Investigation of an integrated hydrogen production system based on nuclear and renewable energy sources: a new approach for sustainable hydrogen production via copper-chlorine thermochemical cycles

2011 ◽  
Vol 36 (15) ◽  
pp. 1388-1394 ◽  
Author(s):  
Mehmet F. Orhan ◽  
Ibrahim Dincer ◽  
Marc A. Rosen
Keyword(s):  
Renewable Energy ◽  
Hydrogen Production ◽  
Production System ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Thermochemical Cycles ◽  
New Approach

Thermochemical Cycles for Hydrogen Production

2014 ◽  
Vol 592-594 ◽  
pp. 1820-1824
Author(s):  
N. Narendra Babu ◽  
S. Jayaraj ◽  
M.V. Pavan Kumar ◽  
H.C. Kamath
Keyword(s):  
Renewable Energy ◽  
Energy Consumption ◽  
Hydrogen Production ◽  
Fossil Fuels ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Thermochemical Cycles ◽  
Production Of Hydrogen

Increasing energy consumption, high cost and exhaustible nature of fossil fuels and their impacts on environment have increased interest in production of hydrogen from thermochemical cycles by harvesting energy from renewable energy sources in the present scenario. By using thermochemical cycles the large quantity of hydrogen production is possible. The main thermochemical cycles out of all reference cycles are Cu-Cl, Zn-ZnO, S-I, Ca-Br and Fe-Cl.

scholarly journals Main Hydrogen Production Processes: An Overview

Catalysts ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 547
Author(s):  
Marco Martino ◽  
Concetta Ruocco ◽  
Eugenio Meloni ◽  
Pluton Pullumbi ◽  
Vincenzo Palma
Keyword(s):  
Renewable Energy ◽  
Water Vapor ◽  
Hydrogen Production ◽  
Renewable Energy Sources ◽  
Review Article ◽  
Energy Sources ◽  
Production Methods ◽  
Carbon Neutrality ◽  
Renewable Feedstocks ◽  
Production Processes

Due to its characteristics, hydrogen is considered the energy carrier of the future. Its use as a fuel generates reduced pollution, as if burned it almost exclusively produces water vapor. Hydrogen can be produced from numerous sources, both of fossil and renewable origin, and with as many production processes, which can use renewable or non-renewable energy sources. To achieve carbon neutrality, the sources must necessarily be renewable, and the production processes themselves must use renewable energy sources. In this review article the main characteristics of the most used hydrogen production methods are summarized, mainly focusing on renewable feedstocks, furthermore a series of relevant articles published in the last year, are reviewed. The production methods are grouped according to the type of energy they use; and at the end of each section the strengths and limitations of the processes are highlighted. The conclusions compare the main characteristics of the production processes studied and contextualize their possible use.

scholarly journals Improvement of Hydrogen Production during Anaerobic Fermentation of Food Waste Leachate by Enriched Bacterial Culture Using Biochar as an Additive

2021 ◽  
Vol 9 (12) ◽  
pp. 2438
Author(s):  
Van Hong Thi Pham ◽  
Jaisoo Kim ◽  
Soonwoong Chang ◽  
Woojin Chung
Keyword(s):  
Renewable Energy ◽  
Hydrogen Production ◽  
Food Waste ◽  
Renewable Energy Sources ◽  
High Energy ◽  
Waste To Energy ◽  
Energy Sources ◽  
Hydrogen Yield ◽  
Food Waste Leachate ◽  
Waste Leachate

It has become urgent to develop cost-effective and clean technologies for the rapid and efficient treatment of food waste leachate, caused by the rapid accumulation of food waste volume. Moreover, to face the energy crisis, and to avoid dependence on non-renewable energy sources, the investigation of new sustainable and renewable energy sources from organic waste to energy conversion is an attractive option. Green energy biohydrogen production from food waste leachate, using a microbial pathway, is one of the most efficient technologies, due to its eco-friendly nature and high energy yield. Therefore, the present study aimed to evaluate the ability of an enriched bacterial mixture, isolated from forest soil, to enhance hydrogen production from food waste leachate using biochar. A lab-scale analysis was conducted at 35 °C and at different pH values (4, no adjustment, 6, 6.5, 7, and 7.5) over a period of 15 days. The sample with the enriched bacterial mixture supplemented with an optimum of 10 g/L of biochar showed the highest performance, with a maximum hydrogen yield of 1620 mL/day on day three. The total solid and volatile solid removal rates were 78.5% and 75% after 15 days, respectively. Acetic and butyrate acids were the dominant volatile fatty acids produced during the process, as favorable metabolic pathways for accelerating hydrogen production.

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