Trees that can reach a height of 27-28 feet in just six years, and that can be grown on fallow farmland in rows, can be a major replacement for fossil fuels.
True, U.S. scientists suggest not to burn wood, and produce ethanol from cultivated trees, just as is currently done with the use of feedstock crops and cane.
The advantage of wood technology, intended biologists from Purdue, will be much higher productivity areas. In 2005, ethanol was less than 3% of the fuel combusted in road transportation in the U.S., but as much as 13% of the national grain harvest was used that to develop this spirit.
U.S. to replace 30% used in the country of motor fuel to ethanol by 2030. But to achieve this goal, we must find a more powerful source of vegetable raw materials. At Purdue believe they can become a hybrid poplar. After a series of improvements.
Thus, in the present study, they focused on finding the genetic correction methods of synthesis of lignin - the composition, a beneficial effect on the strength and power structure of trees, but prevents the subsequent extraction of pulp - raw material for the synthesis of ethanol.
Scientists plan to look at what genetic modification and how can affect various properties of plants that affect their suitability as a raw material for the mass production of motor fuel.
In particular, the trees could produce during the growth of the modified lignin or a similar composition, so that he (lignin) did not interfere with production of cellulose (the enzymes used in production would get easier access to plant cells), and even so, that he altered lignin could serve as raw material for the synthesis of alternative motor fuels (currently impossible).
Thus, the fast-growing trees could be a worthy substitute grain and cane - in terms of production of ethanol, and in general - oil fuel. And not only because of its large mass, but also due to more complete its intended use.
0 comments:
Post a Comment