{"title":"使用木炭和木炭支撑铁催化剂催化生物质蒸汽气化制氢","authors":"Yan Cao , Yu Bai , Jiang Du","doi":"10.1016/j.joei.2025.102031","DOIUrl":null,"url":null,"abstract":"<div><div>Char derived from the pyrolysis of carbon-based fuels, such as biomass and coal, has been widely used as a support material. In this study, biochar, coalchar, biochar-supported Fe (Fe/B) and coalchar-supported Fe (Fe/C) were prepared for tar cracking and H<sub>2</sub> enhancement during wood chips gasification. All experiments were conducted in a fluidized bed gasification system using steam as the gasification agent. The results revealed that the effectiveness of each catalyst in removing tar is ranked as follows: biochar < coalchar < Fe/B < Fe/C. The highest H<sub>2</sub> content (49.2 vol%) was also obtained at 800 <sup>°</sup>C and in the presence of 6 wt% Fe/C as catalyst. Tar cracking improved significantly with increasing Fe content from 0 to 6.0 wt%, but showed little further improvement beyond 6.0 wt% Fe content. The results indicated that adding steam had minimal effect on the tar content in the gas produced from the gasification of wood chips using the Fe/C catalyst. However, raising the gasifier temperature from 700 to 850 <sup>°</sup>C led to a significant reduction in tar yield. This reduction is attributed to the promotion of cracking and reforming reactions during the gasification process. This work showed that the char composition significantly influences its catalytic performance regarding tar reduction and H<sub>2</sub> enhancement.</div></div>","PeriodicalId":17287,"journal":{"name":"Journal of The Energy Institute","volume":"120 ","pages":"Article 102031"},"PeriodicalIF":5.6000,"publicationDate":"2025-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Hydrogen production from catalytic steam-gasification of biomass using char and char-supported iron catalysts\",\"authors\":\"Yan Cao , Yu Bai , Jiang Du\",\"doi\":\"10.1016/j.joei.2025.102031\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Char derived from the pyrolysis of carbon-based fuels, such as biomass and coal, has been widely used as a support material. In this study, biochar, coalchar, biochar-supported Fe (Fe/B) and coalchar-supported Fe (Fe/C) were prepared for tar cracking and H<sub>2</sub> enhancement during wood chips gasification. All experiments were conducted in a fluidized bed gasification system using steam as the gasification agent. The results revealed that the effectiveness of each catalyst in removing tar is ranked as follows: biochar < coalchar < Fe/B < Fe/C. The highest H<sub>2</sub> content (49.2 vol%) was also obtained at 800 <sup>°</sup>C and in the presence of 6 wt% Fe/C as catalyst. Tar cracking improved significantly with increasing Fe content from 0 to 6.0 wt%, but showed little further improvement beyond 6.0 wt% Fe content. The results indicated that adding steam had minimal effect on the tar content in the gas produced from the gasification of wood chips using the Fe/C catalyst. However, raising the gasifier temperature from 700 to 850 <sup>°</sup>C led to a significant reduction in tar yield. This reduction is attributed to the promotion of cracking and reforming reactions during the gasification process. This work showed that the char composition significantly influences its catalytic performance regarding tar reduction and H<sub>2</sub> enhancement.</div></div>\",\"PeriodicalId\":17287,\"journal\":{\"name\":\"Journal of The Energy Institute\",\"volume\":\"120 \",\"pages\":\"Article 102031\"},\"PeriodicalIF\":5.6000,\"publicationDate\":\"2025-02-15\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of The Energy Institute\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1743967125000595\",\"RegionNum\":2,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ENERGY & FUELS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of The Energy Institute","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1743967125000595","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENERGY & FUELS","Score":null,"Total":0}
Hydrogen production from catalytic steam-gasification of biomass using char and char-supported iron catalysts
Char derived from the pyrolysis of carbon-based fuels, such as biomass and coal, has been widely used as a support material. In this study, biochar, coalchar, biochar-supported Fe (Fe/B) and coalchar-supported Fe (Fe/C) were prepared for tar cracking and H2 enhancement during wood chips gasification. All experiments were conducted in a fluidized bed gasification system using steam as the gasification agent. The results revealed that the effectiveness of each catalyst in removing tar is ranked as follows: biochar < coalchar < Fe/B < Fe/C. The highest H2 content (49.2 vol%) was also obtained at 800 °C and in the presence of 6 wt% Fe/C as catalyst. Tar cracking improved significantly with increasing Fe content from 0 to 6.0 wt%, but showed little further improvement beyond 6.0 wt% Fe content. The results indicated that adding steam had minimal effect on the tar content in the gas produced from the gasification of wood chips using the Fe/C catalyst. However, raising the gasifier temperature from 700 to 850 °C led to a significant reduction in tar yield. This reduction is attributed to the promotion of cracking and reforming reactions during the gasification process. This work showed that the char composition significantly influences its catalytic performance regarding tar reduction and H2 enhancement.
期刊介绍:
The Journal of the Energy Institute provides peer reviewed coverage of original high quality research on energy, engineering and technology.The coverage is broad and the main areas of interest include:
Combustion engineering and associated technologies; process heating; power generation; engines and propulsion; emissions and environmental pollution control; clean coal technologies; carbon abatement technologies
Emissions and environmental pollution control; safety and hazards;
Clean coal technologies; carbon abatement technologies, including carbon capture and storage, CCS;
Petroleum engineering and fuel quality, including storage and transport
Alternative energy sources; biomass utilisation and biomass conversion technologies; energy from waste, incineration and recycling
Energy conversion, energy recovery and energy efficiency; space heating, fuel cells, heat pumps and cooling systems
Energy storage
The journal''s coverage reflects changes in energy technology that result from the transition to more efficient energy production and end use together with reduced carbon emission.