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Hydrochar production from defective coffee beans by hydrothermal carbonization.
Bioresource Technology ( IF 9.7 ) Pub Date : 2019-12-20 , DOI: 10.1016/j.biortech.2019.122653 Mozarte Santos Santana 1 , Rafael Pereira Alves 1 , Willian Miguel da Silva Borges 1 , Elton Francisquini 1 , Mário César Guerreiro 1
Bioresource Technology ( IF 9.7 ) Pub Date : 2019-12-20 , DOI: 10.1016/j.biortech.2019.122653 Mozarte Santos Santana 1 , Rafael Pereira Alves 1 , Willian Miguel da Silva Borges 1 , Elton Francisquini 1 , Mário César Guerreiro 1
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This study aimed to produce and characterize hydrochars from defective coffee beans and its application as a solid fuel. Defective coffee beans were used as precursor residue for hydrochar synthesis. Reactions were run in a high-pressure reactor at temperatures of 150, 200 and 250 °C, under autogenesis pressure, for 40 min. Solid phase was recovered by filtration and characterized by CHNO-S analyzer, thermogravimetric analysis and differential scanning calorimetry. Hydrothermal carbonization temperature was key to change energy values and fuel properties. These results suggest hydrothermal carbonization is an effective and simple strategy for converting coffee waste into functional, high-quality, and energy-dense solid biofuels.
中文翻译：
通过水热碳化从有缺陷的咖啡豆生产水炭。
这项研究旨在从有缺陷的咖啡豆中生产并鉴定水炭，并将其用作固体燃料。有缺陷的咖啡豆被用作水炭合成的前体残留物。反应在自生压力下于150、200和250°C的高压反应器中进行40分钟。通过过滤回收固相，并通过CHNO-S分析仪，热重分析和差示扫描量热法进行表征。水热碳化温度是改变能量值和燃料特性的关键。这些结果表明，水热碳化是一种有效且简单的策略，可将咖啡废物转化为功能性，高质量和高能量密度的固体生物燃料。
更新日期：2019-12-20
中文翻译：
通过水热碳化从有缺陷的咖啡豆生产水炭。
这项研究旨在从有缺陷的咖啡豆中生产并鉴定水炭，并将其用作固体燃料。有缺陷的咖啡豆被用作水炭合成的前体残留物。反应在自生压力下于150、200和250°C的高压反应器中进行40分钟。通过过滤回收固相，并通过CHNO-S分析仪，热重分析和差示扫描量热法进行表征。水热碳化温度是改变能量值和燃料特性的关键。这些结果表明，水热碳化是一种有效且简单的策略，可将咖啡废物转化为功能性，高质量和高能量密度的固体生物燃料。
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