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4.1
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Clean Technol.
Special Issues
Gasification and Pyrolysis of Biomass and Waste
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Gasification and Pyrolysis of Biomass and Waste

A special issue of Clean Technologies (ISSN 2571-8797).

Deadline for manuscript submissions: closed (30 September 2024) | Viewed by 7419

Special Issue Editor

Dr. Jihong Moon

E-Mail Website
Guest Editor
Clean Fuel Research Laboratory, Korea Institute of Energy Research, Daejeon 34129, Republic of Korea
Interests: oxy-CFBC; gasification; pyrolysis; molten metal; fluidized beds processes; carbon, NOx, and SOx in situ capturing processes; thermal power generation; flexibility
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This Special Issue aims to collect scientific articles that offer new solutions to carbon neutrality, focusing on biomass and waste thermochemical conversion technologies. At the same time as waste treatment, it is of great interest to solve greenhouse gas and environmental pollution problems through energy production and high-value-added energy production technologies using biomass. Thermochemical conversion includes traditional pyrolysis, gasification technologies, and modern reforming technologies. Priority is given to articles with multidisciplinary topics that connect with the environment and the economy.

Dr. Jihong Moon
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 submissions that pass pre-check are 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. Clean Technologies is an international peer-reviewed open access quarterly 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.

Keywords

  • gasification
  • pyrolysis
  • thermo-chemical conversion
  • biomass
  • waste
 

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Published Papers (3 papers)

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Research

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26 pages, 7119 KiB  
Article
High-Temperature Steam- and CO2-Assisted Gasification of Oil Sludge and Petcoke
by Sergey M. Frolov, Viktor A. Smetanyuk, Ilyas A. Sadykov, Anton S. Silantiev, Fedor S. Frolov, Vera Ya. Popkova, Jaroslav K. Hasiak, Anastasiya G. Buyanovskaya, Rina U. Takazova, Tatiana V. Dudareva, Valentin G. Bekeshev, Alexey B. Vorobyov, Alexey V. Inozemtsev and Jaroslav O. Inozemtsev
Clean Technol. 2025, 7(1), 17; https://doi.org/10.3390/cleantechnol7010017 - 14 Feb 2025
Viewed by 1084
Abstract
A new high-temperature allothermal gasification technology is used to process three types of oil waste: ground oil sludge (GOS), tank oil sludge (TOS), and petcoke. The gasifying agent (GA), mainly composed of H2O and CO2 at a temperature above 2300 [...] Read more.
A new high-temperature allothermal gasification technology is used to process three types of oil waste: ground oil sludge (GOS), tank oil sludge (TOS), and petcoke. The gasifying agent (GA), mainly composed of H2O and CO2 at a temperature above 2300 K and atmospheric pressure, is produced by pulsed detonations of a near-stochiometric methane-oxygen mixture. The gasification experiments show that the dry off-gas contains 80–90 vol.% combustible gas composed of 40–45 vol.% CO, 28–33 vol.% H2, 5–10 vol.% CH4, and 4–7 vol.% noncondensable C2–C3 hydrocarbons. The gasification process is accompanied by the removal of mass from a flow gasifier in the form of fine solid ash particles with a size of about 1 μm. The ash particles have a mesoporous structure with a specific surface area ranging from 3.3 to 15.2 m2/g and pore sizes ranging from 3 to 50 nm. The measured wall temperatures of the gasifier are in reasonable agreement with the calculated value of the thermodynamic equilibrium temperature of the off-gas. The measured CO content in the off-gas is in good agreement with the thermodynamic calculations. The reduced H2 content and elevated contents of CH4, CO2, and CxHy are apparently associated with the nonuniform distribution of the waste/GA mass ratio in the gasifier. To increase the H2 yield, it is necessary to improve the mixing of waste with the GA. It is proposed to mix crushed petcoke with oil sludge to form a paste and feed the combined waste into the gasifier using a specially designed feeder. Full article
(This article belongs to the Special Issue Gasification and Pyrolysis of Biomass and Waste)
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18 pages, 4333 KiB  
Article
Biogas and Organic Manure Production from Anerobic Digestion of Rubber Plant Effluent, Gliricidia Leaves, and Inoculum: Energy Sustainability and Socio-Economic Development of Mauritania
by Sidahmed Sidi Habib, Shuichi Torii, Kavitha Mol S. and Aravind Jayarajan
Clean Technol. 2025, 7(1), 4; https://doi.org/10.3390/cleantechnol7010004 - 6 Jan 2025
Viewed by 950
Abstract
This study analyzed the anaerobic co-digestion of inoculum (I), rubber plant effluent (RPE) and Gliricidia leaves slurry (GLS) at different mixing ratios for the simultaneous production of methane and organic fertilizer. The results were analyzed for volatile fatty acids, pH, C/N ratio, and [...] Read more.
This study analyzed the anaerobic co-digestion of inoculum (I), rubber plant effluent (RPE) and Gliricidia leaves slurry (GLS) at different mixing ratios for the simultaneous production of methane and organic fertilizer. The results were analyzed for volatile fatty acids, pH, C/N ratio, and methane production. The organic quality of the substrate mixture before and after anaerobic digestion was analyzed for total organic carbon, total nitrogen, potassium, and phosphorus contents. This study concluded that the inoculum, rubber plant effluent (RPE), and Gliricidia leaves slurry (GLS) mixed at the ratio of 10:2:2 showed higher methane production than other experiments conducted at different mixing ratios. The nitrogen, potassium, and phosphorus contents of the substrates were increased after anaerobic digestion. However, the organic carbon content in the substrate decreased in all experiments. This research recommends the planting of rubber trees and Gliricidia maculata to promote energy sustainability and the socio-economic development of Mauritania. Full article
(This article belongs to the Special Issue Gasification and Pyrolysis of Biomass and Waste)
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Review

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24 pages, 3024 KiB  
Review
Review of the Current State of Pyrolysis and Biochar Utilization in Europe: A Scientific Perspective
by Maria P. C. Volpi, Jean C. G. Silva, Andreas Hornung and Miloud Ouadi
Clean Technol. 2024, 6(1), 152-175; https://doi.org/10.3390/cleantechnol6010010 - 4 Feb 2024
Cited by 11 | Viewed by 4672
Abstract
This scientific paper provides an overview of the current state of pyrolysis in Europe, with a focus on mapping the key research areas and technologies employed. This research relied on search equations that centered on the utilization of biomass and plastics as primary [...] Read more.
This scientific paper provides an overview of the current state of pyrolysis in Europe, with a focus on mapping the key research areas and technologies employed. This research relied on search equations that centered on the utilization of biomass and plastics as primary feedstocks in pyrolysis, with a particular emphasis on biochar generation and different technologies applied. The results showed that both plastic and biomass pyrolysis can contribute to reducing waste and mitigating greenhouse gas emissions. However, plastic pyrolysis can release harmful pollutants due to the presence of chlorine and other additives in plastics, which requires sophisticated emission control systems to be implemented. The production of biochar from sewage sludge is identified as a promising approach for phosphorus recovery, which can subsequently be utilized as a valuable fertilizer in agricultural applications. The data from this study contribute to exploring future applications at pilot and industrial scales for pyrolysis, with a critical assessment of the use of feedstocks. Moreover, this work provides information about current companies that are already operating on a large scale with pyrolysis and a map of the principal countries in Europe engaged in pyrolysis research, correlating the characteristics of the pyrolysis processes investigated. Full article
(This article belongs to the Special Issue Gasification and Pyrolysis of Biomass and Waste)
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