{"title":"在 40Ni0.75(Ce1-xFex)0.25/Al2O3 催化剂上干重整碳氢化合物(甲烷、乙烷和丙烷):比较研究","authors":"Akanksha Singh Rajput and Taraknath Das","doi":"10.1039/D4SE00467A","DOIUrl":null,"url":null,"abstract":"<p >Reports of dry reforming of methane, ethane, and propane to synthesis gas using the same catalyst are very limited in the open literature. The present study is basically a comparative analysis of methane, ethane and propane for dry reforming reaction considering the catalyst 40Ni<small><sub>0.75</sub></small>(Ce<small><sub>0.75</sub></small>Fe<small><sub>0.25</sub></small>)<small><sub>0.25</sub></small>/Al<small><sub>2</sub></small>O<small><sub>3</sub></small> and under similar operating conditions. A series of catalysts denoted as 40Ni<small><sub>0.75</sub></small>(Ce<small><sub>1−<em>x</em></sub></small>Fe<small><sub><em>x</em></sub></small>)<small><sub>0.25</sub></small>/Al<small><sub>2</sub></small>O<small><sub>3</sub></small> (where <em>x</em> = 0, 0.25, 0.5, 0.75, 1) were synthesized <em>via</em> the sol–gel method, and their catalytic efficacy was assessed for the dry reforming of aliphatic saturated hydrocarbons (methane, ethane, and propane). Comprehensive catalyst characterization resulted through the BET, XRD, H<small><sub>2</sub></small>-TPR, CO<small><sub>2</sub></small>-TPD, Raman spectroscopy, TGA, and FE-SEM analyses. The study revealed that the Ni–Ce species were effectively dispersed over the alumina support. The robust interactions between the nickel and the support significantly enhanced the nickel dispersion and stability. In addition to syngas, the formation of CNTs was also witnessed on the used catalyst's surface, a finding substantiated through FE-SEM and Raman spectral analysis. In the dry reforming of methane (DRM), CO<small><sub>2</sub></small> exhibited superior conversion compared to methane, whereas in the dry reforming of ethane (DRE) and propane (DRP), the conversion of ethane and propane, respectively, was predominant. The incorporation of a minimal iron fraction into the catalyst exhibited pronounced enhancements in catalytic performance, with the catalyst containing ceria–iron (<em>x</em> = 0.25) manifesting the highest product yield and conversion percentages (HC and CO<small><sub>2</sub></small>).</p>","PeriodicalId":104,"journal":{"name":"Sustainable Energy & Fuels","volume":null,"pages":null},"PeriodicalIF":5.0000,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Dry reforming of HCs (methane, ethane, and propane) over a 40Ni0.75(Ce1−xFex)0.25/Al2O3 catalyst: a comparative study†\",\"authors\":\"Akanksha Singh Rajput and Taraknath Das\",\"doi\":\"10.1039/D4SE00467A\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p >Reports of dry reforming of methane, ethane, and propane to synthesis gas using the same catalyst are very limited in the open literature. The present study is basically a comparative analysis of methane, ethane and propane for dry reforming reaction considering the catalyst 40Ni<small><sub>0.75</sub></small>(Ce<small><sub>0.75</sub></small>Fe<small><sub>0.25</sub></small>)<small><sub>0.25</sub></small>/Al<small><sub>2</sub></small>O<small><sub>3</sub></small> and under similar operating conditions. A series of catalysts denoted as 40Ni<small><sub>0.75</sub></small>(Ce<small><sub>1−<em>x</em></sub></small>Fe<small><sub><em>x</em></sub></small>)<small><sub>0.25</sub></small>/Al<small><sub>2</sub></small>O<small><sub>3</sub></small> (where <em>x</em> = 0, 0.25, 0.5, 0.75, 1) were synthesized <em>via</em> the sol–gel method, and their catalytic efficacy was assessed for the dry reforming of aliphatic saturated hydrocarbons (methane, ethane, and propane). Comprehensive catalyst characterization resulted through the BET, XRD, H<small><sub>2</sub></small>-TPR, CO<small><sub>2</sub></small>-TPD, Raman spectroscopy, TGA, and FE-SEM analyses. The study revealed that the Ni–Ce species were effectively dispersed over the alumina support. The robust interactions between the nickel and the support significantly enhanced the nickel dispersion and stability. In addition to syngas, the formation of CNTs was also witnessed on the used catalyst's surface, a finding substantiated through FE-SEM and Raman spectral analysis. In the dry reforming of methane (DRM), CO<small><sub>2</sub></small> exhibited superior conversion compared to methane, whereas in the dry reforming of ethane (DRE) and propane (DRP), the conversion of ethane and propane, respectively, was predominant. The incorporation of a minimal iron fraction into the catalyst exhibited pronounced enhancements in catalytic performance, with the catalyst containing ceria–iron (<em>x</em> = 0.25) manifesting the highest product yield and conversion percentages (HC and CO<small><sub>2</sub></small>).</p>\",\"PeriodicalId\":104,\"journal\":{\"name\":\"Sustainable Energy & Fuels\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":5.0000,\"publicationDate\":\"2024-06-14\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Sustainable Energy & Fuels\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://pubs.rsc.org/en/content/articlelanding/2024/se/d4se00467a\",\"RegionNum\":3,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Sustainable Energy & Fuels","FirstCategoryId":"88","ListUrlMain":"https://pubs.rsc.org/en/content/articlelanding/2024/se/d4se00467a","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Dry reforming of HCs (methane, ethane, and propane) over a 40Ni0.75(Ce1−xFex)0.25/Al2O3 catalyst: a comparative study†
Reports of dry reforming of methane, ethane, and propane to synthesis gas using the same catalyst are very limited in the open literature. The present study is basically a comparative analysis of methane, ethane and propane for dry reforming reaction considering the catalyst 40Ni0.75(Ce0.75Fe0.25)0.25/Al2O3 and under similar operating conditions. A series of catalysts denoted as 40Ni0.75(Ce1−xFex)0.25/Al2O3 (where x = 0, 0.25, 0.5, 0.75, 1) were synthesized via the sol–gel method, and their catalytic efficacy was assessed for the dry reforming of aliphatic saturated hydrocarbons (methane, ethane, and propane). Comprehensive catalyst characterization resulted through the BET, XRD, H2-TPR, CO2-TPD, Raman spectroscopy, TGA, and FE-SEM analyses. The study revealed that the Ni–Ce species were effectively dispersed over the alumina support. The robust interactions between the nickel and the support significantly enhanced the nickel dispersion and stability. In addition to syngas, the formation of CNTs was also witnessed on the used catalyst's surface, a finding substantiated through FE-SEM and Raman spectral analysis. In the dry reforming of methane (DRM), CO2 exhibited superior conversion compared to methane, whereas in the dry reforming of ethane (DRE) and propane (DRP), the conversion of ethane and propane, respectively, was predominant. The incorporation of a minimal iron fraction into the catalyst exhibited pronounced enhancements in catalytic performance, with the catalyst containing ceria–iron (x = 0.25) manifesting the highest product yield and conversion percentages (HC and CO2).
期刊介绍:
Sustainable Energy & Fuels will publish research that contributes to the development of sustainable energy technologies with a particular emphasis on new and next-generation technologies.