新技术可将天然气迅速转化为能源-凯发k8官网

新技术可将天然气迅速转化为能源
文章来源:未知 文章作者:enread 发布时间:2013-05-08 07:40 字体: [ ] 
(单词翻译:双击或拖选)
chemical engineering researchers have identified a new 1 to convert natural gas into energy up to 70 times faster, while effectively capturing the greenhouse gas carbon dioxide (co2). "this could make power generation from natural gas both cleaner and more efficient," says fanxing li, co-author of a paper on the research and an assistant professor of chemical and biomolecular engineering at north carolina state university.
 
at issue is a process called chemical looping(循环), in which a solid, oxygen-laden material -- called an "oxygen carrier" -- is put in contact with natural gas. the oxygen atoms in the oxygen carrier interact with the natural gas, causing 3 that produces energy.
 
previous state-of-the-art oxygen carriers were made from a composite of 4(惰性的) 5 material and metal oxides. but li's team has developed a new type of oxygen carrier that include a "mixed ionic-electronic conductor," which effectively shuttles oxygen atoms into the natural gas very 6 -- making the chemical looping combustion process as much as 70 times faster. this mixed conductor material is held in a nanoscale matrix with an iron 2 -- otherwise known as 7. the rust serves as a source of oxygen for the mixed conductor to shuttle out into the natural gas.
 
in addition to energy, the combustion process produces water 8 and co2. by condensing out the water vapor, researchers are able to create a stream of concentrated co2 to be capture for sequestration.
 
because the new oxygen carrier combusts natural gas so much more quickly than previous chemical looping technologies, it makes smaller chemical looping 9 more economically feasible -- since they would allow users to create the same amount of energy with a smaller system.
 
"improving this process hopefully moves us closer to commercial applications that use chemical looping, which would help us limit greenhouse gas emissions," li says.


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1 zcwxr     
n.机械装置;机构,结构
参考例句:
  • the bones and muscles are parts of the mechanism of the body.骨骼和肌肉是人体的组成部件。
  • the mechanism of the machine is very complicated.这台机器的结构是非常复杂的。
2 k4dz8     
n.氧化物
参考例句:
  • oxide is usually seen in our daily life.在我们的日常生活中氧化物很常见。
  • how can you get rid of this oxide coating?你们该怎样除去这些氧化皮?
3 4qkzs     
n.燃烧;氧化;骚动
参考例句:
  • we might be tempted to think of combustion.我们也许会联想到氧化。
  • the smoke formed by their combustion is negligible.由它燃烧所生成的烟是可忽略的。
4 jbxzh     
adj.无活动能力的,惰性的;迟钝的
参考例句:
  • inert gas studies are providing valuable information about other planets,too.对惰性气体的研究,也提供了有关其它行星的有价值的资料。
  • elemental nitrogen is a very unreactive and inert material.元素氮是一个十分不活跃的惰性物质。
5 lusyc     
n.制陶业,陶器,陶瓷工艺
参考例句:
  • the order for ceramic tiles has been booked in.瓷砖的订单已登记下来了。
  • some ceramic works of art are shown in this exhibition.这次展览会上展出了一些陶瓷艺术品。
6 zutzxq     
adv.高效率地,有能力地
参考例句:
  • the worker oils the machine to operate it more efficiently.工人给机器上油以使机器运转更有效。
  • local authorities have to learn to allocate resources efficiently.地方政府必须学会有效地分配资源。
7 xyixu     
n.锈;v.生锈;(脑子)衰退
参考例句:
  • she scraped the rust off the kitchen knife.她擦掉了菜刀上的锈。
  • the rain will rust the iron roof.雨水会使铁皮屋顶生锈。
8 dhjy2     
n.蒸汽,雾气
参考例句:
  • the cold wind condenses vapor into rain.冷风使水蒸气凝结成雨。
  • this new machine sometimes transpires a lot of hot vapor.这部机器有时排出大量的热气。
9 774794d45796c1ac60b7fda5e55a878b     
起反应的人( reactor的名词复数 ); 反应装置; 原子炉; 核反应堆
参考例句:
  • the tmi nuclear facility has two reactors. 三哩岛核设施有两个反应堆。 来自英汉非文学 - 环境法 - 环境法
  • the earliest production reactors necessarily used normal uranium as fuel. 最早为生产用的反应堆,必须使用普通铀作为燃料。
tag标签: carbon gas greenhouse
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