Importance of redefinition of corn stover harvest time to enhancing non-food bio-ethanol production

Zhang, Changwei; Chen, Huidong; Pang, Siyu; Su, Changsheng; Lv, Meng; An, Na; Wang, Kua; Cai, Di; Qin, Peiyong

doi:10.1016/j.renene.2019.07.066

Cited by 24 publications

(7 citation statements)

References 39 publications

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“…The use of second-generation bio-ethanol made from corn Stover has gained prominence in recent years. This is not only because of China's rising appetite for biofuels but also because it protects the environment from the haze pollution caused by burning waste in the open [77].…”

Section: Bio-ethanolmentioning

confidence: 99%

Production of Biofuels from Biomass as an Approach Towards Sustainable Development: A Short Review

Saleh

Mahdi³

2022

NTU-JRE

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Alternative fuels reduce the carbon footprint of internal combustion engines. Biofuels are the most important alternative fuels. Manufacturing processes for biofuels have made it possible to reduce greenhouse gas (GHG) emissions from well to wheel. There are a number of popular alternative fuels for use in internal combustion (IC) engines, including biodiesel, bioethanol, and bio methanol. Biodiesel and petroleum diesel fuel blends in compression ignition (CI) engines have received a lot of attention. Biofuel is any liquid fuel derived from "biomass," such as plants and animal waste. Biofuels replace gasoline and diesel. Biofuels are promising because the carbon dioxide (CO2) they emit is recycled through the environment. Biofuel plants collect CO2 from the air and release it when burned. In principle, biofuels can be a "carbon neutral" or "carbon negative" means to power automobiles, trucks, and planes. Biofuels can reduce CO2 emissions without requiring many infrastructural changes. They can be used in existing cars and mass-produced from biomass like chemicals and pharmaceuticals. Future biofuels may be moved using current pipelines. Making carbon-neutral biofuels is difficult. Fermentation, processing energy, transportation, and even plant nutrients can produce CO2 and other greenhouse gases before biofuels are consumed. Biomass agriculture can have climate consequences if it replaces CO2-storing woods. How biofuels are generated and used affects their potential as a climate solution.

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Section: Bio-ethanolmentioning

confidence: 99%

Production of Biofuels from Biomass as an Approach Towards Sustainable Development: A Short Review

Saleh

Mahdi³

2022

NTU-JRE

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“…In the last few decades, there has been a trend in the production of biofuels as a need for decarbonizing our economy to mitigate climate change and to restrain the depletion of fossil resources (Papadaskalopoulou et al, 2019). Bioethanol is one of the most common commercial biofuels (Zhang et al, 2020). Sweet potato (Ipomoea batatas) has been considered a promising raw material for ethanol production, as it has a higher starch yield per unit land cultivated than grains (Lareo and Ferrari, 2019).…”

Section: Introductionmentioning

confidence: 99%

Food waste biorefinery advocating circular economy: Bioethanol and distilled beverage from sweet potato

Weber

Trierweiler

2020

Journal of Cleaner Production

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The exponential growth rate of the global population has been causing a threat to finite resources and also increasing the amount of waste generated. The global quantitative food waste for tubers is 45% per year, which in Brazil would amount to 350,000 tons of sweet potato wasted annually. Food waste causes 10% of the emissions of greenhouse gases. In this work, food waste biorefineries are the proposed solution. Integrated processing via a combination of different technologies to produce both ethanol and distilled beverage was evaluated to valorize sweet potato waste profitably within the circular economy concept. No works concerning the integrated production of both products simulating different real market scenarios were found. Five different scenarios varying the production percentage of each product were evaluated. The higher the production of the distilled beverage, the more profitable the scenarios are. Economic results began to be positive when the production for sale of each product reaches 40%, plus 20% of ethanol for domestic consumption. The scenario with 80% of beverage production presented NPV of US$ 1,078,500.18, IRR of 51%, and discounted payback of 1.06 years. The sweet potato waste biorefinery is a sustainable model and contributes to the development of the agriculture and food sector by providing new businesses and consequent job creation. It also leads to the reduction of greenhouse emissions by producing renewable resources and marketable products, thus reaching the goals of the circular economy.

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“…Therefore, various alternative sources of energy such as solar, wind, and biomass have attracted attention and are regarded as renewable sources. Among those sources, lignocellulosic biomass has been studied as an important resource that can be converted into liquid transportation fuels (ethanol and butanol) and various industrial biochemical products by utilizing main components of biomass such as cellulose, hemicellulose, and lignin [3][4][5]. In the past, sugar and starch obtained from sugarcane and corn grain have been primary source of fuel ethanol production, termed as the first-generation biomass and fuel, respectively [6].…”

Section: Introductionmentioning

confidence: 99%

Effects of Additional Xylanase on Saccharification and Ethanol Fermentation of Ammonia-Pretreated Corn Stover and Rice Straw

2020

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Synergistic effect of cellulase and hemicellulase (xylanase) was evaluated because lignocellulosic material is a heterogeneous complex of cellulose and hemicellulose. Various effects of HTec2 addition on enzymatic saccharification and fermentation were evaluated using two different substrates such as corn stover and rice straw. Corn stover and rice straw were pretreated by the LMAA (low-moisture anhydrous ammonia) method at the preselected same conditions (90 °C, 120 h, moisture content = 50%, NH3 loading = 0.1 g NH3/g). It was observed that the enzymatic saccharification yield of pretreated corn stover (76.4% for glucan digestibility) was higher than that of pretreated rice straw (70.9% for glucan) using CTec2 cellulase without HTec2 addition. Glucan digestibility of pretreated corn stover was significantly increased from 76.4% to 91.1% when the HTec2/CTec2 (v/v) increased from 0 to 10. However, it was interesting that the ethanol production was decreased from 89.9% to 76.3% for SSF and 118.0% to 87.9% for SSCF at higher HTec2/CTec2. As the glucan loading increased from 2.0% to 7.0%, the ethanol yields of both SSF and SSCF were decreased from 96.3% to 88.9% and from 116.6% to 92.4%, respectively. In addition, the smallest inoculum size (optical density of 0.25) resulted in the highest ethanol production (20.5 g/L).

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Importance of redefinition of corn stover harvest time to enhancing non-food bio-ethanol production

Cited by 24 publications

References 39 publications

Production of Biofuels from Biomass as an Approach Towards Sustainable Development: A Short Review

Production of Biofuels from Biomass as an Approach Towards Sustainable Development: A Short Review

Food waste biorefinery advocating circular economy: Bioethanol and distilled beverage from sweet potato

Effects of Additional Xylanase on Saccharification and Ethanol Fermentation of Ammonia-Pretreated Corn Stover and Rice Straw

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