Development of a mobile, pilot scale hydrothermal liquefaction reactor: Food waste conversion product analysis and techno-economic assessment
Development of a mobile, pilot scale hydrothermal liquefaction reactor: Food waste conversion product analysis and techno-economic assessment
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DOI：
10.1016/j.ecmx.2021.100076
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发表时间：
2021-03-31
影响因子：
6.3
通讯作者：
Zhang, Yuanhui
中科院分区：
文献类型：
--
作者：
Aierzhati, Aersi;Watson, Jamison;Zhang, Yuanhui
本工作的目的是调查的可行性，水热液化（HTL）的餐厨垃圾使用移动的中试规模的反应器，并评估其技术经济潜力，作为一种可再生能源技术，可以在未来的商业化。35 L中试规模反应器（0.15 Gal.min（-1），300 ℃和60 min保留时间）导致比实验室规模反应器更高的生物原油产率（29.5重量%对21.9重量%）。中试规模和实验室规模HTL的生物原油品质在比较元素分布、油组成和热值时显示出相似的特征。此外，技术经济评估（TEA）显示，生物原油的最低售价为每加仑汽油当量（GGE）3.48美元。比较了HTL反应器现场运行和移动的运行两种情况下原料和油品的运输成本。结果表明，移动的HTL反应器是更有利可图的食物垃圾的来源分布广泛（超过106英里）。在不同的设想方案中，试验反应器的综合结果和评估可用于评估HTL工艺在未来大规模实施中的可持续性。
The purpose of the present work is to investigate the feasibility of hydrothermal liquefaction (HTL) on food waste using a mobile pilot scale reactor and assess its techno-economic potential as a renewable energy technology that can be commercialized in the future. A 35 L pilot scale reactor (0.15 Gal.min(-1), 300 degrees C, and 60 min retention time) resulted in a higher biocrude oil yield than lab scale reactors (29.5 wt% vs 21.9 wt%). Biocrude oil qualities from pilot scale and lab scale HTL showed similar characteristics when comparing the elemental distribution, oil composition, and heating values. Further, techno-economic assessment (TEA) showed that the minimum selling price of the biocrude oil from a base case scenario was $3.48 per gallon gasoline equivalent (GGE). The transportation cost of the feedstock and oil product was compared between onsite and mobile scenarios of HTL reactor operation. The results demonstrated that the mobile HTL reactor was more profitable when the sources of food waste were widely distributed (more than 106 miles). Combined pilot reactor results and assessments in different scenarios could be used to assess the sustainability of the HTL process for future large-scale implementation.