生物炼制
炼油厂
可再生能源
炼油厂
生物量(生态学)
化石燃料
废物管理
可再生燃料
工艺工程
石油化工
环境科学
氢
制氢
热解
作者
M. Bampaou,K.D. Panopoulos,P. Seferlis,S. Voutetakis
出处
期刊:Energy
[Elsevier]
日期:2022-05-01
卷期号:254: 124353-124353
标识
DOI:10.1016/j.energy.2022.124353
摘要
Biomass integration into refineries allows to utilize existing infrastructures without deviating from established production routes and partially substitute fossil-with renewable-carbon. In particular, biomass after being converted by pyrolysis into bio-oil and then upgraded in the hydrotreatment section, it is inserted into existing refinery operations. Hydrogen is a key component during hydroprocessing since it is renewable and used in high excess. Reusing that unreacted hydrogen could prove beneficial for the economic viability of this scheme. An alternative hydrogen recovery technology is electrochemical compression that has the ability to recover and simultaneously compress hydrogen. The proposed biorefinery concept consists of the following subsystems: pyrolysis, hydrotreatment, gas cleaning, electrochemical hydrogen compression and PEM electrolysis. This work investigates the proposed scheme through flowsheet simulations and by determining crucial operating parameters that affect the overall economic and energetic performance. Results showed that recycling using an electrochemical compressor has significant economic and energetic benefits. Substantial cost reductions can also be attained from the economies-of-scale and by utilizing inexpensive electricity and biomass feedstocks. Overall, although the renewable hydrogen production cost surpasses that of the fossil-based, progress in the hydrogen processing techniques can further lower the expenses, transforming renewable hydrogen into a vital component for existing technologies. • A pyrolysis-based biorefinery integrating renewable hydrogen is investigated. • Electrochemical hydrogen compression is employed for hydrogen recycling. • Potential co-processing options of bio-oils in the refinery are reviewed. • Crucial operating parameters are investigated. • The proposed biorefinery scheme is economically assessed.
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