Catalytic pyrolysis of individual components of lignocellulosic biomass

Wang, Kaige; Kim, Kwang Ho; Brown, Robert C.

doi:10.1039/c3gc41288a

Cited by 460 publications

(344 citation statements)

References 36 publications

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“…Catalytic cracking of bio-oil components converted large-molecular-mass compounds into C 1 -C 4 hydrocarbons. A high correlation between the enhanced CO production due to catalytically promoted decarbonylation and decarboxylation and increased production of aromatic hydrocarbons has been reported [19], which is in good agreement with the result of this study. Increase in the catalyst dosage (change of the biomass-to-catalyst ratio from 1:1 to 1:10) resulted in reduced CO 2 production, while the production of C 1 -C 4 hydrocarbons was enhanced.…”

Section: Resultssupporting

confidence: 82%

Catalytic Pyrolysis of Wild Reed over a Zeolite-Based Waste Catalyst

Yoo

Park

et al. 2016

Energies

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Fast catalytic pyrolysis of wild reed was carried out at 500˝C. Waste fluidized catalytic cracking (FCC) catalyst disposed from a petroleum refinery process was activated through acetone-washing and calcination and used as catalyst for pyrolysis. In order to evaluate the catalytic activity of waste FCC catalyst, commercial HY zeolite catalyst with a SiO 2 /Al 2 O 3 ratio of 5.1 was also used. The bio-oil produced from pyrolysis was analyzed using gas chromatography/mass spectrometry (GC/MS). When the biomass-to-catalyst ratio was 1:1, the production of phenolics and aromatics was promoted considerably by catalysis, whereas the content of oxygenates was affected little. Significant conversion of oxygenates to furans and aromatics was observed when the biomass-to-catalyst ratio of 1:10 was used. Activated waste FCC catalyst showed comparable catalytic activity for biomass pyrolysis to HY in terms of the promotion of valuable chemicals, such as furans, phenolics and aromatics. The results of this study imply that waste FCC catalyst can be an important economical resource for producing high-value-added chemicals from biomass.

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Section: Resultssupporting

confidence: 82%

Catalytic Pyrolysis of Wild Reed over a Zeolite-Based Waste Catalyst

Yoo

Park

et al. 2016

Energies

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“…On the other hand, an increase in the value of H 2 /CO ratio in the presence of the doped catalysts may indicate that in this case, decomposition of cellulose occurs more readily via decarboxylation than via decarbonylation route comparing to unmodified material [30].…”

Section: Resultsmentioning

confidence: 99%

Effect of alkali and alkaline earth metals addition on Ni/ZrO2 catalyst activity in cellulose conversion

Ryczkowski

Niewiadomski

Michalkiewicz

et al. 2016

J Therm Anal Calorim

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This work is devoted to the investigation of the effect of alkali and alkaline earth metals addition on Ni/ ZrO 2 catalyst activity in high-temperature cellulose conversion. The catalysts containing 20 % of Ni and 1 % of Ca, Mg, Na and K (calculated per amount of oxide) introduced on ZrO 2 surface by impregnation method were prepared. The surface properties of the investigated samples were characterized by X-ray diffraction, temperatureprogrammed reduction, flame atomic absorption spectrometry, scanning electron microscopy and energy-dispersive X-ray spectroscopy. The composition of the gaseous products was identified using gas chromatography. The performed studies demonstrated that introduction of alkali and alkaline earth metals on the surface of nickel catalyst resulted in the considerable increase in the production of hydrogen in comparison with Ni/ZrO 2 reference sample. The highest hydrogen yield was formed in the presence of the catalyst modified by calcium.

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“…Experimental results showed that the desilicated zeolites produced more aromatic hydrocarbons and less coke in the pyrolysis of beech wood than the parent microporous ZSM-5 (23.2 % aromatics and 44.4 % coke). Wang et al [101] reported the catalytic pyrolysis of switchgrass and its three main components (cellulose, hemicellulose, and lignin) over HZSM-5 catalyst and found that the yields of aromatic hydrocarbons for the three components decreased in the following order: cellulose > hemicellulose > lignin. The formation of hydrocarbon compounds increased the heating values of bio-oils while the elimination of the undesirable oxygenated compounds such as acids and ketones could alleviate the problems caused by acidity and instability of biooils [102][103].…”

Section: Catalytic Pyrolysis Of Biomassmentioning

confidence: 98%

The Efficient and Sustainable Pyrolysis and Gasification of Biomass by Catalytic Processes

Tong

Chen

et al. 2015

ChemBioEng Reviews

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The biomass thermochemical conversion process includes two major approaches: pyrolysis and gasification. The advantages of pyrolysis and gasification of biomass feedstock in the presence of various catalyst systems are critically reviewed. The role of a catalyst in pyrolysis of biomass and its major components cellulose, hemicellulose and lignin is investigated. The discussion is focused on elucidating the reaction mechanisms involved in the formation of aromatics and phenols during catalytic pyrolysis. The pyrolysis performance of two major catalyst systems, metal-containing catalysts and zeolite catalysts, is analyzed. The impact of the catalyst on the deoxygenation efficiency is ascertained. In the catalytic gasification process, two major catalyst systems including alkali metals and noble metal catalysts are employed. This review illustrates the function of the catalyst in improving the yields of syngas and hydrogen and the mechanistic aspects of the reduction of tar and char formed during gasification. Ultimately, the review is intended to introduce the state of art in the biomass thermochemical conversion with an emphasis on the importance of the catalyst in producing value-added products.

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Catalytic pyrolysis of individual components of lignocellulosic biomass

Cited by 460 publications

References 36 publications

Catalytic Pyrolysis of Wild Reed over a Zeolite-Based Waste Catalyst

Catalytic Pyrolysis of Wild Reed over a Zeolite-Based Waste Catalyst

Effect of alkali and alkaline earth metals addition on Ni/ZrO2 catalyst activity in cellulose conversion

The Efficient and Sustainable Pyrolysis and Gasification of Biomass by Catalytic Processes

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