Scientists warn that “blue” hydrogen, which is produced by dividing natural gas and capturing process emissions, can generate 20% more emissions in the life cycle than in natural gas.
The figures are the culmination of a new study published today (August 12) by a team of researchers at Cornell University, New York, and Stanford University in California.
Proponents of Blue Hydrogen often say that more than 90% of the emissions in the production process can be resolved using on-site carbon storage and storage (CCS) or CCU negotiations. About 90%. Scientists estimate that 85% of emissions are based on the degree to which they are captured.
Moreover, these concentrations are only related to the carbon dioxide released by the steam methane refining (SMR) part of the process – to produce a mixture of carbon monoxide and hydrogen during the steam heating process. Methane emissions from natural gas remain.
“Several unreported reports indicate that carbon dioxide emissions to blue hydrogen are 56% (when treated only by SMR process) to 90% (when exhaust gases are also treated) relative to hydrogen,” the report said. However, no data are available to support these assumptions, and they do not include emissions related to the energy required to activate carbon dioxide. Our results using our full life cycle review display [these] Estimates are very bright.
The study also shows ways in which the use of blue hydrogen is ineffective; It takes many tons of natural gas to produce one ton of blue hydrogen.
Co-author of the study, Cornell University Professor of Ecology and Environmental Biology, Robert Howart, states: Power transfer.
Our research is the first in a peer-reviewed journal to describe the high life cycle emissions of blue hydrogen. This is a warning sign to governments that the only “pure” hydrogen they should invest in public money is. Zero, green hydrogen from wind and solar energy.
In the UK policy section, the ten-point plan By 2030, 5GW will provide ሚሊዮን 500 million in government funding for hydrogen generation in a low-carbon country.
The term “low-carbon” serves as an umbrella for both blue and green hydrogen production, and the latter involves the distribution of water using 100% renewable energy-damaged electrolytes. The ministers said the government was adopting a “two-track” approach, but that according to some estimates, 75% of the low-carbon hydrogen funding has so far gone to the blue hydrogen sector.
Responding to the new study, David Cebon, a professor of mechanical engineering at the University of Cambridge, said: The calculation method is strong, all estimates are strong and the results are difficult.
Blue hydrogen cannot be considered a “low carbon” or “pure” solution.
The publication of the study aims to develop a hydrogen strategy for the Department of Business, Energy and Industry Strategy (BIS), which should add long-term transparency to the ten-point plan. The strategy was on July 22, before the parliamentary recess began.
Many large businesses continue to support blue hydrogen by the British government. BPP recently named corporate buyers for its planned blue hydrogen production facility in Tesseed, and Eugene lists plans to develop 1.8GW blue and green hydrogen production capacity in the UK by 2030.
In related news, researchers at the University of Sussex have published a paper stating that countries with significant “geopolitical influence”, such as Saudi Arabia and Russia, are trying to maintain their position as the world moves away from gray hydrogen. (Fossil-fuel not found with CCS or CCU).
The authors of the study, published in the journal Energy Research and Social Sciences, predict the struggle between countries such as the European Union and countries that hope to export green hydrogen.
Co-author Morgan de Basilian states: “In the transition from fossil fuels to a low-carbon economy, the focus of geopolitical issues may shift from where these energy sources, technological development centers and resources are located. Essential materials are available.
The study is entitled “Industrial Decommissioning through Hydrogen: Development and Critical, Systematic Evaluation, Socio-Technical Systems and Policy Options.”