%0 Journal Article %T Prediction of the Products Yield of Delayed Coking for Iranian Vacuum Residues %J Iranian Journal of Oil and Gas Science and Technology %I Petroleum University of Technology %Z 2345-2412 %A Torabi Esfahani, Farshad %A Ivakpour, Javad %A Ehsani, Mohammadreza %D 2018 %\ 07/01/2018 %V 7 %N 3 %P 53-64 %! Prediction of the Products Yield of Delayed Coking for Iranian Vacuum Residues %K Product Yield %K Delayed Coking %K Thermal Cracking %R 10.22050/ijogst.2017.102019.1415 %X In this work, new correlations are proposed to predict the products yield of delayed coking as a function of CCR and temperature based on the experimental results. For this purpose, selected Iranian vacuum residues with Conradson carbon residue (CCR) values between 13.40-22.19 wt.% were heated at a 10 °C/min heating rate and thermally cracked in a temperature range of 400-500 °C in a laboratory batch atmospheric delayed coking reactor for 2 hours. The amount of distillate (C5+-500 °C) and coke yield were measured in all the experiments, and the gas (C1-C4) product yield was calculated based on mass balance between products and feedstock in each experiment. According to the developed functions, products yield changes with CCR value linearly and is a power function of temperature. The further investigation of the results show that by a 1 wt.% increase in CCR value, the distillate yield decreases by about 2.1 wt.%, but the amount of coke and gas yields rise by 1.2 wt.% and 0.9 wt.% respectively. %U https://ijogst.put.ac.ir/article_55729_57594dcc241bc6edb7b253bf3b4d08fd.pdf