文献类型：期刊文献

英文题名：Molecular-level reaction network in delayed coking process based on structure-oriented lumping

作者：Ye, Lei[1];Liu, Jichang[1,2];Xing, Biao[1];Qin, Xinglong[1];Yu, Wenxin[1];Xie, Jinquan[1];Hou, Lixin[1];Wang, Hangzhou[3];Ji, Ye[3];Lu, Diannan[4]

机构：[1]East China Univ Sci & Technol, Sch Chem Engn, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[2]Shihezi Univ, Sch Chem & Chem Engn, Key Lab Green Proc Chem Engn Xinjiang Bingtuan, Shihezi 832003, Peoples R China;[3]China Natl Petr Corp, China Petr Planning & Engn Inst CPPEI, Beijing 100083, Peoples R China;[4]Tsinghua Univ, Dept Chem Engn, Beijing 100084, Peoples R China

年份：2021

卷号：246

外文期刊名：CHEMICAL ENGINEERING SCIENCE

收录：;EI(收录号：20213310771680);WOS:【SCI-EXPANDED(收录号:WOS:000702894400010)】；

基金：This work was supported by the National Natural Science Foundation of China and PetroChina (U1862204) .

语种：英文

外文关键词：Structure-oriented lumping; Reaction kinetics; Thermal cracking; Reaction network

摘要：Based on the structure-oriented lumping method, a molecular-level reaction kinetic model of the delayed coking process, which adopted 24 structural increments to construct the feed molecular matrix containing 2944 molecules, was established with a reaction network containing 74,581 reactions using MATLAB. The reliability of the model was verified by experimental results. According to the discriminant rules of structural increments, 173 structural vectors in gasoline and 1132 structural vectors in diesel were classified into different group compositions, respectively. The model could track the reaction path of any specific molecule in the complex thermal cracking reaction network. The influences of operation conditions such as recycle ratio on the product distribution could be discovered through the calculation of the molecular-level model, which is helpful for the process optimization and precise regulation of product composition for the delayed coking plants. CO 2021 Elsevier Ltd. All rights reserved.