Potential of cereal-based agricultural residues available for bioenergy production

Rocha‐Meneses, Lisandra; Bergamo, Thaisa; Kikas, Timo

doi:10.1016/j.dib.2019.103829

Cited by 20 publications

(11 citation statements)

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“…Although Nigeria has been reported as an emerging economy for biofuel production [37], a study by Rocha-Meneses et al [38] shows that the country is only 19th out of 27 in the equatorial Africa with more potential available for bioenergy production. The study reported the utilization of agricultural waste as barley, wheat, millet, oat, rice, rye, sorghum, and maize for bioenergy production.…”

Section: Napier Grass Availability Production and Growthmentioning

confidence: 99%

Bioenergy Yields from Sequential Bioethanol and Biomethane Production: An Optimized Process Flow

et al. 2019

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This study investigates the potential of different stages of the bioethanol production process (pretreatment, hydrolysis, and distillation) for bioethanol and biomethane production, and studies the critical steps for the liquid and the solid fractions to be separated and discarded to improve the efficiency of the production chain. For this, Napier grass (a fast-growing grass) from Effurun town of Delta State in Nigeria was used and the novel pretreatment method, nitrogen explosive decompression (NED), was applied at different temperatures. The results show that the lowest glucose (13.7 g/L) and ethanol titers (8.4 g/L) were gained at 150 • C. The highest glucose recovery (31.3 g/L) was obtained at 200 • C and the maximum ethanol production (10.3 g/L) at 170 • C. Methane yields are higher in samples pretreated at lower temperatures. The maximum methane yields were reported in samples from the solid fraction of post-pretreatment (pretreated at 150 • C, 1.13 mol CH4/100 g) and solid fraction of the post-hydrolysis stage (pretreated at 150 • C, 1.00 mol CH4/100 g). The lowest biomethane production was noted in samples from the liquid fraction of post-pretreatment broth (between 0.14 mol CH4/100 g and 0.24 mol CH4/100 g). From the process point of view, samples from liquid fraction of post-pretreatment broth should be separated and discarded from the bioethanol production process, since they do not add value to the production chain. The results suggest that bioethanol and biomethane concentrations are influenced by the pretreatment temperature. Napier grass has potential for bioethanol and further biomethane production and it can be used as an alternative source of energy for the transportation sector in Nigeria and other countries rich in grasses and provide energy security to their population.alternative sources of energy that will decrease the share of fossil fuels utilised in the transportation sector and productive uses, reduce environmental concerns caused by the extensive utilization of these resources (e.g., climate change and global warming), increase energy security, and improve the access of the population to electricity. Renewable energy sources from lignocellulosic biomass have been reported as promising solutions to these problems [4]. Nowadays, biomass itself is responsible for 10% primary energy consumption worldwide [5] and it can be used as a promising feedstock for biofuel production. The sustainability of wastes and by-products as a biofuel for the transportation sector in a circular economy has been studied in the literature, in order to make the biogas-biomethane chain more sustainable [6][7][8]. These studies show the positive impact of biofuels in the transportation section in Europe. However, further research needs to be done in order to apply circular economy models to emerging economies.Sub-Saharan Africa has great potential to develop renewable energy sources, such as wind, biomass, solar, and hydro. Just in Nigeria, the biomass potential is about 144 million tonnes per year and the potenti...

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Section: Napier Grass Availability Production and Growthmentioning

confidence: 99%

Bioenergy Yields from Sequential Bioethanol and Biomethane Production: An Optimized Process Flow

et al. 2019

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“…According to Statistics Estonia [9], the area for barley cultivation in Estonia was in the range of 102,487 to 138,485 ha for the last 5 years (2016-2020). Roughly around 2.79 tons of straw can be produce per ha of barley cultivation [10]. Thus, the potential for barley straw production in Estonia is around 285,000 tons for the last 5 years.…”

Section: Introductionmentioning

confidence: 99%

Torrefaction of Agricultural and Wood Waste: Comparative Analysis of Selected Fuel Characteristics

et al. 2021

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Abundant biomass is a potential energy source. However, it possesses several challenges when considered for energy applications. Torrefaction, a thermal pretreatment process can improve the properties of biomass as energy source. This study focused on comparing effect of torrefaction operating parameters on agricultural and wood wastes properties as fuel. The physiochemical properties, composition, moisture-biomass interaction and ash melting behavior were determined. The result show that higher torrefaction temperature and longer residence time increased lignin content, reduced hemicellulose and cellulose content. The moisture uptake of torrefied biomass was reduced in the range 2.47–9.94% compared with raw biomass depending on torrefaction temperature that indicate torrefied biomass was more hydrophobic than raw biomass. The moisture adsorption isotherm curve shows type II isotherm based on the Brunauer-Emmett-Teller’s (BET) classification and was best described by the Oswin model. In addition, torrefaction treatment showed significant influence on the melting behavior of the biomass ash. Especially for agricultural wastes, the fouling tendency shifted from serious range to low range with torrefaction treatment. Torrefaction showed promise for improving fuel characteristics of the studied biomass.

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“…The milk production in this region has grown by 42% in the last two decades (Fariña et al., 2020). In the countries where SB is not available, other kinds of lignocellulosic material could be used (Rocha‐Meneses et al., 2019). For this reason, further studies testing different lignocellulosic material as dairy fatty waste adsorbents should be performed.…”

Section: Resultsmentioning

confidence: 99%

Methane production from anaerobic digestion of dairy grease trap waste: Effect of sugarcane bagasse addition

Bueno

Henao

Rabelo

et al. 2021

Environmental Quality Mgmt

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Lipids are attractive substrates for anaerobic digestion due to their high methane production yield. However, high concentrations of lipids may cause problems in anaerobic processes. Typically, grease trap waste is mechanically removed and discharged, both generating environmental issues and wasting a potential energy source. In this study, grease trap waste from a dairy wastewater treatment plant was subjected to anaerobic digestion. Untreated and pretreated sugarcane bagasse was evaluated as fat adsorbents to reduce the inhibitory effect of the fatty waste. The bagasse pretreated by the organosolv method was the condition that most contributed to increased methane production (82%) from anaerobic digestion of dairy fatty waste at 0.5 g COD.g–1TVS concentration. Untreated bagasse provided the second‐best condition, followed by hydrothermally treated bagasse, presenting no statistical difference. The obtained results showed the potential of using sugarcane bagasse as a strategy to reduce the inhibitory effect of the fatty waste from the dairy grease trap, making this waste another possible source for generating biogas.

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Potential of cereal-based agricultural residues available for bioenergy production

Cited by 20 publications

References 2 publications

Bioenergy Yields from Sequential Bioethanol and Biomethane Production: An Optimized Process Flow

Bioenergy Yields from Sequential Bioethanol and Biomethane Production: An Optimized Process Flow

Torrefaction of Agricultural and Wood Waste: Comparative Analysis of Selected Fuel Characteristics

Methane production from anaerobic digestion of dairy grease trap waste: Effect of sugarcane bagasse addition

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