scholarly journals Lignocellulosic Biomass Pretreatment for Enhanced Bioenergy Recovery: Effect of Lignocelluloses Recalcitrance and Enhancement Strategies

2021 ◽  
Vol 9 ◽  
Author(s):  
Rajesh Banu J ◽  
S Sugitha ◽  
S Kavitha ◽  
Yukesh Kannah R ◽  
J Merrylin ◽  
...  
Keyword(s):  
Lignocellulosic Biomass ◽  
Conversion Efficiency ◽  
Energy Input ◽  
Economic Feasibility ◽  
Biomass Pretreatment ◽  
Present Review ◽  
Main Role ◽  
Recovery Effect ◽  
Main Aspect ◽  
Main Factors

Bioenergy recovery from lignocellulosic (LC) biomass is the beneficial and sustainable approach due to its abundant availability. On the Otherhand, its recalcitrant nature makes the biomass to resist biological hydrolysis and it limits the conversion potential of organics to biomethane. Thus, it is essential to evaluate the association among the recalcitrant nature of LC biomass and its biomethane conversion efficiency. Consequently, this review critically recaps the recalcitrance of LC biomass and its effects on bioenergy recovery, its composition and characteristics. In addition, various enhancement approaches (pretreatments) were conferred as main aspect which plays main role in biomass disintegration and biomethane increment. Based on up -to -date information, elevated energy input and cost necessities of the pretreatments are the main factors that mediates the economic feasibility of the process. The present review apart from spotlighting the pretreatment efficiency, it also focusses on the challenges and limitations of enhancement strategies, energy and technoeconomic feasibility of the various pretreatments of LC biomass.

An eco-friendly biomass pretreatment strategy utilizing reusable enzyme mimicking nanoparticles for lignin depolymerization and biofuel production

2021 ◽  
Author(s):  
Rajiv CHANDRA RAJAK ◽  
Pathikrit Saha ◽  
Mamata S Singhvi ◽  
Darae Kwak ◽  
Danil Kim ◽  
...  
Keyword(s):  
Lignocellulosic Biomass ◽  
Biofuel Production ◽  
Biomass Pretreatment ◽  
Enzyme Mimicking ◽  
Lignin Depolymerization

Pretreatment of lignocellulosic biomass to specifically depolymerise lignin moieties without loss of carbohydrates as well as to minimize the generation of harmful intermediates during the process is a major challenge...

REALITIES AND PROSPECTS FOR INTENSIFICATION OF BIOETHANOL PRODUCTION DUE TO THE USE OF DISCRETE-PULSE ENERGY INPUT

2020 ◽  
Author(s):  
Oleksandr Obodovych ◽  
◽  
Oleksandr Solovey ◽  
Keyword(s):  
Lignocellulosic Biomass ◽  
Pulse Energy ◽  
Energy Input ◽  
Raw Materials ◽  
Amorphous State ◽  
Human Consumption ◽  
Main Task ◽  
Bioethanol Production ◽  
Reducing Substances ◽  
Forestry Residues

The development of the biofuel industry and the production of bioethanol and using it as a fuel in the world in general and in Ukraine in particular are analyzed in the paper. Bioethanol is mostly produced from sugar- and starch-containing raw materials. It is noted that bioethanol is obtained mainly from molasses in Ukraine. Molasses is a by-product of sugar beet production. The prospects of second-generation bioethanol production made from unfit for human consumption lignocellulosic biomass such as agricultural by-products, forestry residues, municipal waste are considered. Pretreatment of lignocellulosic biomass is the main task in bioethanol production from such raw materials. Partial or complete hydrolysis of hemicellulose and the conversion of crystalline cellulose into an amorphous state are required to destroy the strong structure of the lignocellulosic complex and remove lignin for further processing. The method of Discrete-Pulse Energy Input was used to intensify the production of bioethanol from lignocellulosic biomass. The method allows shortening the duration of pretreatment, hydrolysis and fermentation, increasing the amount of reducing substances in the wort, reducing energy consumption and generally making this technology more economically attractive. The universal heat and mass exchange installation in order to reduce energy and resource consumption in bioethanol production from lignocellulosic biomass is developed at the Institute of Engineering Thermophysics of the NAS of Ukraine. The Installation allows carrying out the processes of dispersion, dissolution, heating, hydrolysis at the same time in one apparatus.

Electrode Materials Engineering in Electrocatalytic CO 2 Reduction: Energy Input and Conversion Efficiency

2019 ◽  
pp. 1903796 ◽  
Author(s):  
Rong‐Bin Song ◽  
Wenlei Zhu ◽  
Jiaju Fu ◽  
Ying Chen ◽  
Lixia Liu ◽  
...  
Keyword(s):  
Conversion Efficiency ◽  
Energy Input ◽  
Electrode Materials ◽  
Materials Engineering

Sustainability of sugarcane lignocellulosic biomass pretreatment for the production of bioethanol

2020 ◽  
Vol 299 ◽  
pp. 122635 ◽  
Author(s):  
Sabrina Vieira ◽  
Murillo Vetroni Barros ◽  
Alessandra Cristine Novak Sydney ◽  
Cassiano Moro Piekarski ◽  
Antônio Carlos de Francisco ◽  
...  
Keyword(s):  
Lignocellulosic Biomass ◽  
Biomass Pretreatment ◽  
Lignocellulosic Biomass Pretreatment

scholarly journals Assessment of Natural Deep Eutectic Solvent Pretreatment on Sugar Production from Lignocellulosic Biomass

2018 ◽  
Vol 152 ◽  
pp. 01014 ◽  
Author(s):  
Yoon Li Wan ◽  
Yuen Jun Mun
Keyword(s):  
Enzymatic Hydrolysis ◽  
Lignocellulosic Biomass ◽  
Choline Chloride ◽  
Deep Eutectic Solvent ◽  
Economic Feasibility ◽  
Effect Of Temperature ◽  
Sago Waste ◽  
Natural Deep Eutectic Solvent ◽  
Hydrolysis Of ◽  
Sugar Loss

Before the conversion of lignocellulosic biomass into fuel such as ethanol, the biomass needs to be pretreated and the yield of ethanol is highly dependent on the pretreatment efficiency. This study investigate the performance of deep eutectic solvent (DES) in pretreating sago waste which is a type of starchy biomass. The suitable type of DES in sago waste pretreatment was selected based on three criteria, which is the structural characteristic, the sugar yield during enzymatic hydrolysis and the amount of sugar loss during pretreatment. In this study, three types of DES namely Choline Chloride-Urea (ChCl-Urea), Choline Chloride-Citric acid (ChCl-CA) and Choline Chloride-Glycerol (ChCl-Glycerol) was investigated. The effect of temperature and duration on DES pretreatment was also investigated. All DES reagents were able to disrupt the structure and increase the porosity of sago waste during pretreatment. ChCl-Urea was selected in this study as it shows apparent structural disruption as examined under Scanning Electron Microscope (SEM). The highest glucose yield of 5.2 mg/mL was derived from enzymatic hydrolysis of ChCl-Urea pretreated sago waste. Moreover, reducing sugar loss during ChCl-Urea pretreatment was low, with only 0.8 mg/mL recorded. The most suitable temperature and duration for ChCl-Urea pretreatment is at 110°C and 3 hr. In a nutshell, the application of DES in pretreatment is feasible and other aspects such as the biodegradability and recyclability of DES is worth investigating to improve the economic feasibility of this pretreatment technique.

scholarly journals Nanobiotechnological advancements in lignocellulosic biomass pretreatment

2020 ◽  
Vol 3 ◽  
pp. 308-318 ◽  
Author(s):  
Anju Arora ◽  
Preeti Nandal ◽  
Jatinder Singh ◽  
Madan L. Verma
Keyword(s):  
Lignocellulosic Biomass ◽  
Biomass Pretreatment ◽  
Lignocellulosic Biomass Pretreatment
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