Efficient Synthesis of Nickel-Molybdenum/USY-Zeolite Catalyst for Eliminating Impurities (N, S, and Cl) in the Waste Plastic Pyrolysis Oil: Dispersion Effect of Active Sites by Surfactant-Assisted Melt-Infiltration

IF 3.8 3区化学 Q2 CHEMISTRY, PHYSICAL

Catalysts Pub Date : 2023-11-28 DOI:10.3390/catal13121476

Eui Hyun Cho, Ki-Duk Kim, Byung Sun Yoon, Eunkyung Cho, Yeon Jeong Yu, T. Phan, Sang-Goo Jeon, Chang Hyun Ko

{"title":"Efficient Synthesis of Nickel-Molybdenum/USY-Zeolite Catalyst for Eliminating Impurities (N, S, and Cl) in the Waste Plastic Pyrolysis Oil: Dispersion Effect of Active Sites by Surfactant-Assisted Melt-Infiltration","authors":"Eui Hyun Cho, Ki-Duk Kim, Byung Sun Yoon, Eunkyung Cho, Yeon Jeong Yu, T. Phan, Sang-Goo Jeon, Chang Hyun Ko","doi":"10.3390/catal13121476","DOIUrl":null,"url":null,"abstract":"The upgrading of waste plastic pyrolysis oil (WPPO) through hydrotreating (HDT) is crucial for transforming plastic waste into chemical feedstock. The catalytic role of HDT is of paramount importance for this conversion procedure. In this study, bimetallic catalysts based on Ni and Mo were prepared using the surfactant-assisted melt-infiltration (SAMI) method, completely omitting the use of liquid solutions. Thorough analysis via X-ray diffraction, transmission electron microscopy, and hydrogen temperature-programmed reduction confirmed that the addition of Span60 surfactant effectively prevented the aggregation of Ni and Mo components, reduced the size of metal particles, and improved the dispersion of active sites on the zeolite supports. Consequently, NiMo-based catalysts incorporating Span60, synthesized using the SAMI method, exhibited a superior catalytic performance in the removal of nitrogen, sulfur, and chloride impurities from WPPO during HDT compared to those without surfactant. Specifically, the catalyst prepared with Span60 exhibited 15% higher nitrogen conversion compared to the catalyst prepared without Span60.","PeriodicalId":9794,"journal":{"name":"Catalysts","volume":"151 1","pages":""},"PeriodicalIF":3.8000,"publicationDate":"2023-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Catalysts","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.3390/catal13121476","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}

引用次数: 0

Abstract

The upgrading of waste plastic pyrolysis oil (WPPO) through hydrotreating (HDT) is crucial for transforming plastic waste into chemical feedstock. The catalytic role of HDT is of paramount importance for this conversion procedure. In this study, bimetallic catalysts based on Ni and Mo were prepared using the surfactant-assisted melt-infiltration (SAMI) method, completely omitting the use of liquid solutions. Thorough analysis via X-ray diffraction, transmission electron microscopy, and hydrogen temperature-programmed reduction confirmed that the addition of Span60 surfactant effectively prevented the aggregation of Ni and Mo components, reduced the size of metal particles, and improved the dispersion of active sites on the zeolite supports. Consequently, NiMo-based catalysts incorporating Span60, synthesized using the SAMI method, exhibited a superior catalytic performance in the removal of nitrogen, sulfur, and chloride impurities from WPPO during HDT compared to those without surfactant. Specifically, the catalyst prepared with Span60 exhibited 15% higher nitrogen conversion compared to the catalyst prepared without Span60.

查看原文本刊更多论文

用于消除废塑料热解油中杂质（N、S 和 Cl）的镍钼/USY-沸石催化剂的高效合成：表面活性剂辅助熔融渗透对活性位点的分散作用

通过加氢处理（HDT）对废塑料热解油（WPPO）进行升级是将废塑料转化为化学原料的关键。加氢脱硫的催化作用对这一转化过程至关重要。本研究采用表面活性剂辅助熔融渗透（SAMI）法制备了基于 Ni 和 Mo 的双金属催化剂，完全避免了使用液态溶液。通过 X 射线衍射、透射电子显微镜和氢温编程还原进行的全面分析证实，添加 Span60 表面活性剂可有效防止镍和钼成分的聚集，减小金属颗粒的尺寸，并改善活性位点在沸石载体上的分散。因此，与不添加表面活性剂的催化剂相比，采用 SAMI 方法合成的添加了 Span60 的镍钼基催化剂在 HDT 过程中去除 WPPO 中的氮、硫和氯杂质方面表现出更优越的催化性能。具体而言，与不含 Span60 的催化剂相比，含 Span60 的催化剂的氮转化率高出 15%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Catalysts CHEMISTRY, PHYSICAL-

CiteScore

6.80

自引率

7.70%

发文量

1330

审稿时长

3 months

期刊介绍： Catalysts (ISSN 2073-4344) is an international open access journal of catalysts and catalyzed reactions. Catalysts publishes reviews, regular research papers (articles) and short communications. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. Therefore, there is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced.