scholarly journals Ethanol Production, Current Facts, Future Scenarios, and Techno-Economic Assessment of Different Biorefinery Configurations

2020 ◽  
Author(s):  
Jesús David Coral Medina ◽  
Antonio Irineudo Magalhaes Jr
Keyword(s):  
Ethanol Production ◽  
First Generation ◽  
Value Added ◽  
Economic Assessment ◽  
Raw Material ◽  
Socioeconomic Impact ◽  
Attractive Alternative ◽  
Fuels And Chemicals ◽  
Co2 Release

Currently, the continuous depletion of non-renewable resources of fuels and chemicals has promoted the research and development of different alternatives for the replacement of fossil resources as the feedstock of fuels and chemicals. At present, one of the most important biofuels in the current economy, is bioethanol, contributing to 65% of the total biofuels production. The production of bioethanol is an attractive alternative because it would be produced using indigenous and native raw material, therefore, the socioeconomic impact mainly in developing countries would be measured by the economic incomes and increase the quality of life of small and middle farmers. The first-generation ethanol production from sugarcane, corn, or beet sugar is broadly implemented at an industrial scale. However, the second-generation ethanol (2GE) is currently still in development stages, looking for different alternatives according to each region under study. The 2GE is also subject of diverse opinions about its economic viability and its real impact on the environment, especially due to the CO2 footprint. Consequently, this chapter has presented an overview of 2GE production, the possibilities of co-production of molecules of high value-added, and their economic and environmental assessment, including CO2 release, water consumption, solid residues disposal, and economic analysis to determine the best bioethanol based biorefinery configuration.

QUALIDADE DO CALDO PARA PRODUÇÃO DE ETANOL EM CULTIVARES DE SORGO SACARINO SOB ADUBAÇÃO NITROGENADA

2017 ◽  
Vol 16 (3) ◽  
pp. 388
Author(s):  
CRISTÓBAL SOTO SOLANO ◽  
NIRALDO JOSÉ PONCIANO ◽  
ROGÉRIO FIGUEIREDO DAHER ◽  
RAFAEL AUGUSTO DA COSTA ◽  
PAULO MARCELO DE SOUZA ◽  
...  
Keyword(s):  
Ethanol Production ◽  
Nitrogen Fertilization ◽  
Ethanol Yield ◽  
Raw Materials ◽  
Raw Material ◽  
Maximum Value ◽  
Total Reducing Sugars ◽  
Nitrogen Rates

 RESUMO - O sorgo sacarino tem potencial de uso como fonte de matéria-prima para a produção de bioetanol. Objetivou-se, com este estudo, analisar o efeito da adubação nitrogenada de cobertura na qualidade do caldo para produção de etanol de quatro cultivares de sorgo sacarino. O experimento foi conduzido em Campos dos Goytacazes- RJ, de janeiro a maio de 2014. Foram estudadas quatro cultivares de sorgo sacarino: BRS 506, BRS 508, BRS 509 e BRS 511 e cinco de doses de nitrogênio (0, 80, 160, 240 e 320 Kg ha-1), aplicadas aos 25 e 45 dias após semeadura. Os resultados mostraram que valor Brix, açúcares redutores totais, açúcares totais recuperáveis, volume do caldo e rendimento de etanol foram afetados pela adubação nitrogenada. Para todas as características, o valor máximo foi obtido pela dose de 240 kg de N ha-1. Entre as cultivares, a BRS 506 mostrou-se superior em produção de caldo e rendimento de etanol. Enquanto a BRS 511 destacou-se nos atributos ART e ATR, e a cultivar BRS 508 sobressaiu-se no valor Brix. A cultivar BRS 506 apresentou melhor resultado combinado, com maior volume de caldo e rendimento de etanol com as doses de 204 e 212 kg N ha-1, respectivamente. Palavras-chave: biocombustíveis, rendimento de álcool carburante, atributos industriais, caracterização da matéria prima, genótipos. QUALITY OF BROTH FOR ETHANOL PRODUCTION IN CULTIVARS OF SACARINE SORGHUM UNDER NITROGEN FERTILIZATION  ABSTRACT - Sweet sorghum has potential as a source of raw material for the production of bioethanol. The objective of this study was to analyze the effect of nitrogen topdressing on the quality of the juice for ethanol production from four cultivars of sorghum. The experiment was conducted in Campos, State of Rio de Janeiro, Brazil, from January to May 2014. Four cultivars of sorghum: BRS 506, BRS 508, BRS 509 and BRS 511 were studied, and five nitrogen rates (0, 80, 160, 240 and 320 kg ha-1), applied to 25 and 45 days after sowing. The results showed that the value Brix, total reducing sugars, total recoverable sugars, broth volume and ethanol yield were affected by nitrogen fertilization. For all features, the maximum value was obtained for the dose of 240 kg N ha-1. Among cultivars, BRS 506 was superior in production of broth and ethanol yield. BRS 511 stood out in the attributes ART and ATR, and BRS 508, in value Brix. BRS 506 had better combined result of higher volume of juice and ethanol yield with doses of 204 and 212 kg N ha-1, respectively Keywords: biofuels, fuel ethanol output, industrial attributes, characterization of raw materials, genotypes.   

scholarly journals SUPPLY CHAIN AND VALUE-ADDED ANALYSIS OF LAHAT COFFEE ON COFFEE SHOP IN PALEMBANG CITY

2021 ◽  
Vol 5 (1) ◽  
pp. 126-133
Author(s):  
Afriyani Afriyani ◽  
Muhammad Yazid ◽  
Desi Aryani
Keyword(s):  
Supply Chain ◽  
Value Added ◽  
Raw Material ◽  
Added Value ◽  
Coffee Bean ◽  
Coffee Shop ◽  
Robusta Coffee ◽  
Coffee Farmers ◽  
Coffee Shops

Lahat is one of the Robusta coffee production centers in South Sumatra. The coffee beansproduced by this district are often used as raw material in the coffee shop in Palembang because of thedistinctive taste and aroma that coffee lovers love. Coffee shops opens new opportunities for Robustacoffee farming. This study aims to analyze the flow of the supply chain and the added value of Lahatcoffee beans used by coffee shop. This research was conducted through a survey of four coffee shops inPalembang. The results showed that there are two supply chain lines, (1) coffee farmers - collectors -retailers - market traders - consumers; (2) coffee farmers - processors - coffee shops - consumers. Thesecond pattern is better and more profitable than the first pattern because the quality of the coffeeproduced is higher. The average added value obtained from processing one kilogram of coffee cherriesinto ground coffee is Rp. 158,132.94, coffee bean into green bean is Rp. 427,798.55, and green beaninto a cup of coffee is Rp. 1,029,269.00. This value indicates that processing the coffee cherries intopowder and processing the selected coffee cherries in coffee shop are profitable.

scholarly journals ETHANOL PRODUCTION FROM COCOYAM (Хanthosoma sagittifolium): APPLICATION OF THERMODYNAMIC-TOPOLOGICAL ANALYSIS

2018 ◽  
Vol 13 (2) ◽  
pp. 40-50
Author(s):  
S. Serna-Loaiza ◽  
Yu. A. Pisarenko ◽  
C. A. Cardona
Keyword(s):  
Ethanol Production ◽  
Environmental Protection Agency ◽  
Raw Materials ◽  
Starch Content ◽  
Topological Analysis ◽  
Economic Assessment ◽  
Raw Material ◽  
Design Stage ◽  
Tropical Plant ◽  
Thermodynamic Topological Analysis

Cocoyam (Xanthosoma sagittifolium (L.) Schott) is a tropical plant of the family of Araceas. Nigeria, China and Ghana are the countries that currently own most of the world production of this plant. In Colombia, there are not extensive crops of this plant, but it is used for animal feeding mainly. The plant has an aerial part with a high content of protein (leaves) and a tuber with an average starch content about 25% w/w. Compared to others starchy raw materials, this is a high value. Due to this fact this first-generation starchy material could be considered as a possible feedstock for the production of ethanol. Process design must ensure that the most advanced concepts are applied at the design and processing stage for every raw material to ensure efficient and more sustainable processes. For this reason, thermodynamic-topological analysis was used for the design of the stage of the produced ethanol purification. This work presents the process of ethanol production using cocoyam tuber. The software Aspen Plus v8.6 (Aspen Technology, Inc., USA) was used for the techno-economic assessment, and the Waste Reduction Algorithm (WAR) of the Environmental Protection Agency of the EE.UU. (EPA) was used to measure the environmental performance. The obtained production cost was 1,6 USD per kilogram, and the environmental impact was very low. This is an excellent incentive to promote the application of this feedstock to obtain a feasible alternative for the production of ethanol. Additionally, the use of thermodynamic-topological analysis in the design stage of the purification stage of the process proved to be very useful and easily applied.

scholarly journals Integration of First- and Second-generation Bioethanol Production from Beet molasses and Distillery Stillage After Dilute Sulfuric Acid Pretreatment

2021 ◽  
Author(s):  
D. Mikulski ◽  
G. Kłosowski
Keyword(s):  
Ethanol Production ◽  
First Generation ◽  
Second Generation ◽  
Raw Material ◽  
Dilute Acid Pretreatment ◽  
Acid Pretreatment ◽  
Fourfold Increase ◽  
Beet Molasses ◽  
Dilute Sulfuric Acid Pretreatment ◽  
By Products

AbstractThe possibility of using waste distillery stillage (first-generation technology) after dilute acid pretreatment, as a medium for the preparation of beet molasses mash, for ethanol production according to the simultaneous saccharification and fermentation (SSF) technology, was assessed. The combination of lignocellulosic hydrolysates made from acid-pretreated stillage with sugar-rich beet molasses is an effective way of utilizing the first-generation ethanol production by-products in the second-generation ethanol production technology. It was demonstrated that the final ethanol concentration could be as high as 90 g/L. The process yield was over 94% of the theoretical yield when the molasses was diluted using acid-pretreated maize distillery stillage. An attempt to increase the pool of fermentable sugars by using cellulases to hydrolyze cellulose failed due to product inhibition in the fermentation medium with a high glucose concentration. A more than threefold increase in the concentration of ethyl acetate (even up to 924.4±11.8 mg/L) was observed in the distillates obtained from the media incubated with cellulases. The use of beet molasses combined with the hydrolysate of pretreated distillery stillage also changed the concentration of other volatile by-products. An increase in the concentration of aldehydes (mainly acetaldehyde to a concentration of above 1500 mg/L), methanol, 1-propanol, and 1-butanol was observed, while the concentration of higher alcohols (isobutanol, 2-methyl-1-butanol, 3-methyl-1-butanol) decreased. Interestingly, the use of cellulases in fermentation media from molasses and stillage hydrolysates resulted in an average fourfold increase in the concentration of this ester to a maximum level of 924.4±11.8 mg/L. Hydrolysates made from acid-pretreated distillery stillage, combined with sugar-rich beet molasses to boost the efficiency of the conversion process, can be successfully used in the production of second-generation fuel ethanol. However, further optimization of the cellulose enzymatic hydrolysis process is required for efficient use of the raw material.

scholarly journals Production, composition and characteristics of organic hard cheese

2016 ◽  
Vol 32 (4) ◽  
pp. 393-402 ◽  
Author(s):  
Anka Popovic-Vranjes ◽  
Snezana Paskas ◽  
Anka Kasalica ◽  
Marija Jevtic ◽  
Milka Popovic ◽  
...  
Keyword(s):  
New Technologies ◽  
Value Added ◽  
Organic Production ◽  
Raw Material ◽  
Added Value ◽  
Dairy Farmers ◽  
Standards And Regulations ◽  
Hard Cheese ◽  
New Jobs

Organic cheeses are value added products that provide small dairy farmers with a viable source of income and has the potential to revitalize farms, provide new jobs, and develop new cheese varieties with unique flavours for consumers to experience. Production of hard organic cheese must comply with organic standards and regulations of organic production. Whole organic milk that does not contain residues of pesticides, hormones and antibiotics represents a quality raw material for hard organic cheese with added value. Together with the existing, producers develop and create new technologies and new branded products which are more original and recognizable. The goal of any technology is obtaining technologically reproducible protocol and constant uniform quality of the cheese with desired properties. In this paper some variables which influence quality of organic hard cheese were investigated. Tested samples of hard organic cheese from different production time showed consistent quality and obtained parameters followed the standards of full-fat hard cheeses.

scholarly journals Development opportunities of biomass-based ethanol production in relation to starch- and cellulosebased bioethanol production

2013 ◽  
pp. 71-75
Author(s):  
Zoltán Balla
Keyword(s):  
Ethanol Production ◽  
Life Cycle Analysis ◽  
Liquid Fuel ◽  
First Generation ◽  
Second Generation ◽  
Point Of View ◽  
Raw Material ◽  
Bioethanol Production ◽  
Fuel Production ◽  
Second Generation Bioethanol

The biomass is such a row material that is available in large quantities and it can be utilizied by the biotechnology in the future. Nowadays the technology which can process ligno cellulose and break down into fermentable sugars is being researched. One possible field of use of biomass is the liquid fuel production such as ethanol production. Based on the literary life cycle analysis, I compared the starch-based (first generation) to cellulose-based (second generation) bioethanol production in my study considering into account various environmental factors (land use, raw material production, energy balance). After my examination I came to the conclusion that the use of bioethanol, independent of its production technology, is favorable from environmental point of view but the application of second generation bioethanol has greater environmentally benefits.

Controllable Encapsulation of Silver Nanoparticles by Porous Pyridine-Based Covalent Organic Frameworks for Efficient CO2 Conversion Using Propargylic Amines

2021 ◽  
Author(s):  
Yize Zhang ◽  
Xingwang Lan ◽  
Fanyong Yan ◽  
Xingyue He ◽  
Juan Wang ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Value Added ◽  
Attractive Alternative ◽  
Co2 Conversion ◽  
Covalent Organic Frameworks ◽  
Fuels And Chemicals

Conversion of CO2 into value-added chemicals is an attractive alternative to produce valuable fuels and chemicals. In this work, we demonstrate two pyridine-based covalent organic frameworks (COFs) with rich porosity...

Utilization of Lamp Shell (Lingula unguis) into Value Added Products

2012 ◽  
Vol 3 (1) ◽  
Author(s):  
Daisy G. Cari-An ◽  
Rosebella L. Malo
Keyword(s):  
Experimental Study ◽  
Sensory Evaluation ◽  
Coastal Zone ◽  
Value Added ◽  
Quality Attributes ◽  
Raw Material ◽  
Hedonic Scale ◽  
Value Added Products

An experimental study was conducted on the utilization of lamp shell locally known as ugpan to determine the value added products from it. The species of ugpan used was Lingula unguis and was collected in the coastal zone of Nabuswang, Canmoros, Binalbagan, Negros Occidental. Ugpan was tested as raw material into value added products. The meat was utilized into ugpan nuggets and the pedicle was used into crispy ugpan. The liking of ugpan nuggets and crispy ugpan were determined using sensory evaluation. The acceptability of the quality attributes of the value added product was determined using the 9-point hedonic scale. The liking of crispy ugpan showed 80 and 90 for the ugpan nuggets. The acceptability of crispy ugpan had a mean of 8.33 which meant like very much or very much acceptable, while the ugpan nuggets had a mean of 8.0 which meant like very much. The overall quality had a mean score of higher than 8 which means that the ugpan can be utilized into value added products. Improving the quality of ugpan nuggets can increase the hedonic score for the acceptance of the product. The result of this study will served as the extension project of the institution.   Keywords - Technology, crispy ugpan, Lingula unguis, quality, ugpan nuggets, Negros Occidental, Philippines

scholarly journals Evaluation of the quality of wood from naturally fallen tree for the development of products in Design

2021 ◽  
Vol 9 (1) ◽  
pp. 172-187
Author(s):  
Jéssica Ester Elvas Costa ◽  
Claudete Catanhede do Nascimento ◽  
Roberto Daniel de Araújo ◽  
Karla Mazarelo Maciel Pacheco
Keyword(s):  
Sustainable Use ◽  
Small Diameter ◽  
Value Added ◽  
Economic Benefits ◽  
Raw Material ◽  
Machining Processes ◽  
Conservation Units ◽  
Cultural Aspects ◽  
Design Projects

The sustainable use of forest resources in the Amazon is one of the precautions attributed to Conservation Units of sustainable use, and among them, the RESEX Auati-Paraná stands out in this study. In this area, a large volume of naturally fallen trees of various species belonging to different diametric classes were inventoried, with a higher incidence of trees with small diameter. Therefore, it is important to highlight the potential use of this raw material for development high value-added products as a sustainable income generation opportunity for community members. Thus, the objective of this research was to assess the quality of naturally fallen species through the development of products with a fine finish through technical design projects. For this, was used, defining the types of products and species (Micrandropsis scleroxylon and Simarouba amara) for the study, characterizing them, surveying the cultural aspects of the RESEX, manufacture of physical products prototypes and analyzing the quality of the wood workability during machining processes. The results obtained through the design projects, demonstrated the quality and feasibility of using wood from naturally fallen trees for the manufacture of products, being able to be explored as a sustainable alternative to generate economic benefits to the community through the valorization of such natural resources of the Amazon rainforest.

scholarly journals Sweet sorghum: broth clarification with enzymatic treatment increases the quality of the fermentation wort for ethanol production

2021 ◽  
Vol 37 ◽  
pp. e37094
Author(s):  
Osania Emerenciano Ferreira ◽  
Gustavo Henrique Gravatim Costa ◽  
Aline Ferreira Silva ◽  
Nayara Abrão Montijo ◽  
Miguel Angelo Mutton ◽  
...  
Keyword(s):  
Ethanol Production ◽  
Sweet Sorghum ◽  
Fermentation Broth ◽  
Enzymatic Treatment ◽  
Raw Material ◽  
Biofuel Production ◽  
Amylolytic Enzymes ◽  
Fermentation Efficiency ◽  
Sorghum Genotypes

Sweet sorghum is currently being evaluated throughout the world as a raw material for biofuel production because its stem juices are rich in sugars that can be directly fermented to ethanol. In this work, the fermentative efficiency of three sweet sorghum genotypes was evaluated, aiming at ethanol production, harvested in two seasons, clean and whole stems, and the treatment of the juice and broth with amylolytic enzymes in order to use the present starch to increase the production of ethanol. The experiment was carried out in the 2013/2014 harvest, in the municipality of Jaboticabal, São Paulo, Brasil, located at 21°14’05’’S and 48°17’09’’W. The experimental design was completely randomized, with sub-subdivided plots and four replications. The primary treatments were the sweet sorghum genotypes (CV147, CV198, and BRS508), the secondary treatments, the type of harvest (whole stems and clean stems); the tertiary the two sampling times (102 and 116 days after sowing - d.a.s) and the quaternary the application of enzymes. In the fermentation process, the yeast PE-2 was used, at the end, the wine was recovered and characterized. Fermentation efficiency and liters of ethanol per ton of sorghum were calculated. The clarification of the juice with enzymatic treatment increases the quality of the fermentation broth and makes it possible to obtain wines with lower levels of RRTs and Brix. Fermentation efficiency is not affected by the genotype; however, it is influenced by the time of harvest and the technological quality of the juice. The use of amylolytic enzymes makes it possible to obtain wines with lower levels of RRTS and Brix. The best period of industrialization was at 102 d.a.s., and the processing of whole stalks resulted in less ethanol production.

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