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Drax Partners for CO2 to Protein Conversion Tech
  UK

 June 17, 2019

Drax is working with biotech start-up Deep Branch Biotechnology to explore the feasibility of using the power station's carbon dioxide emissions to make proteins for sustainable animal feed products.

Deep Branch Biotechnology, a tech start-up based at Nottingham University, will place a pilot plant within Drax's Carbon Capture Usage and Storage (CCUS) Incubation Area at its power station in North Yorkshire.

It will extract flue gases from the power station's renewable electricity generation to feed to microbes, which can make single cell proteins for use in fish food and other sustainable animal feeds.

Drax Group CEO Will Gardiner said, "By giving partners like Deep Branch Biotechnology access to our CCUS Incubation Area we can test emerging technologies and explore their potential in delivering for both the climate and the economy."

"We want to create a cleaner environment for future generations whilst generating new jobs and export opportunities for British businesses. Technologies like this could enable some of our more difficult to decarbonise sectors, like agriculture, to make positive changes to address the climate crisis."

Drax Power Station is the biggest renewable electricity generator in the UK and the largest decarbonisation project in Europe having converted two thirds of the plant to use sustainable biomass instead of coal.

It is exploring the feasibility of using BECCUS technologies to help further reduce its emissions and contribute towards the UK meeting its climate targets. This is Drax's first incubation project exploring a market for carbon dioxide. The power station has also held discussions with the British Beer and Pub association about the possibility of captured CO2 being used to carbonate drinks.

A dedicated Incubation Area has been created at the power station to give other technology companies the opportunity to test their processes on its carbon dioxide.

the method they have developed for producing proteins from CO2, relies on an edible microbe that consumes carbon dioxide.

When fed carbon dioxide, the microbes grow and reproduce, enabling them to be continually harvested for protein whilst maintaining a growing culture. Under optimal conditions, up to 70 per cent of the material produced is protein.

The benefits of this process over other carbon capture technologies is that the CO2 does not need to be separated from the power station's flue gases before being fed to the microbes.

The USA is the world's biggest soy producer, producing one third of global supply, and uses 97% to produce animal feed. Over 60% of cereals grown globally are being used in animal feeds along with 20 million tonnes of ocean-caught fish.

Concerns about overfishing have seen the aquaculture (farmed fish) industry boom, yet this industry uses more than 15% of ocean-caught fish for feed, in the form of fishmeal.

The new proteins created using the Deep Branch biotechnology could help reduce the quantities of fish removed from the oceans. This not only minimises the impact on ecosystems, but decreases the amount of carbon dioxide in the atmosphere, mitigating the harmful effects of climate change.

The Deep Branch pilot will get underway in the autumn, when a demonstration plant will be installed within the Drax CCUS Incubation Area.

It aims to capture enough CO2 to produce 100kg of protein to be used to create feedstocks for fish and livestock. The protein generated from the project will be used in a trial project with a major feed producer.

If successful, Deep Branch Biotechnology plans to build a larger production facility by 2020 so it can produce several tonnes of protein per year. (Carbon Capture Journal)

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