Lignocellulose-Based Bioproducts

doi:10.1007/978-3-319-14033-9

Cited by 24 publications

(8 citation statements)

References 383 publications

(652 reference statements)

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“…The term biomass includes energy crops, residues, and other biological materials that can be used to produce renewable energy [2]. The first-generation biofuels are produced from agricultural crops such as corn, sugarcane, soybean oil, and sunflower [3]. However, there is a conflict due to these biomasses being used for food and generating the name "food versus fuel" [4].…”

Section: Production Of Bioenergymentioning

confidence: 99%

“…However, there is a conflict due to these biomasses being used for food and generating the name "food versus fuel" [4]. Additionally, emissions of greenhouse gases (GHG) are believed to be lesser for second-generation biofuels than the first-generation fuels [3]. For these reasons, agro-industrial residues have gained attention due to their disponibility, and they include residues from crop, food, and oil industries.…”

Section: Production Of Bioenergymentioning

confidence: 99%

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Agro-Industrial Waste Revalorization: The Growing Biorefinery

Beltrán-Ramírez¹,

Orona‐Tamayo²,

Cornejo-Corona³

et al. 2019

Biomass for Bioenergy - Recent Trends and Future Challenges

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Section: Production Of Bioenergymentioning

confidence: 99%

Section: Production Of Bioenergymentioning

confidence: 99%

Agro-Industrial Waste Revalorization: The Growing Biorefinery

Beltrán-Ramírez¹,

Orona‐Tamayo²,

Cornejo-Corona³

et al. 2019

Biomass for Bioenergy - Recent Trends and Future Challenges

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“…A typical composition of lignocellulosic biomass consists of 35-50% cellulose, 15-35% hemicellulose and 10-35% lignin. However, the concentration of the components depends mainly on the source of the plant studied [12,17].…”

Section: Raw Materialsmentioning

confidence: 99%

“…On the other hand, third generation biofuels are obtained from aquatic biomass such as macro and micro algae, as well as fish residues [17][18][19]. Third generation biofuels present certain advantages over first and second biofuels, such is the case of microalgae which harvesting cycle is shorter than traditional crops, allowing higher yields due to several harvests through the year [20,21].…”

Section: Raw Materialsmentioning

confidence: 99%

“…Hydrolysis consists in the degradation of the polysaccharides in an aqueous medium catalyzed by enzyme or acid. Therefore, the hydrolysis can be carried out by chemical or enzymatic processes [2,17]. However, enzymatic hydrolysis is considered the most promising strategy because it presents several advantages over chemical saccharification including high efficiency, low energy consumption due to the requirement of mild operation conditions, not environmental damage because enzymes are biodegradable, not toxic compounds formation and, low deterioration and corrosion problems for the equipment.…”

Section: Enzymatic Hydrolysismentioning

confidence: 99%

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Bioreactor design for enzymatic hydrolysis of biomass under the biorefinery concept

Pino

Rodríguez-Jasso

Michelin

et al. 2018

Chemical Engineering Journal

160

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The dependence on non-renewable resources, particularly fossil fuels, has awaken a growing interest in research of sustainable alternative energy sources, such as bioethanol. The production of bioethanol from lignocellulosic materials comprises three main stages, starting with a pretreatment, followed by an enzymatic hydrolysis step where fermentable sugars are obtained for the final fermentation process. Enzymatic hydrolysis represents an essential step in the bioethanol production, however there are some limitations in it that hinders the process to be economically feasible. Different strategies have been studied to overcome these limitations, including the enzyme recycling and the utilization of high solids concentrations. Several investigations have been carried out in different bioreactor configurations with the aim to obtain higher yields of glucose in the enzymatic hydrolysis stage; however, the commonest are Stirred Tank Bioreactors (STBR) and Membrane Bioreactors (MBR). In general, the key criteria for a bioreactor design include adequate mass transfer, low shear stress, and efficient mixing that allows the appropriated interaction between the substrate and the enzyme. Therefore, this review will address the main aspects to be considered for a bioreactor design, as well as, the operational conditions, some characteristics and mode of operating strategies of the two main bioreactors used in the enzymatic hydrolysis stage. Moreover, two types of pneumatically agitated bioreactors, namely bubble column and gas-lift bioreactors, are discussed as promising alternatives to develop enzymatic saccharification due to their low energy consumption compared with STBR.

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The challenges of using lignocellulosic biomass in pioneer industrial plants

Corrêa,

Santos,

Bomtempo

et al. 2023

Biofuels Bioprod Bioref

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To use residual biomass in industrial plants it is necessary to fulfill conditions that have proven challenging when developing production processes based on renewable sources. Relatively recent efforts to produce second‐generation ethanol (2GE) have led to some caveats regarding obstacles that can arise in the large‐scale conversion of residual lignocellulosic biomass to biofuel. Even after years of research to develop technological packages that would make the production of 2GE feasible, the first plants installed could not operate continuously within the design, and they failed to meet market expectations. By interviewing managers from the 2GE pioneer plants, the research reported in this paper identified the methods used by the 2GE pioneers, from decision‐making processes to startup and plant operation. Analyzing the challenges they faced and their relationships with innovation processes, it found that industrial handling of lignocellulosic biomass was the main reason for the relative operational failure of the pioneer 2GE production plants. It also found that changes of policy and lack of efficient communication between the equipment suppliers and the users might also lead to the failure of the pioneer plants. Based on these findings, this paper considers the significance of these projects for biobased industries using lignocellulosic biomass in pioneer plants. The conclusions suggest that filling the knowledge gap related to the industrial handling of lignocellulosic biomass, as well as understanding that new relationships between biorefineries and their equipment suppliers may generate new paths for innovation processes, should be fundamental for the implementation of first‐of‐a‐kind plants within the scope of bioeconomy.

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Lignocellulose-Based Bioproducts

Cited by 24 publications

References 383 publications

Agro-Industrial Waste Revalorization: The Growing Biorefinery

Agro-Industrial Waste Revalorization: The Growing Biorefinery

Bioreactor design for enzymatic hydrolysis of biomass under the biorefinery concept

The challenges of using lignocellulosic biomass in pioneer industrial plants

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