首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Not every breakthrough sounds like rocket science. Simple but novel ideas can work wonders. A radical new way to tackle clima
Not every breakthrough sounds like rocket science. Simple but novel ideas can work wonders. A radical new way to tackle clima
admin
2019-11-13
55
问题
Not every breakthrough sounds like rocket science. Simple but novel ideas can work wonders.
A radical new way to tackle climate change is to pump CO
2
into the volcanic rock under Iceland and speed up a natural process where the basalts (玄武岩) react with the gas to form carbonate minerals, which make up limestone. Such carbon capture and storage (CCS) is thought to be essential to halting global warming.
The Iceland project has already been increased in scale to bury 10, 000 tons of CO
2
a year and the basalt rocks used are common globally, forming the floor of all the oceans and parts of the land too. One potential challenge for the new technique is that it requires large amounts of water: 25 tonnes for each tonne of CO
2
buried. But seawater could be used, which would be in plentiful supply at coastal sites.
The research, called the Carbfix project, took place at Iceland’s Hellisheidi power plant, the world’s largest geothermal facility. The plant pumps up volcanically heated water to run electricity-generating turbines but this also brings up volcanic gases, including carbon dioxide and nasty-smelling hydrogen sulphide.
The researchers re-injected 230 tonnes of the gas, which was dissolved in water to prevent it from escaping, down into the basalt to a depth of 400m-500m. They used tracer chemicals to show that over 95% of CO
2
was turned into stone within two years.
In conventional CCS, the CO
2
is stored as a gas in sedimentary rocks such as exhausted oil fields under the North Sea. Unlike basalt, these rocks lack the minerals needed to convert CO
2
into stone. Such sedimentary reservoirs could potentially leak and therefore have to be monitored, which adds to costs. Unlike the basalt-based CCS, conventional CCS also requires the CO
2
to be separated from the mix of gases emitted by power stations and industrial plants, which is expensive.
Stuart Haszeldine, a professor of CCS, said: "It may well provide a low-cost and very secure remedy for parts of the world where the suitable rocks exist. But other existing propositions need to be used, because the problem to be solved of millions of tonnes of CO
2
emissions per year worldwide is immense and no single remedy is anywhere near big enough or fast enough."
Other innovative approaches to CCS are being explored, including a project using fuel cells to make capturing CO
2
cheaper and one from Ford which uses CO
2
to make foam for use in their vehicles. Groups are also working on chemical advances to capture CO
2
more easily.
The research at Hellisheidi power plant aimed at______.
选项
A、dissolving much CO
2
into water
B、bringing up volcanic or other gases
C、running turbines with heated water
D、turning CO
2
into stone relatively quickly
答案
D
解析
前三个选项与电厂的工作原理有关,并非是该科研项目的最终目的。
转载请注明原文地址:https://kaotiyun.com/show/NDHO777K
0
研究生英语学位课统考(GET)
相关试题推荐
"Ihavegreatconfidencethatbytheendofthedecadewe’llknowinvastdetailhowcancercellsarise,"saysmicrobiologistRo
"Ihavegreatconfidencethatbytheendofthedecadewe’llknowinvastdetailhowcancercellsarise,"saysmicrobiologistRo
Electronicmailhasbeeninwidespreaduseformorethanadecade,simplifyingtheflowofideas,connectingpeoplefromdistant
Verysoon,unimaginablypowerfultechnologieswillremakeourlives.Thiscouldhavedangerousconsequences,especiallybecause
Whentheyadviseyourkidsto"getaneducation"ifyouwanttoraiseyourincome,theytellyouonlyhalfthetruth.Whatthey
Whentheyadviseyourkidsto"getaneducation"ifyouwanttoraiseyourincome,theytellyouonlyhalfthetruth.Whatthey
Therelationshipbetweenformaleducationandeconomicgrowthinpoorcountriesiswidelymisunderstoodbyeconomistsandpoliti
Ithasbeenarguedthatwhereschoolsbecomebureaucratized,theybecomeboundupwiththetechniquesandimplementationofthe
Insuchachanging,complexsocietyformerlysimplesolutionstoinformationalneedsbecomecomplicated.Manyoflife’sproblems
随机试题
下列关于条件反射的描述,正确的是
患者,男,为原发性肝癌患者,某日突然出现腹部剧痛及腹膜刺激征,首先应考虑()
营业地在我国的甲公司向营业地在英国的乙公司订购电脑2000台。合同规定,电脑价格为每台600美元CIF上海,2004年7月2日纽约港装货,合同未约定法律适用问题。货物于2004年7月2日装船,但是外包装有破损。乙公司向船公司出具了货物品质的保函。船长应乙公
小明思维灵活,行动敏捷,适应性强,但是缺2_i耐心和毅力,稳定性差,见异思迁,小明的气质类型是()。
回避批评,缺点就会在_________中变成问题;拒绝批评,问题就会在延时误事中变成难题;压制批评,难题就会在_________中变成老大难题。填入画横线部分最恰当的一项是:
为什么地球、太阳等亿万个星球,亿万年来能在宇宙间相安无事地运行而不发生冲撞呢?为什么人与人之间,经常会发生磕磕碰碰的事呢?人文专家告诉我们,地球、太阳等亿万个星球都运行在自己的轨迹上,都走在自己的路上,而我们人类却非如此,有的人见别人的路好走,就想去走别人
法在执行社会公共事务上的作用具体表现是()。
下列关于Winmail邮件服务器配置、使用与管理的描述中,正确的是()。
Oneoftheimportantpropertiesofascientifictheoryisitsabilityto_____furtherresearchandfurtherthinkingaboutaparti
A、Callafriend.B、Takeataxi.C、Workonhiscar.D、Walktowork.B信息明示题。男士问没有车他怎么去上班,女士建议说:“何不叫辆计程车呢?”所以B“坐计程车”是正确答案。A“给朋友打电话
最新回复
(
0
)