We demonstrate, on the basis of molecular dynamics simulations, the possibility of an efficient water-ethanol separation using nanoporous carbon membranes, namely, carbon nanotube membranes, nanoporous graphene sheets, and multilayer graphene membranes. While these carbon membranes are in general permeable to both pure liquids, they exhibit a counter-intuitive "self-semi-permeability" to water ...

The use of hydrous ethanol DI fuel for knock avoidance in conjunction with PFI gasoline is investigated. The properties of the hydrous ethanol are described and constraints on the ethanol-water-hydrocarbon mixtures quantified. After a selection of the appropriate water-ethanol blends, calculations are performed using an engine simulation coupled to a kinetic calculation to determine the require...

The permeation of different organic molecules in water solvent and in 12% ethanolwater solution by hydrophilic reverse osmosis membrane was studied. The membrane was conditioned to the ethanol-water solution before the experiments. Initially, the membrane was characterized by water and ethanol-water solutions. The permeation of four solutes (tyramine, proline, glucose and tartaric acid) showed ...

It is well known that the acetic acid bacteria can rapidly oxidize ethanol to acetic acid. But whether ethanol can serve as a source of carbon and energy for these bacteria has not been clearly established. Pasteur (1868) noted that Mycoderma aceti which is undoubtedly Acetobacter aceti (Frateur, 1950) can grow well in ethanol media only if acetic acid is also present. Addition of one or two pe...

Wistar rats were allowed to drink ethanol in a two-bottle (water vs 2-8% v/v ethanol) and then in a three-bottle choice paradigm (water vs 8% ethanol vs 16% ethanol, v/v). After 7 months of free access to alcohol, the subjects were trained to respond for 8% ethanol in an operant procedure. No relationship was found between prior alcohol drinking and lever pressing for ethanol.

Background: To mitigate climate impacts associated with energy consumption, renewable fuel policies have been established in the USA that encourage production and use of corn ethanol. Current fuel usage of corn ethanol is approximately 15 billion gallons/year (57 billion liters/year), with nearly all of this in the form of E10 (10% blend in gasoline). There is now interest in increasing fuel et...

Objective: Ethanol abuse exacerbates copper (Cu) and zinc (Zn) deficiencies resulting in metabolic alterations that frequently lead to increased ethanol intake. This preliminary study examined the effect of Cu and Zn amino acid chelate (AAC) supplementation on ethanol intake in ethanol-dependent rats compared to non-supplemented ethanoldependent rats. Methods: After creating ethanol dependency ...

BACKGROUND While advantages of biofuel have been widely reported, studies also highlight the challenges in large scale production of biofuel. Cost of ethanol and process energy use in cellulosic ethanol plants are dependent on technologies used for conversion of feedstock. Process modeling can aid in identifying techno-economic bottlenecks in a production process. A comprehensive techno-economi...