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Special Issue "Advances in Conversion of Biomass and Waste to Chemicals and Fuels"

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Materials Chemistry".

Deadline for manuscript submissions: 31 December 2019

Special Issue Editors

Guest Editor
Prof. Rafael Luque

Department of Organic Chemistry, Universidad de Cordoba, Cordoba, Spain
Website | E-Mail
Phone: 0034957211050
Interests: green chemistry; biomass valorization; heterogeneous catalysis; nanomaterial design
Guest Editor
Prof. Luís Adriano Santos Do Nascimento

Institute of Biological Sciences, Federal University of Pará, Belém, Brazil
Website | E-Mail
Interests: biomass/waste valorisation; oil chemistry; heterogeneous catalysts; biofuels

Special Issue Information

Dear Colleagues,

Residual biomass and wastes are ideal and sustainable substitutes for products derived from petroleum. The development of processes for decreasing the use of non-renewable products is recent, but significant. Several new technologies are focusing processes for the production of biofuels and chemicals from different types of residual biomass or wastes. However, research on these themes is advancing extremely fast; therefore, a compilation of the latest advances in the field would be useful to connect interested authors and readers. This Special Issue aims to cover recent and emerging strategies for the development of sustainable biomass/waste conversion processes, focusing on the aspects that drive present and future research, from chemical catalysis to biocatalysis and bioprocessing. For authors, this issue will be a good opportunity to publish their original research after peer review by expert researchers of biomass/waste valorisation. Review articles by experts in such fields of research are also strongly encouraged to be submitted for publication in this Special Issue.

Prof. Rafael Luque
Prof. Luís Adriano Santos do Nascimento
Guest Editors

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. Molecules 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

  • waste valorisation
  • biomass
  • lignocellulosic
  • lipidic
  • biofuels
  • biorefinery

Published Papers (2 papers)

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Research

Open AccessArticle
Development and Optimization of the Biological Conversion of Ethane to Ethanol Using Whole-Cell Methanotrophs Possessing Methane Monooxygenase
Molecules 2019, 24(3), 591; https://doi.org/10.3390/molecules24030591
Received: 24 January 2019 / Revised: 4 February 2019 / Accepted: 5 February 2019 / Published: 7 February 2019
Cited by 1 | PDF Full-text (1711 KB) | HTML Full-text | XML Full-text
Abstract
The biological production of ethanol from ethane for the utilization of ethane in natural gas was investigated under ambient conditions using whole-cell methanotrophs possessing methane monooxygenase. Several independent variables including ethane concentration and biocatalyst amounts, among other factors, were optimized for the enhancement [...] Read more.
The biological production of ethanol from ethane for the utilization of ethane in natural gas was investigated under ambient conditions using whole-cell methanotrophs possessing methane monooxygenase. Several independent variables including ethane concentration and biocatalyst amounts, among other factors, were optimized for the enhancement of ethane-to-ethanol bioconversion. We obtained 0.4 g/L/h of volumetric productivity and 0.52 g/L of maximum titer in optimum batch reaction conditions. In this study, we demonstrate that the biological gas-to-liquid conversion of ethane to ethanol has potent technical feasibility as a new application of ethane gas. Full article
(This article belongs to the Special Issue Advances in Conversion of Biomass and Waste to Chemicals and Fuels)
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Open AccessArticle
High-Quality Biodiesel Production from Buriti (Mauritia flexuosa) Oil Soapstock
Received: 11 November 2018 / Revised: 2 December 2018 / Accepted: 8 December 2018 / Published: 28 December 2018
Cited by 1 | PDF Full-text (742 KB) | HTML Full-text | XML Full-text
Abstract
The buriti palm (Mauritia flexuosa) is a palm tree widely distributed throughout tropical South America. The oil extracted from the fruits of this palm tree is rich in natural antioxidants. The by-products obtained from the buriti palm have social and economic [...] Read more.
The buriti palm (Mauritia flexuosa) is a palm tree widely distributed throughout tropical South America. The oil extracted from the fruits of this palm tree is rich in natural antioxidants. The by-products obtained from the buriti palm have social and economic importance as well, hence the interest in adding value to the residue left from refining this oil to obtain biofuel. The process of methyl esters production from the buriti oil soapstock was optimized considering acidulation and esterification. The effect of the molar ratio of sulfuric acid (H2SO4) to soapstock in the range from 0.6 to 1.0 and the reaction time (30–90 min) were analyzed. The best conditions for acidulation were molar ratio 0.8 and reaction time of 60 min. Next, the esterification of the fatty acids obtained was performed using methanol and H2SO4 as catalyst. The effects of the molar ratio (9:1–27:1), percentage of catalyst (2–6%) and reaction time (1–14 h) were investigated. The best reaction conditions were: 18:1 molar ratio, 4% catalyst and 14 h reaction time, which resulted in a yield of 92% and a conversion of 99.9%. All the key biodiesel physicochemical characterizations were within the parameters established by the Brazilian standard. The biodiesel obtained presented high ester content (96.6%) and oxidative stability (16.1 h). Full article
(This article belongs to the Special Issue Advances in Conversion of Biomass and Waste to Chemicals and Fuels)
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