Special Issue "Catalysis in Lignocellulosic Biomass Conversion"

A special issue of Catalysts (ISSN 2073-4344). This special issue belongs to the section "Biomass Catalysis".

Deadline for manuscript submissions: 31 March 2020.

Special Issue Editor

Guest Editor
Prof. Praveen Kolar Website E-Mail
The Department of Biological and Agricultural Engineering, Box 7625, North Carolina State University, Raleigh, NC 27695, USA
Interests: heterogeneous catalysis; valorization of wastes

Special Issue Information

Dear Colleagues,

Greetings, from the North Carolina State University. Lignocellulosic biomasses, owing to their abundance and unique chemical composition, are expected to become a major player in our energy portfolio. In this context, catalysis is the key to unlocking the enormous potential of converting lignocelluloses into a variety of fuels, chemicals, and materials in a sustainable way. Therefore, this Special Issue of Catalysts will focus on novel approaches in the following general areas:

  • Thermochemical catalysis of biomasses including pyrolysis, gasification, and hydrothermal carbonization;
  • New ideas related to solid-acid catalyzed pretreatment and hydrolysis of biomasses;
  • Low-temperature catalytic lignin-to-chemical processes;
  • Valorization of municipal, agricultural, aquacultural, and animal wastes;
  • Catalytic synthesis of new materials from biomasses.

I invite you to submit your original research and review articles to Catalysts. Short communications are also welcome if they are high-impact.  All manuscripts will be subjected to rigorous peer-review by eminent experts in the respective areas.

Prof. Praveen Kolar
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. 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.


  • catalysis,
  • lignocellulose
  • waste valorization
  • fuels
  • chemicals
  • energy
  • materials

Published Papers (1 paper)

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Open AccessArticle
Pyrolysis Kinetics of Hydrochars Produced from Brewer’s Spent Grains
Catalysts 2019, 9(7), 625; https://doi.org/10.3390/catal9070625 - 22 Jul 2019
Cited by 1
The current market situation shows that large quantities of the brewer’s spent grains (BSG)—the leftovers from the beer productions—are not fully utilized as cattle feed. The untapped BSG is a promising feedstock for cheap and environmentally friendly production of carbonaceous materials in thermochemical [...] Read more.
The current market situation shows that large quantities of the brewer’s spent grains (BSG)—the leftovers from the beer productions—are not fully utilized as cattle feed. The untapped BSG is a promising feedstock for cheap and environmentally friendly production of carbonaceous materials in thermochemical processes like hydrothermal carbonization (HTC) or pyrolysis. The use of a singular process results in the production of inappropriate material (HTC) or insufficient economic feasibility (pyrolysis), which hinders their application on a larger scale. The coupling of both processes can create synergies and allow the mentioned obstacles to be overcome. To investigate the possibility of coupling both processes, we analyzed the thermal degradation of raw BSG and BSG-derived hydrochars and assessed the solid material yield from the singular as well as the coupled processes. This publication reports the non-isothermal kinetic parameters of pyrolytic degradation of BSG and derived hydrochars produced in three different conditions (temperature-retention time). It also contains a summary of their pyrolytic char yield at four different temperatures. The obtained KAS (Kissinger–Akahira–Sunose) average activation energy was 285, 147, 170, and 188 kJ mol−1 for BSG, HTC-180-4, HTC-220-2, and HTC-220-4, respectively. The pyrochar yield for all hydrochar cases was significantly higher than for BSG, and it increased with the severity of the HTC’s conditions. The results reveal synergies resulting from coupling both processes, both in the yield and the reduction of the thermal load of the conversion process. According to these promising results, the coupling of both conversion processes can be beneficial. Nevertheless, drying and overall energy efficiency, as well as larger scale assessment, still need to be conducted to fully confirm the concept. Full article
(This article belongs to the Special Issue Catalysis in Lignocellulosic Biomass Conversion)
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Planned Papers

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.

Article: Temperature-responsive acid-releasing Catalysts for Cellulose Hydrolysis to HMF
Authors: Yong Wang, Yuan Zhang, Chunxiao Li, Ming Wang, Hongyou Cui,* Weiming Yi,* Feng Song, Xiuyu Sun, Qiang Fu
Abstract: A novel N doped carbon material heterogeneous catalyst has been devised to facilitate cellulose into HMF for achieving sustainable developing. Temperature-responsive acid-releasing catalysts provide a novel and green solid-liquid phase cellulose conversion reaction system. N-doped carbon materials has a certain alkaline, it can adsorb chemically HCl at room temperature and release when being heated to high temperature. The temperature-responsive acid-releasing behavior is demonstrated by acid-base titration and high temperature releasing experiments. SEM and TEM characterization as well as N2 adsorption desorption show that all of the catalysts possess mesopores. The basic sites of N-doped carbon materials are elucidated through the catalyst characterization of XPS, EDS and CO2-TPD. Meanwhile, Roman and H2-TPR also are used to characterize catalysts. At presented, the catalyst showed excellent performance for the conversion of cellulose to HMF in 1-butanol/H2O biphasic system and as high as 42.3% HMF yield were achieved at 200oC for 50 min with 70.8% total carbon yield.

Title: Pretreatment of switchgrass for production of glucose via sulfonic acid-doped activated carbon 
Authors: Yane Ansanay, Praveen Kolar, Ratna Sharma-Shivappa, Jay Cheng and Consuelo Arellano


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