A review of four case studies assessing the potential for hydrogen penetration of the future energy system

Chapman, Andrew; Itaoka, Kenshi; Hirose, Katsuhiko; Davidson, F. Todd; Nagasawa, Kazunori; Lloyd, A. C.; Webber, Michael E.; Kurban, Zeynep; Managi, Shunsuke; Tamaki, Tetsuya; Lewis, Michael; Hebner, Robert E.; Fujii, Yasumasa

doi:10.1016/j.ijhydene.2019.01.168

Cited by 257 publications

(65 citation statements)

References 19 publications

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“…H 2 can be generated from diverse resources, including water, biomass, natural gas, or (after gasification) coal. Currently, around 95 % of the world‘s total H 2 production is achieved by steam reforming natural gas or other fossil fuels, which requires high temperature and pressures . Furthermore, the produced H 2 by this pathway will be unavoidably contaminated by a high concentration of carbon monoxide (CO), which affects the purity of H 2 and also poisons catalysts during operation.…”

Section: Introductionmentioning

confidence: 99%

“…Currently, around 95 % of the world's total H 2 production is achieved by steam reforming natural gas or other fossil fuels, which requires high temperature and pressures. [6][7][8] Furthermore, the produced H 2 by this pathway will be unavoidably contaminated by a high concentration of carbon monoxide (CO), which affects the purity of H 2 and also poisons catalysts during operation. More importantly, production of H 2 by steam reforming still cannot relieve dependencies on legacy fossil sources or reduce the coproduction and release of pollutants.…”

Section: Introductionmentioning

confidence: 99%

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Recent Advances in Electrochemical Hydrogen Production from Water Assisted by Alternative Oxidation Reactions

2019

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Water electrolysis has been considered a promising avenue for ultrapure hydrogen production. However, the energy efficiency of conventional water electrolysis technologies is severely hampered by the kinetic limitations of the anodic oxygen evolution reaction (OER). Over the past decade, an innovative hybrid water electrolysis strategy of replacing the OER with more facile oxidation reactions and coupling with the cathodic hydrogen evolution reaction (HER) has been developed and demonstrated its utility of addressing the critical challenges in conventional water electrolysis. In this Review, we summarize the recent progress concerning electrochemical hydrogen production from water through hybrid water electrolysis technology, with special emphasis on the selection of electrocatalysts and alternative anodic oxidation reactions as well as the related mechanisms involving in electrochemical reactions. Finally, the current challenges and some perspectives are also discussed for the future development of hybrid water electrolysis technology.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Recent Advances in Electrochemical Hydrogen Production from Water Assisted by Alternative Oxidation Reactions

2019

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“…In recent years, the demand for renewable and sustainable energy has reached a peak due to the depletion of fossil fuel resources and increasing environmental problems. Various renewable sources such as wind [1][2][3], wave [4][5][6], hydrogen [7][8][9], and solar [10][11][12] energies have been intensively investigated and commercialized. Among these, solar energy is one of the most important sources to harness energy for future applications.…”

Section: Introductionmentioning

confidence: 99%

Grid-Connected Photovoltaic Systems with Single-Axis Sun Tracker: Case Study for Central Vietnam

Cuong

Nguyen

et al. 2020

Energies

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Recently, the demand for small grid-connected photovoltaic (PV) systems has been rapidly increasing; this is due to the reduction in the costs of grid-connected storage systems as compared to those of the stand-alone ones. Notably, the performance of the solar tracking system is not only depending on the types but also the region that they are set up and used. To understand how solar tracking systems work globally, we need to know their performance in each country and even the different parts of a country. In this study, two grid-connected PV systems with 250 W solar modules were used to investigate the efficient improvement of a single-axis sun tracking system in Central Vietnam. First, a mechanical tracking device with a linear actuator and a controller was designed and then its performance was comprehensively investigated with a grid-connected PV system. In addition to evaluating the energy gain by the tracking system, this study also considered the energy consumption of the linear actuator with its controller and a small grid-connected PV system; this has generally been omitted in previous works. Experimental results indicate that the total energy consumption of the tracking system was approximately 2–8% of the energy generated by the grid-connected PV system. The maximum overall energy generation was confirmed to have increased by up to 30.3% on a sunny day upon using the proposed tracking system; further, the net energy gain by using the sun tracker was ascertained to be 15.2% in average weather conditions. Based on the success of this work, we will keep experimenting with other parts of Vietnam. Also, we will collaborate with colleagues in other countries to create a guideline for understanding and using the solar tracker regionally and globally.

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“…Moreover, H 2 has been reported to have high energy yield (about 122 kJ/kg) making it better than fossil fuel. 10 As a result of this, several technological routes such as coal and biomass gasification, 11 hydrocarbon reforming, 12 thermochemical water splitting, 13 photo-electrolysis, 14 and biomass pyrolysis 15 have been employed to achieve the possibility of producing H 2 in abundance and make it readily available. Due to its importance and applications in industrial processes, H 2 has been adjudged as the energy of the future.…”

Section: Introductionmentioning

confidence: 99%

“…Due to its importance and applications in industrial processes, H 2 has been adjudged as the energy of the future. 10 As a result of this, several technological routes such as coal and biomass gasification, 11 hydrocarbon reforming, 12 thermochemical water splitting, 13 photo-electrolysis, 14 and biomass pyrolysis 15 have been employed to achieve the possibility of producing H 2 in abundance and make it readily available. According to Parthasarathy and Narayanan, 16 the various feedstock used for the production of H 2 includes coal, natural gas, liquid hydrocarbons, and other alternative sources.…”

Section: Introductionmentioning

confidence: 99%

Experimental and optimization studies of hydrogen production by steam methane reforming over lanthanum strontium cobalt ferrite supported Ni catalyst

et al. 2019

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Summary Over the years, research focused has been on the development of active and stable catalysts for hydrogen (H2) production by steam methane reforming (SMR). However, there is less attention on the individual and interaction effect of key process parameters that influence the catalytic performance of such catalysts and how to optimize them. The main objective of this study is to investigate the individual and interaction effects of key parameters such as methane partial pressure ( PCH4true) (10‐30 kPa), steam partial pressure ( PH2normalO()gtrue) (10‐30 kPa), and reaction temperature (T) (750‐850°C) on H2 yield and methane (CH4) conversion during SMR using Box‐Behnken experimental design (BBD) and response surface methodology. The H2 production was catalyzed using Ni/LSCF prepared by wet impregnation method. The evaluation of the Ni/LSCF using different instrument techniques revealed that the catalyst exhibited excellent physicochemical properties suitable for SMR. Response surface models showing the individual and interaction effect of each of the parameters on the H2 yield and CH4 conversion were obtained using the set of data obtained from the BBD matrix. The three parameters were found to have significant effects on the H2 yield and CH4 conversion. At the highest desirability of 0.8994, maximum H2 yield and CH4 conversion of 89.77% and 89.01%, respectively, were obtained at optimum conditions of 30 kPa, 28.86 kPa, and 850°C for PCH4, PH2normalO()g, and temperature, respectively. The predicted values of the responses from the response surface models were found to be in good agreement with the experimental values. At optimum conditions, the catalyst was found to be stable up to 390 minutes with time on stream. The characterization of the used catalyst using thermogravimetric analysis, scanning electron microscopy, energy‐dispersive X‐ray spectroscopy, and transmission electron microscopy showed some evidence deposition of a small amount of carbon on the catalyst surface.

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A review of four case studies assessing the potential for hydrogen penetration of the future energy system

Cited by 257 publications

References 19 publications

Recent Advances in Electrochemical Hydrogen Production from Water Assisted by Alternative Oxidation Reactions

Recent Advances in Electrochemical Hydrogen Production from Water Assisted by Alternative Oxidation Reactions

Grid-Connected Photovoltaic Systems with Single-Axis Sun Tracker: Case Study for Central Vietnam

Experimental and optimization studies of hydrogen production by steam methane reforming over lanthanum strontium cobalt ferrite supported Ni catalyst

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