Castor plant for biodiesel, biogas, and ethanol production with a biorefinery processing perspective

Bateni, Hamed; Karimi, Keikhosro; Zamani, Akram; Benakashani, Fatemeh

doi:10.1016/j.apenergy.2014.09.005

Cited by 129 publications

(101 citation statements)

References 48 publications

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“…This biodiesel phase behavior is additionally dependent on temperature -in a ternary methanol-oil-FAME system, Cheng et al (2009) tested different distributions of these three components at three temperatures (20,40, and 60 °C) in facilitating membrane separation. The two-phase region was noticeably narrower at higher temperatures according to experiments.…”

Section: Phase Behavior In Membrane Separationmentioning

confidence: 99%

“…Conventional distillation and evaporation are perhaps by far the most common methods used in biodiesel purification to remove remaining alcohol or water from the crude biodiesel (Atadashi et al, 2011a and b; Stojković et al, 2014). Typically, the unreacted alcohol is separated from biodiesel prior to further purification (Gomes et al, 2011;Moser, 2012;Bateni et al, 2014;Bateni and Karimi, 2016b). In molecular distillation, carried out under high-vacuum, the molecules' free path is longer than the evaporation and condenser surface distance; therefore, most of the evaporated molecules reach the condensing surface without being deflected on collision with foreign gas molecules, resulting in a higher separation yield (Erich, 1982 .…”

Section: Distillationmentioning

confidence: 99%

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A comprehensive review on biodiesel purification and upgrading

2017

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HIGHLIGHTS Various biodiesel purification methods, i.e., equilibrium-based, affinity-based, and reaction-based separation techniques along with membrane technology and solid-liquid separation processes were reviewed.Deoxygenating process via hydrodeoxygenation and decarboxylation/decarbonylation pathways is a common way to upgrade bio-based oils to produce biorenewable diesel with excellent fuel properties. Catalysts and operating conditions, i.e., pressure, temperature, and contact time, are the most important variables in biodiesel upgrading discussed herein. Serious environmental concerns regarding the use of fossil-based fuels have raised awareness regarding the necessity of alternative clean fuels and energy carriers. Biodiesel is considered a clean, biodegradable, and non-toxic diesel substitute produced via the transesterification of triglycerides with an alcohol in the presence of a proper catalyst. After initial separation of the by-product (glycerol), the crude biodiesel needs to be purified to meet the standard specifications prior to marketing. The presence of impurities in the biodiesel not only significantly affects its engine performance but also complicates its handling and storage. Therefore, biodiesel purification is an essential step prior to marketing. Biodiesel purification methods can be classified based on the nature of the process into equilibrium-based, affinity-based, membrane-based, reaction-based, and solid-liquid separation processes. The main adverse properties of biodiesel -namely moisture absorption, corrosiveness, and high viscosity -primarily arise from the presence of oxygen. To address these issues, several upgrading techniques have been proposed, among which catalytic (hydro)deoxygenation using conventional hydrotreating catalysts, supported metallic materials, and most recently transition metals in various forms appear promising. Nevertheless, catalyst deactivation (via coking) and/or inadequacy of product yields necessitate further research. This paper provides a comprehensive overview on the techniques and methods used for biodiesel purification and upgrading. ABSTRACT

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Section: Phase Behavior In Membrane Separationmentioning

confidence: 99%

Section: Distillationmentioning

confidence: 99%

A comprehensive review on biodiesel purification and upgrading

2017

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“…Bioethanol is considered a promising alternative for fossil fuels, as it is inexpensive, biodegradable, environmentally-friendly, and its application could partially decrease GHGs generated in combustion processes (Bateni et al, 2014;Karimi and Chisti, 2015;Aghbashlo et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Simultaneous biosorption and bioethanol production from lead-contaminated media by Mucor indicus

2017

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“…Ethanol and biogas are industrially produced from the same kinds of easily degradable biomass resources [80], so that the question of producing either bioethanol or biogas from a given substrate has been already debated. Although the use of sugar-/starch-rich energy crops has been reported to be energetically effective to produce methane rather than ethanol, Moshi et al [81] concluded that each of these products may be more appropriate than the other depending on both the area of application and existing infrastructure.…”

Section: The Combination Of Bioethanol and Biogas Production Processesmentioning

confidence: 99%

Combined Biogas and Bioethanol Production: Opportunities and Challenges for Industrial Application

Cesaro

Belgıorno

2015

Energies

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Abstract:In the last decades the increasing energy requirements along with the need to face the consequences of climate change have driven the search for renewable energy sources, in order to replace as much as possible the use of fossil fuels. In this context biomass has generated great interest as it can be converted into energy via several routes, including fermentation and anaerobic digestion. The former is the most common option to produce ethanol, which has been recognized as one of the leading candidates to substitute a large fraction of the liquid fuels produced from oil. As the economic competitiveness of bioethanol fermentation processes has to be enhanced in order to promote its wider implementation, the most recent trends are directed towards the use of fermentation by-products within anaerobic digestion. The integration of both fermentation and anaerobic digestion, in a biorefinery concept, would allow the production of ethanol along with that of biogas, which can be used to produce heat and electricity, thus improving the overall energy balance. This work aims at reviewing the main studies on the combination of both bioethanol and biogas production processes, in order to highlight the strength and weakness of the integrated treatment for industrial application.

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Castor plant for biodiesel, biogas, and ethanol production with a biorefinery processing perspective

Cited by 129 publications

References 48 publications

A comprehensive review on biodiesel purification and upgrading

A comprehensive review on biodiesel purification and upgrading

Simultaneous biosorption and bioethanol production from lead-contaminated media by Mucor indicus

Combined Biogas and Bioethanol Production: Opportunities and Challenges for Industrial Application

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