Study on synergistic catalytic characteristics of metal catalysts and composite molecular sieves

被引：0
|
作者：
Fu J. [1 ]
Zhong Z. [1 ]
Wu W. [1 ]
机构：
[1] Key Laboratory of Energy Thermal Conversion and Control, Ministry of Education, School of Energy and Environment, Southeast University, Nanjing
来源：
Taiyangneng Xuebao/Acta Energiae Solaris Sinica | 2021年 / 42卷 / 11期
关键词：
Biomass; Composite molecular sieve; Hydrocarbons; Metallic catalyst; Pyrolysis;
D O I：
10.19912/j.0254-0096.tynxb.2019-1139
中图分类号：
学科分类号：
摘要：
Due to the problems like high oxygen content and low calorific value of bio-oil produced by biomass pyrolysis, a new method of synergistic catalysis between metal catalysts and composite molecular sieve HZSM-5/MCM-41(HM) was proposed. The effects of metal catalysts and HM on the pyrolysis product distribution of bamboo chips were investigated in Py-GC/MS and catalytic pyrolysis reforming system respectively. The results showed that the metal catalysts are beneficial to the reduction of oxygen content and the improvement of bio-oil quality in the single-stage catalytic mode. In the two-stage catalytic mode, the introduction of HM further reduces the oxygen content of bio-oil and significantly increases the hydrocarbon yield up to 66.11%. meanwhile the selectivity of monocyclic aromatic hydrocarbons is 66.87%. In addition, the aromatization ability of HM is enhanced by the addition of Fe, and the relative contents of aldehydes and ketones are further reduced, which promotes the secondary cracking of oligomers. The selectivity of monocyclic aromatic hydrocarbons is improved and the highest hydrocarbon yield of 40.25% is obtained. The synergistic effect is more obvious and equips application potential. © 2021, Solar Energy Periodical Office Co., Ltd. All right reserved.
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页码：379 / 386
页数：7
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