February 10, 2017 by Emma Rayner Credit: University of Nottingham

A leading green energy scientist who uses bacteria to turn greenhouse gases into usable chemicals is calling for more investment from industry and government subsidies to scale up this newest of technologies.

Professor Nigel Minton from The University of Nottingham says there is significant potential for the industrial scaling up of the new process which uses 'gas-eating' bacteria to ferment polluting greenhouse gases from landfill and industry into useful products like biofuels and plastics.

A report, commissioned by Professor Minton's BBSRC-funded network of gas fermentation specialists C1net, says the UK should do more to increase the production of this new technology which could capture a large percentage of industrial waste gas from our factories and landfill.

As the burden on global oil and natural gas resources increases to meet demand for energy, plastics and medicines, the University's Synthetic Biology Research Centre has been engineering microorganisms to convert natural and waste gases into valuable chemical and fuel products.

The technology has been rolled out in commercial-scale demonstration plants in China and the US and could make a contribution to reducing greenhouse gas emissions and dependency on fossil resources. However, there is currently little industrial development and use of the technology in the UK.

Professor Minton is calling for the biofuel subsidies currently given to biomass processors to be extended to the gas fermentation industry: "Gas fermentation can produce low carbon fuels from a range of waste feedstocks that do not pose the risk of increasing demand for land, like biomass production does. But the new technology is not competing on a level playing field.

"Fuels produced from renewable feedstocks are eligible under the UK's Renewable Transport Fuel Obligation, but low carbon fuels produced from carbon-containing waste gases are currently not eligible to contribute towards the obligation, despite the greenhouse gas emissions reductions they can provide. This is proving a significant barrier to the commercial deployment of the gas fermentation processes. A broader and more encompassing framework is needed to increase the production of low carbon fuels in the UK. This could be achieved by focusing on the ultimate goal of lowering the greenhouse gas emissions of transport fuels, and supporting all low carbon fuels."

The BBSRC C1net report makes several recommendations to government's Department for Business, Energy & Industrial Strategy and the industry sector:

Developers of new processes, both in academia and industry, must credibly assess the economic viability of these processes, ensuring that they understand the conditions in which the processes will be commercially viable. They must also take a proactive approach in communicating the benefits of new products and processes.

Explore further: New app launched to explain benefits of carbon dioxide

More information: The commercial and strategic opportunity offered by gas fermentation in the UK: http://www.c1net.co.uk/documentation/Opportunities%20for%20gas%20fermentation%20in%20the%20UK%20-%20Final%20Report%20-%20July%202016.pdf

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Scientist calls for industrial scale-up of greenhouse gas-eating microbe technology in UK - Phys.Org