Techno-economic Analysis of Renewable Hydrogen Production via SCWG of Biomass Using Glucose as a Model Compound

2014 ◽  
pp. 445-471
Author(s):  
Dawood Al-Mosuli ◽  
Shahzad Barghi ◽  
Zhen Fang ◽  
Chunbao Xu
Keyword(s):  
Hydrogen Production ◽  
Economic Analysis ◽  
Model Compound ◽  
Renewable Hydrogen

scholarly journals Hydrogen Production from Steam Reforming of Acetic Acid as a Model Compound of the Aqueous Fraction of Microalgae HTL Using Co-M/SBA-15 (M: Cu, Ag, Ce, Cr) Catalysts

Catalysts ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 1013 ◽  
Author(s):  
Pedro J. Megía ◽  
Alicia Carrero ◽  
José A. Calles ◽  
Arturo J. Vizcaíno
Keyword(s):  
Acetic Acid ◽  
Hydrogen Production ◽  
Steam Reforming ◽  
Fossil Fuels ◽  
Model Compound ◽  
Complex Mixture ◽  
Coke Deposition ◽  
Aqueous Fraction ◽  
Thermochemical Processing ◽  
Renewable Hydrogen

Hydrogen production derived from thermochemical processing of biomass is becoming an interesting alternative to conventional routes using fossil fuels. In this sense, steam reforming of the aqueous fraction of microalgae hydrothermal liquefaction (HTL) is a promising option for renewable hydrogen production. Since the HTL aqueous fraction is a complex mixture, acetic acid has been chosen as model compound. This work studies the modification of Co/SBA-15 catalyst incorporating a second metal leading to Co-M/SBA-15 (M: Cu, Ag, Ce and Cr). All catalysts were characterized by N2 physisorption, ICP-AES, XRD, TEM, H2-TPR, H2-TPD and Raman spectroscopy. The characterization results evidenced that Cu and Ag incorporation decreased the cobalt oxides reduction temperatures, while Cr addition led to smaller Co0 crystallites better dispersed on the support. Catalytic tests done at 600 °C, showed that Co-Cr/SBA-15 sample gave hydrogen selectivity values above 70 mol % with a significant reduction in coke deposition.

scholarly journals CO2 Utilization Technologies: A Techno-Economic Analysis for Synthetic Natural Gas Production

Energies ◽  
2021 ◽  
Vol 14 (5) ◽  
pp. 1258
Author(s):  
Szabolcs Szima ◽  
Calin-Cristian Cormos
Keyword(s):  
Hydrogen Production ◽  
Natural Gas ◽  
Economic Analysis ◽  
Performance Indicators ◽  
Biomass Gasification ◽  
Gas Production ◽  
Synthetic Natural Gas ◽  
Levelized Cost ◽  
Production Capacities ◽  
Renewable Hydrogen

Production of synthetic natural gas (SNG) offers an alternative way to valorize captured CO2 from energy intensive industrial processes or from a dedicated CO2 grid. This paper presents an energy-efficient way for synthetic natural gas production using captured CO2 and renewable hydrogen. Considering several renewable hydrogen production sources, a techno-economic analysis was performed to find a promising path toward its practical application. In the paper, the five possible renewable hydrogen sources (photo fermentation, dark fermentation, biomass gasification, bio photolysis, and PV electrolysis) were compared to the two reference cases (steam methane reforming and water electrolysis) from an economic stand point using key performance indicators. Possible hydrogen production capacities were also considered for the evaluation. From a technical point of view, the SNG process is an efficient process from both energy efficiency (about 57%) and CO2 conversion rate (99%). From the evaluated options, the photo-fermentation proved to be the most attractive with a levelized cost of synthetic natural gas of 18.62 €/GJ. Considering the production capacities, this option loses its advantageousness and biomass gasification becomes more attractive with a little higher levelized cost at 20.96 €/GJ. Both results present the option when no CO2 credit is considered. As presented, the CO2 credits significantly improve the key performance indicators, however, the SNG levelized cost is still higher than natural gas prices.

scholarly journals Energy, exergy, and environmental analyses of renewable hydrogen production through plasma gasification of microalgal biomass

Energy ◽  
2021 ◽  
Vol 223 ◽  
pp. 120025
Author(s):  
Po-Chih Kuo ◽  
Biju Illathukandy ◽  
Wei Wu ◽  
Jo-Shu Chang
Keyword(s):  
Hydrogen Production ◽  
Microalgal Biomass ◽  
Plasma Gasification ◽  
Renewable Hydrogen

Techno-economic analysis of green hydrogen production from biogas autothermal reforming

2017 ◽  
Vol 19 (5) ◽  
pp. 1437-1447 ◽  
Author(s):  
Y. S. Montenegro Camacho ◽  
S. Bensaid ◽  
G. Piras ◽  
M. Antonini ◽  
D. Fino
Keyword(s):  
Hydrogen Production ◽  
Economic Analysis ◽  
Autothermal Reforming

Hierarchical Microsphere MOF Arrays with Ultralow Ir Doping for Efficient Hydrogen Evolution Coupled with Hydrazine Oxidation in Seawater

2021 ◽  
Author(s):  
Xuejun Zhai ◽  
Qingping Yu ◽  
Guishan Liu ◽  
Junlu Bi ◽  
Yu Zhang ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Hydrogen Evolution ◽  
Oxygen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Oxygen Evolution Reaction ◽  
Water Electrolysis ◽  
Efficient Catalyst ◽  
Hydrazine Oxidation ◽  
Renewable Hydrogen

Hydrogen evolution reaction (HER) based on water electrolysis is promising for renewable hydrogen production. Limited by sluggish anodic oxygen evolution reaction (OER), rational fabrication of efficient catalyst for HER coupled...

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