Synthesis of jet fuel range cycloalkanes with diacetone alcohol from lignocellulose

2016 ◽  
Vol 18 (21) ◽  
pp. 5751-5755 ◽  
Author(s):  
Fang Chen ◽  
Ning Li ◽  
Shanshan Li ◽  
Guangyi Li ◽  
Aiqin Wang ◽  
...  

Jet fuel range cycloalkanes were synthesized in high carbon yield (∼76%) with diacetone alcohol which can be obtained from lignocellulose.

2021 ◽  
Author(s):  
Wenjing Jiang ◽  
Zhenlin Jiang ◽  
Xin Fan ◽  
Min Zhu

Abstract Bacterial cellulose (BC)decomposes easily and the carbon residue rate is low. These factors critically restrict its application in fabricating cellulosic carbon materials. Therefore, in this paper, a simple and facile method to improve the BC carbon yield is proposed based on the stretching orientation of BC. By controlling the degree of BC deformation, the orientation and crystallinity of the BC can be adjusted, thereby sensitively affecting the graphitization degree and carbon yield of carbonized BC. Samples were characterized by scanning electron microscope (SEM), X-ray diffraction (XRD), Raman scattering, and low-field nuclear magnetic resonance (LNMR). The results indicated that when the pre-stretched strain was 40%, the crystallinity and graphitization degree of BC improved, and the carbon yield increased significantly in comparison to that of untreated BC. Thus, a low-cost, facile, and environmentally friendly method of increasing the carbon yield of BC was developed in this study.


RSC Advances ◽  
2019 ◽  
Vol 9 (41) ◽  
pp. 23727-23734 ◽  
Author(s):  
Zhuohua Sun ◽  
Daniel Buwalda ◽  
Katalin Barta

This work described a simple two-step process for the complete lignocellulose conversion to alkanes with high carbon yield.


ChemSusChem ◽  
2017 ◽  
Vol 10 (16) ◽  
pp. 3225-3234 ◽  
Author(s):  
Sibao Liu ◽  
Saikat Dutta ◽  
Weiqing Zheng ◽  
Nicholas S. Gould ◽  
Ziwei Cheng ◽  
...  

2018 ◽  
Vol 96 (7) ◽  
pp. 765-770 ◽  
Author(s):  
T.D. Hatchard ◽  
R.A. Fielden ◽  
M.N. Obrovac

The cycling performance in lithium half cells of Si alloy electrodes with polyvinylidene fluoride or polyimide binders were evaluated after the electrodes were cured at temperatures below and above the binder carbonization temperature. After carbonization, the cycling performance of electrodes using polyvinylidene fluoride binder improved considerably but still suffered from capacity fade. Electrodes with carbonized polyimide binder had superior performance and showed no capacity fade after 100 cycles. The superior performance of carbonized polyimide electrodes is thought to be related to polyimide’s high carbon yield upon heating, resulting in the formation of a uniform carbon coating on alloy surfaces. These results suggest that new high performance binders for alloy electrodes might be derived by the carbonization of polymers with a high carbon yield that lead to the formation of uniform carbon coatings on alloy particles.


2020 ◽  
Vol 608 ◽  
pp. 117847
Author(s):  
Jimei Zhang ◽  
Yanchun Shi ◽  
Hongbin Cao ◽  
Yulong Wu ◽  
Mingde Yang

2013 ◽  
Vol 131 (11) ◽  
pp. n/a-n/a ◽  
Author(s):  
Hossein Roghani-Mamaqani ◽  
Vahid Haddadi-Asl ◽  
Mehrzad Mortezaei ◽  
Khezrollah Khezri

Catalysts ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 886 ◽  
Author(s):  
Wei Wang ◽  
Shaoying Sun ◽  
Fengan Han ◽  
Guangyi Li ◽  
Xianzhao Shao ◽  
...  

Diesel and jet fuel range cycloalkanes were obtained in ~84.8% overall carbon yield with cyclopentanone and furfural, which can be produced from hemicellulose. Firstly, 2,5-bis(furan-2-ylmethyl)-cyclopentanone was prepared by the aldol condensation/hydrogenation reaction of cyclopentanone and furfural under solid base and selective hydrogenation catalyst. Over the optimized catalyst (Pd/C-CaO), 98.5% carbon yield of 2,5-bis(furan-2-ylmethyl)-cyclopentanone was acquired at 423 K. Subsequently, the 2,5-bis(furan-2-ylmethyl)-cyclopentanone was further hydrodeoxygenated over the M/H-ZSM-5(Pd, Pt and Ru) catalyst. Overall, 86.1% carbon yield of diesel and jet fuel range cycloalkanes was gained over the Pd/H-ZSM-5 catalyst under solvent-free conditions. The cycloalkane mixture obtained in this work has a high density (0.82 g mL−1) and a low freezing point (241.7 K). Therefore, it can be mixed into diesel and jet fuel to increase their volumetric heat values or payloads.


2017 ◽  
Vol 26 (1) ◽  
pp. 5-15 ◽  
Author(s):  
Qing Ai ◽  
Meng Liu ◽  
Fengxian Sun ◽  
Chao Liu ◽  
Xinlin Xia

A double-thickness transmission model for a three-layer structure combined with a genetic algorithm was adopted to determine the spectral radiation properties of liquids. The reliability of this model was illustrated by the good agreement between the optical constants measured and that from the references. Then the spectral radiation properties of three typical liquid hydrocarbon fuels (diesel, gasoline, and jet fuel) available in China were measured in the wavelength range of 1000–2100 nm from room temperature to 423 K. Results indicate that the optical constants of these fuels are related to the fuel composition, wavelength, and temperature. At room temperature, the absorption index of the low carbon fuel (gasoline) was smaller than that for the high carbon fuels (diesel and jet fuel) in the wavelength range of 1100–1450 nm and 1700–2000 nm and larger in other bands. From room temperature to 423 K, the absorption index increased with temperature by a maximum rate of 50% per degree for the low carbon fuel, while it presents different trends for the high carbon fuel. The absorption index of the diesel decreased with temperature by a maximum rate of 40% per degree, while there exists a turning point for that of jet fuel at 1685 nm. For all these fuels, the temperature influence on the refractive index was not obvious, as the changing rate only reaches up to 3% per degree.


2016 ◽  
Vol 18 (13) ◽  
pp. 3707-3711 ◽  
Author(s):  
Xueru Sheng ◽  
Ning Li ◽  
Guangyi Li ◽  
Wentao Wang ◽  
Aiqin Wang ◽  
...  

C6–C15branched alkanes were synthesized in a high carbon yield (∼80%) with acetone and hydrogen over a dual-bed catalyst system.


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