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Green Hydrogen for Industries and Biorefineries
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Green Hydrogen for Industries and Biorefineries

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "A5: Hydrogen Energy".

Deadline for manuscript submissions: closed (30 April 2024) | Viewed by 3431

Special Issue Editor

Dr. Aristide Giuliano

E-Mail Website
Guest Editor
ENEA–Italian Agency for New Technologies, Energy and Sustainable Economic Development, Department of Energetic Technologies, Trisaia Research Centre, I-75026 Rotondella, Italy
Interests: process optimization; process simulation; mathematical modeling; environmental assessment; biomass valorization; air quality
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Green hydrogen production is an opportunity to store green energy. Avoiding the need to transport hydrogen for long distances is necessary to maintain a low cost. A cost-effective option for power storage in RES overload hours can be the production of hydrogen through electrolysis and the use of hydrogen in neighboring locations. Green hydrogen can be a reactant in several industries and bioconversion systems, e.g., hydrodeoxygenation of oils or hydrogen enrichment of syngas. Furthermore, green hydrogen can be the reducing agent converting CO2 to chemicals. A large amount of CO2 produced by industrial activities can be converted into high added-value chemicals (e.g., methanol, dimethyl ether). Some integration layouts could be selected and evaluated under techno-economical–environmental aspects. Further, several alternatives to conventional water electrolysis to hydrogen will be studied and integrated into flowsheets (e.g., electrolysis of wastewater). The goal consists in providing technoeconomic assessment of the integration of biorefinery systems with renewable electricity systems.

Papers addressing these topics are invited to this Special Issue, especially those combining a high academic standard coupled with a practical focus on process integration between green hydrogen production and its utilization together with secondary streams and bioresources.

Dr. Aristide Giuliano
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. Energies 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 2600 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

  • green hydrogen
  • biorefineries
  • process integration
  • techno-economic assessment
  • CO2 utilization
  • bio-based product
  • low-carbon strategies

Published Papers (2 papers)

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Research

13 pages, 1970 KiB  
Article
Effects of Different Hydrolysis Methods on the Hydrolysate Characteristics and Photo-Fermentative Hydrogen Production Performance of Corn and Sorghum Straw
by Qing Li, Youmin Jiang, Changpeng Ren, Qiushi Jiang, Jiali Feng, Minmin Wang, Zixuan Gao and Wen Cao
Energies 2023, 16(1), 301; https://doi.org/10.3390/en16010301 - 27 Dec 2022
Cited by 1 | Viewed by 1347
Abstract
The effects of hydrolysis methods (hydrothermal, acid, alkali, hydrothermal-enzyme, acid-enzyme, and alkali-enzyme) on hydrolysate characteristics and photo fermentative hydrogen production (PFHP) of corn straw (CS) and sorghum straw (SS) were investigated. The optimum production of reducing the sugar of straw in different solvent [...] Read more.
The effects of hydrolysis methods (hydrothermal, acid, alkali, hydrothermal-enzyme, acid-enzyme, and alkali-enzyme) on hydrolysate characteristics and photo fermentative hydrogen production (PFHP) of corn straw (CS) and sorghum straw (SS) were investigated. The optimum production of reducing the sugar of straw in different solvent environments was studied by one-step hydrolysis and co-enzymatic hydrolysis pretreatment through a 3,5-dinitrosalicylic acid method. The hydrogen production process by photolytic fermentation of hydrolysates of Rhodobacter sphaeroides HY01 was further analyzed through a gas chromatograph, including the differences in accumulated PFHP yield, chemical oxygen consumption (COD), and volatile fatty acid (VFA) composition. The results showed that the highest reducing sugar yield was obtained by the acid method among one-step hydrolysis. In contrast, acid-enzyme hydrolysis can further increase the reducing sugar yield, which reached 0.42 g·g−1-straw of both straws. Both CS and SS had the highest hydrogen yield from acid-enzyme hydrolysate, 122.72 ± 3.34 mL·g−1-total solid of straw (TS) and 170.04 ± 4.12 mL·g−1-TS, respectively, compared with their acid hydrolysates with 40.46% and 10.53% higher hydrogen yields, respectively. The use of enzymatic hydrolysis showed a significantly higher hydrogen yield for CS compared to SS, indicating that acid hydrolysis was more suitable for SS and acid-enzyme hydrolysis was more suitable for CS. Full article
(This article belongs to the Special Issue Green Hydrogen for Industries and Biorefineries)
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16 pages, 5788 KiB  
Article
Steam Gasification of Refuse-Derived Fuel with CaO Modification for Hydrogen-Rich Syngas Production
by Ranwei Ren, Haiming Wang and Changfu You
Energies 2022, 15(21), 8279; https://doi.org/10.3390/en15218279 - 05 Nov 2022
Cited by 5 | Viewed by 1515
Abstract
Steam gasification of refuse-derived fuel (RDF) for hydrogen-rich syngas production was investigated in a lab-scale gasification system with CaO modification. A simulation model based on Aspen Plus was built to study the characteristics and the performance of the RDF gasification system. The influences [...] Read more.
Steam gasification of refuse-derived fuel (RDF) for hydrogen-rich syngas production was investigated in a lab-scale gasification system with CaO modification. A simulation model based on Aspen Plus was built to study the characteristics and the performance of the RDF gasification system. The influences of gasification temperature, steam to RDF ratio (S/R), and CaO adsorption temperature on the gas composition, heating value, and gas yield were evaluated. Under the gasification temperature of 960 °C and S/R of 1, H2 frication in the syngas increased from 47 to 67% after CaO modification at 650 °C. Higher syngas and H2 yield were obtained by increasing both S/R and gasification temperature. However, as the CaO adsorption temperature increased, a lower H2 fraction was obtained due to the limitation of the CaO adsorption capacity at high temperatures. The highest H2 fraction (69%), gas yield (1.372 m3/kg-RDF), and H2 yield (0.935 m3/kg-RDF) were achieved at gasification temperature of 960 °C, S/R of 2, and CaO modification temperature of 650 °C. The variation trends of simulation results can match well with the experiment. The deviation was mainly because of the limitation of contact time between the gasification agent and RDF, uneven temperature distribution of the reactors, and the formation of tar during the experiment. Full article
(This article belongs to the Special Issue Green Hydrogen for Industries and Biorefineries)
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