A Conceptual Catalytic Cracking Process to Treat Vacuum Residue and Vacuum Gas Oil in Different Reactors
A Conceptual Catalytic Cracking Process to Treat Vacuum Residue and Vacuum Gas Oil in Different Reactors
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DOI：
10.1021/ef201815z
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发表时间：
2012-02
期刊：
影响因子：
5.3
通讯作者：
Haohua Gao;Gang Wang;Hao Wang;Jianliang Chen;Chunming Xu;Jinsen Gao
中科院分区：
文献类型：
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作者：
Haohua Gao;Gang Wang;Hao Wang;Jianliang Chen;Chunming Xu;Jinsen Gao
在固定流化床反应器上考察了减压瓦斯油（VGO）、减压渣油（VR）及其不同VR掺混比（R0）的混合物的催化裂化性能。结果表明，VGO和VR之间产生了竞争吸附效应，进一步延缓了VGO的裂化。根据实验结果和反应特性的分析，提出了一种新的催化裂化工艺流程，并在提升管工业中试装置上进行了模拟实验。结果表明，与常规重油催化裂化（RFCC）相比，吸附竞争效应在一定程度上得到缓解，可获得更高的转化率和更好的产品。此外，产品的氢平衡表明，在概念催化裂化工艺的最佳反应条件下，焦炭和重质循环油（HCO）的减少导致进料中更多的氢被分配到中间产物中。
The catalytic cracking performances of vacuum gas oil (VGO), vacuum residue (VR), and their mixtures with different blend ratios of VR (R0) were investigated in a fixed fluidized bed reactor. The results indicate that a competitive adsorption effect developed between VGO and VR and further retarded VGO cracking. In accordance with the results and analysis of their reaction characteristics, a conceptual catalytic cracking process was proposed, and simulation experiments were carried out in a technical pilot scale riser (TPSR) apparatus. The results show that, compared with routine residue fluid catalytic cracking (RFCC), the competitive adsorption effect could be alleviated to some extent, and higher conversion and more desirable products could be obtained. Moreover, the balance of hydrogen for the products indicates that the decrease in coke and heavy cycle oil (HCO) at the optimal reaction conditions of the conceptual catalytic cracking process led to more hydrogen in the feed being distributed into the ...