Renewable Energy: Biomass
As a pending global energy crisis appears more and more imminent, it is important to consider many different options for new energy sources. Renewable energy sources are ideal becau they are more efficient, environmentally friendly and, ultimately, better for consumers. Biomass can be converted into fuels through a number of different process, including solid fuel combustion, digestion, pyrolysis, and fermentation and catalyzed reactions.
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Electricity is generated in many places through solid fuel combustion. The majority of America’s electricity is fueled by coal combustion. However, many states, especially California, are encouraging companies to u biomass fuels to generate electricity. The products are usually wood matter, vegetation, waste from lumber yards, and the like. Power plants burn such fuels to heat a boiler, and the resulting steam powers turbines & generators. This process still releas a lot of carbon dioxide and other polluting gas into the environment, but helps eliminate waste efficiently.
Digestion is another process that makes u of existing waste. The term is a misnomer. Digestion is the naturally occurring process of bacteria feeding on decaying matter and making it decompo. It is that which releas gas like methane, hydrogen, carbon monoxide, etc. In many landfills, owners are experimenting with t-ups to best collect the gas produced by such bacteria. The standard system includes pipelines running through the waste to collect the gas. Animal feed lots and other facilities are also exploring tapping such resources. A zoo in upstate New York is using their elephant manure to do the same thing. Benefits of this process include the relative lack of impurities in the gas produced and the fact that the synthesis gas (carbon monoxide and hydrogen) can be converted to any kind of hydrocarbon fuel.
英语作业 A third process, pyrolysis, creates a product much like charcoal, with double the energy density of the original biomass, making the fuel highly transportable and more efficient. Anhydrous pyrolysis heats the biomass at inten temperatures in the abnce of oxygen or water. Scientists assume that this is the process that originally produced fossil fuels (under different conditions). Most industrial process of pyrolysis convert the biomass u
nder pressure and at temperatures above 800° F (430° C). A liquid fuel can also be produced using this process. 清洁工的英文
The most widely ud alternative fuel, ethanol, is created through fermentation of organic materials. Ethanol has a current capacity of 1.8 billion gallons per year, bad on starch crops such as corn. Again, the fuel conversion process takes advantage of a natural process. Microorganisms, especially bacteria and yeasts, ferment starchy, sugary biomass products (like corn), yielding products like ethanol, which can be ud as fuels in a variety of applications. Biodiel is an increasingly popular fuel, especially in the transportation ctor. This mono-alkyl ester is formed by combining fuel-grade oil, procesd from sources like vegetable oil, animal fats, algae and even ud cooking grea, with an alcohol (like methanol or ethanol), using a catalyst. It shows great promi as both a neat fuel (ud alone) and as an additive to petroleum diel. sgn
Using biomass could be the answer to the energy questions made more imminent by the recent cris that have further threatened our oil supply. The current technologies tak
e advantage of many natural, long-utilized process in order to create “new” kinds of fuel. Upon further obrvation, one realizes that the fuels are very basic, using the most readily available energy sources with very simple, standardized process that greatly reduce pollution and offer hope for the future.
南京国际中学
Renewable Energy: Biomass
可再生能源：生物量
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gametime>k歌情人As a pending global energy crisis appears more and more imminent, it is important to consider many different options for new energy sources. Renewable energy sources are ideal becau they are more efficient, environmentally friendly and, ultimately, better for consumers. Biomass can be converted into fuels through a number of different process, including solid fuel combustion, digestion, pyrolysis, and fermentation and catalyzed reactions.
ika作为一个悬而未决的全球能源危机似乎越来越迫在眉睫，重要的是要考虑新能源的许多不
miss you什么意思
同的选择。可再生能源是理想的，因为它们更有效高效，环保，最终为消费者带来更好。生物质可以转化为燃料，通过许多不同的过程，包括固体燃料的燃烧、消化、热解和发酵和催化反应。
Electricity is generated in many places through solid fuel combustion. The majority of America’s electricity is fueled by coal combustion. However, many states, especially California, are encouraging companies to u biomass fuels to generate electricity. The products are usually wood matter, vegetation, waste from lumber yards, and the like. Power plants burn such fuels to heat a boiler, and the resulting steam powers turbines & generators. This process still releas a lot of carbon dioxide and other polluting gas into the environment, but helps eliminate waste efficiently.
在许多地方，通过固体燃料燃烧产生电。美国的大部分电力是由煤炭燃烧的。然而，许多国家，特别是加利福尼亚，是令人鼓舞的公司使用生物质燃料发电。这些产品通常是木头的物质，植被，木材的废料，以及类似的。发电厂燃烧这种燃料，加热锅炉，和钍产生蒸汽涡轮机和发电机。这个过程仍然释放了大量的二氧化碳和其他污染气体进入环境，但有助于有效地消除浪费。
