New ternary deep eutectic solvents for effective wheat straw deconstruction into its high-value utilization under near-neutral conditions

2020 ◽  
Vol 22 (24) ◽  
pp. 8713-8720
Author(s):  
Yu-hui Ci ◽  
Fei Yu ◽  
Cheng-xuan Zhou ◽  
Hao-e Mo ◽  
Zu-yu Li ◽  
...  
Keyword(s):  
Wheat Straw ◽  
Resource Utilization ◽  
Deep Eutectic Solvents ◽  
Maintenance Cost ◽  
Biomass Resource ◽  
Neutral Conditions ◽  
Refining Equipment

The new synthesized DES is used to reduce, which significantly reduces the maintenance cost of biomass refining equipment and provides a feasible way for biomass resource utilization under near-neutral conditions.

scholarly journals Dual Threshold Adaptive Dynamic Migration Strategy of Virtual Resources Based on BBU Pool

Electronics ◽  
2020 ◽  
Vol 9 (2) ◽  
pp. 314 ◽  
Author(s):  
Cheng Wang ◽  
Yushi Cao ◽  
Zhili Zhang ◽  
Weidong Wang
Keyword(s):  
Energy Consumption ◽  
Resource Utilization ◽  
Mobile Communications ◽  
Resource Sharing ◽  
Rapid Development ◽  
Base Stations ◽  
Maintenance Cost ◽  
Migration Strategy ◽  
Continuous Growth ◽  
Adaptive Dynamic

The rapid development of mobile communications and the continuous growth of service needs lead to an increase in the number of base stations (BSs). Through virtualization and cloud technology, virtual Baseband Units (BBUs) are deployed on a virtual machine (VM) to build a BBU pool to achieve hardware resource sharing, which not only saves BS construction costs but also facilitates management and control. However, too high or too low server resource utilization in the pool not only affects the performance of the virtual BBU but also increases the maintenance cost of the physical equipment. In this paper, BBUs are virtualized to construct a virtual BBU pool based on the OpenStack cloud architecture and a dual threshold adaptive dynamic migration strategy is proposed in this scenario. Establish upper and lower threshold of resource utilization of the servers in the pool and the strategy determines whether the dynamic migration is triggered according to the resource utilization of each compute node. If the migration is triggered, the strategy selects the virtual resource to be moved out and the target node to realize the dynamic migration to achieve the purpose of balancing the server load and saving energy consumption. The migration strategy proposed in this paper is simulated on Cloudsim and the experimental results show that the strategy can effectively reduce the number of migrations and migration time on the basis of reducing energy consumption and SLA violations. This paper successfully deployed the strategy on the OpenStack platform, which implements dynamic migration autonomously to save the overall energy consumption of the BBU pool, instead of manual operations.

scholarly journals Deep Eutectic Solvents: Fractionation of Wheat Straw

BioResources ◽  
2015 ◽  
Vol 10 (4) ◽  
Author(s):  
Michal Jablonský ◽  
Andrea Škulcová ◽  
Lucia Kamenská ◽  
Milan Vrška ◽  
Jozef Šíma
Keyword(s):  
Wheat Straw ◽  
Deep Eutectic Solvents

GIS-based biomass resource utilization for rice straw cofiring in the Taiwanese power market

Energy ◽  
2013 ◽  
Vol 55 ◽  
pp. 354-360 ◽  
Author(s):  
Ming-Che Hu ◽  
An-Lei Huang ◽  
Tzai-Hung Wen
Keyword(s):  
Rice Straw ◽  
Resource Utilization ◽  
Power Market ◽  
Biomass Resource

scholarly journals Synthesis of Green Deep Eutectic Solvents for Pretreatment Wheat Straw: Enhance the Solubility of Typical Lignocellulose

2022 ◽  
Vol 14 (2) ◽  
pp. 657
Author(s):  
Zedong Teng ◽  
Liyan Wang ◽  
Bingqian Huang ◽  
Yue Yu ◽  
Jianwei Liu ◽  
...  
Keyword(s):  
Wheat Straw ◽  
Removal Rate ◽  
Low Cost ◽  
Covalent Bond ◽  
Crystallinity Index ◽  
Cost Effective ◽  
Deep Eutectic Solvents ◽  
X Ray Diffraction ◽  
Total Sugar Concentration ◽  
The Cost

Deep eutectic solvents (DESs), a novel and environmentally-friendly solvent, have high potential for biomass pretreatment due to its advantages of low cost, low toxicity, strong solubility, excellent selectivity and biocompatibility. Two types of DES (binary and ternary) were synthesized and characterized, and optimized ternary DES was selected to pretreat wheat straw for enhancement of the solubility of lignocellulose. Moreover, enzymatic hydrolysis was tested to verify the performance of pretreatment. In addition, the changes in surface morphology, structure and crystallinity of wheat straw pretreated by DES were analyzed to reveal the pretreatment mechanism. Experimental results indicated that viscosity exhibited little difference in different types of DESs, and a declining trend as the temperature increases in same DES. The ternary DES pretreatment efficiently enhanced the solubility of typical lignocellulose, with the optimal removal rate of lignin at approximately 69.46%. Furthermore, the total sugar concentration of the residue was about 5.1 times more than that of untreated wheat straw after the pretreated samples were hydrolyzed by the cellulase for 24 h, indicating that DES has the unique ability to selectively extract lignin and hemicellulose from wheat straw while retaining cellulose, and thus enhanced the solubility of lignocellulose. The scanning electron microscope (SEM) observation and X-ray diffraction (XRD) determination showed that the surface of wheat straw suffered from serious erosion and the crystallinity index of wheat straw increased after DES5 pretreatment. Therefore, DES cleaves the covalent bond between lignin and cellulose and hemicellulose, and reduces the intractability of lignin resulting in the lignin dissolution. It suggests that DES can be used as a promising and biocompatible pretreatment way for the cost-effective conversion of lignocellulose biomass into biofuels.

Pretreatment of wheat straw using basic ethanolamine-based deep eutectic solvents for improving enzymatic hydrolysis

2018 ◽  
Vol 263 ◽  
pp. 325-333 ◽  
Author(s):  
Zheng Zhao ◽  
Xiaochun Chen ◽  
Muhammad Furqan Ali ◽  
Ahmed A. Abdeltawab ◽  
Sobhy M. Yakout ◽  
...  
Keyword(s):  
Enzymatic Hydrolysis ◽  
Wheat Straw ◽  
Deep Eutectic Solvents
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