USDA Agricultural Research Service scientists in California have come up with a device that is purported to increase the efficiency of ethanol refineries.
This story from the ARS web site says chemical engineers Richard D. Offeman and George H. Robertson at the ARS Western Regional Research Center in Albany, Calif., believe their device using special permeable plastic membranes will reduce energy costs of producing ethanol from fermented broths of corn, or straw and other kinds of biomass feedstocks:
The technology will help to address the serious concern regarding the energy efficiency of bioethanol production, according to Robert L. Fireovid, ARS national program leader for process engineering and chemistry, Beltsville, Md.
The researchers’ invention, called a spiral-wound liquid membrane module, could potentially replace the widely used process of distilling ethanol from fermentation broths. The module offers ethanol producers the important advantage of combining two separation processes, extraction and membrane permeation, in one piece of equipment.
Right now, energy is the second biggest cost in ethanol production. Feedstocks, of course, are first.


The U.S. Department of Energy has awarded three grants of $125 million each to set up Bioenergy Research Centers in Oak Ridge, Tennessee; Madison, Wisconsin; and near Berkeley, California.
Just as Imperium Renewables is set to open the nation’s biggest biodiesel refinery with a 100-million-gallon-a-year plant in Washington state, there could be a contender out there that will produce three times as much annually.
Biodiesel giant Imperium Renewables is on schedule to open a 100-million-gallon-a-year biodiesel refinery next month at Gray’s Harbor in Washington state… although there’s been some rumors there might be delays .
Iowa-based Renewable Energy Group has broken ground on what will be a 60-million-gallon-a-year biodiesel plant in Emporia, Kansas.
The world’s first biodiesel plant using algae as its feedstock is set to open within a year at a location in Alabama.
The first 50,000 gallons of biodiesel has rolled off the line at the new Momentum Biofuels, Inc. refinery at LaPorte, Texas.
Meat-producing giant Tyson is making a bid to be a player in the burgeoning biodiesel market.