Priligy online now, save money

NOV 19

Recent Comment

"I does not matter the efficiencies if the GW kills us. We must elimina..."

View all Comments

MIT Proposes Partial CCS - Capture Less CO2 At Lower Cost



Let’s get one thing straight off the bat: carbon capture and levitra no prescription canada storage (CCS) technology has a ways to go before it convinces anyone that it is a real long term solution. Personally, I think there’s a greater chance of seeing the hydrogen economy develop before we see CCS achieve any real success, and we all know that the cheap viagra from uk hydrogen economy is levitra prescription drugs always ten years away…

Nonetheless, there is reality to contend with. The reality is that there is an ever-increasing demand for more power that is available all the time. For now, at least, we can’t meet all of that demand without resorting, at least a little bit, to things like coal. That being said, let’s take a look at a proposal being made by the levitra mg MIT Energy Initiative regarding what they call “partial capture” CCS.

The basic idea is that states are starting to regulate CO2 levels. No one knows what to link for you get cialis do. No one wants to invest in the CCS solutions that are on the table, since they increase capital costs by 30-60% and they make the power plant less efficient, so the price of buying cialis soft tabs 100 mg electricity per kwh goes up. But, says the MIT team, that all depends on how much carbon you actually capture.

Full carbon capture has been defined as capturing 90% or more of the CO2. The working assumption has been that CCS follows economies of scale. For example, when you build a plant that can manufacture a lot of something, the cost per thing goes down. Similarly, the expectation is that if a CCS plant captures a lot of carbon, the cost-per-ton-captured will go down.

What the MIT folks did was build a model to see how the cost changes as more CO2 is captured by the device, taking into account the technological reality. One key aspect of that technological reality is that at a certain point between 0% and 90% CO2 captured you need to add another CCS device. Thus, the study found that it is optimal to design a "partial capture" system. Instead of capturing 90% of the CO2, only capture 60%. This will still reduce emissions to acceptable state levels (comparable to those of a natural gas plant), and is cheap enough for the power providers to generic viagra overnight deliver western union actually consider.

Does this mean we should try to wean ourselves off of cialis 5mg prices coal? Absolutely not! But this is buy discount cialis still a good thing. It gives coal power plants a chance to at least move in a green direction. It may even give CCS a chance to prove itself. More than anything, it gives credence to the notion that the green revolution can be achieved through a process of discrete, realistic steps.

Via MIT

Hits: 14118
Comments (5)Add Comment
0
what is this article trying to say?
written by SolarDaveC, November 20, 2008
I'm confused about what this article is reporting... that if we try less and only do 60% CCS instead of 90%, it's going to be cheaper? Not to webmd pfizer erectile disfunction say that I'm smarter than the collective minds of MIT, but I thought this was pretty obvious.

Also:

> Does this mean we should try to wean
> ourselves off of coal? Absolutely not!

Wait, why aren't we trying to wean ourselves off of coal?
0
Price coal with CCS technology assumptio
written by Biotecchie, November 29, 2008
Certainly fossil fuels will continue to be used, but until there is a level playing field with respect to price, green energy technologies will not be able to compete - nor will clean coal technologies compete with old fashioned dirty coal.

What is needed is a clear policy that charges coal-burning power plants for the CO2 they emit. That cost should be equivalent to a significant fraction of what it would cost to capture and sequester the CO2. These charges (i.e. taxes) should then be used to underwrite the viagra no prescription capital costs of green technologies.

What is implicit but not stated in this article is that it is necessary to meivending.com burn 1/3 more coal to generate the energy required to capture CO2 from coal-fired power plants. The carbon capture technology likewise adds to the capital cost. If these costs are taken into account, wind and photovoltaic energy are far more competitive.

Also: SolarDaveC is not alone in being confused. I think the author meant to sat is "Does this mean we should NOT try to wean ourselves off of coal?" and was undone by an overzealous editor.
0
Slippage
written by Frank Campi, November 29, 2008
If one looks at Carbon Capture Systems, the 80/20 rule typically applies. That is, it is as expensive to capture the last 20% as the first 80%. This study suggests that a really inexpensive system with minimum impact on the plant economics or capacity would can capture only 60% of the emissions. Make sense to me.
0
...
written by Jeff Green, November 30, 2008
Coal is one of the main culprits of online cialis pharmacy GW. In my mind 60% is just not good enough. The plants last 50 to 60 years and the utilities will dry until they get their way about keeping them. Its a problem I want to canada cheap levitra get rid of and scrapped forever.
0
if carbon is http://www.calamusdesign.it/viagra-for-sale the killer then eliminate i
written by RonSmith, December 03, 2008
I does not matter the efficiencies if the GW kills us. We must eliminate emitting carbon into the generic cialis soft online atmosphere. Only 90 plus % will save us from us.
I believe that the money people will, if prodded properly, find the ultimate solution.
When the survival of the planet can be expressed in terms of money, then we will survive.

Write comment

security code
Write the displayed characters


busy
 

Are you an EcoGeek?

We've got to keep 7 billion people happy without destroying our planet. It's the biggest challenge we've ever faced....but we're taking it on. Are you with us?