Blue Hydrogen twice as bad as Grey Hydrogen!, page-3

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alecfra

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10/06/21

22:50

Post #: 53780647
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Originally posted by Bigbudah: ↑

A google search which you have done shows that there have been many LCA's on CO2-EOR over the years. All of these draw the boundaries of analysis in different places and are difficult to compare. I am no expert but it is a subject of much dispute.

The below is another LCA completed in 2019:

https://www.osti.gov/pages/biblio/1493096

"The results showed that all CO₂-EOR evaluated scenarios start operating with a negative carbon footprint and, years into the project, transitioned into operating with a positive carbon footprint. The transition points were significantly different in each scenario. "
From one of your sources above:

https://hydrogencouncil.com/wp-content/uploads/2021/04/Hydrogen-Council-Report_Decarbonization-Pathways_Part-1-Lifecycle-Assessment.pdf

"For blue hydrogen, decarbonization of the power supply (for 2050, we assume 86% renewable share, 90% including nuclear) also allows for significant emissions reduction: hydrogen from natural gas with 98% CCS capture rate using ATR technology will achieve life-cycle emissions comparable to 100% solar powered electrolysis when the ATR is powered with fully decarbonized energy.""Results from life-cycle assessments of GHG emission for hydrogen supply shows that natural gas with CCS and renewable power for water electrolysis can achieve low and marginal well-touse GHG emissions, including end-of-life, respectively. For fossil primary energies with CCS, a number of requirements must be met, namely sweet natural gas sources, highest capture rates (98% assumed in the eight illustrative pathways), as well as best available technologies and operational practices."

Air products have announced they will use ATR (Auto-Thermal Reforming) which enables this 98% percentage carbon capture....

https://www.airproducts.com/campaigns/alberta-net-zero-hydrogen-complex

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this needs repeating
Air products have announced they will use ATR (Auto-Thermal Reforming) which enables this 98% percentage carbon capture....

https://www.airproducts.com/campaigns/alberta-net-zero-hydrogen-complex

HXG Price at posting: 8.5¢ Sentiment: Buy Disclosure: Held
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