Evolution mechanisms of bio-oil from conventional and nitrogen-rich biomass during photo-thermal pyrolysis

被引：9
作者：
Huang, Dexin [1 ]
Song, Gongxiang [1 ]
Li, Ruochen [2 ]
Han, Hengda [1 ]
He, Limo [1 ,3 ]
Jiang, Long [1 ,2 ]
Wang, Yi [1 ,2 ]
Su, Sheng [1 ,2 ]
Hu, Song [1 ,2 ]
Xiang, Jun [1 ,2 ]
机构：
[1] Huazhong Univ Sci & Technol, Sch Energy & Power Engn, State Key Lab Coal Combust, Wuhan 430074, Peoples R China
[2] Huazhong Univ Sci & Technol, China EU Inst Clean & Renewable Energy, Wuhan 430074, Peoples R China
[3] Natl Univ Singapore, Fac Sci, Dept Chem, Singapore 117543, Singapore
来源：
ENERGY | 2023年 / 282卷
基金：
中国国家自然科学基金;
关键词：
Bio-oil; Pyrolysis; Photo-thermal; N-compounds; Heavy components; SOLAR PYROLYSIS; SEWAGE-SLUDGE; FUEL-N; CONVERSION; PRODUCTS; CELLULOSE; ENERGY; HUSK; TAR;
D O I：
10.1016/j.energy.2023.128813
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Photo-thermal (PT) pyrolysis has emerged as a promising technique for efficiently converting biomass into highquality bio-oil. The pyrolysis characteristics of rice straw (RS) and rapeseed cake (RC) were analyzed using a photo-thermal reactor with heating rates of 20, 200 and 500 C-degrees/min and compared with 20 C-degrees/min fixed-bed (FB) pyrolysis at 750 C-degrees. Due to the uneven temperature distribution caused by its limited heating area, fast PT heating significantly increased the presence of high molecular weight components (>650) in the bio-oil. PT pyrolysis of RS exhibited higher phenolic contents compared to FB pyrolysis, whereas RC oil showed enhanced decomposition of fatty acids through ketonization. In terms of N-compounds, PT slow pyrolysis oil contained more nitriles but fewer linear amines/amides than FB, while more cyclic amides were formed under fast PT pyrolysis. Furthermore, the analysis of heavy components revealed that more aromatic compounds with low H/C ratios were produced in fast PT pyrolysis oil. Overall, PT heating exerted dual effects by reducing secondary reactions and synergistically enhancing inner-particle reactions with fast heating. This study provides valuable insights into the mechanism of bio-oil evolution under PT pyrolysis.
引用
收藏
页数：10
相关论文
共 50 条
[21]   Photochemical reactions in five and six-membered polyheterocycles synthesis [J].
Kaur, Navjeet ;
Bhardwaj, Pranshu ;
Devi, Meenu ;
Verma, Yamini ;
Grewal, Pooja .
SYNTHETIC COMMUNICATIONS, 2019, 49 (18) :2281-2318
[22]   Nitrogen heterocycles in bio-oil produced from hydrothermal liquefaction of biomass: A review [J].
Leng, Lijian ;
Zhou, Junhui ;
Li, Tanghao ;
Vlaskin, Mikhail ;
Zhan, Hao ;
Peng, Haoyi ;
Huang, Huajun ;
Li, Hailong .
FUEL, 2023, 335
[23]   Formation mechanism of NOx precursors during the pyrolysis of 2,5-diketopiperazine based on experimental and theoretical study [J].
Liu, Ji ;
Zhao, Wei ;
Yang, Shuang-wei ;
Hu, Bin ;
Xu, Ming-xin ;
Ma, Shan-Wei ;
Lu, Qiang .
SCIENCE OF THE TOTAL ENVIRONMENT, 2021, 801
[24]   The transformation of nitrogen during pressurized entrained-flow pyrolysis of Chlorella vulgaris [J].
Maliutina, Kristina ;
Tahmasebi, Arash ;
Yu, Jianglong .
BIORESOURCE TECHNOLOGY, 2018, 262 :90-97
[25]   Top ten fundamental challenges of biomass pyrolysis for biofuels [J].
Mettler, Matthew S. ;
Vlachos, Dionisios G. ;
Dauenhauer, Paul J. .
ENERGY & ENVIRONMENTAL SCIENCE, 2012, 5 (07) :7797-7809
[26]   Solar biomass pyrolysis for the production of bio-fuels and chemical commodities [J].
Morales, Sergio ;
Miranda, Rosa ;
Bustos, Diana ;
Cazares, Thania ;
Honghi Tran .
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS, 2014, 109 :65-78
[27]   Mechanisms and kinetics of homogeneous secondary reactions of tar from continuous pyrolysis of wood chips [J].
Morf, P ;
Hasler, P ;
Nussbaumer, T .
FUEL, 2002, 81 (07) :843-853
[28]   Synthetic fuels from biomass using concentrated solar energy - A review [J].
Nzihou, Ange ;
Flamant, Gilles ;
Stanmore, Brian .
ENERGY, 2012, 42 (01) :121-131
[29]   Evolution of fuel-N in gas phase during biomass pyrolysis [J].
Ren, Qiangqiang ;
Zhao, Changsui .
RENEWABLE & SUSTAINABLE ENERGY REVIEWS, 2015, 50 :408-418
[30]   The effect of oyster shell powder and rice husk ash on the pyrolysis of rice husk for bio-oil [J].
Rong, Cheng-Xu ;
Li, Bao-Xia ;
Liu, Wei ;
Zhao, Na .
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS, 2018, 40 (11) :1291-1304
12345