Zhen Xu , Youbing Zhu , Maoming Gong , Nianming Jiao , Tao Zhang , Hui Wang
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Review on the poisoning behavior of typical metals on cracking catalysts for chemicals production from petroleum and anti-poisoning strategies
Catalytic cracking technology of crude oil to chemicals (COTC), characterized by its strong adaptability to raw materials, low energy consumption, and high yield of chemicals, aligns well with the refining industry's transition from a "fuel-based" to a "chemical-based" model. However, a significant issue in the catalytic cracking process of crude oil is catalyst deactivation, particularly because of the poisoning effects of metals present in crude oil, such as nickel (Ni), vanadium (V), iron (Fe), and sodium (Na). This paper reviews the typical processes of COTC, mechanisms of typical metal poisoning on catalysts, and strategies to mitigate the contamination of metals on catalysts. Additionally, this paper offers a prospective analysis of the current challenges and future development directions in this field, aiming to establish a theoretical foundation for the development of poison-resistant catalysts with industrial application potential.
期刊介绍：
Applied Catalysis A: General publishes original papers on all aspects of catalysis of basic and practical interest to chemical scientists in both industrial and academic fields, with an emphasis onnew understanding of catalysts and catalytic reactions, new catalytic materials, new techniques, and new processes, especially those that have potential practical implications.
Papers that report results of a thorough study or optimization of systems or processes that are well understood, widely studied, or minor variations of known ones are discouraged. Authors should include statements in a separate section "Justification for Publication" of how the manuscript fits the scope of the journal in the cover letter to the editors. Submissions without such justification will be rejected without review.
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