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Dissertations / Theses on the topic 'Sugarcane ethanol production'

Author: Grafiati

Published: 4 June 2021

Last updated: 3 February 2022

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1

Dodo, Charlie Marembu. "Ethanol production from lignocellulosic sugarcane leaves and tops." Thesis, University of Fort Hare, 2014. http://hdl.handle.net/10353/d1019839.

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Various methods for the production of bioethanol using different feedstocks have been researched on. In most work on bioethanol synthesis from sugar cane, tops and leaves have been regarded as waste and generally removed and thrown away. In this work, lignocellulosic sugarcane leaves and tops were not discarded but instead used as biomass to evaluate their hydrolyzate content. The leaves and tops were hydrolysed using different methods, namely concentrated acid, dilute acid pre-treatment with subsequent enzyme hydrolysis and compared with a combination of oxidative alkali pretreatment and enzy

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2

Carvalho, Danila Morais de. "Some factors affecting the production of second generation ethanol from eucalyptus, sugarcane bagasse and sugarcane straw." Universidade Federal de Viçosa, 2016. http://www.locus.ufv.br/handle/123456789/8390.

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Submitted by Marco Antônio de Ramos Chagas (mchagas@ufv.br) on 2016-08-25T17:49:22Z No. of bitstreams: 1 texto completo.pdf: 4509982 bytes, checksum: 1ddc3e8d6d2fd98d0186c187ff37a974 (MD5)<br>Made available in DSpace on 2016-08-25T17:49:22Z (GMT). No. of bitstreams: 1 texto completo.pdf: 4509982 bytes, checksum: 1ddc3e8d6d2fd98d0186c187ff37a974 (MD5) Previous issue date: 2016-02-22<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>O etanol tem sido considerado um promissor biocombustível para substituir combustíveis fósseis. O uso estratégico de eucalipto, bagaço e palha

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3

Budhram, Dowlat Ram. "Sugarcane-based ethanol : production possibilities and trade implications for Caribbean countries." The Ohio State University, 1986. http://rave.ohiolink.edu/etdc/view?acc_num=osu1231181737.

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4

Budhram, Dowlat. "Sugarcane-based ethanol : production possibilities and trade implications for Caribbean countries /." The Ohio State University, 1986. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487265555440978.

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5

Monteiro, Nathalia Ferreira. "UNDERSTANDING THE LINK BETWEEN ETHANOL PRODUCTION AND FOOD PRICES." OpenSIUC, 2009. https://opensiuc.lib.siu.edu/theses/73.

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Food prices have increased rapidly in recent years, and so has ethanol consumption. Some studies have claimed that there is a connection between those two. Net exporters of food tend to benefit from higher prices, while regions that are net importers of food, tend to be adversely affected. The large amount of poor countries in the second group justifies an investigation of the causes of increasing food prices. This thesis aims to contribute to the discussion, analyzing, theoretically and empirically, the impact that the diversion of feedstock from food to ethanol production has on food prices.

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6

Benjamin, Yuda L. "Sugarcane cultivar selection for ethanol production using dilute acid pretreatment, enzymatic hydrolysis and fermentation." Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/86525.

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Thesis (PhD)--Stellenbosch University, 2014.<br>ENGLISH ABSTRACT: The development of ―energycane‖ varieties of sugarcane for ethanol production is underway, targeting the use of both sugar juice (first generation ethanol) and bagasse (second generation ethanol). Nevertheless, identification of the preferred varieties represents the biggest challenge to the development of energycane due to large number of samples produced during breeding. In the present study, dilute acid pretreatment, enzymatic hydrolysis and fermentation processes were used to evaluate the processability of bagasse (fibrous r

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7

Pinheiro, Francisca Gleyciara Cavalcante. "Lignosulfonates production from lignin extracted sugarcane bagasse." Universidade Federal do CearÃ, 2014. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=13799.

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Universidade Federal do CearÃ<br>The present work aimed at the production of lignosulfonate, based in the lignin extracted from sugarcane bagasse-cane for using in phenolic resins. The extraction of lignin was carried out using the acetosolv process, which was optimised with a central composite design 22 to evaluate the effects of reaction time and temperature on the extraction yield, weight-average (M ̅w) and number-average (M ̅n) molecular weights, relative content of total hydroxyl, phenolic hydroxyl and methoxyl groups. The lignins obtained under conditions that maximized the ext

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8

Galli, Ester. "Frame Analysis in Environmental Conflicts : The case of ethanol production in Brazil." Doctoral thesis, KTH, Industriell ekologi, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-39502.

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Governments and policy-makers are currently dealing with some key issues as energy security in countries dependent on oil imports; global economic development, including increased food production; and controlling global climate change and greenhouse gas emissions. The perception that biofuel could solve these challenges simultaneously has led to the implementation of policy and regulatory mechanisms on the mandatory use of biofuels, resulting in a sharp increase in biofuel production and consumption. Serious concerns about large-scale ethanol production have been raised regarding loss of biodi

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9

Hilares, Ruly Terán. "Hydrodynamic cavitation as a new approach for sugarcane bagasse pretreatment aiming to second generation ethanol production." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/97/97131/tde-07082018-153234/.

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Renewable energy sources have been proposed as a viable option to mitigate the consumption and the dependence of fossil fuels. Among the available alternatives, lignocellulosic biomass has shown great potential for bioenergy generation, and biofuels as ethanol can be obtained by fermentation from sugars present in cellulosic and hemicellulosic fractions of biomass. However, for the efficient release of fermentable sugars during the enzymatic hydrolysis step, a pretreatment process is required to modify the material in its structure and composition. In this context, hydrodynamic cavitation (HC)

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10

Barton, Jason Joseph. "Brazilian sugarcane ethanol production : integration of economic, ecological, and social aspects, and the future of the market." Thesis, University of British Columbia, 2012. http://hdl.handle.net/2429/42272.

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Should the U.S. and others open their economies to importation of Brazilian ethanol? How would this impact the Brazilian economy, ecosystems, and people? Policy makers in the U.S., Europe, and other places have considered reducing barriers to trade as they are working to reduce their dependence on fossil fuels. Brazilian sugarcane ethanol is more efficient in terms of energy, land use, and production costs than other renewable fuels, making it a logical choice for these countries. This dissertation addresses these questions with three studies. The first (Chapter 2) is a cost-benefit analysis o

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11

Woods, Jeremy. "Integrating sweet sorghum and sugarcane for bioenergy: modelling the potential for electricity and ethanol production in SE Zimbabwe." Thesis, King's College London (University of London), 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.434720.

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12

Cherubin, Maurício Roberto. "Soil quality response to land-use change for sugarcane expansion in Brazil." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/11/11140/tde-16062016-160123/.

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Globally, increasing demands for biofuels have intensified the rate of land-use change (LUC) for expansion of bioenergy crops. In Brazil, the world\'s largest sugarcane-ethanol producer, sugarcane area has expanded by 35% (3.2 Mha) in the last decade. Sugarcane expansion has resulted in extensive pastures being subjected to intensive mechanization and large inputs of agrochemicals, which have direct implications on soil quality (SQ). We hypothesized that LUC to support sugarcane expansion leads to overall SQ degradation. To test this hypothesis we conducted a field-study at three sites in the

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13

Van, Der Westhuizen Willem Andries. "A Techno-economic evaluation of integrating first and second generation bioethanol production from sugarcane in Sub-Saharan Africa." Thesis, Stellenbosch : Stellenbosch University, 2013. http://hdl.handle.net/10019.1/85611.

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Thesis (MScEng)-- Stellenbosch University, 2013.<br>ENGLISH ABSTRACT: Climate change that results from greenhouse gases (GHG’s) released from the burning of fossil fuels, together with the rising price of oil, have sparked interest in renewable biofuels. The production of biofuels also presents potential socio-economic benefits. There are two types of technologies for bioethanol production: · First generation bioethanol is produced from food feedstocks such as juice of sugarcane. · Second generation bioethanol is produced from non-food feedstocks (lignocellulosic materials). This projec

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14

Bonato, Filho Gilberto Garcia. "Produção de álcool combustível a partir de subprodutos da fabricação de cachaça para associação de produtores." Universidade Federal de Viçosa, 2013. http://locus.ufv.br/handle/123456789/3658.

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Made available in DSpace on 2015-03-26T13:23:54Z (GMT). No. of bitstreams: 1 texto completo.pdf: 2179833 bytes, checksum: 46f04de1d35f741b6427b36b4c8f8feb (MD5) Previous issue date: 2013-09-25<br>Ethanol production on a large scale has been questioned by segments of the international market, which value clean and social mechanisms in the production of commodities and bioenergy (employment, income, migration, climate change and pollution). Pressures to banning the burning of sugar cane are examples. Ethanol production on a small scale by small and medium farmers can bring benefits that large

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15

Netto, Joviniano Pereira da Silva. "Sistema municipal de meio ambiente e produção de etanol de cana-de-açúcar no Estado de São Paulo: estudos de casos em Brotas e Araraquara." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/18/18139/tde-22032010-160257/.

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Consequências decorrentes da influência antrópica no aquecimento global têm apontado para a real necessidade de utilização de alternativas energéticas renováveis e, dentre estas, dos agrocombustíveis. Nesse contexto, a crescente e significativa demanda interna e externa por etanol de cana-de-açúcar implicam em diversas transformações espaciais em nível nacional, estadual e municipal, movimentando a economia e indicando impactos socioambientais relacionados aos aspectos produtivos, sobretudo ligados à monocultura canavieira. Com o processo de descentralização da gestão ambiental no Brasil, conc

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16

Simon, Vilson Antônio. "Biocombustíveis versus alimentos: análise situacional no Estado de São Paulo." reponame:Repositório Institucional do FGV, 2010. http://hdl.handle.net/10438/8275.

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Submitted by Cristiane Shirayama (cristiane.shirayama@fgv.br) on 2011-05-31T15:57:01Z No. of bitstreams: 1 65080100015.pdf: 10318779 bytes, checksum: 74d1bc9ac331fce11e316e68b71d5c79 (MD5)<br>Approved for entry into archive by Vera Lúcia Mourão(vera.mourao@fgv.br) on 2011-05-31T21:01:35Z (GMT) No. of bitstreams: 1 65080100015.pdf: 10318779 bytes, checksum: 74d1bc9ac331fce11e316e68b71d5c79 (MD5)<br>Approved for entry into archive by Vera Lúcia Mourão(vera.mourao@fgv.br) on 2011-05-31T21:02:42Z (GMT) No. of bitstreams: 1 65080100015.pdf: 10318779 bytes, checksum: 74d1bc9ac331fce11e316e68b71d

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17

Furlan, Felipe Fernando. "Metodologia para guiar o desenvolvimento e implementação industrial de novas tecnologias unindo engenharia econômica e Engenharia de (bio)processos e sistemas : aplicação à produção de etanol de segunda geração." Universidade Federal de São Carlos, 2016. https://repositorio.ufscar.br/handle/ufscar/7404.

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Submitted by Caroline Periotto (carol@ufscar.br) on 2016-09-21T20:12:40Z No. of bitstreams: 1 TeseFFF.pdf: 5653411 bytes, checksum: 875bb8d2ed23313c792c9c246e285a85 (MD5)<br>Approved for entry into archive by Marina Freitas (marinapf@ufscar.br) on 2016-09-23T18:31:05Z (GMT) No. of bitstreams: 1 TeseFFF.pdf: 5653411 bytes, checksum: 875bb8d2ed23313c792c9c246e285a85 (MD5)<br>Approved for entry into archive by Marina Freitas (marinapf@ufscar.br) on 2016-09-23T18:31:11Z (GMT) No. of bitstreams: 1 TeseFFF.pdf: 5653411 bytes, checksum: 875bb8d2ed23313c792c9c246e285a85 (MD5)<br>Made available in

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18

Cheng, Cheng, and 鄭誠. "Ethanol Production from Cellulase Containing Sugarcane Bagasse Produced by Solid State Fermentation Method." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/k44z7d.

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碩士<br>大同大學<br>生物工程學系(所)<br>106<br>Sugarcane bagasse was pre-treated by 1% H2SO4 followed by 2% NaOH. Each pre-treatment process was carried out at 120C for 40 min. The pre-treated sugarcane bagasse (SCB) supplemented with wheat bran in a weight ratio of 4:1 was used as the substrate for cellulase production by solid state fermentation using Trichoderma reesei RUT C30 at 30 C. Cellulase activity of 13.70 2.81 FPU / g-DS was achieved after 6 days’ incubation. 5% (w/v) cellulase containing SCB (CSCB) was directed hydrolyzed at 50C for 4 h, then the hydrolyzed CSCB slurry was cooled to 40C,

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19

Chang, Chih-Yuan, and 張智淵. "Life Cycle Assessment of Bioenergy – An Example of Fuel Ethanol Production from Sugarcane." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/78616909800306197036.

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碩士<br>國立臺北大學<br>自然資源與環境管理研究所<br>94<br>As the global energy reserves become less and less, the problem of “energy crisis” is becoming more serious. A lot of countries pay much attention to seek clean and renewable energy at present. And biofuel has characteristics of great potential, renewable and cleaning etc., considered as a new energy that can solve the energy and environmental problem effectively. As for technology at present, however, using bioenergy for alternative energy source still needs to face some doubt about supply unstable, costly, energy net output negative etc. By the way, this

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