Special Issue "Optimization of Biodiesel, Methanol and Methane Production and Air Quality Improvement"

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "Energy and Environment".

Deadline for manuscript submissions: closed (31 July 2019).

Special Issue Editor

Guest Editor
Prof. João Fernando Pereira Gomes Website E-Mail
Department of Chemical Engineering (ADEQ), Instituto Superior de Engenharia de Lisboa (ISEL), Lisbon, Portugal
Phone: + 351.21.8317000
Interests: chemical technology; air pollution; energy; syngas and biodiesel production

Special Issue Information

Dear colleagues,

Alternative and renewable energy sources play a very decisive role in the development of human society. They contribute to fulfilling the increasing energy demands from both industrialized and under development countries, as well as economic needs, which must comply with a decarbonized economy and decrease the energy impact on the global environment. Among these alternative energy sources, fuels such as biodiesel, methanol and methane are good examples of how the previous design could be achieved, as these fuels can be obtained from renewable sources, used in applications such as transportation systems, electricity generation, fuel conversion, and even electricity storage, with a reduced impact on air emissions.

Although a great deal of research has been done and there have important advances in recent years, there is a need to increase the research. In particular, there is a need for the further development of new approaches, and their optimization and practical compatibilization with existing systems, so that they are cost competitive and truly effective and will be adopted by energy stakeholders.

For this Special Issue, we invite papers on new and innovative technical developments or approaches, reviews, case studies, as well as assessments, and papers from different disciplines, which are relevant to the optimization of biodiesel and methane/methanol production systems, simultaneously resulting in air quality improvement.

Prof. Dr. João Fernando Pereira Gomes
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Energies is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1800 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • biodiesel
  • methane
  • methanol
  • optimization
  • renewable energy

Published Papers (2 papers)

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Research

Open AccessArticle
Microalgae Cultivation in Pilot Scale for Biomass Production Using Exhaust Gas from Thermal Power Plants
Energies 2019, 12(18), 3497; https://doi.org/10.3390/en12183497 - 11 Sep 2019
Abstract
Exhaust gases from thermal power plants have the highest amount of carbon dioxide (CO2), presenting an environmental problem related to a severe impact on ecosystems. Extensively, the reduction of CO2 from thermal power plants has been considered with the aid [...] Read more.
Exhaust gases from thermal power plants have the highest amount of carbon dioxide (CO2), presenting an environmental problem related to a severe impact on ecosystems. Extensively, the reduction of CO2 from thermal power plants has been considered with the aid of microalgae as a cost-effective, sustainable solution, and efficient biological means for recycling of CO2. Microalgae can efficiently uptake CO2 and nutrients resulting in high generation of biomass and which can be processed into different valuable products. In this study, we have taken Nephroselmis sp. KGE8, Acutodesmus obliquus KGE 17 and Acutodesmus obliquus KGE32 microalgae, which are isolated from acid mine drainage and cultivated in a photobiological incubator on a batch scale, and also confirmed that continuous culture was possible on pilot scale for biofuel production. We also evaluated the continuous culture productivity of each cultivate-harvest cycle in the pilot scale. The biomass of the cultivated microalgae was also evaluated for its availability. Full article
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Open AccessArticle
The Effect of Mixed Wastewaters on the Biomass Production and Biochemical Content of Microalgae
Energies 2019, 12(18), 3431; https://doi.org/10.3390/en12183431 - 05 Sep 2019
Abstract
The effect of ammonia and iron concentration in Bold Basal Medium and mixed wastewater (including pretreated piggery wastewater and acid mine drainage) on biomass production and biochemical content (lipid and ß-carotene) of microalgae (Uronema sp. KGE 3) was investigated. Addition of iron [...] Read more.
The effect of ammonia and iron concentration in Bold Basal Medium and mixed wastewater (including pretreated piggery wastewater and acid mine drainage) on biomass production and biochemical content (lipid and ß-carotene) of microalgae (Uronema sp. KGE 3) was investigated. Addition of iron to the Bold Basal Medium enhanced the growth, lipid, and ß-carotene of Uronema sp. KGE 3. The highest dry cell weight, lipid content, and lipid productivity of KGE 3 were 0.551 g L−1, 46% and 0.249 g L−1 d−1, respectively, at 15 mg L−1 of Fe. The highest ß-carotene was obtained at 30 mg L−1 of Fe. The biomass production of KGE 3 was ranged between 0.18 to 0.37 g L−1. The microalgal growth was significantly improved by addition of acid mine drainage to pretreated piggery wastewater by membrane. The highest dry cell weight of 0.51 g L−1 was obtained at 1:9 of pretreated piggery wastewater by membrane and acid mine drainage for KGE 3. The removal efficiencies of total nitrogen and total phosphate was ranged from 20 to 100%. The highest lipid and ß-carotene content was found to be 1:9. Application of this system to wastewater treatment plant could provide cost effective technology for the microalgae-based industries and biofuel production field, and also provide the recycling way for pretreated piggery wastewater and acid mine drainage. Full article
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