Adobe Stock
Adobe Stock

Swedish fluid handling, centrifugal and heat transfer company Alfa Laval has formed a partnership with new company Bisviridi to produce biofuels from organic waste.

Bisviridi is part of the BioteCH4 group, a leading UK anaerobic digestion (AD) operator.

The partnership combines Alfa Laval’s experience in separation technology with Bisviridi’s expertise in anaerobic digestion, Alfa Laval said on 7 December.

In a process developed and patented by Bisviridi, Alfa Laval’s Prodec Oil Plus decanter, which has been designed for maximum oil separation, is used in combination with AD to produce biofuels from oils and fats waste.

The process produced a product called Bio Crude, which could be used as an alternative to oil-based fuels and could potentially be further refined into sustainable aviation fuel (SAF) and produced at large-scale, the company said.

Bisviridi developed the patented process over three years.

“The fluctuation in oil prices over the last few years and the need for large biodiesel companies to find new sources of sustainable waste-oil streams has led us to develop a way of harnessing this waste material and diversify the output of the BioteCH4 business,” Bisviridi chief commercial officer Lee Dobinson said.

The Bisviridi process could be incorporated into any AD facility using the Alfa Laval Prodec Oil Plus decanter, producing up to 300 litres/hour of oil.

Oil is removed from the organic waste going through the AD process prior to the methanogenesis stage. Once the oils, fats and grease content has been removed from the feedstock, the remaining solid and liquid content is recombined, and continues back into the AD system with minimal impact on biogas production. With a purity up to 99.5%, the bio crude can then be sent to refineries for use in biofuel and SAF production.