhammad, S. M. Maaroof
doaj +1 more source
Evolutionary rates and gene dispensability associate with replication timing in the Archaeon Sulfolobus islandicus [PDF]
In bacterial chromosomes, the position of a gene relative to the single origin of replication generally reflects its replication timing, how often it is expressed, and consequently, its rate of evolution.
Cooper, Vaughn S. +3 more
core +2 more sources
Faults and malfunctions on complex chemical production systems generate alarm cascades that hinder the work of the operators and make fault diagnosis a complex and challenging task.
Gyula Dorgo, Kristof Varga, Janos Abonyi
doaj +1 more source
Extra-articular tenodesis combined with an anterior cruciate ligament reconstruction in acute anterior cruciate ligament tear in elite female football players [PDF]
PURPOSE: The growing popularity of elite soccer among female participants has led to increased incidents of anterior cruciate ligament (ACL) ruptures. Many authors underline a positive glide after ACL reconstruction (ACLR), especially in women.
FABBRI, MATTIA +7 more
core +1 more source

