Juliana Petrocchi Rodrigues , Grace F. Ghesti , Edgar A. Silveira , Giulia Cruz Lamas , Ricardo Ferreira , M. Costa
{"title":"通过二氧化碳/蒸汽强化气化废咖啡渣将废物转化为氢","authors":"Juliana Petrocchi Rodrigues , Grace F. Ghesti , Edgar A. Silveira , Giulia Cruz Lamas , Ricardo Ferreira , M. Costa","doi":"10.1016/j.clce.2022.100082","DOIUrl":null,"url":null,"abstract":"<div><p>This paper evaluated steam and CO<sub>2</sub>-enhanced gasification of spent coffee ground (SCG) biomass, including energy and exergy aspects focusing on hydrogen production. The waste-to-hydrogen (WTH) conversion was performed via gasification (1000 °C) with a drop-tube-reactor investigating six different steam to biomass (SBR of 0.5, 0.8 and 1.2) and CO<sub>2</sub> to biomass (CO<sub>2</sub>BR 0.09, 0.18 and 0.27) ratios. The syngas production indicated clear improvement against O<sub>2</sub>/N<sub>2</sub> with an H<sub>2</sub> yield increase up to 69.21% and 18.32% for steam and CO<sub>2</sub> mediums. The energy and exergy analysis points out the 0.8 SBR as the optimum condition with 210% CGE and 48.05% exergy efficiency for H<sub>2</sub> production. As a strategy for carbon capture and usage, the medium with 0.27 CO<sub>2</sub>BR provided a 28.52% exergy efficiency for H<sub>2</sub> production and reduced soot formation, showing a potential gasification medium for SCG. Results encourage waste-to-hydrogen prospection within circular economy principles, boosting circular economy principles in urban districts.</p></div>","PeriodicalId":100251,"journal":{"name":"Cleaner Chemical Engineering","volume":"4 ","pages":"Article 100082"},"PeriodicalIF":0.0000,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772782322000808/pdfft?md5=6f8731f61f182c1b853cf8bae3485d5d&pid=1-s2.0-S2772782322000808-main.pdf","citationCount":"5","resultStr":"{\"title\":\"Waste-to-hydrogen via CO2/steam-enhanced gasification of spent coffee ground\",\"authors\":\"Juliana Petrocchi Rodrigues , Grace F. Ghesti , Edgar A. Silveira , Giulia Cruz Lamas , Ricardo Ferreira , M. Costa\",\"doi\":\"10.1016/j.clce.2022.100082\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>This paper evaluated steam and CO<sub>2</sub>-enhanced gasification of spent coffee ground (SCG) biomass, including energy and exergy aspects focusing on hydrogen production. The waste-to-hydrogen (WTH) conversion was performed via gasification (1000 °C) with a drop-tube-reactor investigating six different steam to biomass (SBR of 0.5, 0.8 and 1.2) and CO<sub>2</sub> to biomass (CO<sub>2</sub>BR 0.09, 0.18 and 0.27) ratios. The syngas production indicated clear improvement against O<sub>2</sub>/N<sub>2</sub> with an H<sub>2</sub> yield increase up to 69.21% and 18.32% for steam and CO<sub>2</sub> mediums. The energy and exergy analysis points out the 0.8 SBR as the optimum condition with 210% CGE and 48.05% exergy efficiency for H<sub>2</sub> production. As a strategy for carbon capture and usage, the medium with 0.27 CO<sub>2</sub>BR provided a 28.52% exergy efficiency for H<sub>2</sub> production and reduced soot formation, showing a potential gasification medium for SCG. Results encourage waste-to-hydrogen prospection within circular economy principles, boosting circular economy principles in urban districts.</p></div>\",\"PeriodicalId\":100251,\"journal\":{\"name\":\"Cleaner Chemical Engineering\",\"volume\":\"4 \",\"pages\":\"Article 100082\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2022-12-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.sciencedirect.com/science/article/pii/S2772782322000808/pdfft?md5=6f8731f61f182c1b853cf8bae3485d5d&pid=1-s2.0-S2772782322000808-main.pdf\",\"citationCount\":\"5\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Cleaner Chemical Engineering\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2772782322000808\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Cleaner Chemical Engineering","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2772782322000808","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Waste-to-hydrogen via CO2/steam-enhanced gasification of spent coffee ground
This paper evaluated steam and CO2-enhanced gasification of spent coffee ground (SCG) biomass, including energy and exergy aspects focusing on hydrogen production. The waste-to-hydrogen (WTH) conversion was performed via gasification (1000 °C) with a drop-tube-reactor investigating six different steam to biomass (SBR of 0.5, 0.8 and 1.2) and CO2 to biomass (CO2BR 0.09, 0.18 and 0.27) ratios. The syngas production indicated clear improvement against O2/N2 with an H2 yield increase up to 69.21% and 18.32% for steam and CO2 mediums. The energy and exergy analysis points out the 0.8 SBR as the optimum condition with 210% CGE and 48.05% exergy efficiency for H2 production. As a strategy for carbon capture and usage, the medium with 0.27 CO2BR provided a 28.52% exergy efficiency for H2 production and reduced soot formation, showing a potential gasification medium for SCG. Results encourage waste-to-hydrogen prospection within circular economy principles, boosting circular economy principles in urban districts.
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