A study of guaiacol, cellulose, and Hinoki wood pyrolysis with silica, ZrO2&amp;TiO2 and ZSM-5 catalysts

Behrens, Michael; Cross, Jeffrey S.; Akasaka, Hiroki; Ohtake, Naoto

doi:10.1016/j.jaap.2017.04.004

Cited by 22 publications

(25 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Catalysts 2020, 10, x FOR PEER REVIEW 5 of 11 products consisted of sugars (48.8% ± 1.7%), ketone (17.0% ± 2.6%), furans (20.7% ± 0.7%), and acids (4.8% ± 0.2%). In this study, phenolic compounds were also found in uncatalyzed cellulose pyrolysis products, the same as other researchers have reported [21]. The other main components of the biooils derive from non-catalytic and catalytic pyrolysis of cellulose were in good agreement with the literature results [25][26][27].…”

Section: Acid%supporting

confidence: 92%

“…After comparing the different catalyst types, the results indicate that overall the catalysts do not have a strong impact on the major products of the bio-oil. The Ni2Fe3 catalyst shows the best property as a homogeneous catalysis, which could be recycled repeatedly but also increased the yield of biooil, and improved the quality of the bio-oil, especially when compared with the other catalysts that decreased the bio-oil yield, like ZSM-5, and other groups' works [21,22]. These results indicate the potential of the NiFe cluster catalysts to lower the oxygen content of bio-oil.…”

Section: Comparison Between Different Catalysts For Heterogeneous Catmentioning

confidence: 77%

“…It should be noted that the Ni2Fe3 metal catalyst usage improved the yield of bio-oil. However, other catalysts decrease the bio-oil yield typically as previous studies that used ZrO2 and TiO2 and silica have shown [21,22]. The reason for the bio-oil yield increase is attributed to differences in thermal conductivity Figure 3 shows the bio-oil, gas, and char/coke mass yields of the different catalysts.…”

Section: Comparison Among Different Catalysts For Homogeneous Catalysismentioning

confidence: 91%

See 2 more Smart Citations

Homogeneous and Heterogeneous Catalysis Impact on Pyrolyzed Cellulose to Produce Bio-Oil

Cheng

Cross

2020

Catalysts

Self Cite

View full text Add to dashboard Cite

Effectively utilizing catalytic pyrolysis to upgrade bio-oil products prepared from biomass has many potential benefits for the environment. In this paper, cellulose (a major component of plants and a biomass model compound) is pyrolyzed and catalyzed with different catalysts: Ni 2 Fe 3 , ZSM-5, and Ni 2 Fe 3 /ZSM-5. Two different pyrolysis processes are investigated to compare homogeneous and heterogeneous catalysis influence on the products. The results indicate that the Ni 2 Fe 3 cluster catalyst shows the best activity as a homogeneous catalysis. It can also be recycled repeatedly, increases the yield of bio-oil, and improves the quality of the bio-oil by decreasing the sugar concentration. Furthermore, it also catalyzes the formation of a small amount of hydrocarbon compounds. In the case of Ni 2 Fe 3 /ZSM-5 catalyst, it shows a lower yield of bio-oil but also decreases the sugar concentration significantly. Ni 2 Fe 3 , not only can it be used as homogeneous catalysis mixed with cellulose but also shows catalytic activity as a supported catalyst on ZSM-5, with higher catalytic activity than ZSM-5. These results indicate that the Ni 2 Fe 3 catalyst has significant activity for potential use in industry to produce high quality bio-oil from biomass.

show abstract

Section: Acid%supporting

confidence: 92%

Section: Comparison Between Different Catalysts For Heterogeneous Catmentioning

confidence: 77%

Section: Comparison Among Different Catalysts For Homogeneous Catalysismentioning

confidence: 91%

See 1 more Smart Citation

Homogeneous and Heterogeneous Catalysis Impact on Pyrolyzed Cellulose to Produce Bio-Oil

Cheng

Cross

2020

Catalysts

Self Cite

View full text Add to dashboard Cite

show abstract

“…The results show the maximum aromatic carbon yield of 73.87% was obtained in the work done by Zhang . Michael et al . found that guaiacol feed resulted in 85% phenolic compound.…”

Section: Resultsmentioning

confidence: 83%

“…The results show the maximum aromatic carbon yield of 73.87% was obtained in the work done by Zhang. [23] Michael et al [24] found that guaiacol feed resulted in 85% phenolic compound. Our work attempts to achieve an increase in the yield of the target product.…”

Section: The Effect Of Catalyst On the Pyrolysis Of Guaiacolmentioning

confidence: 99%

Catalytic Pyrolysis of Guaiacol over Ni/La–Modified Hierarchical HZSM‐5

Shen

Chen

et al. 2020

ChemistrySelect

View full text Add to dashboard Cite

Catalytic pyrolysis of guaiacol as a model compound of lignin was conducted to explore the lignin pyrolysis mechanism in this study. The effects of catalyst and temperature on product distribution were studied. Five catalysts were tested including HZSM‐5, hierarchical HZSM‐5, metal‐modified hierarchical HZSM‐5 catalysts. And the Ni/La bimetallic hierarchical HZSM‐5 (NiLa/HZ‐SH) contributes to the achievement of high conversion and selectivity in catalytic pyrolysis of guaiacol. we obtained the yields of monocyclic aromatic hydrocarbons over NiLa/HZ‐SH (550°C): Phenol (23.01%), Benzofuran (6.68%), Salicylaldehyde (1.54%), 2‐Methylphenol (31.48%), 4‐Methylphenol (6.54%), 2‐Ethylphenol (14.89%), 4‐Vinylphenol (1.45%) and Catechol (8.67%), and the maximal yields of these monocyclic aromatic hydrocarbons is 94.26%. Moreover, the yield of polycyclic aromatic hydrocarbons (PAH) as the non‐target product reached a minimum of 1.46% over NiLa/HZ‐SH, while it was 16.88% without catalyst. In addition, catalyst stability was investigated, the reason that led to the decrease of target products could be the acidity and surface area of catalysts decreased as the coke blocked the pore channels, spent catalyst can be successfully regenerated through calcination treatment. Finally, based on the experiment results in this work and other published studies, a guaiacol pyrolysis mechanism was summarized and proposed aiming to understand the lignin pyrolysis process.

show abstract

Biofuels and renewable chemicals production by catalytic pyrolysis of cellulose: a review

et al. 2020

View full text Add to dashboard Cite

A study of guaiacol, cellulose, and Hinoki wood pyrolysis with silica, ZrO2&TiO2 and ZSM-5 catalysts

Cited by 22 publications

References 29 publications

Homogeneous and Heterogeneous Catalysis Impact on Pyrolyzed Cellulose to Produce Bio-Oil

Homogeneous and Heterogeneous Catalysis Impact on Pyrolyzed Cellulose to Produce Bio-Oil

Catalytic Pyrolysis of Guaiacol over Ni/La–Modified Hierarchical HZSM‐5

Biofuels and renewable chemicals production by catalytic pyrolysis of cellulose: a review

Contact Info

Product

Resources

About