Special Issue "Environmental Catalysis Processes Based on Biomass"

A special issue of Processes (ISSN 2227-9717). This special issue belongs to the section "Other Topics".

Deadline for manuscript submissions: 31 January 2020.

Special Issue Editors

Guest Editor
Dr. Juan Antonio Cecilia Website E-Mail
Departamento de Química Inorgánica, Cristalografía y Mineralogía, Spain
Interests: heterogeneous catalysis; biomass valorization; heterogeneous catalysis; porous materials; clay minerals; adsorption processes
Guest Editor
Prof. Dr. Francisco Murilo Tavares de Luna Website E-Mail
Chemical Engineering Department, Universidade Federal do Ceará, Brasil
Interests: biomass valorization; biodiesel; biolubricants; homogeneous catalysis; esterification; epoxidation; modeling and simulation of process

Special Issue Information

Dear Colleagues,

In the last decade, the decline of traditional fossil fuels has led to the search and development of alternative energy sources, which must be sustainable and respectful to the environment. Among them, biomass is the only carbon-based energy source, so it is the only source with the potential to obtain energy and the most noteworthy to synthesize valuable products, which are currently formed from fossil fuels. The transformation of biomass into value-added products takes place through thermophysical and thermochemical processes using heterogeneous catalysts.

Taking into account the need to obtain valuable organic products from biomass, the focus of this Special Issue is the use of catalysts to valorize biomass. The choice of the biomass source is a key factor to obtain a sustainable process, since lignocellulosic biomass should not interfere with the food chain. In this sense, lignocellulose has emerged as a sustainable source due to its abundance and low cost to obtain fuels and chemicals. More recently, the organic waste related to the harvest, manufacture, and disposal of food has also emerged as a sustainable biomass source to obtain high value-added products.

Based on this, we would like to invite authors to publish papers and short reviews related to the use of heterogeneous catalysts in different reactions in order to obtain a platform of fuel products from the valorization of biomass.

Dr. Juan A. Cecilia
Prof. Dr. Francisco Murilo Tavares de Luna
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. Processes is an international peer-reviewed open access monthly 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 1200 CHF (Swiss Francs). Please note that for papers submitted after 31 December 2019 an APC of 1400 CHF applies. 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

  • biomass
  • biorefinery
  • homogeneous catalyst
  • heterogeneous catalysis
  • valorization
  • biolubricants
  • valuable products

Published Papers (2 papers)

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Research

Open AccessFeature PaperArticle
Lanthanum Effect on Ni/Al2O3 as a Catalyst Applied in Steam Reforming of Glycerol for Hydrogen Production
Processes 2019, 7(7), 449; https://doi.org/10.3390/pr7070449 - 15 Jul 2019
Abstract
Nowadays, the massive production of biodiesel leads to a surplus of glycerol. Thus, new applications of this by-product are being developed. In this study, glycerol steam reforming was carried out with Ni catalysts supported on Al2O3 rings and La-modified Al [...] Read more.
Nowadays, the massive production of biodiesel leads to a surplus of glycerol. Thus, new applications of this by-product are being developed. In this study, glycerol steam reforming was carried out with Ni catalysts supported on Al2O3 rings and La-modified Al2O3. The catalysts were characterized by N2 physical adsorption, X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy, and thermogravimetry. Both catalysts were effective in glycerol steam reforming. However, Ni/Al2O3 activity decreased over reaction time. Ni/La2O3/Al2O3 showed the best stability during the reaction. In addition, the activity of the modified support, La2O3/Al2O3, was evaluated. The modification of the support lent catalytic properties to the solid. Some conditions such as catalyst arrangement (catalyst in the first or second reactor), space velocity, and reaction temperature were studied. The highest hydrogen production was obtained when half the amount of the catalyst was located in both reactors. Glycerol conversion into gases was similar, regardless the space velocity, although higher amounts of H2 were obtained when this variable decreased. Complete glycerol conversion into gases was obtained at 900 and 1000 °C, and hydrogen production reached a H2/glycerol molar ratio of 5.6. Finally, the presence of the catalyst and the optimization of these conditions increased the energy capacity of the produced stream. Full article
(This article belongs to the Special Issue Environmental Catalysis Processes Based on Biomass)
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Open AccessCommunication
Biological Pretreatment of Oil Palm Empty Fruit Bunch by Schizophyllum commune ENN1 without Washing and Nutrient Addition
Processes 2019, 7(7), 402; https://doi.org/10.3390/pr7070402 - 01 Jul 2019
Abstract
Washing and drying are common steps for oil palm empty fruit bunch (OPEFB) preparation prior to pretreatment. However, the mass balance of OPEFB preparation proved a major loss of OPEFB during the washing and drying steps. An indigenous fungus, Schizophyllum commune ENN1 was [...] Read more.
Washing and drying are common steps for oil palm empty fruit bunch (OPEFB) preparation prior to pretreatment. However, the mass balance of OPEFB preparation proved a major loss of OPEFB during the washing and drying steps. An indigenous fungus, Schizophyllum commune ENN1 was used for delignification of unwashed OPEFB in biological pretreatment without nutrient addition. S. commune ENN1 achieved a maximum lignin removal of 53.8% after 14 days of biological pretreatment of unwashed OPEFB. S. commune ENN1 was able to grow on unwashed OPEFB during biological pretreatment at 55% of moisture content and 5% of oil residue. The highest amount of reducing sugars obtained from OPEFB pretreated by S. commune ENN1 was 230.4 ± 0.19 mg/g with 54% of hydrolysis yield at 96 h. In comparison, the sugar yield of OPEFB pretreated by Phanerochaete chrysosporium was 101.2 ± 0.04 mg/g. This study showed that S. commune ENN1 was feasible to remove lignin of OPEFB through biological pretreatment for enzymatic saccharification without washing and addition of nutrients. Full article
(This article belongs to the Special Issue Environmental Catalysis Processes Based on Biomass)
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