Recent trends on techno-economic assessment (TEA) of sugarcane biorefineries

Mandegari, Mohsen; Farzad, Somayeh; Görgens, Johann F.

doi:10.18331/brj2017.4.3.7

Cited by 61 publications

(29 citation statements)

References 67 publications

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“…Among the different process simulation software, Aspen Plus has been applied broadly for simulation of a large number of biorefineries . The Aspen Plus property database compiled by the National Renewable Energy Laboratory (NREL, USA) provides the properties of some components that are not found in the Aspen Plus database .…”

Section: Simulation Developmentmentioning

confidence: 99%

“…The labor burden was estimated as 90% of the total labor and supervision costs, which were estimated from reported literature . Maintenance was estimated as 3% of the inside battery limit (ISBL), and the property and insurance tax was estimated as 0.7% of the FCI . The operating labor cost was calculated from salaries reported in the literature…”

Section: Economic Evaluation Approachmentioning

confidence: 99%

“…Biorefining, which is the integral conversion of several bio‐based materials into valuable products and energy, has in recent times been researched extensively as a way to alleviate the many global concerns associated with high dependence on fossil reserves . To make biorefineries economically viable and sustainable, much research has been directed towards the development of more efficient conversion technologies and biorefinery pathway configurations . A refinery that uses carbohydrates and sugars primarily containing glucose, fructose, xylose, and sucrose for the production of biofuels and biochemicals through a biorefinery is known as a first‐generation (1G) biorefinery.…”

Section: Introductionmentioning

confidence: 99%

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Comparison of immobilized and free enzyme systems in industrial production of short‐chain fructooligosaccharides from sucrose using a techno‐economic approach

Bedzo

Mandegari

Görgens

2019

Biofuels Bioprod Bioref

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Short-chain fructooligosaccharides (scFOS) are nutraceuticals with numerous applications in the food and pharmaceutical industries. The production of scFOS using immobilized biocatalysts offers some functional and technical advantages over free enzyme counterparts. To investigate the economic potential of the immobilized enzyme system relative to the free enzyme system, a techno-economic comparison was conducted on three methods of scFOS production (powder and syrup forms) at a capacity of 2000 t per annum (tpa) by enzymatic synthesis from sucrose: the free enzyme (FE), calcium alginate immobilized enzyme (CAIE), and amberlite IRA 900 immobilized enzyme (AIE) systems. These processes were simulated in Aspen Plus to obtain the mass and energy balances and to estimate the operating and capital costs, followed by economic evaluation and sensitivity analysis. Profitability analysis showed that all three systems are economically viable as their associated minimum selling prices (MSP) were well below the scFOS market price of 5 $ kg −1 . However, the FE system was the most profitable with the lowest MSP of 2.61 $ kg −1 because the savings on cost as a result of enzyme immobilization could not offset the additional costs associated with immobilization. Sensitivity analysis demonstrated that total operating cost, fixed capital investment, and internal rate of return (% IRR) have the greatest effects on the MSP. Furthermore, the syrup form of scFOS production leads to 29% less MSP, compared to powder form. In addition, the studied plant capacities of 5000 and 1000 tpa showed 10% and 16% reductions on MSP respectively.

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Section: Simulation Developmentmentioning

confidence: 99%

Section: Economic Evaluation Approachmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Comparison of immobilized and free enzyme systems in industrial production of short‐chain fructooligosaccharides from sucrose using a techno‐economic approach

Bedzo

Mandegari

Görgens

2019

Biofuels Bioprod Bioref

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“…It is based on the concept that the existing oil-based economy is going to shift towards a biomass-based economy and going to make positive social impacts on communities. 145,146 The differences between biorefineries and petroleum refineries are large: (1) the raw materials are completely different, biomass is a renewable resource produced from recently living materials, while crude oil is produced from million of years of biodegradation of living organisms at that time, 147 (2) their complexity, as biorefineries integrate a large number of mature and emerging technologies for obtaining products, 148 and (3) the broad spectrum of products obtained in biorefineries including food-grade products which cannot be obtained from petroleum refineries. 149 The first try to develop a biorefinery was not very promising, ie, for essential oil production, only 1% to 2% of the raw material conversion was achieved and 98% of raw material was turned waste.…”

Section: The Concept Of Biorefinerymentioning

confidence: 99%

Future prospects of delignification pretreatments for the lignocellulosic materials to produce second generation bioethanol

Baig

Turcotte

2019

Int J Energy Res

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Summary Production of bioethanol is winning support from masses because it is a workable choice to solve the problems associated with the fluctuating prices of crude petroleum oil, climatic change, and reducing non‐renewable fuel reserves. First‐generation biofuels are produced directly from food crops. The biofuel (bioethanol, biodiesel) is ultimately derived from the starch, sugar, animal fats, and vegetable oil that these crops provide. It is important to note that the structure of the biofuel itself does not change between generations, but rather the source from which the fuel is derived changes. Corn, wheat, and sugar cane are the most commonly used first‐generation bioethanol feed stocks. Lignocellulosic materials are used as a feed stock for the production of second‐generation bioethanol. The major production steps are (1) delignification, (2) depolymerisation, and (3) fermentation. Agricultural residues are waste materials produced through the processing of agricultural crops. The main reason to use of these agricultural residues to produce bioethanol is to convert waste to value added products. The main challenges are the low yield of the cellulosic hydrolysis process due to the presence of lignin and hemicellulose with cellulose. Pretreatments of lignocellulosic materials to remove lignin and hemicellulose are the techniques used to enhance the hydrolysis. Present review article comprehensively discusses the different pretreatment methods of delignification for ethanol production. Published literature on pretreatments from 1982 to 2018 has been studied. Perspectives, gaps in studies, and recommendations are given to fully describe implementation of eight prominent pretreatments (milling, pyrolysis, organic solvents, steam explosion, hot water treatments, ozonolysis, enzymatic delignification, and genetic modification) for future research. The energy and environmental features of lignocellulosic materials are elaborated to show a sustainable aspect of second‐generation biofuel. It was felt necessary to discuss the concept of bio refinery to make biofuel production financially more attractive as well because the future prospects of second‐generation biofuel are promising.

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“…An optimization based study provides an alternative to systematically evaluate potential options and determine the optimum one based on a specific criteria [7,8]. Several simulation and mathematical modeling studies have been reported in literature focusing on biorefinery optimization for a sugarcane or bagasse based biorefinery [6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Assessment of bagasse and trash utilization for ethanol production: A case study in india

Vikash

Mandade

Shastri

2018

Env Prog and Sustain Energy

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Retrofitting existing sugar mills to produce ethanol from sugarcane bagasse provides a significant opportunity in India to meet the nation's liquid transportation fuel demands. Utilization of sugarcane trash in the sugar mill can enhance the economic feasibility of this approach. This work developed an optimization model to determine the optimal distribution of bagasse and trash for ethanol production while simultaneously ensuring energy sufficiency of the sugar mill. A superstructure of sugar mill integrated with a second generation ethanol facility along with trash utilization and lignin valorization processes is developed. The model determines the break‐even selling price (BESP) of ethanol by optimizing the distribution of bagasse and trash subjected to the mass and energy balance constraints and cost functions. The application of the model for a sugar mill with a throughput of 150 Mg (Mega grams)/h of sugarcane showed the ethanol BESP to be Rs. 63/L when trash and lignin was available along with bagasse for heat production. Trash retention on farm increased the BESP to Rs. 117/L, indicating the economic value of trash utilization. However, on‐farm trash retention led to about 82% savings in GHG emissions due to reduced fertilizer use. Lignin valorization was found to be economically infeasible. © 2018 American Institute of Chemical Engineers Environ Prog, 37: 1901–1907, 2018

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Recent trends on techno-economic assessment (TEA) of sugarcane biorefineries

Cited by 61 publications

References 67 publications

Comparison of immobilized and free enzyme systems in industrial production of short‐chain fructooligosaccharides from sucrose using a techno‐economic approach

Comparison of immobilized and free enzyme systems in industrial production of short‐chain fructooligosaccharides from sucrose using a techno‐economic approach

Future prospects of delignification pretreatments for the lignocellulosic materials to produce second generation bioethanol

Assessment of bagasse and trash utilization for ethanol production: A case study in india

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