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Special Issue "Catalytic Fast Pyrolysis"
A special issue of Catalysts (ISSN 2073-4344).
Deadline for manuscript submissions: 31 December 2019.
Prof. Young-Kwon Park Website E-Mail
School of Environmental Engineering, University of Seoul, Seoul 02504, Korea
Interests: Heterogeneous catalysis for biomass and plastic conversion, Catalysis pyrolysis, Hydrodeoxygenation, Supercritical liquefaction, VOC removal, DeNOx, Removal of particulate matter
Prof. Young-Min Kim E-Mail
Department of Environmental Sciences and Biotechnology, Hallym University, Chuncheon 24252, Korea
Interests: thermal and catalytic pyrolysis of biomass and waste plastics, analytical pyrolysis of polymeric materials
Owing to the increasing attention paid to organic polymers as a renewable energy source—including biomass, plastic wastes, and other municipal solid wastes (MSW)—research into the pyrolysis of these polymeric materials into liquid fuels or high-value chemicals has been rapidly expanding in the last decade. The primary pyrolysis vapors produced by the thermal decomposition of waste polymers, especially biomass, are the mixture of highly functionalized monomeric and oligomeric compounds such as aldehydes, acids, anhydrosugars, phenols, etc., which are unsuitable for use as fuels or chemicals. To date, a range of different catalytic materials, including zeolites, metal catalysts, and mixed metal oxides, have been applied to the pyrolysis process to shift the product distribution to value-added chemicals, such as aromatic hydrocarbons, olefins, paraffins, naphthenes and ketones. However, many of them suffer from several disadvantages, such as fast deactivation, low selectivity, high process costs, and so on. More research should be added to the catalytic pyrolysis of renewable polymer materials to increase the yield and selectivity to the targeted chemicals and extend the catalyst lifetime. In this regard, this Special Issue is dedicated to topics such as the catalytic pyrolysis of waste organic polymers and the catalytic upgrading of the pyrolysis oils derived from these polymers (e.g., hydrotreating). The study of new catalysts, new upgrading chemistry, co-processing with conventional feedstock, catalyst deactivation/regeneration, and so on, which can be implemented to the pyrolysis process, will be the primary topics for this Special Issue.
It is our pleasure to invite you to submit a manuscript to this Special Issue. Reviews, short communications, full research papers related to the catalytic pyrolysis of biomass or the catalytic upgrading of biomass pyrolysis oils are especially welcome.
Prof. Young-Kwon Park
Prof. Jungho Jae
Prof. Young-Min Kim
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. Catalysts 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 1600 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.
- Catalytic fast pyrolysis
- Pyrolysis oil
The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.
Title: Hydrotreating of Jatropha-derived Bio-oil over Mesoporous Sulfide Catalysts to Produce Drop-in Transportation Fuels
Authors: Shih-Yuan Chen,a,* Takehisa Mochizuki,a Masayasu Nishi,a Hideyuki Takagi,a Albert Chang,b Chia-Min Yang,b,c Yuji Yoshimura,d Sugimoto Yoshikazu,a Makoto Tobaa
Affiliations: a Research Institute of Energy Frontier (RIEF), Department of Energy and Environment, National Institute of Advanced Industrial Science and Technology (AIST), 16-1 Onogawa, Tsukuba, Ibaraki 305-8569, Japan.
b Department of Chemistry, National Tsing Hua University, Hsinchu 30013, Taiwan
c Frontier Research Center on Fundamental and Applied Sciences of Matters, National Tsing Hua University, Hsinchu 30013, Taiwan.
d Materials for Energy Research Unit, National Metal and Materials Technology Center (MTEC), Pahonyothin Rd. Klong 1, Klong Luang Pathumtani 12120, Thailand.
Abstract: This study reported several strategies for catalytic hydrotreating of 100 wt.% Jatropha-derived bio-oil using mesoporous sulfide catalysts of CoMo/γ-Al2O3 and NiMo/γ-Al2O3 to produce drop-in transportation fuels including gasoline- and diesel-like fuels, which are very different from our recent work on co-processing of 10 wt.% Jatropha bio-oil with petroleum distillates to produce a hydrotreated oil as a diesel-like fuel (Chen et al., Catalysts 2018, 8, 59; http://dx.doi.org/10.3390/catal8020059). The Jatrophaderived bio-oil was largely produced by thermal pyrolysis of Jatropha biomass wastes using a Pilot Plant with a capacity of 20 kg h-1 at TISTR, Thailand, and it was an unconventional type of bio-oil which contained around 20-30 wt.% of phenol and its derivatives (denoted as the light part A) and around 70-80 wt.% of fatty acid amides and their derivatives (denoted as the heavy part B). Because Jatropha-derived bio-oil contained large amounts of heteroatoms (oxygen ~ 20-40 wt.%, nitrogen ~ 4 wt.%, sulfur ~ 1000 ppm.), nitrogen especially, it was pre-treated through a slurry-type high pressure reactor under severe condition, resulting in a pre-treated Jatropha-derived bio-oil with relatively low amounts of heteroatoms (oxygen < 20 wt.%, nitrogen < 2 wt.%, sulfur < 500 ppm.). The light part of pre-hydrotreated Jatropha-derived bio oil (corresponded to light part A) was then extracted through the process of distillation at temperature below 240 oC, followed by hydrotreating again with mesoporous sulfide CoMo/γ-Al2O3 catalysts using a batch-type high pressure reactor under severe conditions (ca. 350 oC and 7 MPa of H2 gas for 5 h). The hydrotreated oil A was a gasoline-like fuel, which contained 29.5 vol.% of n-paraffins, 14.4 vol.% of iso-paraffins, 4.5 vol.% of olefins, 21.4 vol. % of naphthene compounds and 29.6 wt.% of aromatic compounds, and little amounts of heteroatoms (nearly no oxygen and sulfur, and 40 ppm of nitrogen), corresponding to an octane number of 44. Consequently, the hydrotreated oil A would be suitable for blending with petro-gasoline. The heavy part of pre-hydrotreated Jatropha-derived bio oil (corresponded to heavy part B) was the residues of the process of distillation (> 240 oC) as aforementioned. With hydrotreating with mesoporous sulfide NiMo/γ-Al2O3 catalysts using a batch-type high pressure reactor under the same reaction condition, the hydrotreated oil B with a diesel-like composition, low amounts of heteroatoms, and a cetane number of 60 was obtained, which would be suitable for use in drop-in diesel fuel.
Keywords: Hydrotreating, mesoporous silfide materials, Jatropha biomass,
transportation fuels, upgrading technology