What to Do about Coal?

Cheap, plentiful coal is expected to fuel power plants for the foreseeable future, but can we keep it from devastating the environment?















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Policy Push Is Needed
Those good reasons for commencing concerted CCS efforts soon will probably not move the industry unless it is also prodded by new public policies. Such initiatives would be part of a broader drive to control carbon dioxide emissions from all sources.

In the U.S., a national program to limit CO2 emissions must be enacted soon to introduce the government reg­ulations and market incentives nec­essary to shift investment to the least-polluting energy technologies promptly and on a wide scale. Leaders in the American business and policy communities increasingly agree that quantifiable and enforceable restrictions on global warming emissions are imperative and in­evitable. To ensure that power companies put into practice the reductions in a cost-effective fashion, a market for trading CO2 emissions credits should be created—one similar to that for the ­sulfur emissions that cause acid rain. In such a plan, organizations that intend to exceed designated emission limits may buy credits from others that are able to stay below these values.

Enhancing energy efficiency efforts and raising renewable energy production are critical to achieving carbon dioxide limits at the lowest possible cost. A portion of the emission allowances created by a carbon cap-and-trade program should be allocated to the establishment of a fund to help overcome institutional barriers and technical risks that obstruct widespread deployment of otherwise cost-effective CO2 mitigation technologies.

Even if a carbon dioxide cap-and-trade program were enacted in the next few years the economic value of CO2 emissions reduction may not be enough initially to convince power providers to invest in power systems with CCS. To avoid the construction of another generation of conventional coal plants, it is essential that the federal government establish incentives that promote CCS.

One approach would be to insist that an increasing share of total coal-based electricity generation comes from facilities that meet a low CO2 emissions standard—perhaps a maximum of 30 grams of carbon per kilowatt-hour (an achievable goal using today’s coal CCS technologies). Such a goal might be achieved by obliging electricity producers that use coal to include a growing fraction of decarbonized coal power in their supply portfolios. Each covered electricity producer could either generate the required amount of decar­bonized coal power or purchase decarbonized-generation credits. This system would share the incremental costs of CCS for coal power among all U.S. coal-based electricity producers and consumers.

If the surge of conventional coal-fired power plants currently on drawing boards is built as planned, atmospheric carbon dioxide levels will almost certainly exceed 450 ppmv. We can meet global energy needs while still stabilizing CO2 at 450 ppmv, however, through a combination of improved efficiency in energy use, greater reliance on renewable energy resources and, for the new coal investments that are made, the installation of CO2 capture and geologic storage technologies. Even though there is no such thing as “clean coal,” more can and must be done to reduce the dangers and environmental degradations associated with coal production and use. An integrated low-carbon energy strategy that incorporates CO2 capture and storage can reconcile substantial use of coal in the coming decades with the imperative to prevent catastrophic changes to the earth’s climate. 



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  1. 1. eco-steve 10:35 AM 3/19/09

    CCS is but one inconvenience of burning coal. A second and more important one is ressource depletion. We are apparently not going to leave the slightest scrap of fossil energy sources for our descendants. Coal, when developing countries start consuming it, will not last more than 150 years. This is the time foresters envisage before harvesting an oak tree! Whatever happened to foresight in economic planning. What has happened to the notion of strategic stocks set aside for the future. Just as our world economic system is collapsing, climate change and ressource depletion will cause havoc as of now, if only we will recognise the truth of our carbon gluttony.
    Yet we do have a choice : Biochar technology parallel with energy efficiency laws based on a carbon tax of $30 per ton of CO2 emitted.
    see www.EPRIDA.com Good coal burning is no coal burning...

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  2. 2. deebunkr 11:27 AM 3/19/09

    BORON

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  3. 3. deebunkr 11:29 AM 3/19/09

    Boron, boron, boron.

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  4. 4. dukebaker 12:26 PM 3/19/09

    Forget sequestering CO2 from the coal fired power plants. They generate over 35 tillion pounds of CO2 every year worldwide. This is enough to build a mountain of solid dry ice a mile high. There is nowhere on earth to bury this much, even if you could transport it to the holes. The CO2 that coal generates weighs over 3 times as much as the coal itself. Think of the coal trains you see going across America.

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  5. 5. ecoserve 12:30 PM 3/19/09

    It is really obvious this story was written in the dark ages of knowledge concerning the realities of carbon capture and storage. In the intervening two years, we have seen rapid escalation of costs in every conceivable way from construction costs of the power plants themselves to severe escalation of projected costs to build and operate CCS facilities. In fact, the University of Kentucky' Center for Applied Energy Research made a presentation last December that showed CCS will result in a 25-40% "parasitic" energy cost in a new power plant.

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  6. 6. ecoserve 12:34 PM 3/19/09

    It is really obvious this story was written in the dark ages of knowledge concerning the realities of carbon capture and storage. In the intervening two years, we have seen rapid escalation of costs in every conceivable way from construction costs of the power plants themselves to severe escalation of projected costs to build and operate CCS facilities. In fact, the University of Kentucky' Center for Applied Energy Research made a presentation last December that showed CCS will result in a 25-40% "parasitic" energy cost in a new power plant.

    So on the bottom of the page, new coal is extremely expensive when compared to alternatives for generation but with new regulations coming for disposal of coal combustion waste and some form of increased fees for releasing carbon, either through Cap and Trade or the more easily understood carbon tax, coal is rapidly becoming a pariah instead of a panacea of our energy future.

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  7. 7. Biodiversivist 12:41 PM 3/19/09

    Finding ways to use a lot less electricity should be just as high on our priority list. I just reduced my heating bill 60%. If I used electricity for heat that would have been a huge reduction in electric load. The real question is how to motivate a few hundred million Americans to weatherize?

    http://biodiversivist.blogspot.com/2009/03/weatherization-nation-how-i-reduced-my.html

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  8. 8. Biodiversivist 12:44 PM 3/19/09

    Finding ways to use much less electricity should be just as high on the priority list. I just did an experiment on my house to see how much I could lower my heating bill with weatherization (60%). If I heated with electricity I would have made a serious dent in energy use. I documented how I did it below:

    http://biodiversivist.blogspot.com/2009/03/weatherization-nation-how-i-reduced-my.html

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  9. 9. vtminer 04:04 PM 3/19/09

    Although I am not a subscriber, or even a regular reader of SciAm, I find it appalling that they would even consider publishing an article of this nature considering there is very little science contained and is mostly the opinions of a select few. Science deals in FACTS. Items of discussion that can be proven experimentation, either in a lab or in the real world. Although science and history have proven that climate change is real, there has been NO real data that human activity is the cause. Also, as reputable scientists are beginning to discover, increased CO2 levels in the atmosphere are not the cause, but rather the effect, of increased average global temperatures. I refer you to a recent testimony by a Princeton physics professor, William Happer, to the US Senate Environment & Public Works Committee concerning global warming and the "scare" that the media is presenting to the public.

    CCS poses many other threats to the public aside from those noted here. How many millions or trillions of tons of natural resources (i.e. coal, gold, other MINED products) are we going to risk sterilizing if we pump the ground they are contained in full of high pressure CO2?

    England is proving that cap and trade does not work. It was implemented there several years ago and all that has occurred is the skyrocketing of power bills. There has been NO significant reduction in CO2 emissions since the implementation. Although we as homeowners may be able to reduce our personal power consumption to a certain degree, industry typically has a fixed baseload that they can do very little to reduce significantly. All of these costs will be passed on to the consumer. From a rise in utility bills to an increase in goods sold.

    While I do agree that we as a country need to be exploring alternative forms of energy, we do NOT need to shut the door on coal. "Green" energy such as wind and solar can barely meet the baseload demand in some areas and will never be able to meet peak demand since their generation capacities are so very limited and variable. As I can see it, only nuclear, and possibly hydrogen, have the potential to meet those needs and replace coal as a form of energy.

    And by the way, just in case you're wondering, yes, I live in WV, halfway between 2 of the largest mountain top removal jobs in the state. I am a coal miner and dang proud of it!

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  10. 10. realscience1 07:44 PM 3/19/09

    With the aticipated improvement in CCS as we build coat fired power plants, the United States will become the world's largest energy producer and at the same time, lower our carbon footprint. We will get back our manufacturing capabilities and regain our proper position as an economic giant. The anti-coal green hysterical movement will bankrupt us if we let them. Our government and our coal and power companies should wise up and get to work by using our tremendous coal reserves where we are the leaders in the world. Coal should be the new green giant, and those who say no deserve two black eyes for their blind stupidity.

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  11. 11. realscience1 08:39 PM 3/19/09

    We have more coal than any other country in the world. We can figure out clean, carbon-dioxide free, non-poluting methods of utilizing this asset or we don't deserve to be the economic giant we should be. Germany utilized coal to power their war machine during the latter part of World War II even while we were bombing the hell out of them. What are we, a bunch of quitters?

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  12. 12. realscience1 08:46 PM 3/19/09

    We have more coal than any other nation in the world. If we can't figure out clean, pollution-free, carbon-dioxide free methods to extract, transport and utilize this great asset, then we don't deserve to recapture our role as an economic giant. Germany used coal to power their war effort during the latter years of World War II even as we were bombing the hell out of them. What are we, a nation of quitters?

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  13. 13. Gosha 06:04 AM 3/20/09

    By David G. Hawkins, Daniel A. Lashof and Robert H. Williams as can, heat hands on a fire.
    Nobody extinguishes it(him) is going to.
    Yours Obama is surrounded with the fools, from the point of view of interests of the citizens, because do not react to the useful letters to address the president.
    I personally informed to your president, that in Russia the way of transformation of a thermal energy of an environment in mechanical job and electric power is open.
    Informed, that this invention is not necessary for Russia and has received from administration of the country the sanction to interaction with the foreign investor.
    To the officials, which surround Obama - to spit on all declared Obama of the initiative on preservation of an environment! The answer no from your wise men.
    How to concern to yours Obama, which holds in the environment of the fools - the assistants!?

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  14. 14. Gosha 06:22 AM 3/20/09

    By David G. Hawkins, Daniel A. Lashof and Robert H. Williams as can, heat hands on a fire.
    Nobody extinguishes it(him) is going to.
    Yours Obama is surrounded with the fools, from the point of view of interests of the citizens, because do not react to the useful letters to address the president.
    I personally informed to your president, that in Russia the way of transformation of a thermal energy of an environment in mechanical job and electric power is open.
    Informed, that this invention is not necessary for Russia and has received from administration of the country the sanction to interaction with the foreign investor.
    To the officials, which surround Obama - to spit on all declared Obama of the initiative on preservation of an environment! The answer no from your wise men.
    How to concern to yours Obama, which holds in the environment of the fools - the assistants!?

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  15. 15. JamesDavis 07:32 AM 3/20/09

    VTMINER, you are an idiot. I know you must have children. People with your mentality usually have a lot of children. You work hard everyday in destroying the very environment they will have to live in tomorrow and you can care less if they have clean water to drink, clean air to breathe, or non toxic land to live on. You do not see the destruction you leave in your wake or the deadly chemicals that is invading your children's body everyday. Coal is a destructive force and it is killing the land and the people who live around it. Wake up and smell the death you create around your family every day. Yes, I know you are proud to be a coal miner and I believe you must also be proud in being an idiot, after all -- The Hills Of West Virginia Have Eyes --.

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  16. 16. lgaten 08:42 AM 3/20/09

    Consider the technology outlined in this article before going too far down the path of burying this potential feedstock:

    http://www.technologyreview.com/Energy/18582/

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  17. 17. Less1leg 09:12 AM 3/20/09

    Spreading innuendo and not substance that's what spreading. You don't tell the whole story of using coal as a fuel source.
    Many large industries and generating companies have not been vigilant and using modern stack emissions or what is best called pollution control equipment. Most coal fired plants use antiquated very old technology emissions controls. So pollution and stack emissions is passed along to some other location many, many miles down wind of the plant. You know the old addage, the solution to pollution is dilution.
    But, coal is cheap, and the difference in profitablity and going into the red is using coal firing to balance the books. Coal gets the least amount of funds to clean it up, nuclear gets the most funding.
    Coal is affordable to all consumers, and other than hydraulic generation coal gets the shaft. Nuclear will bankrupt industries with ever increasing pricing. Subsidizing nuclear and so called Green energies is a pie in the sky liberal plan. In time that liberal plan "has" to be fully paid, and that is people, you will pay huge amounts of monthly billing to be "Green". Industries have to plan years in advance to forecast "if" they are going to be viable. Most heavy industries are forecasting doom, they know that if the Green Plans get further promoted they will not be viable in the North American market, so closing down plants is there only option.
    All you Green people who want to follow this stupidity, there are NO green jobs, only unemployment. You've priced energy for bulk users, combined with excessive laws and regulations on fossil fuels by forging ahead on "carbon taxation or carbon trading" to kill North American heavy industry.
    I say invest in coal fired plants smartly, install emission reduction equipment, promote clean coal technology, and make less restrictions on heavy industry.
    Environmentalists who support the Green industry stuff don't even work in the industry, all they are is a bunch of whiners, and doomsayers.
    I say invest in your neighbors job, keep energy affordable, and promote North American heavy industry.
    We have too, we're going broke.

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  18. 18. Quinn the Eskimo 01:18 AM 3/22/09

    CLEAN COAL.

    LOL

    )*( cooling tower or an ass your choice.

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  19. 19. jack.123 11:30 AM 11/16/09

    Dukebaker-3 times the weight?You don't get something from nothing.Where is all this extra mass coming from?

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  20. 20. jsobry 07:07 PM 7/19/11

    jack.123

    If C stands for the carbon in coal and O2 stands for the oxygen in the air then 3 times is approximately right. C+O2 weighs a lot more than C by itself.
    C has an atomic weight of 12 and O has an atomic weight of 16. Hence O2 has an atomic weight of 32.
    CO2, the result of combining the carbon in coal with oxygen, will weigh 44 in atomic weight. 44 divided by 12 will give about 3.8 that is to say CO2 weighs 3.8 times more than C all by itself .

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