Catalytic Oligomerization of Isobutyl Alcohol to Hydrocarbon Liquid Fuels over Acidic Zeolite Catalysts

2020 ◽  
Vol 5 (2) ◽  
pp. 528-532 ◽  
Author(s):  
Xiaoyu Guo ◽  
Lisheng Guo ◽  
Yuichi Suzuki ◽  
Jinhu Wu ◽  
Yoshiharu Yoneyama ◽  
...  
Energy ◽  
2020 ◽  
Vol 207 ◽  
pp. 118317
Author(s):  
Marta Díaz ◽  
Eva Epelde ◽  
Zuria Tabernilla ◽  
Ainara Ateka ◽  
Andrés T. Aguayo ◽  
...  

Chemosphere ◽  
2013 ◽  
Vol 93 (4) ◽  
pp. 652-660 ◽  
Author(s):  
Xingmin Xu ◽  
Changsen Zhang ◽  
Yonggang Liu ◽  
Yunpu Zhai ◽  
Ruiqin Zhang

Catalysts ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. 42 ◽  
Author(s):  
James M. Crawford ◽  
Courtney S. Smoljan ◽  
Jolie Lucero ◽  
Moises A. Carreon

For the production of sustainable biofuels from lipid biomass it is essential to develop non-noble metal catalysts with high conversion and selectivity under inert gas atmospheres. Herein, we report a novel cobalt-based catalyst supported on zeolite NaX via ion-exchange synthesis. The resultant bifunctional cobalt-based NaX zeolite catalyst displayed high conversion of stearic acid to liquid fuels. In addition, the effect of reaction temperature and catalyst loading was studied to evaluate the order of reaction and activation energy. Decarboxylation and decarbonylation were the dominant deoxygenation pathways. Stearic acid was successfully deoxygenated in N2 atmospheres using Co/NaX catalysts with a conversion as high as 83.7% and a yield to heptadecane up to ~28%. Furthermore, we demonstrate that higher reaction temperatures resulted in competing pathways of decarboxylation and decarbonylation. Finally, the fresh and recycled catalysts were characterized showing modest recyclability with a ~12.5% loss in catalytic activity.


Author(s):  
Moinuddin Sarker ◽  
Mohammad Mamunor Rashid ◽  
Mohammed Molla

2020 ◽  
Vol 132 ◽  
pp. 105432 ◽  
Author(s):  
Riyang Shu ◽  
Rongxuan Li ◽  
Biqin Lin ◽  
Chao Wang ◽  
Zhengdong Cheng ◽  
...  

2020 ◽  
Vol 22 (21) ◽  
pp. 7406-7416
Author(s):  
Simin Li ◽  
Baoyuan Liu ◽  
Julianne Truong ◽  
Zhongyang Luo ◽  
Peter C. Ford ◽  
...  

A physical mixture of Ru/C and Nb2O5 is an effective catalyst for upgrading lignin monomers under low H2 pressure at 250 °C to a clean cut of hydrocarbon liquid fuels.


Catalysts ◽  
2018 ◽  
Vol 8 (8) ◽  
pp. 298 ◽  
Author(s):  
Lei Zhang ◽  
Ming Ke ◽  
Zhaozheng Song ◽  
Yang Liu ◽  
Wenbo Shan ◽  
...  

Oligomerization of light olefin is an effective method to produce plentiful liquid fuels. However, oligomerization processes using microporous zeolites have severe problems due to steric hindrance. In this paper, oligomerization of butene using a series of new types of hierarchical HZSM-5 zeolite catalysts is studied. To obtain the modified HZSM-5 catalysts, HZSM-5 is treated with the same concentration of LiOH, NaOH, KOH, and CsOH aqueous solutions, respectively. It is demonstrated that the alkali treatment can effectively modify the acidity properties and hierarchical structure of the HZSM-5 catalyst, which is confirmed by X-ray Diffraction (XRD), X-ray Fluorescence (XRF), Nitrogen Adsorption-desorption Measurements, Transmission Electron Microscopy Investigations (TEM), Ammonia Temperature-programmed Desorption Method (NH3-TPD), Pyridine FT-IR, and Thermogravimetric Analysis (TGA). The results show that hierarchical catalysts with interconnected open-mesopores, smaller crystal size, and suitable acidity can better prolong the catalyst lifetime during butene oligomerization. Particularly, the HZSM-5 catalysts treated with CsOH aqueous solution (ATHZ5-Cs) proved to be the most effective catalyst, resulting in approximately 99% conversion of butene and exhibiting C8+ selectivity of 85% within 12 h. Thus, an appropriate hierarchical catalyst can satisfy the oligomerization process and has the potential to be used as a substitute for the commercial ZSM-5 catalyst.


2019 ◽  
Vol 37 (4) ◽  
pp. 5083-5093 ◽  
Author(s):  
Karla Dussan ◽  
Sang Hee Won ◽  
Andrew D. Ure ◽  
Frederick L. Dryer ◽  
Stephen Dooley

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