Pathways to a Hydrogen Future

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Hydrogen production from either 2 mM GP or 2 mM starch glucose equivalent. Figure 3. Carbon dioxide production from either 2 mM GP or 2 mM starch glucose equivalent.

High-Yield Hydrogen Production from Starch and Water by a Synthetic Enzymatic Pathway

Figure 4. Discussion There are four other means converting biomass to hydrogen: 1 direct polysaccharide gasification [8] , [13] ; 2 direct glucose chemical catalysis after polysaccharide hydrolysis [10] , [11] ; 3 anaerobic fermentations [9] , [15] , [18] ; and 4 polysaccharide- or glucose-ethanol fermentations [27] — [29] followed by ethanol chemical reforming [12].

Materials and Methods All chemicals and enzymes were purchased from Sigma Co, unless otherwise noted. Table 1. The enzymes used for hydrogen production from starch and water, and their reaction mechanisms, sources, and amounts used in the reaction. Figure 5. Acknowledgments We thank Dr.

Hydrogen powered future tops full electrification

References 1. Science — View Article Google Scholar 2. Morris D The next economy: from dead carbon to living carbon. J Sci Food Agric — View Article Google Scholar 3.

Hydrogen – a green energy solution of the future

View Article Google Scholar 4. View Article Google Scholar 5. Nature — View Article Google Scholar 7. Schlapbach L, Zuttel A Hydrogen-storage materials for mobile applications. View Article Google Scholar 8. Ind Eng Chem Res — View Article Google Scholar 9.

Power-to-X: The path to a CO2-free future

Int J Hydrogen Energy — View Article Google Scholar Biomass Bioenergy — Endy D Foundations for engineering biology. Nat Rev Genetics 6: — Int J Hydrogen Energy 13— Trends Plant Sci 7: — New York: W.

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J Bacteriol — Smil V Energies: An illustrated guide to the biosphere and civilization. Biotechnol Bioeng — Microbiol Mol Biol Rev — Biotechnol Adv — Trends Biotechnol — For example, in there were periods greater than eight hours 40 per cent of the year when wind generation was below 20 per cent of nameplate capacity. The relative difference between the generation capital costs and the additional costs for either pathway is important.

Cost associated with appliances are not included in this assessment as any conversion would take time, allowing appliances to be replaced gradually. Infrastructure upgrades would be required under either scenario. Electricity networks would need to be strengthened for the electrification pathway and new pipelines and hydrogen storage may be needed for the hydrogen pathway.

The total costs, including the base costs of converting current electricity demand to renewables, is shown for each of the pathways below. The results forecast the hydrogen pathway is 40 per cent less expensive than the full electrification pathway. While several simplifying assumptions were made to reduce the complexity of the modelling task, the results suggest we should be working on the hydrogen conversion decarbonisation pathway.

Dr Finkel outlines three drivers for hydrogen. These include the potential for energy export, the domestic economy and energy system resilience. Hydrogen used more extensively as a clean fuel for domestic, public and commercial transport also has great potential.

Electric vehicles stack up best

Hydrogen is a versatile fuel that can be produced from many sources and act as an energy carrier. Hydrogen fuel cells do not produce emissions, only electrical power, water, and heat. When used with hydrogen from renewable sources, hydrogen fuel cells offer a zero emission option that can be scaled for many applications including motive power for vehicles, space and water heating in communities, space and process heat for industry, and power for remote, backup, and critical applications.


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Hydrogen power-to-gas P2G applications enable greater use of renewable power from intermittent sources such as wind and solar. While it is early stage in terms of global deployments, there has undoubtedly been a marked increase in activity and interest.

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Canada is well-positioned to benefit from growing international demand for hydrogen and fuel cells. Based on collaboration and investments made by both the public and private sectors in past decades, Canada has a hydrogen and fuel cell sector that thrives in export markets and that includes global leaders, Ballard Power Systems and Hydrogenics. Their fuel cell and electrolyser technologies are in use in thousands of fuel cell vehicles FCEVs including transit buses and in hundreds of hydrogen fueling stations around the world.

Yet, for Canada to fully benefit from these innovative technologies, they need to be put to use at home. There are twelve potential end use pathways where hydrogen and fuel cell technologies could be deployed. These pathways can be grouped by category based on transportation, communities, industrial use or power generation.


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