Valorization of Industrial Wastes for Biofuel Production: Challenges and Opportunities

2021 ◽  
pp. 231-245
Author(s):  
J. Jayamuthunagai ◽  
I. Abernaebenezer Selvakumari ◽  
Sunita Varjani ◽  
P. Mullai ◽  
B. Bharathiraja
Keyword(s):  
Industrial Wastes ◽  
Biofuel Production ◽  
Challenges And Opportunities

scholarly journals The Anaerobic Fungi: Challenges and Opportunities for Industrial Lignocellulosic Biofuel Production

2021 ◽  
Vol 9 (4) ◽  
pp. 694
Author(s):  
Luke M. G. Saye ◽  
Tejas A. Navaratna ◽  
James P. J. Chong ◽  
Michelle A. O’Malley ◽  
Michael K. Theodorou ◽  
...  
Keyword(s):  
Natural Habitat ◽  
Biofuel Production ◽  
Anaerobic Fungi ◽  
Industrial Systems ◽  
Microbial Electrolysis Cells ◽  
Lignocellulosic Biofuel ◽  
Electrolysis Cells ◽  
Biological Conversion ◽  
Challenges And Opportunities

Lignocellulose is a promising feedstock for biofuel production as a renewable, carbohydrate-rich and globally abundant source of biomass. However, challenges faced include environmental and/or financial costs associated with typical lignocellulose pretreatments needed to overcome the natural recalcitrance of the material before conversion to biofuel. Anaerobic fungi are a group of underexplored microorganisms belonging to the early diverging phylum Neocallimastigomycota and are native to the intricately evolved digestive system of mammalian herbivores. Anaerobic fungi have promising potential for application in biofuel production processes due to the combination of their highly effective ability to hydrolyse lignocellulose and capability to convert this substrate to H2 and ethanol. Furthermore, they can produce volatile fatty acid precursors for subsequent biological conversion to H2 or CH4 by other microorganisms. The complex biological characteristics of their natural habitat are described, and these features are contextualised towards the development of suitable industrial systems for in vitro growth. Moreover, progress towards achieving that goal is reviewed in terms of process and genetic engineering. In addition, emerging opportunities are presented for the use of anaerobic fungi for lignocellulose pretreatment; dark fermentation; bioethanol production; and the potential for integration with methanogenesis, microbial electrolysis cells and photofermentation.

scholarly journals Physicochemical characterization of agro-industrial residues for second-generation ethanol production

2021 ◽  
Vol 10 (8) ◽  
pp. e33110817151
Author(s):  
Igor Vieira Evangelista ◽  
Adam Gonçalves Arruda ◽  
Larissa Soares de Menezes ◽  
Janaína Fischer ◽  
Carla Zanella Guidini
Keyword(s):  
Ethanol Production ◽  
Rice Straw ◽  
Sugarcane Bagasse ◽  
Second Generation ◽  
Physicochemical Characterization ◽  
Industrial Wastes ◽  
Biofuel Production ◽  
Lignocellulosic Materials ◽  
Solid Waste Disposal ◽  
Second Generation Ethanol

Ethanol production from renewable sources, such as lignocellulosic materials, is already underway in several countries. The interest in the technology stems from concerns about global warming and the environmental impacts of solid waste disposal. Moreover, the conversion of agro-industrial wastes into ethanol is a value-adding strategy. This study aimed to evaluate the physicochemical characteristics of three lignocellulosic materials— rice straw bran, sugarcane bagasse, and corn peel bran—and determine, on the basis of these analyses, their suitability as feedstocks for second-generation ethanol production. Physicochemical characterization included the determination of particle size, moisture, ash, total solids, water activity, crude fat, protein, total extractives, soluble and insoluble lignin, holocellulose, cellulose, hemicellulose, and total carbohydrates. Rice straw bran is composed of 38.33% cellulose and 19.73% hemicellulose, sugarcane bagasse is composed of 27.09% cellulose and 5.61% hemicellulose, and corn peel bran is composed of 55.75% cellulose and 12.93% hemicellulose. The characterization showed the high concentration of cellulose in the residue of the corn peel bran. The results indicate that the three biomasses are suitable raw materials for biofuel production.

Biofuel production: Challenges and opportunities

2017 ◽  
Vol 42 (12) ◽  
pp. 8450-8461 ◽  
Author(s):  
M.V. Rodionova ◽  
R.S. Poudyal ◽  
I. Tiwari ◽  
R.A. Voloshin ◽  
S.K. Zharmukhamedov ◽  
...  
Keyword(s):  
Biofuel Production ◽  
Challenges And Opportunities

scholarly journals Biorefinery Combining HTL and FT to Convert Wet and Solid Organic, Industrial Wastes into 2nd Generation Biofuels with Highest Efficiency: Heat-to-Fuel

Proceedings ◽  
2018 ◽  
Vol 2 (15) ◽  
pp. 1128
Author(s):  
Tatiana Loureiro ◽  
Raymond Sterling
Keyword(s):  
Life Cycle Analysis ◽  
Integrated System ◽  
Industrial Wastes ◽  
Biofuel Production ◽  
Fully Integrated ◽  
Horizon 2020 ◽  
Novel Technologies ◽  
2Nd Generation ◽  
Transportation Sector ◽  
Production Technologies

Heat-to-Fuel is a 48 months Horizon 2020 project which main objective is to deliver the next generation of biofuel production technologies supporting the de-carbonisation of the transportation sector by integrating its novel technologies together with innovative activities on design, modelling, development of hardware and processes, testing and life cycle analysis of a fully integrated system.

Chapter 2. Challenges and Opportunities for Using Wheat for Biofuel Production

2011 ◽  
pp. 13-26 ◽  
Author(s):  
Peter R Shewry ◽  
Jackie Freeman ◽  
Mark Wilkinson ◽  
Till Pellny ◽  
Rowan A C Mitchell
Keyword(s):  
Biofuel Production ◽  
Challenges And Opportunities

scholarly journals Potential Use of Industrial Cocoa Waste in Biofuel Production

2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
C. J. Mendoza-Meneses ◽  
A. A. Feregrino-Pérez ◽  
C. Gutiérrez-Antonio
Keyword(s):  
Industrial Wastes ◽  
Biofuel Production ◽  
Combustion Source ◽  
Direct Combustion ◽  
Livestock Feed ◽  
Cocoa Pod Husk ◽  
Chemical Products ◽  
Solid Liquid ◽  
By Products ◽  
Potential Use

Worldwide, the wastes derived from food production are generated in elevated volumes annually. In particular, the cocoa industrial wastes represent a source of usable biomass for the elaboration of new products such as food, livestock feed, cosmetics, and chemical products, and they can even be used for the generation of biofuels. The cocoa industrial wastes include cocoa pod husk, mucilage, and bean shells, which contain compounds of interest for different industries. However, the lignocellulose content of these by-products requires a pretreatment to fully utilize them; thus, different biofuels can be produced, depending on the conversion technology used to obtain the highest biomass yield. Recent studies reported the use of cocoa industrial wastes for the production of solid, liquid, and gaseous biofuels; nevertheless, the most common use reported is as a direct combustion source, which is used to supply the same production plants. Therefore, the objective of this work is to carry out a review on the uses of the by-products generated from cocoa for the generation of biofuels, as well as the technological concept applied for the transformation. In addition, the future trends indicate the relevance of using catalysts in production to increase reactions in the conversion of compounds, including the use of statistical models to optimize the processing variables.

scholarly journals Processing Technologies of Lignocellulosic Biomass: Potentials and Constraints for Ruminant Feed Production

2021 ◽  
Vol 31 (2) ◽  
pp. 55
Author(s):  
Simon Petrus Ginting
Keyword(s):  
Lignocellulosic Biomass ◽  
Nutritional Quality ◽  
Crop Residues ◽  
Industrial Wastes ◽  
Biofuel Production ◽  
Processing Technologies ◽  
Alternative Means ◽  
Novel Processing ◽  
Ruminant Feed

<p>Lignocellulosic biomass (LCB) such as crop residues and agro-industrial wastes are renewable resources and available abundantly. It could play central role in sustainable feeding system of ruminant production. These materials are potential source of fiber to support optimum rumen function and energy supply. However, the LCB has important nutritional constraints that limit its utilization as feed for ruminants. This review is intended to discuss nutritional constraints of LCB as ruminant feed and the potentials and challenges of processes in upgrading the nutritional quality of LCB. The main polymer compounds in LCB are  cellulose (30 to 60% ), hemicellulose (20 to 40 %) and lignin (15-25%)  and its  inter linkages make the energy contained in the LCB is less extractable by the ruminant digestive system. Physical, chemical and biological processing technologies have been well known as  alternative means to upgrade the nutritive values of LCB. Recently, novel processing technologies of LCB such as ionic liquid, organosolv, sonication, and new screened rot white fungi (<em>Ceriporiopsis subvermispora</em>) and some older technologies  using alkaline and acids have been studied and developed particularly for the purpose of biofuel production in the bio refinery industry. Processing technologies have different properties in degrading the lignin, degrading and solubilizing the cellulose and hemicellulose that all relate to the nutritive quality of LCB. Advantages of processed LCB in ruminant animals were indicated by increase in diet digestibility, intake, rumen fermentation and gain. It is concluded that numerous processing technologies are available to upgrade the nutritional quality of LCB, but there are obstacles to use some of these techniques for wide application in ruminant production system.</p>

Continuous hydrogenolysis of acetal-stabilized lignin in flow

2021 ◽  
Author(s):  
Wu Lan ◽  
Yuan Peng Du ◽  
Songlan Sun ◽  
Jean Behaghel de Bueren ◽  
Florent Héroguel ◽  
...  
Keyword(s):  
Steady State ◽  
Challenges And Opportunities

We performed a steady state high-yielding depolymerization of soluble acetal-stabilized lignin in flow, which offered a window into challenges and opportunities that will be faced when continuously processing this feedstock.

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