{"title":"从柴油中现场生产富氢气体：以氧化铝为载体的镍和多种金属氧化物（MgO、La2O3、CeO2、SiO2）催化剂开发综合研究","authors":"","doi":"10.1016/j.apcata.2024.119940","DOIUrl":null,"url":null,"abstract":"<div><p>The study aimed to investigate the impact of nickel-incorporating diverse metal oxides (MgO, La<sub>2</sub>O<sub>3</sub>, CeO<sub>2</sub>, SiO<sub>2</sub>) supported on alumina on the Diesel steam reforming reaction. Catalytic activity tests were performed within a reaction period of 6 h at 800°C and atmospheric pressure. The amount of catalyst is 30 gr in each experiment corresponding to a LHSV value of 0.2 hr<sup>−1</sup>. The tests proved that the performances of Ni-containing La<sub>2</sub>O<sub>3</sub> and CeO<sub>2</sub>-supported catalysts were highly stable and active in steam reforming of Diesel, giving complete conversion. The incorporation of CeO<sub>2</sub> (20 % wt) into Al<sub>2</sub>O<sub>3</sub> support resulted in a significant reduction in the amount of coke formation from 0.85 % to 0.26 %. In order to investigate catalyst stability, time-on stream tests extending to 6 days, totaling 36 hours were performed using 5Ni@10La<sub>2</sub>O<sub>3</sub>-Al<sub>2</sub>O<sub>3</sub>. As a result of the long-term stability test, no deactivation has been observed under the test conditions despite very few amounts of carbon (1.33 wt%) formed. When comparing the short-term and long-term tests, similar syn-gas production results were observed, along with approximately the same amount of carbon formation.</p></div>","PeriodicalId":243,"journal":{"name":"Applied Catalysis A: General","volume":null,"pages":null},"PeriodicalIF":4.7000,"publicationDate":"2024-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"On-site hydrogen-rich gas production from diesel: A comprehensive study on catalyst development with nickel and diverse metal oxides (MgO, La2O3, CeO2, SiO2) supported on alumina\",\"authors\":\"\",\"doi\":\"10.1016/j.apcata.2024.119940\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The study aimed to investigate the impact of nickel-incorporating diverse metal oxides (MgO, La<sub>2</sub>O<sub>3</sub>, CeO<sub>2</sub>, SiO<sub>2</sub>) supported on alumina on the Diesel steam reforming reaction. Catalytic activity tests were performed within a reaction period of 6 h at 800°C and atmospheric pressure. The amount of catalyst is 30 gr in each experiment corresponding to a LHSV value of 0.2 hr<sup>−1</sup>. The tests proved that the performances of Ni-containing La<sub>2</sub>O<sub>3</sub> and CeO<sub>2</sub>-supported catalysts were highly stable and active in steam reforming of Diesel, giving complete conversion. The incorporation of CeO<sub>2</sub> (20 % wt) into Al<sub>2</sub>O<sub>3</sub> support resulted in a significant reduction in the amount of coke formation from 0.85 % to 0.26 %. In order to investigate catalyst stability, time-on stream tests extending to 6 days, totaling 36 hours were performed using 5Ni@10La<sub>2</sub>O<sub>3</sub>-Al<sub>2</sub>O<sub>3</sub>. As a result of the long-term stability test, no deactivation has been observed under the test conditions despite very few amounts of carbon (1.33 wt%) formed. When comparing the short-term and long-term tests, similar syn-gas production results were observed, along with approximately the same amount of carbon formation.</p></div>\",\"PeriodicalId\":243,\"journal\":{\"name\":\"Applied Catalysis A: General\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":4.7000,\"publicationDate\":\"2024-08-31\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Applied Catalysis A: General\",\"FirstCategoryId\":\"1\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0926860X24003855\",\"RegionNum\":2,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applied Catalysis A: General","FirstCategoryId":"1","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0926860X24003855","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
On-site hydrogen-rich gas production from diesel: A comprehensive study on catalyst development with nickel and diverse metal oxides (MgO, La2O3, CeO2, SiO2) supported on alumina
The study aimed to investigate the impact of nickel-incorporating diverse metal oxides (MgO, La2O3, CeO2, SiO2) supported on alumina on the Diesel steam reforming reaction. Catalytic activity tests were performed within a reaction period of 6 h at 800°C and atmospheric pressure. The amount of catalyst is 30 gr in each experiment corresponding to a LHSV value of 0.2 hr−1. The tests proved that the performances of Ni-containing La2O3 and CeO2-supported catalysts were highly stable and active in steam reforming of Diesel, giving complete conversion. The incorporation of CeO2 (20 % wt) into Al2O3 support resulted in a significant reduction in the amount of coke formation from 0.85 % to 0.26 %. In order to investigate catalyst stability, time-on stream tests extending to 6 days, totaling 36 hours were performed using 5Ni@10La2O3-Al2O3. As a result of the long-term stability test, no deactivation has been observed under the test conditions despite very few amounts of carbon (1.33 wt%) formed. When comparing the short-term and long-term tests, similar syn-gas production results were observed, along with approximately the same amount of carbon formation.
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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