A review on the stepwise processes of hydrothermal liquefaction (HTL): Recovery of nitrogen sources and upgrading of biocrude

doi:10.1016/j.fuel.2021.122671

GIEC OpenIR

	A review on the stepwise processes of hydrothermal liquefaction (HTL): Recovery of nitrogen sources and upgrading of biocrude
	Zhuang, Xiuzheng 1; Liu, Jianguo 2; Wang, Chenguang 1; Zhang, Qi2 ; Ma, Longlong2
	2022-04-01
发表期刊	FUEL
ISSN	0016-2361
卷号	313 页码:16
通讯作者	Ma, Longlong(mall@ms.giec.ac.cn)
摘要	With the rapid industrialization over the past decades, proper disposal of organic wastes has attracted scientific interest in pursuit of sustainable development and valorization. Among them possible disposal methods, hydrothermal liquefaction (HTL) is an ideal technique to treat high-moisture nitrogen (N)-containing materials. A stepwise process based on direct HTL was recently developed that exhibit a higher potential for simultaneously producing both clean biofuels and valuable chemicals by switching the role of N from "harmful" to "helpful" species. Unfortunately, although there are relevant efforts devoted to either the direct HTL of organic waste or the reuse of N sources in processed water, few studies have investigated this coupled process for comprehensive utilization. Consequently, the present review provides a systematic comparison of direct and stepwise HTL from technical and economic perspectives, where the former process serves as a foundation for the evaluation of the latter process. Regarding direct HTL, studies have focused on the transformation of various substances and their N species in aqueous systems. More attentions has been subsequently given to exploring approaches for separating the hydrolysis of protein-N in the aqueous phase and its further condensation in the oil phase through stepwise HTL, with the purposes of recycling nitrogenous chemicals and upgrading biofuels at the same time. A techno-economic analysis and the actual examples of large-scale application are also discussed to provide an objective understanding of the profitability and feasibility of the direct and stepwise HTL techniques. Finally, innovative proposals and future directions for technical improvements throughout the processing chain of stepwise HTL are presented, thereby serving as a guideline for future studies and industrial tests on the upgrading of biofuel and recovery of nutrients from N-rich organic wastes.
关键词	Organic waste Hydrothermal liquefaction Stepwise process Nitrogen recovery Clean biofuel
DOI	10.1016/j.fuel.2021.122671
关键词[WOS]	BIO-OIL PRODUCTION ; LOW-LIPID MICROALGAE ; SEWAGE-SLUDGE ; CO-LIQUEFACTION ; NUTRIENT RECOVERY ; AQUEOUS-PHASE ; LIQUID FUELS ; HIGH-PROTEIN ; WASTE-WATER ; THERMOCHEMICAL CONVERSION
收录类别	SCI
语种	英语
WOS研究方向	Energy & Fuels ; Engineering
WOS类目	Energy & Fuels ; Engineering, Chemical
WOS记录号	WOS:000766457200001
出版者	ELSEVIER SCI LTD
引用统计	被引频次：6[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/35999
专题	中国科学院广州能源研究所
通讯作者	Ma, Longlong
作者单位	1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, Guangzhou 510640, Peoples R China 2.Southeast Univ, Sch Energy & Environm, Minist Educ, Key Lab Energy Thermal Convers & Control, Nanjing 210096, Peoples R China
第一作者单位	中国科学院广州能源研究所
推荐引用方式 GB/T 7714	Zhuang, Xiuzheng,Liu, Jianguo,Wang, Chenguang,et al. A review on the stepwise processes of hydrothermal liquefaction (HTL): Recovery of nitrogen sources and upgrading of biocrude[J]. FUEL,2022,313:16.
APA	Zhuang, Xiuzheng,Liu, Jianguo,Wang, Chenguang,Zhang, Qi,&Ma, Longlong.(2022).A review on the stepwise processes of hydrothermal liquefaction (HTL): Recovery of nitrogen sources and upgrading of biocrude.FUEL,313,16.
MLA	Zhuang, Xiuzheng,et al."A review on the stepwise processes of hydrothermal liquefaction (HTL): Recovery of nitrogen sources and upgrading of biocrude".FUEL 313(2022):16.