Slurry-phase hydrogenation of aromatic compounds over supported noble metal catalysts

Applied Catalysis Pub Date : 1991-10-15 DOI:10.1016/0166-9834(91)80072-5

M. Koussathana, D. Vamvouka, H. Economou, X. Verykios *

{"title":"Slurry-phase hydrogenation of aromatic compounds over supported noble metal catalysts","authors":"M. Koussathana, D. Vamvouka, H. Economou, X. Verykios *","doi":"10.1016/0166-9834(91)80072-5","DOIUrl":null,"url":null,"abstract":"<div>The hydrogenation of benzene, naphthalene and biphenyl over monometallic (Pt, Rh, Ru) and bimetallic (Pt, Rh, Ru-Pd, Ir, Re ) catalysts supported on γ-Al2O3 or TiO2 is investigated in a three-phase slurry reactor at a temperature of 300 °C and a hydrogen pressure of 66 atm. Under the conditions employed in this study, of the primary metals investigated platinum was found to possess the highest specific hydrogenation activity while biphenyl was found to be the most reactive molecule. The hydrogenation of benzene over platinum and naphthalene over platinum and rhodium were found to be structure insensitive reactions. In most cases, bimetallic formulations were found to exhibit significantly higher hydrogenation activity as compared to their monometallic counterparts. The enhancement factor was found to be larger when the bimetallic formations were supported on TiO2 as opposed to Al2O3 carriers. Bimetallic catalysts, especially those containing rhenium were also found to exhibit enhanced resistance to sulfur poisoning.</div>","PeriodicalId":8091,"journal":{"name":"Applied Catalysis","volume":"77 2","pages":"Pages 283-301"},"PeriodicalIF":0.0000,"publicationDate":"1991-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0166-9834(91)80072-5","citationCount":"41","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applied Catalysis","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0166983491800725","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 41

Abstract

The hydrogenation of benzene, naphthalene and biphenyl over monometallic (Pt, Rh, Ru) and bimetallic (Pt, Rh, Ru-Pd, Ir, Re ) catalysts supported on γ-Al₂O₃ or TiO₂ is investigated in a three-phase slurry reactor at a temperature of 300 °C and a hydrogen pressure of 66 atm. Under the conditions employed in this study, of the primary metals investigated platinum was found to possess the highest specific hydrogenation activity while biphenyl was found to be the most reactive molecule. The hydrogenation of benzene over platinum and naphthalene over platinum and rhodium were found to be structure insensitive reactions. In most cases, bimetallic formulations were found to exhibit significantly higher hydrogenation activity as compared to their monometallic counterparts. The enhancement factor was found to be larger when the bimetallic formations were supported on TiO₂ as opposed to Al₂O₃ carriers. Bimetallic catalysts, especially those containing rhenium were also found to exhibit enhanced resistance to sulfur poisoning.

查看原文本刊更多论文

负载型贵金属催化剂上芳香化合物的浆相加氢反应

在三相浆体反应器中，在温度300℃，氢气压力66 atm的条件下，研究了单金属(Pt、Rh、Ru)和双金属(Pt、Rh、Ru- pd、Ir、Re)催化剂在γ-Al2O3或TiO2负载下对苯、萘和联苯的加氢反应。在本研究所采用的条件下，在所研究的原生金属中，铂被发现具有最高的比加氢活性，而联苯被发现是最活跃的分子。苯在铂上的加氢反应和萘在铂和铑上的加氢反应是结构不敏感的反应。在大多数情况下，双金属配方被发现比它们的单金属对应物表现出明显更高的氢化活性。当双金属结构负载在TiO2上时，增强因子比负载在Al2O3载体上时更大。双金属催化剂，特别是含铼的催化剂，对硫中毒的抗性也有所增强。

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

Applied Catalysis

自引率

0.00%

发文量