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A novel three-stage ex-situ catalytic pyrolysis process for improved bio-oil yield and quality from lignocellulosic biomass
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Process.
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Fibre- and Polymer Technology, Polymeric Materials.ORCID iD: 0000-0001-8476-4558
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Process.
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Process. Jiangsu Province Key Laboratory of Biomass Energy and Materials, Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry (CAF), No. 16, Suojin Five Village, Nanjing, 210042, China, No. 16, Suojin Five Village; International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, Nanjing Forestry University, Longpan Road 159, Nanjing, 210037, China, Longpan Road 159.ORCID iD: 0000-0002-0728-8671
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2024 (English)In: Energy, ISSN 0360-5442, E-ISSN 1873-6785, Vol. 295, article id 131029Article in journal (Refereed) Published
Abstract [en]

This study aims to improve the quality and yield of bio-oil produced from ex-situ catalytic pyrolysis of lignocellulosic biomass (sawdust) using a combination of stage catalysts with Al-MCM-41, HZSM-5, and ZrO2. The research employed various methods, including thermogravimetric analysis (TGA), differential scanning calorimetry, bench-scale experiments, and process simulations to analyze the kinetics, thermodynamics, products, and energy flows of the catalytic upgrading process. The introduction of ZrO2 enhances the yield of monoaromatic hydrocarbons (MAHs) in heavy organics. Compared with the dual-catalyst case, the MAHs yield escalates by approximately 344% at a catalyst ratio of 1:3:0.25. Additionally, GC-MS data indicate that the incorporation of ZrO2 promotes the deoxygenation reaction of the guaiacol compound and the oligomerization reactions of PAHs. The integration of ZrO2 as the third catalyst enhances the yield of heavy organics significantly, achieving 16.85% at a catalyst ratio of 1:3:1, which increases by nearly 35.6% compared to the dual-catalyst case. Also, the addition of ZrO2 as the third catalyst enhanced the energy distribution in heavy organics. These findings suggest that the combination of these catalysts improves the fuel properties and yields of the bio-oil.

Place, publisher, year, edition, pages
Elsevier Ltd , 2024. Vol. 295, article id 131029
Keywords [en]
Bio-oil, Process simulation, Pyrolysis, Staged catalyst, TGA
National Category
Energy Systems
Identifiers
URN: urn:nbn:se:kth:diva-344932DOI: 10.1016/j.energy.2024.131029ISI: 001224241400001Scopus ID: 2-s2.0-85188595056OAI: oai:DiVA.org:kth-344932DiVA, id: diva2:1848558
Note

QC 20240524

Available from: 2024-04-03 Created: 2024-04-03 Last updated: 2024-05-24Bibliographically approved

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Jin, YanghaoLiu, SiruiShi, ZiyiWang, ShuleWen, YumingZaini, Ilman NuranHedenqvist, Mikael S.Jönsson, PärYang, Weihong

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Jin, YanghaoLiu, SiruiShi, ZiyiWang, ShuleWen, YumingZaini, Ilman NuranHedenqvist, Mikael S.Jönsson, PärYang, Weihong
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