The possible climate impacts of blue hydrogen vary accordingly: while the climate impact of adding CCS with the highest assumed methane emission rate (8%) – even with high
2024621 · The GHG footprint of blue hydrogen is 3.3 kgCO 2 e kg H 2 −1 for the mid-range value of 1.5% methane emission 34, which we consider as the default value for
202351 · However, blue hydrogen, produced from fossil fuels with CO 2 capture, is currently viewed as the bridge between the high-emission grey hydrogen and the limited
2024621 · indicate emission ranges for hydrogen production from steam methane reforming (grey H 2 ) and from steam methane reforming combined with 93% CO 2
2021812 · Emissions of blue hydrogen are less than for gray hydrogen, but not greatly so: perhaps surprisingly, only by about 9% to 12%. "Blue hydrogen is hardly emissions free," wrote the researchers. "Blue hydrogen as a strategy only works to the extent it is possible to store carbon dioxide long-term indefinitely into the future without
2020827 · First, ''grey'' hydrogen. The vast majority of hydrogen in use — and there is plenty of it, mainly in industry — is made from natural gas. The process emits CO 2.
20201231 · Blue hydrogen is based on the idea that the current processes used to produce hydrogen from fossil fuels could be coupled to CCS technologies to decrease most of their GHG emissions. While this
2023912 · The hype for blue hydrogen has spread across the United States, thanks to backing from the fossil fuel industry and incentives from the U.S. government. Without offering any proof, advocates repeatedly tout blue hydrogen as a clean, low-carbon way to produce energy from methane or coal, while reducing the world''s greenhouse gases
2022428 · Emissions of blue hydrogen are less than for gray hydrogen, but only by about 9% to 12%. "Blue hydrogen is hardly emissions free," wrote the researchers. "Blue hydrogen as a strategy only works to the extent it is possible to store carbon dioxide long-term indefinitely into the future without leakage back to the atmosphere."
202341 · Processes of blue hydrogen production are reviewed. • Blue hydrogen can reduce the carbon emissions compared to natural gas. • Carbon emissions can be stored
The possible climate impacts of blue hydrogen vary accordingly: while the climate impact of adding CCS with the highest assumed methane emission rate (8%) – even with high removal rates – is limited to a reduction of GHG emissions by about 45% (GWP100) or 26% (GWP20), using natural gas from a supply chain with only 0.2% methane emission rate
2020827 · Today, grey hydrogen costs around €1.50 kg –1, blue hydrogen €2–3 kg –1 and green hydrogen €3.50–6 kg –1. Consultants estimate that a €50–60 per tonne carbon price could make
2022923 · To make BIL hydrogen hub application and to evalue 45V tax credits, it requires a deep understanding of hydrogen carbon intensity through lifecycle analysis. With upstream emissions in the lifecycle GHG emissions, such as natural gas recovery and processing, it is important to check the carbon intensity by production technology and by
2019423 · That type is known as "grey" hydrogen. A cleaner version is "blue" hydrogen, for which the carbon emissions are captured and stored, or reused. The cleanest one of all is "green" hydrogen, which is generated by renewable energy sources without producing carbon emissions in the first place.
20221017 · The environmental impact of blue hydrogen may vary over large ranges but depends on only a few key parameters: the methane emission rate of the natural gas supply chain, the CO 2 removal rate at
Hydrogen can be produced in several ways, but if it is to help in the battle with climate change, the hydrogen produced will need to be low carbon. Blue hydrogen will generally have a larger greenhouse gas footprint compared to green hydrogen since not all emissions from hydrogen production can be abated.
20231114 · When blue hydrogen and carbon capture technologies are used together, a promising partnership is formed. That is because when combining them, they present a promising synergy in the reduction of carbon emissions. The carbon dioxide generated during the production of blue hydrogen can be captured using carbon capture technology
Natural gas based hydrogen production with carbon capture and storage is referred to as blue hydrogen. If substantial amounts of CO 2 from natural gas reforming are captured
2021812 · We undertake the first effort in a peer-reviewed paper to examine the lifecycle greenhouse gas emissions of blue hydrogen accounting for emissions of both carbon dioxide and unburned fugitive methane.
2023912 · In short, fossil fuel-based "blue" hydrogen is a bad idea. Blue hydrogen''s environmental benefits rest largely on the assumptions baked into a Department of Energy (DOE) model named GREET (Greenhouse Gases, Regulated Emissions and Energy use in Transportation) that is the congressionally mandated evaluation tool for U.S. hydrogen