In the United States (US), Hitachi Zosen Inova USA LLC (HZIU), a subsidiary of Swiss-Japanese environmental technology major Hitachi Zosen Inova AG (HZI), has announced that it has entered into an agreement with renewable natural gas (RNG) project developer 3 Rivers Energy Partners (3RE) to design and construct a new anaerobic digestion (AD) plant, which will utilize spent stillage from the bourbon industry and turn waste into energy.
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Hitachi Zosen Inova USA has been contracted to design, supply and install an integrated RNG plant consisting of 648 000 US gallons (≈2.45 million litres) per day wet anaerobic digester (AD), amine biogas upgrader system (BGU), and integrated process piping and controls for 3 Rivers Energy Partners.
When it came time to pick a partner to help us build one of the country’s largest renewable natural gas production and treatment facilities, we knew we needed a company with superior expertise and experience. Hitachi Zosen Inova was a clear choice for us, said John Rivers, CEO of 3 Rivers Energy Partners.
The 3 Rivers Energy Partners owned and operated facility will utilize the new wet AD technology that will use spent stillage as the feedstock allowing the plant to turn waste into energy.
The AD system will power an adjacent distillery with RNG, providing 65 percent of its gas needs. Importantly, the RNG facility will help to reduce overall greenhouse gas (GHG) emissions by 50 percent.
HZI is very excited to execute what we anticipate will be one of many innovative renewable energy projects with 3 Rivers Energy Partners. Providing integrated energy recovery solutions from waste products is fundamentally what HZI does, and this supports our vision for the future, said Joe Szczepkowski, Sales Manager at HZIU.
Once in operation, this facility will produce approximately 2 700 SCFM (≈ 4333 Nm3/hr) of RNG to power the adjacent distillery.
Finally, the by-product from the AD and RNG processes is the production of a fertilizer which can then be used in local agriculture.
The construction and later commissioning phases of the facility can now commence, with operations at the new AD and RNG facilities expected to start in December 2024.
Providing large-scale, innovative, and integrated waste-to-renewable gas solutions to companies like 3 Rivers Energy Partners, highlights the confidence that iconic brands and developers have in HZI’s team and its capabilities in the US, said Heath Jones, HZI’s Managing Director for North America.
