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Trillium H2 Power selects Shell Blue Hydrogen Process

Trillium H2 Power LLC (tH2 Power) has awarded Shell Catalysts & Technologies a contract to deliver a Shell Blue Hydrogen Process (SBHP) license agreement. The license is for tH2 Power, which involves building multiple large-scale, low-carbon-hydrogen-fuelled power generation and manufacturing projects at the former Portsmouth Gaseous Diffusion Plant in rural Pike County, Ohio, with additional sites in Central Appalachia.

All tH2 Power projects will begin with the production of 500 t/d of decarbonized (blue) hydrogen in Phase 1. Natural gas will be used for the feedstock, and the carbon dioxide produced by this process will be captured and permanently stored in the geologic formations available throughout the region. A portion of the decarbonized hydrogen will fuel low-carbon power, sustainable transportation fuels and other low-carbon products. The total amount of CO2 stored at each site is expected to be approximately 1.6 M tonnes per annum.

The SBHP uses Shell gas partial oxidation (SGP) technology and, in comparison with other technology options (including steam methane reforming [SMR] and autothermal reforming [ATR]), it captures CO2 at higher pressures and larger scales, which results in a lower levelized cost of hydrogen and lowers the overall lifecycle emissions at each site.

Compared with other technologies, SBHP has a simpler line-up, with no need for substantial feed gas pretreatment, and does not require a fired heater that emits carbon dioxide. It also generates, rather than consumes, steam to satisfy the demands of the process.

It integrates two proven technologies: ADIP ULTRA and Shell gas partial oxidation (SGP). ADIP ULTRA is a proven solvent technology for capturing carbon dioxide from high-pressure process streams; SGP is an oxygen-based system with direct firing in a refractory-lined reactor. It requires little or no feed-gas pretreatment, is a non-catalytic process that produces high-pressure steam from waste heat rather than consuming it and has no direct carbon dioxide emissions.

SGP has more than 30 active gas and residue gasification licensees, and there are more than 100 SGP gasifiers worldwide.

Comments

Davemart

Here is what Norway is up to in developing piping of CO2 for sequestration:

https://techxplore.com/news/2024-02-upscaling-technology-large-scale-carbon.html

' At present, there are only very few CO2 storage projects in operation in Norway, and all are based on the injection of gas derived from a single source and using a single well. The Northern Lights project is aiming to store CO2 at a much larger scale, involving more complex operations by which gas from multiple sources will be transported and injected using a network of different wells. The CO2 will be captured from processes such as waste incineration and cement manufacture.'

Presumably this is also relevant to the production of blue hydrogen.

SJC

The good part of this is it's pure CO2 there's no NOx like you get from a power plants. People say power plant sequestration is too expensive because they claim you have to separate the CO2 before you store it. You don't, it takes more storage space to store but you can use the NOx for nitrogen fertilizer so just store it all then separate it when you use it.

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