A comprehensive review of catalyst deactivation and regeneration in heavy oil hydroprocessing

IF 7.2 2区工程技术 Q1 CHEMISTRY, APPLIED

Fuel Processing Technology Pub Date : 2024-12-03 DOI:10.1016/j.fuproc.2024.108170

Phuong T.H. Pham , Cham Q. Pham , Thi-Tam Dam , Quang-Anh Nguyen , Tung M. Nguyen

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Abstract

Catalyst deactivation and regeneration are critical aspects of heavy oil hydroprocessing. This review provides a comprehensive overview of the factors contributing to catalyst deactivation, including coke formation, metal and other heteroelement poisoning, and active metal sintering. We delve into the mechanisms underlying these deactivation processes and discuss their impact on catalyst performance and reactor operations. Furthermore, the review explores various catalyst regeneration techniques, such as combustion and gasification techniques. We evaluate the effectiveness of these methods in removing coke and restoring catalyst activity. Additionally, we discuss strategies for mitigating coke formation, including the development of more coke-resistant catalysts and the addition of solvents and surfactants. Refineries can optimize their operations, improve product yields, and minimize environmental impact by understanding the causes of catalyst deactivation and the effectiveness of different regeneration techniques.

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重油加氢工艺中催化剂失活与再生研究综述

催化剂的失活和再生是重油加氢加工的关键环节。本文综述了导致催化剂失活的因素，包括焦炭形成、金属和其他异质元素中毒以及活性金属烧结。我们深入研究了这些失活过程的机制，并讨论了它们对催化剂性能和反应器操作的影响。此外，综述了各种催化剂再生技术，如燃烧和气化技术。我们评价了这些方法在除焦和恢复催化剂活性方面的有效性。此外，我们还讨论了减轻焦炭形成的策略，包括开发更多的抗焦炭催化剂和添加溶剂和表面活性剂。炼油厂可以通过了解催化剂失活的原因和不同再生技术的有效性来优化操作，提高产品产量，并最大限度地减少对环境的影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Fuel Processing Technology 工程技术-工程：化工

CiteScore

13.20

自引率

9.30%

发文量

398

审稿时长

26 days

期刊介绍： Fuel Processing Technology (FPT) deals with the scientific and technological aspects of converting fossil and renewable resources to clean fuels, value-added chemicals, fuel-related advanced carbon materials and by-products. In addition to the traditional non-nuclear fossil fuels, biomass and wastes, papers on the integration of renewables such as solar and wind energy and energy storage into the fuel processing processes, as well as papers on the production and conversion of non-carbon-containing fuels such as hydrogen and ammonia, are also welcome. While chemical conversion is emphasized, papers on advanced physical conversion processes are also considered for publication in FPT. Papers on the fundamental aspects of fuel structure and properties will also be considered.