Effect of vacuum gas oil hydrotreating reactor on multiple reactors and hydrogen network

doi:10.1016/j.cjche.2019.01.014

Abstract

Abstract: The inlet temperature of the Vacuum Gas Oil (VGO) hydrotreating reactor of a refinery is analyzed with the integration of multiple series reactors and hydrogen network considered. The effect of the inlet temperature (T₁) on hydrogen sinks/sources and the product output is analyzed systematically based on the simulation of the series reactors, including VGO hydrotreating reactor, hydrocracking reactor, fluid catalytic cracking reactor and visbreaking reactor. The general relation between the Hydrogen Utility Adjustment (HUA) and multiple pairs of varying sinks and sources is deduced, and correlations between varying streams and T₁ are linearly fitted. Based on this, the quantitative equation between HUA and T₁ is derived, and corresponding diagram is constructed. The T₁ corresponding the minimum hydrogen consumption is identified to be 345℃.

Key words: VGO hydrotreating, Reactors, Temperature, Hydrogen consumption

摘要： The inlet temperature of the Vacuum Gas Oil (VGO) hydrotreating reactor of a refinery is analyzed with the integration of multiple series reactors and hydrogen network considered. The effect of the inlet temperature (T₁) on hydrogen sinks/sources and the product output is analyzed systematically based on the simulation of the series reactors, including VGO hydrotreating reactor, hydrocracking reactor, fluid catalytic cracking reactor and visbreaking reactor. The general relation between the Hydrogen Utility Adjustment (HUA) and multiple pairs of varying sinks and sources is deduced, and correlations between varying streams and T₁ are linearly fitted. Based on this, the quantitative equation between HUA and T₁ is derived, and corresponding diagram is constructed. The T₁ corresponding the minimum hydrogen consumption is identified to be 345℃.

关键词: VGO hydrotreating, Reactors, Temperature, Hydrogen consumption

Donghui Lü, Yingjia Wang, Lingjun Huang, Di Zhang, Guilian Liu, Wei Li, Peng Wang. Effect of vacuum gas oil hydrotreating reactor on multiple reactors and hydrogen network[J]. Chinese Journal of Chemical Engineering, 2019, 27(10): 2498-2509.

Donghui Lü, Yingjia Wang, Lingjun Huang, Di Zhang, Guilian Liu, Wei Li, Peng Wang. Effect of vacuum gas oil hydrotreating reactor on multiple reactors and hydrogen network[J]. 中国化学工程学报, 2019, 27(10): 2498-2509.

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