The Minnesota biofuels industry has been evolving since its inception, which was discussed in Part 1 of this feature article. In this part, we look at how the industry is taking shape in Minnesota and what some of the most promising new technologies are on the horizon.
An interesting element of the biofuel industry is that while it is evolving on a national level, it has also evolved locally. Tim Rudnicki, executive director of the Minnesota Bio-Fuels Association, explains that states and regions have differing available resources as well as differing types and tons of biomass available.
“Biofuel producers in any particular region adapt to the availability of various resources including, for example, access to energy, water, transportation infrastructure and so on,” says Rudnicki. “The availability of these important resources helped to accelerate the evolution of the biofuel industry in Minnesota and is what has made, and will continue to make, Minnesota one of the leading states when it comes to the production of biofuels.”
It’s interesting to review what could be deemed the top improvements that the ethanol industry has adopted over the past few years. Randall Doyal, CEO of Al-Corn Clean Fuel, says that since the plant went online they have adapted their process and technology to reduce down time, increase throughput and increase yield.
Al-Corn was designed as a 10 million gallon per year plant, and today they are operating at 50 million gallons per year. “We have increased our fuel ethanol yield from two and a half gallons per bushel to over two point nine gallons per bushel,” says Doyal. “We have added CO2 recovery, distillers corn oil recovery, and focused on our distillers grains quality to add value to our ethanol production.”
So, what are the new best technologies coming down the pipeline? Rudnicki says the future is very exciting because it will involve many facets including the interface between biological processes and technology. He believes some of the processes to watch include technologies that will enable corn oil to be more efficiency extracted as well as the use of existing biomass.
From an ethanol plant perspective the next three to five years could bring big changes. Continue reading