- published: 23 Jul 2014
- views: 7793
A biofuel is a type of fuel whose energy is derived from biological carbon fixation. Biofuels include fuels derived from biomass conversion, as well as solid biomass, liquid fuels and various biogases. Although fossil fuels have their origin in ancient carbon fixation, they are not considered biofuels because they contain carbon that has been "out" of the carbon cycle for a very long time. Biofuels are gaining increased public and scientific attention, driven by factors such as oil price hikes, the need for increased energy security, concern over greenhouse gas emissions from fossil fuels, and support from government subsidies.
Bioethanol is an alcohol made by fermentation, mostly from carbohydrates produced in sugar or starch crops such as corn or sugarcane. Cellulosic biomass, derived from non-food sources such as trees and grasses, is also being developed as a feedstock for ethanol production. Ethanol can be used as a fuel for vehicles in its pure form, but it is usually used as a gasoline additive to increase octane and improve vehicle emissions. Bioethanol is widely used in the USA and in Brazil. Current plant design does not provide for converting the lignin portion of plant raw materials to fuel components by fermentation.
Snow came up Friday, I gotta go
Spending winter up in Buffalo
Someone I met there is calling me so
Got to escape the blues man, don't you know
Days of sinking summer packed up and gone
Nothing helps me, there's nothing wrong
It was so pleasant, incandescent, it's over now
We should get going
Lady I know there, name of Christina
Six lonely lifetimes since I've seen her
She takes you places your heart cannot go
During the winter up in Buffalo
Days by her fire, dazed in the glow
Winter surrounds us up in BuffaloDays of drowsy pleasure in the afternoon dark
We drift together, we drift apart
She's got the wherewithal, she's got the knowledge
It's wonderful
I should be going
Out there the Snow Queen is kidnapping boys
Her block-of-ice heart tunes out the noise
And soft in the bedroom her eyes indigo
Sleeping in the winter in Buffalo
Down in Buffalo