生物谷报道：美国科研人员正在研究利用木材生产一种新型生物燃料，这种燃料可以与生物柴油混合用于给传统的发动机发电。
美国乔治亚大学的研究小组在美国化学协会的杂志《能源与燃料》网络版上发表了该项研究结果。
乔治亚大学的Tom Adams在周五的新闻发布会上表示：这项发明最激动人心的一点是操作很容易，希望通过这个方法可以显著减少利用生物质生产生物燃料的费用。他表示：这个生产生物燃料的廉价方法生产出的燃料可以直接应用在未加任何改造的柴油机中，或者与生物柴油和石油柴油混合使用。
他表示：这种燃料接近于碳中性，这就意味着只要种植新的树木以补充用来生产生物燃料的部分，这项技术就不会显著增加大气中的二氧化碳浓度。
英文原文：
Scientists turn woodchips into engine fuel
ATHENS, Ga., May 18 (UPI) -- U.S. researchers are working on a new biofuel derived from wood chips that can be used with biodiesel to power conventional engines.
The findings from a team at the University of Georgia were reported in the early online edition of the American Chemical Society journal Energy and Fuels.
"The exciting thing about our method is that it is very easy to do," Tom Adams, director of the UGA Faculty of Engineering outreach service, said Friday in a news release. "We expect to reduce the price of producing fuels from biomass dramatically with this technique."
Adams said a new chemical process inexpensively treats the oil so that it can be used in unmodified diesel engines or blended with biodiesel and petroleum diesel.
He said the fuel is nearly , which means it doesn't significantly increase heat-trapping carbon dioxide in the atmosphere as long as new trees are planted to replace the ones used to create the fuel.
Copyright 2007 by United Press International. All Rights Reserved.
原始出处：
Energy Fuels, ASAP Article 10.1021/ef060533e S0887-0624(06)00533-0
Web Release Date: May 18, 2007 Copyright © 2007 American Chemical Society
Production and Fuel Properties of Pine Chip Bio-oil/Biodiesel Blends
Manuel Garcia-Perez, Thomas T. Adams,* John W. Goodrum, Daniel P. Geller, and K. C. Das
Faculty of Engineering Outreach Service and the Department of Biological and Agricultural Engineering, University of Georgia, Athens, Georgia 30602
Received October 24, 2006
Revised Manuscript Received February 5, 2007
Abstract:
The use of pyrolysis-derived bio-oil as a diesel-fuel extender or substitute has long been a goal of the bio-oil research community. In this paper, a simple system to accomplish that goal is described. The production of pine-chip-derived bio-oils, the preparation, and fuel properties of bio-oil/biodiesel blends are presented. Pyrolysis-condensed liquids were obtained from the pyrolysis of pine chips and pine pellets in batch and auger slow-pyrolysis reactors. These liquids were composed of two phases: an oily bottom phase and an aqueous phase. The removal of most of the water present in the aqueous phase results in the formation of a second oily phase called, in this paper, polar oil. The oily bottom phases were more soluble in biodiesel than the polar oils. Monolignols, furans, sugars, extractive-derived compounds, and a relatively small fraction of oligomers were the main bio-oil compounds soluble in biodiesel. Water and low-molecular-weight compounds responsible for many of the undesirable fuel properties of bio-oils were poorly dissolved in biodiesel. Select fuel properties of bio-oil/biodiesel blends, such as viscosity, density, calorific value, water content, and pH, are reported.
全文链接：http://pubs.acs.org/cgi-bin/asap.cgi/enfuem/asap/html/ef060533e.html
