Integrated furfural and first generation bioethanol production: process simulation and techno-economic analysis

Silva, J. F. L.; Selicani, M. A.; Junqueira, Tassia L.; Klein, Bruno Colling; Júnior, Sílvio Vaz; Bonomi, Antonio

doi:10.1590/0104-6632.20170343s20150643

Cited by 39 publications

(29 citation statements)

References 17 publications

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“…Many of these base chemicals [5,6] can be successfully obtained from biomass. One example is furfural, a platform chemical with great market potential [7][8][9]. New chemical products made from furfural can be used in the production cycle, e.g., as alternative fuels for power boilers or as liquid fuels in transport.…”

Section: Introductionmentioning

confidence: 99%

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Potential of Waste Biomass from the Sugar Industry as a Source of Furfural and Its Derivatives for Use as Fuel Additives in Poland

et al. 2020

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Poland is one of the leading producers of sugar from sugar beet in Europe. However, the production of sugar generates large amounts of lignocellulosic waste, in the form of beet pulp and leaves. Currently, this waste is not reutilized in the chemical industry, but is only used as food for farm animals. This paper assesses the potential of using bio-waste from the sugar industry as a raw material for the production of furfurals via acid hydrolysis. Further processing of furfural into derivatives such as furfuryl alcohol (FA) or tetrahydrofurfuryl alcohol (THFA) could increase the economic profitability of the initiative. Furfuryl alcohol can be used as a fuel additive in sugar factories. Tetrahydrofurfuryl alcohol can be used as a component in agricultural fertilizers, increasing the yield of sugar beet. This approach reduces the amount of post-production waste and brings the sugar industry closer to the concept of a circular economy.

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Section: Introductionmentioning

confidence: 99%

“…Figure 1. Block diagram of a bio-refinery producing ethanol, furfural, and electricity[7].…”

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confidence: 99%

Potential of Waste Biomass from the Sugar Industry as a Source of Furfural and Its Derivatives for Use as Fuel Additives in Poland

et al. 2020

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“…In addition to ethylene, furfural is also considered a building block candidate derived from biomass [ 14 , 15 , 16 , 17 ]. The most efficient and inexpensive way to obtain furfural from biomass is by using homogeneous catalysts, such as H 2 SO 4 , HNO 3 , and HCl [ 2 , 18 ].…”

Section: Introductionmentioning

confidence: 99%

Niobium on BEA Dealuminated Zeolite for High Selectivity Dehydration Reactions of Ethanol and Xylose into Diethyl Ether and Furfural

et al. 2020

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In this work, we investigated the role of solid-state dealumination by (NH4)2SiF6 (25% Al removal and 13% Si insertion), the impregnation of niobium (10, 18, and 25 wt. %) on dealuminated *BEA (DB) zeolite and their catalytic properties in ethanol and xylose transformations. Among all the studied catalysts, 18%Nb-DB showed increased mesoporosity and external areas. A leveling effect in the number and strength of the proposed two sites (Brønsted and Lewis) present in the catalyst (n1 = 0.24 mmol g−1, −ΔH1 = 49 kJ mol−1, and n2 = 0.20 mmol g−1, –ΔH2 = 42 kJ mol−1) in the catalyst 18%Nb-DB, might be responsible for its good activity. This catalyst presented the highest selectivity for diethyl ether, DEE (97%) with 61% conversion after 50 ethanol pulses at 230 °C (turnover number, TON DEE = 1.15). These features allowed catalytically fruitful bonding of the ethanol molecules to the neighboring sites on the channels, facilitating bimolecular ether formation through a possible SN2 mechanism. The same catalyst was active and selective for transformation of xylose at 180 °C, showing 64% conversion and 51% selectivity for furfural (TON Furfural = 24.7) using water as a green solvent.

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“…As a lignocellulosic material, straw has several potential applications, including production of electricity [1,11], biofuels [12,13], and biochemicals [14,15]. Part of this biomass is normally recovered along with sugarcane stalks (as vegetable impurities), but strategies to recover higher proportions have been proposed such as integral harvesting and baling [1,[16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Electricity Production from Sugarcane Straw Recovered Through Bale System: Assessment of Retrofit Projects

et al. 2019

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Sugarcane straw has become available in large quantities in the field due to transition from manual to mechanical harvesting. Straw can be used as fuel for cogeneration systems of sugarcane mills to increase surplus electricity for commercialization. However, the exploitation of straw potential is still limited due to some challenges related to its agricultural recovery and industrial processing. The retrofit (additional installation) of existing sugarcane mills to process straw is an alternative to reduce investment and to allow a gradual utilization of this biomass. In this work, techno-economic and environmental assessment of straw recovery through bale system to increase electricity export was assessed. Two scenarios with straw recovery and processing were defined to take advantage of an existing cogeneration system, considering its operation in the season and off-season periods. An increase of up to 57% on surplus electricity was achieved. Both scenarios resulted in economically feasible alternatives. However, results were very sensitive to the variations on electricity prices and straw costs. In terms of environmental benefits, the bioelectricity presented a great potential to mitigate greenhouse gas emissions compared with natural gas-based electricity. The higher electricity surplus also affects the carbon intensity of ethanol, which can lead to indirect gains when the Brazilian program for biofuels incentive is implemented.

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Integrated furfural and first generation bioethanol production: process simulation and techno-economic analysis

Cited by 39 publications

References 17 publications

Potential of Waste Biomass from the Sugar Industry as a Source of Furfural and Its Derivatives for Use as Fuel Additives in Poland

Potential of Waste Biomass from the Sugar Industry as a Source of Furfural and Its Derivatives for Use as Fuel Additives in Poland

Niobium on BEA Dealuminated Zeolite for High Selectivity Dehydration Reactions of Ethanol and Xylose into Diethyl Ether and Furfural

Electricity Production from Sugarcane Straw Recovered Through Bale System: Assessment of Retrofit Projects

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