Pyrolysis and catalytic upgrading of pine wood sawdust over modified biochar catalyst in a tandem microreactor

Chen, Xinyang1; Li, Sijie1,2; Lin, Yixi1,2; Gao, Shanshan1,4; Liu, Jin1,2; Xue, Yuan5; Gao, Xi1,2,3

2024-08-01

10.1016/j.jaap.2024.106607

JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS   影响因子和分区

0165-2370

1873-250X

A series of novel catalysts were prepared by modifying biochar (BC) with different metal loading (Fe, Zn) and thermal activation in different atmospheres (CO 2 , H 2 O). The catalysts were further used to upgrade the pyrolysis vapor from pine wood sawdust, aiming to produce high-quality bio-oil. The modified biochar catalyst exhibited strong deoxygenation ability to acids and ketones in bio-oil and effectively converted lignin-derived compounds into aromatic hydrocarbons and phenols. Subsequently, the catalyst (BC-Fe-CO 2 ) demonstrating the highest yields of phenols and aromatics was selected for condition optimization. Different catalytic temperatures and biomass-to-catalyst ratios were compared to determine the optimal conditions for producing high-quality bio-oil. Phenolics and aromatic hydrocarbons content in the bio-oil reached 70 % at the optimal condition and the selectivity of monocyclic aromatic hydrocarbons in aromatic hydrocarbons reached 77 %. The properties of the biochar catalysts were characterized using BET, SEM, XRD, and XPS. The superior performance of the modified BC catalysts not only relied on its enhanced surface area and porous structure but also due to active Fe sites. The detail reaction pathways of the bio-oil catalytic upgrading were also proposed. These findings underscore the potential of modified biochar in pyrolysis and catalytic upgrading for bio-oil with improved quality.

Catalytic pyrolysis Modified biochar Bio-oil Phenols Aromatic hydrocarbons

SCI ; EI

英语

其他

Guangdong Provincial Science and Technology Innovation Strategy Special Fund[STKJ202209056] ; Natural Science Foundation of Guangdong Province[2022A1515010763] ; National Natural Science Foundation of China["21FAA02728","52306261"]

Chemistry ; Energy & Fuels ; Engineering

Chemistry, Analytical ; Energy & Fuels ; Engineering, Chemical

WOS:001265839500001

ELSEVIER

20242716615913

Aromatic hydrocarbons ; Aromatization ; Carbon dioxide ; Catalyst activity ; Iron compounds ; Ketones ; Mineral oils ; Pyrolysis

Petroleum Products:513.3 ; Chemical Reactions:802.2 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Organic Compounds:804.1 ; Inorganic Compounds:804.2

CHEMISTRY

Web of Science

1.Guangdong Technion Israel Inst Technol, Dept Chem Engn, Shantou 515063, Peoples R China
2.Technion Israel Inst Technol, Wolfson Dept Chem Engn, IL-3200003 Haifa, Israel
3.Guangdong Technion Israel Inst Technol, Guangdong Prov Key Lab Mat & Technol Energy Conver, Shantou 515063, Peoples R China
4.Southern Univ Sci & Technol, Dept Chem, Shenzhen 518055, Peoples R China
5.Shanghai Jiao Tong Univ, China UK Low Carbon Coll, Shanghai 201306, Peoples R China

Chen, Xinyang,Li, Sijie,Lin, Yixi,et al. Pyrolysis and catalytic upgrading of pine wood sawdust over modified biochar catalyst in a tandem microreactor[J]. JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS,2024,181.

Chen, Xinyang.,Li, Sijie.,Lin, Yixi.,Gao, Shanshan.,Liu, Jin.,...&Gao, Xi.(2024).Pyrolysis and catalytic upgrading of pine wood sawdust over modified biochar catalyst in a tandem microreactor.JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS,181.

Chen, Xinyang,et al."Pyrolysis and catalytic upgrading of pine wood sawdust over modified biochar catalyst in a tandem microreactor".JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS 181(2024).