A path towards decarbonization through hydrogen blending
In this blog, we touch on the topic of transitioning between natural gas to hydrogen, from the Is the Energy […]
With the help of process measurement solutions from Endress+Hauser, a new Long Ridge Energy (LRE) power plant is successfully showcasing the viability of clean hydrogen in the global Power & Energy industry.
As the world grapples with climate change and natural resource limitations, governments, companies, and communities are heavily investing in the evaluation of various renewable energy solutions. Renewable sources of hydrogen are growing in importance as an alternative means of storing energy because they can be converted to heat and electricity by fuel cells or gas turbines at any time.
The turbine at LRE’s Hannibal, Ohio USA facility accept natural gas as a feedstock. Although better for the environment than coal, natural gas is a fossil fuel which makes it subject to scrutiny from regulatory bodies and local communities. Hydrogen burns cleaner, providing a path for partially decarbonizing the fuel source.
The challenges at hand
Blending hydrogen with natural gas poses an increased risk of explosion, fire management, and environmental impact. Before injecting hydrogen into its existing natural gas grid infrastructure LRE, had to carefully mitigate these risks.
Therefore, at the start of the project, the company set strict hydrogen cofiring requirements, including:
• An accurate hydrogen injection system with blend validation
• The ability to scale operations easily and efficiently
• Modern, smart measurement technology
• Top-priority safety assurances
Do you want to learn more? Check out our video and full case study!
A solution is found with reliable instrumentation
LRE has completed four comprehensive and successful tests of injecting and controlling 5% blends of hydrogen into natural gas to date. By obtaining its hydrogen for injection from a local chemical manufacturer’s byproduct and relying on the process automation expertise of its Endress+Hauser technology partner, LRE was able to accomplish their primary objectives. Company stakeholders teamed up with Endress+Hauser to provide consulting services and reliable measurement instrumentation to safely control the sensitive hydrogen-natural gas blend.
The facility was fitted with a Coriolis flowmeter and a Raman spectroscopy-based analyzer to measure and validate hydrogen blending, plus a main fuel flowmeter downstream of the hydrogen injection point.
blend, trimming the Coriolis meter-driven doping control and
preventing hydrogen overshoot.
Accurate multivariable measurement
Endress+Hauser’s Proline Promass Q Coriolis flowmeter was selected for use at the hydrogen injection point for blending into the fuel system. Downstream of the injection point, a Proline Promass F Coriolis flowmeter was installed to monitor the main line gas flow. Both Endress+Hauser flowmeters at the installation site are used in accordance with EPA fuel flow standards for calculating emissions, including adjusted emissions after introducing hydrogen.
Real-time chemical composition measurement
The team also added a Raman Rxn5 to the process to perform blend validation in order to mitigate the consequences of an off-balance gas blend, especially one with a high hydrogen content.
“Here at Long Ridge, we had a first in the world achievement blending hydrogen in our fuel, working toward sustainable energy.”
Mark Berry, Program Manager, Long Ridge Energy
Clean hydrogen power provides local economic renewal
In addition to helping reduce the world’s greenhouse gas footprint, another positive outcome of LRE’s renewable energy initiatives is the revival of the surrounding economic community. The new power plant has helped to restore economic stability in the area, bringing back hundreds of jobs lost due to the 2013 closure of a 50- year-old aluminum smelter at the same location.
To learn more about how Endress+Hauser has helped LRE pave the way for a more sustainable future read the full case study!
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