Enhancement of hydrotreating process evaluation: correlation between feedstock properties, in-line monitoring and catalyst deactivation

被引：8

作者：

Novaes, Leandro da Rocha ^{[1
]}

Secchi, Argimiro Resende ^{[1
]}

Martins Salim, Vera Maria ^{[1
]}

de Resende, Neuman Solange ^{[1
]}

机构：

[1] Univ Fed Rio De Janeiro, Programa Engenharia Quim, COPPE, Cidade Univ, BR-21941972 Rio De Janeiro, RJ, Brazil

来源：

CATALYSIS TODAY | 2022年 / 394卷

关键词：

Hydrotreating; Online monitoring; Fourier-transform infrared characterization; GAS OIL; ACCELERATED DEACTIVATION; 3-PHASE REACTOR; HEAVY OIL; CRUDE; FTIR;

D O I：

10.1016/j.cattod.2021.07.026

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

During middle distillates hydroprocessing, the relationship between feed properties, operating conditions and the deactivation phenomenon is crucial to achieve fuels specification. In this work, an accelerated deactivation methodology was employed to in short periods observe and study the deactivation phenomenon. For the stabilization step, 100 h of run were necessary to guarantee that the initial deactivation was achieved. Easy, versatile, and portable tools were employed successfully to monitor and evaluate the hydrotreating process in line, as Fourier Transform Infrared (FTIR) analysis together with density measurements. Besides, process modifications related to hydrotreating reactions were identified using FTIR and it was confirmed that feedstock properties may directly influence the deactivation phenomenon. The feedstock with higher aromatics and olefins concentration required increasing the temperature to 420 degrees C and the lower H-2/oil ratio (150 std m(3)/m(3)) to reduce desulfurization and hydrogenation reaction activities by coke formation and deposition.

引用

页码：390 / 402

页数：13