Bright Renewables, part of the Netherlands-headed bioenergy technology company HoSt Group, has announced that it has been awarded a contract for the realization of a turnkey carbon dioxide liquefaction plant on the West Coast of the United States (US).
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The 800 kg per hour capacity carbon dioxide (CO2) liquefier will be added to an existing biogas upgrader and will purify and liquefy carbon dioxide coming from the biogas to biomethane (aka renewable natural gas – RNG) upgrading process.
There is an ever-increasing market demand for small-scale liquid CO2 production facilities. CO2 consumers are looking for more independence from large producers and biogas producers are looking to reduce their CO2 emissions, said Jafeth Bulsink, Business Developer at Bright Renewables.
Liquid bioCO2 or green CO2 is the end-product, which will be applied in the company’s industrial processes resulting in greater independency on CO2 derived from natural gas.
We are happy to have grown into a technology provider with biogas upgrading, and cryogenic technologies, including CO2 liquefaction and bioLNG, and carbon capture technology in our portfolio. This allows Bright to contribute to global CO2-reductions in various ways, said Jafeth Bulsink.
Bright has realized over 25 biogas upgrading projects with membrane technology in the US and nearly 200 projects worldwide.
Clean CO2 liquefaction technology
According to Bright Renewables, a Bright CO2 liquefaction plant, with in-house CO2 liquefaction technology, is a prefab compact containerized technology based on an in-house developed cryogenic process with clean circular cooling.
Liquefaction of the green carbon dioxide enables an additional revenue stream by producing liquid bioCO2 for among others the horticulture-, food- and refrigeration industry.
Currently, our technology is particularly interesting for biogas production facilities from 500 SCFM (800 Nm3/hr) biogas production, but we continue to develop the technology to be beneficial for even smaller scales, said Jafeth Bulsink.
Low CI score
In States such as California (CA), and Oregon (OR), a Low Carbon Fuel Standard (LCFS) has been established in which the carbon intensity (CI) score of the fuel is of importance.
The score, the lower the better, is used to measure all greenhouse gas (GHG) emissions associated with the production, distribution, and consumption of transportation fuels including RNG.
As CO2 liquefaction may reduce methane slip during the biogas upgrading process, a CO2 liquefaction plant as an add-on technology to a biogas plant with biogas upgrading technology could lower the CI score of the biomethane (RNG) produced at the plant.
