Abstract：
:In this study, three types of biomass were first pretreated with an aqueous phase bio-oil instead of traditional acid washing. Then, the washed samples were pretreated with drying (100 ℃, 30 min) and torrefaction (250 ℃, 30 min) using a parabolic-trough solar receiver system. The subsequent pyrolysis was performed at 550 ℃ for 10 min using a parabolic-dish solar receiver system. Results showed that the solar energy can effectively ensure the temperature required for biomass drying, torrefaction, and pyrolysis, having thus a potential to replace the conventional electric heating or fossil fuel heating. Such a strategy combines the advantages of the independent pretreatments, i.e., leaching out of metallic species and reduction of oxygen content. Consequently, the high heating value of bio-oil increased remarkably, the generation of acids was strongly inhibited, whereas the formation of phenols and anhydrosugars was promoted. Therefore, the method proposed herein is promising for upgrading of biomass and bio-oil.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Chen D,Cen K,Cao X,Zhang J,Chen F,Zhou Jdoi
10.1016/j.biortech.2020.123130subject
Has Abstractpub_date
2020-06-01 00:00:00pages
123130eissn
0960-8524issn
1873-2976pii
S0960-8524(20)30401-6journal_volume
305pub_type
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