Comparison of Quench Systems in Commercial Fixed-Bed Hydroprocessing Reactors

Several aspects of quenching in fixed-bed hydroprocessing reactors have been reviewed. Examples of processes using hydrogen and liquids as quench fluids are described, and the effects of each quench fluid on the reaction system are discussed. The advantages and disadvantages of each approach on the...

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Bibliographic Details
Published in:Energy & fuels 2007-03, Vol.21 (2), p.1133-1144
Main Authors: Alvarez, Anton, Ancheyta, Jorge, Muñoz, José A. D
Format: Article
Language:English
Subjects:
Applied sciences
Crude oil, natural gas and petroleum products
Energy
Exact sciences and technology
Fuels
Processing of crude oil and oils from shales and tar sands. Processes. Equipment. Refinery and treatment units
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Summary:Several aspects of quenching in fixed-bed hydroprocessing reactors have been reviewed. Examples of processes using hydrogen and liquids as quench fluids are described, and the effects of each quench fluid on the reaction system are discussed. The advantages and disadvantages of each approach on the product quality and process configuration are also highlighted. It was recognized that traditional quench hydrogen helps in improving product quality and reducing catalyst deactivation by coke formation but increases equipment requirements (e.g., compressor) and relative costs, while quench liquid avoids this problem but increases reactor volume.
ISSN:0887-0624
1520-5029
DOI:10.1021/ef060515x